JP2002369629A - Heat-insulating material for agricultural and horticultural facility - Google Patents
Heat-insulating material for agricultural and horticultural facilityInfo
- Publication number
- JP2002369629A JP2002369629A JP2001181860A JP2001181860A JP2002369629A JP 2002369629 A JP2002369629 A JP 2002369629A JP 2001181860 A JP2001181860 A JP 2001181860A JP 2001181860 A JP2001181860 A JP 2001181860A JP 2002369629 A JP2002369629 A JP 2002369629A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- agricultural
- resin
- heat insulating
- transmittance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
- A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、農園芸用ハウスの
屋根や外壁材等に用いられるフィルム状又はボード状の
資材であって、特に断熱効果を有する農園芸用施設用断
熱資材に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film-like or board-like material used for a roof or an outer wall of an agricultural and horticultural house, and more particularly to an insulating material for an agricultural and horticultural facility having an insulating effect. is there.
【０００２】[0002]
【従来の技術】従来、農業用や園芸用のハウスを始めと
する農園芸施設には、屋根や外壁材等として一般的に樹
脂フィルムや樹脂板が使用されている。その代表的な材
質としては、塩化ビニル樹脂、ポリエチレン樹脂、ポリ
エステル樹脂、フッ素樹脂等が一般的に使用され、最近
では耐侯性や紫外線領域の光透過性等に優れたフッ素樹
脂も注目されている。2. Description of the Related Art Conventionally, in agricultural and horticultural facilities such as agricultural and horticultural houses, a resin film or a resin plate is generally used as a roof or an outer wall material. As typical materials, vinyl chloride resin, polyethylene resin, polyester resin, fluororesin, and the like are generally used, and recently, fluororesins excellent in weather resistance, light transmittance in an ultraviolet region, and the like have attracted attention. .
【０００３】これら農園芸施設の屋根や外壁材等に使用
される資材は、その殆どが保温を目的として設計された
ものである。しかし、保温の目的は外気の遮断によって
ほぼ達成される一方、冬季以外においては施設内の温度
が高くなり過ぎることを避けるため、屋根や外壁材の一
部を開閉して温度調節を行う必要があった。Most of the materials used for roofs and outer wall materials of these agricultural and horticultural facilities are designed for keeping heat. However, while the purpose of keeping the heat is almost achieved by shutting off the outside air, it is necessary to control the temperature by opening and closing a part of the roof and outer wall materials to prevent the temperature inside the facility from becoming too high except in winter. there were.
【０００４】そのため、農園芸施設の屋根や外壁材等に
使用される資材として、農園芸従事者からは断熱性を備
えた資材の要求が高まっているが、これを考慮したフィ
ルム状又はボード状の資材は殆ど提供されていない現状
である。For this reason, there is an increasing demand from agricultural and horticultural workers for materials having heat insulating properties as materials used for roofs and outer wall materials of agricultural and horticultural facilities. Material is almost never provided.
【０００５】[0005]
【発明が解決しようとする課題】特開平９−３３０６１
２号公報には、ＯＡ機器用の部材として、近赤外線吸収
能力を有する色素を樹脂に添加して断熱特性を与える提
案がされている。また、特開平６−１１８２２８号公報
には、光学フィルターとして、銅イオンを含有させた断
熱樹脂が提案されている。SUMMARY OF THE INVENTION Japanese Patent Application Laid-Open No. 9-33061
No. 2 proposes to provide a heat insulating property by adding a dye having a near-infrared absorption capability to a resin as a member for OA equipment. Japanese Patent Application Laid-Open No. 6-118228 proposes a heat insulating resin containing copper ions as an optical filter.
【０００６】しかしながら、上記公報に提案された色素
や銅は耐侯性が低く紫外線や熱等による劣化が起こり易
いため、樹脂に含ませて断熱用資材として使用した場
合、屋外に長期間暴露されると早期に断熱効果が劣化す
るという欠点がある。また、色素の場合はブリードが発
生しやすいため、樹脂表面が白化して光透過性が極端に
低下するという欠点もある。従って、色素や銅イオンを
含む樹脂フィルム等は、特に農園芸施設用資材として長
期間の使用は困難であった。However, the dyes and coppers proposed in the above publication have low weather resistance and are liable to be deteriorated by ultraviolet rays, heat, and the like. Therefore, when used as a heat insulating material in a resin, they are exposed to the outdoors for a long time. There is a disadvantage that the heat insulating effect is deteriorated at an early stage. In the case of dyes, since bleeding is liable to occur, there is a disadvantage that the resin surface is whitened and the light transmittance is extremely reduced. Therefore, it has been difficult to use a resin film or the like containing a dye or copper ion as a material for agricultural and horticultural facilities, especially for a long time.
【０００７】本発明は、このような従来の事情に鑑み、
農園芸用ハウスの屋根や外壁材等に用いられるフィルム
状又はボード状の資材であって、耐侯性に優れると共
に、可視光を透過して必要な明るさを保持しながら、近
赤外光を効率よく遮蔽することにより断熱性を備えた農
園芸施設用断熱資材を提供することを目的とする。The present invention has been made in view of such a conventional situation,
A film-like or board-like material used for roofs and outer walls of agricultural and horticultural houses.It has excellent weather resistance and transmits near-infrared light while transmitting visible light and maintaining the required brightness. An object of the present invention is to provide a heat insulating material for an agricultural and horticultural facility having heat insulating properties by efficiently shielding.
【０００８】[0008]
【課題を解決するため手段】上記目的を達成するため、
本発明が提供する農園芸施設用断熱資材は、微粒子状の
断熱フィラーが分散した樹脂基材からなる断熱層を備
え、該断熱フィラーが六ホウ化ランタン及びアンチモン
添加酸化錫から選ばれた少なくとも１種であることを特
徴とする。In order to achieve the above object,
The heat-insulating material for agricultural and horticultural facilities provided by the present invention includes a heat-insulating layer composed of a resin base material in which fine-particle heat-insulating fillers are dispersed, and the heat-insulating filler is at least one selected from lanthanum hexaboride and antimony-added tin oxide. It is a seed.
【０００９】また、上記本発明の農園芸施設用断熱資材
は、可視光透過率が３０〜９０％であって、日射透過率
が１０〜８０％でであることを特徴とする。更には、紫
外線領域における波長３２０ｎｍの光透過率が５〜８０
％、及び波長２９０ｎｍの光透過率が０〜７０％である
ことを特徴とする。The heat insulating material for agricultural and horticultural facilities according to the present invention is characterized in that the visible light transmittance is 30 to 90% and the solar transmittance is 10 to 80%. Further, the light transmittance at a wavelength of 320 nm in the ultraviolet region is 5 to 80.
%, And light transmittance at a wavelength of 290 nm is 0 to 70%.
【００１０】上記本発明の農園芸施設用断熱資材におい
ては、前記断熱層における断熱フィラーの含有量が、六
ホウ化ランタンでは０.０１〜１ｇ／ｍ２、アンチモン
添加酸化錫では１.０〜５０ｇ／ｍ２であることが好ま
しい。また、前記断熱層の樹脂基材は、フッ素系樹脂又
はポリエチレンテレフタレイト樹脂であることが好まし
い。In the heat insulating material for an agricultural and horticultural facility of the present invention, the heat insulating layer contains 0.01 to 1 g / m 2 of lanthanum hexaboride and 1.0 to 1.0 g of antimony-added tin oxide. It is preferably 50 g / m 2 . Further, it is preferable that the resin base material of the heat insulating layer is a fluororesin or a polyethylene terephthalate resin.
【００１１】上記本発明の農園芸施設用断熱資材は、前
記断熱層のみからなる単一のフィルム状又はボード状で
あるか、若しくは前記断熱層がフィルム状又はボード状
の母材表面上又は２枚の母材間にラミネートされている
ことを特徴とする。The heat-insulating material for an agricultural and horticultural facility of the present invention is in the form of a single film or board consisting solely of the heat-insulating layer, or the heat-insulating layer is formed on the surface of a film- or board-like base material or in the form of a board. It is characterized in that it is laminated between two base materials.
【００１２】尚、本発明において、上記した各光透過率
の値は、建築窓ガラス用フィルムに関するＪＩＳ Ａ
５７５９（１９９８）（光源：Ａ光）に基づいて測定
し、算出したものである。ただし、測定用試料はガラス
に貼付せず、フィルム状又はボード状のものをそのまま
使用した。また、日射透過率は３５０〜２１００ｎｍの
波長域の光に対する透過率であり、本発明において農園
芸施設用断熱資材の太陽光線に対する断熱性を評価する
指標として使用した。更に、可視光透過率は３８０〜７
８０ｎｍの波長域の光に対する透過率であり、人間の目
に対する明るさを評価する指標として使用した。In the present invention, the values of the respective light transmittances described above are determined according to JIS A relating to a film for architectural glazing.
5759 (1998) (light source: A light). However, the measurement sample was not affixed to glass, and a film or board was used as it was. The solar radiation transmittance is a transmittance for light in a wavelength range of 350 to 2100 nm, and was used as an index for evaluating the heat insulating property of the heat insulating material for agricultural and horticultural facilities with respect to sunlight in the present invention. Further, the visible light transmittance is 380-7.
It is a transmittance for light in a wavelength region of 80 nm, and was used as an index for evaluating brightness to human eyes.
【００１３】[0013]
【発明の実施の形態】本発明の農園芸施設用断熱資材
は、農園芸用ハウスの屋根や外壁材等として使用される
フィルム状やボード状（板状）であって、微粒子状の断
熱フィラーを分散させた樹脂基材からなる断熱層を備え
ている。特に、断熱フィラーとして、近赤外光を効率良
く遮蔽し、優れた断熱性を付与することができる六ホウ
化ランタン（ＬａＢ６）又はアンチモン添加酸化錫（Ｓ
ｎＯ２＋Ｓｂ２Ｏ５：以下、ＡＴＯとも略記する）のう
ちの何れか１種を用いるか又は２種を併用する。BEST MODE FOR CARRYING OUT THE INVENTION The heat insulating material for agricultural and horticultural facilities of the present invention is in the form of a film or board (plate) used as a roof or an outer wall material of an agricultural and horticultural house, and is a fine-particle heat insulating filler. A heat insulating layer made of a resin base material in which is dispersed. In particular, as an insulating filler, lanthanum hexaboride (LaB 6 ) or antimony-added tin oxide (S) that can efficiently shield near-infrared light and impart excellent heat insulating properties
nO 2 + Sb 2 O 5 : hereinafter also abbreviated as ATO), or two of them are used in combination.
【００１４】農園芸施設用断熱資材においては、断熱の
対象は太陽光線の熱エネルギーである。地表に到達する
太陽光線は一般に約２９０〜２１００ｎｍの波長域であ
るといわれ、このうち約３８０〜７８０ｎｍの可視光波
長領域の光は施設内の明るさを維持し、植物の育成に必
要な光である。従って、太陽光線の断熱においては、約
７８０〜２１００ｎｍの近赤外光を選択的に効率良く遮
蔽又は吸収することにより、断熱性に寄与する材料を選
ぶことが好ましい。In the heat insulating material for agricultural and horticultural facilities, the object of heat insulation is thermal energy of sunlight. The sunlight reaching the surface of the earth is generally said to be in the wavelength range of about 290 to 2100 nm, of which the light in the visible wavelength range of about 380 to 780 nm maintains the brightness in the facility and is necessary for growing plants. It is. Therefore, in heat insulation of sunlight, it is preferable to select a material that contributes to heat insulation by selectively blocking or absorbing near-infrared light of about 780 to 2100 nm efficiently.
【００１５】また、紫外線領域の光については、栽培す
る植物によって又は受粉に用いる昆虫の種類等によって
最適な条件があるが、一般的に２９０〜３２０ｎｍの波
長域を制御することが要求される。即ち、この波長域の
適当量の紫外線を遮蔽することで、害虫や病気による害
を抑制する効果があるからである。従来使用されている
農業用フィルムは紫外線をある程度遮蔽するものが多
く、その条件で品種改良された植物は紫外線を多く必要
としない。ただし、大部分の紫外線を遮蔽してしまう
と、蜜蜂等による昆虫を用いた受粉が活発に行われなか
ったり、植物の育成に悪影響を与えたりすることがある
ので好ましくない。The light in the ultraviolet region has optimum conditions depending on the plant to be cultivated or the kind of insect used for pollination, etc. In general, it is required to control the wavelength range of 290 to 320 nm. That is, shielding an appropriate amount of ultraviolet light in this wavelength range has an effect of suppressing harm caused by pests and diseases. Many of the agricultural films that have been used so far block ultraviolet rays to some extent, and plants bred under these conditions do not need much ultraviolet rays. However, if most of the ultraviolet rays are shielded, pollination using insects by bees or the like may not be actively performed, or may adversely affect the growth of plants, which is not preferable.
【００１６】ＬａＢ６微粒子分散膜の透過スペクトル
は、図１に示すとおり、可視光域の光の透過が大きく、
波長５５０ｎｍ付近に透過のピークを持つ。この透過ピ
ークは人の目の感度が最も大きい波長と一致するため、
施設内の明るさを保持するのに有利である。更に、波長
１０００ｎｍ付近に大きな吸収があるため、近赤外光を
効率よく吸収又は遮蔽して、太陽光線の熱エネルギーを
効率よく断熱することができる。また、ＬａＢ６による
紫外線吸収は少なく、従って昆虫による受粉活動や植物
の生育に悪影響を与えることはない。尚、波長２９０〜
３２０ｎｍの紫外線の透過性は、樹脂基材中へのＬａＢ
６微粒子分の添加量を調整することにより制御すること
が可能である。As shown in FIG. 1, the transmission spectrum of the LaB 6 fine particle dispersion film is such that the transmission of light in the visible light range is large.
It has a transmission peak near a wavelength of 550 nm. Since this transmission peak coincides with the wavelength at which the human eye has the highest sensitivity,
This is advantageous for maintaining the brightness in the facility. Further, since there is a large absorption near the wavelength of 1000 nm, the near infrared light can be efficiently absorbed or shielded, and the heat energy of the sunlight can be efficiently insulated. In addition, LaB 6 absorbs only a small amount of ultraviolet light, and therefore does not adversely affect pollination by insects or plant growth. In addition, wavelength 290-
The transmittance of the ultraviolet light of 320 nm is as high as that of LaB in the resin base material.
It can be controlled by adjusting the addition amount of the six fine particles.
【００１７】更に紫外線領域の透過率について制御が必
要な場合には、紫外線遮蔽用の無機材料、有機材料、有
機無機複合材料、例えば、酸化セリウム、酸化チタン、
酸化ジルコニウム、酸化亜鉛、ベンゾフェノン系紫外線
吸収剤等を目的に合わせて添加すれば良い。また、上記
無機材料系紫外線吸収材は、紫外線を吸収したとき表面
に電子とホールが発生し、これが原因で樹脂基材を劣化
させる可能性があるため、その表面を皮膜処理してある
ものが望ましい。表面被膜処理としては、各種カップリ
ング剤、表面改質剤、ゾルゲルシリケート等が代表的で
あるが、樹脂の劣化を防止する効果が得られれば方法は
問わない。When it is necessary to control the transmittance in the ultraviolet region, an inorganic material, an organic material, and an organic-inorganic composite material for shielding ultraviolet light, for example, cerium oxide, titanium oxide,
Zirconium oxide, zinc oxide, a benzophenone-based ultraviolet absorber or the like may be added according to the purpose. In addition, the above-mentioned inorganic material-based UV absorbers have electrons and holes generated on the surface when ultraviolet rays are absorbed, and this may deteriorate the resin base material. desirable. As the surface coating treatment, various coupling agents, surface modifiers, sol-gel silicates and the like are typical, but any method can be used as long as the effect of preventing the deterioration of the resin can be obtained.
【００１８】このように、ＬａＢ６微粒子を断熱フィラ
ーとする本発明の断熱資材は、太陽光線の近赤外線領域
を効率よく吸収又は遮蔽することで断熱特性があり、同
時に波長５５０ｎｍ付近を中心に可視光領域の透過特性
が良好であるため、施設内の明るさを十分保持すること
ができる。しかも、好ましいことに波長３２０ｎｍ以下
の紫外線を透過する特徴があり、これによって受粉に寄
与する蜜蜂等が活発に活動でき、安定した収穫が期待で
きる。[0018] Thus, the heat insulating material of the present invention that the LaB 6 fine particles and heat insulation filler has thermal insulating properties by efficiently absorbing or shielding the near infrared region of sunlight, visible wavelength around 550nm simultaneously Since the light region has good transmission characteristics, the brightness in the facility can be sufficiently maintained. In addition, it is preferable that it transmits ultraviolet light having a wavelength of 320 nm or less, whereby bees and the like contributing to pollination can be actively activated, and stable harvest can be expected.
【００１９】また、ＡＴＯ微粒子分散膜の透過スペクト
ルを図２に示す。図２から分るように、波長３８０〜７
８０ｎｍの可視光域において大きく且つ平坦な透過プロ
ファイルを示し、可視光域の吸収が殆どないため施設内
を明るく保つことができるうえ、同時に波長８００ｎｍ
以上の近赤外領域に吸収を持つため高い断熱効果が得ら
れる。更に、波長２９０〜３２０ｎｍの紫外線領域にお
ける透過も得られるため、蜜蜂等の受粉にも悪影響が殆
どない。FIG. 2 shows the transmission spectrum of the ATO fine particle dispersed film. As can be seen from FIG.
It shows a large and flat transmission profile in the visible light region of 80 nm, and has almost no absorption in the visible light region, so that the inside of the facility can be kept bright, and at the same time, the wavelength is 800 nm.
Since it has absorption in the near infrared region described above, a high heat insulating effect can be obtained. Furthermore, since transmission in the ultraviolet region of a wavelength of 290 to 320 nm is obtained, pollination of bees and the like is hardly affected.
【００２０】尚、このＡＴＯにおいても、紫外線領域の
透過率を制御するために、紫外線遮蔽用の無機材料、有
機材料、有機無機複合材料を添加できること、及び無機
材料系紫外線吸収材については樹脂基材の劣化防止のた
め表面被膜処理が望ましいことは、上記ＬａＢ６の場合
と同様である。In this ATO, an inorganic material for blocking ultraviolet rays, an organic material, and an organic-inorganic composite material can be added in order to control the transmittance in the ultraviolet region. As in the case of LaB 6 , the desirability of the surface coating treatment to prevent deterioration of the material is desirable.
【００２１】このように、ＡＴＯ微粒子を断熱フィラー
とする本発明の断熱資材は、可視光領域で無色透明であ
るため施設内の明るさを十分保持することができ、近赤
外線領域の吸収又は遮蔽により高い断熱効果を有すると
共に、紫外線領域の透過も合わせ持っている。As described above, the heat-insulating material of the present invention using the ATO fine particles as the heat-insulating filler is colorless and transparent in the visible light region, so that the brightness in the facility can be sufficiently maintained, and the absorption or shielding in the near-infrared region is achieved. In addition to having a higher heat insulating effect, it also has transmission in the ultraviolet region.
【００２２】また、断熱フィラーとしてＬａＢ６とＡＴ
Ｏとを併用することも可能であり、このとき更に有効な
断熱特性を有する断熱資材が得られる。即ち、図１及び
図２に示したとおり、ＬａＢ６は波長１０００ｎｍ付近
に大きな吸収を持ち、一方ＡＴＯは８００ｎｍ以上の波
長で徐々に吸収が増加する。従って、両方の微粒子を樹
脂基材中に分散させることによって、いずれか片方のみ
を用いる場合に比べて近赤外域の吸収又は遮蔽が一層大
きく且つ効率的になり、更に高い断熱特性を得ることが
できる。Further, LaB 6 and AT are used as heat insulating fillers.
It is also possible to use O in combination, and at this time, a heat insulating material having more effective heat insulating properties can be obtained. That is, as shown in FIGS. 1 and 2, LaB 6 has a large absorption in the vicinity of a wavelength of 1000 nm, whereas ATO increases gradually absorbed at wavelengths above 800 nm. Therefore, by dispersing both fine particles in the resin base material, absorption or shielding in the near infrared region becomes larger and more efficient than in the case where only one of them is used, and higher heat insulating properties can be obtained. it can.
【００２３】よって、ＬａＢ６及び／又はＡＴＯ微粒子
を断熱フィラーとする本発明の農園芸施設用断熱資材
は、望ましい明るさを保持するための可視光域の透過
性、高い断熱効果を与える近赤外域の吸収性、並びに紫
外域の透過性の３特性を同時に合わせ持ち、ハウス等の
農園芸施設の屋根や外壁材等として極めて有用である。
しかも、これら断熱フィラーは無機材料であるため、有
機系材料と比較して高い耐侯性が得られ、通常屋外で使
用される農園芸施設用断熱資材として特に優れている。Therefore, the heat-insulating material for agricultural and horticultural facilities of the present invention using LaB 6 and / or ATO fine particles as the heat-insulating filler has a near-infrared color that transmits visible light to maintain a desired brightness and provides a high heat-insulating effect. It has simultaneously the three properties of the absorbency in the outer region and the transmittance in the ultraviolet region, and is extremely useful as a roof or outer wall material for agricultural and horticultural facilities such as a house.
In addition, since these heat insulating fillers are inorganic materials, they have higher weather resistance than organic materials, and are particularly excellent as heat insulating materials for agricultural and horticultural facilities used outdoors.
【００２４】かかる本発明の農園芸施設用断熱資材で
は、光学的に可視光域の透過性と近赤外域の吸収性との
バランスが良いことが重要である。即ち、可視光透過率
は３０〜９０％であることが好ましく、６０〜９０％で
あることが更に好ましい。同時に、日射透過率は１０〜
８０％であることが好ましく、１０〜７０％であること
が更に好ましい。また、紫外線領域の光透過率について
は、波長３２０ｎｍの光透過率が５〜８０％でることが
好ましく、波長２９０ｎｍの光透過率が０〜７０％であ
ることが好ましい。In the heat insulating material for agricultural and horticultural facilities of the present invention, it is important that a good balance between the optical transmittance in the visible light region and the absorption in the near infrared region is obtained. That is, the visible light transmittance is preferably from 30 to 90%, more preferably from 60 to 90%. At the same time, the solar transmittance is 10
It is preferably 80%, more preferably 10 to 70%. Regarding the light transmittance in the ultraviolet region, the light transmittance at a wavelength of 320 nm is preferably from 5 to 80%, and the light transmittance at a wavelength of 290 nm is preferably from 0 to 70%.
【００２５】上記した微粒子状の断熱フィラーの粒子径
（凝集粒子も含む）は、散乱効果を利用するか否かによ
って適宜選択することができる。例えば、断熱層の樹脂
基材中に分散させた断熱フィラーの粒子径が２００ｎｍ
以下、特に１００ｎｍ以下の場合は、太陽光線の散乱が
極めて小さくなり、太陽光線は植物や地面に直接到達す
るようになる。更に、可視光領域の光も殆ど散乱されな
いため、ハウス等の施設内の状況を外部から観察するこ
とが容易であり、施設内から外部状況を確認することも
できる。The particle diameter (including agglomerated particles) of the above-mentioned finely divided heat-insulating filler can be appropriately selected depending on whether or not the scattering effect is used. For example, the particle diameter of the heat insulating filler dispersed in the resin base material of the heat insulating layer is 200 nm.
In the case where the thickness is smaller than 100 nm, in particular, the scattering of sunlight becomes extremely small, and the sunlight directly reaches plants and the ground. Furthermore, since the light in the visible light region is hardly scattered, it is easy to observe the situation inside the facility such as a house from the outside, and the outside situation can be confirmed from inside the facility.
【００２６】一方、断熱層中に分散された微粒子の粒子
径が２００ｎｍ以上のであると、太陽光線の散乱が大き
く、施設内の植物及び地面に到達する光は均一になり、
ハウスの骨組み等の影が植物に与える影響が少なくな
る。しかし、同時に可視光領域の光も散乱されるため、
施設内を必要な明るさに保持できても、施設内の状況を
外部から観察することは難しくなる。On the other hand, when the particle diameter of the fine particles dispersed in the heat insulating layer is 200 nm or more, the scattering of sunlight is large, and the light reaching the plants and the ground in the facility becomes uniform,
The influence of the shadow of the skeleton of the house on the plants is reduced. However, since light in the visible light region is also scattered at the same time,
Even if the inside of the facility can be maintained at the required brightness, it is difficult to observe the situation inside the facility from the outside.
【００２７】ＬａＢ６及びＡＴＯの粒子径を制御する方
法は各種あるが、粒子径を小さくする場合には、ボール
ミル、サンドミル、超音波処理、衝突粉砕、ｐＨ制御等
の方法があり、これらの方法を湿式法又は乾式法等用途
に合わせて選択することできる。特に、粒子径２００ｎ
ｍ以下の微粒子の分散を行う場合には、各種のカップリ
ング剤、分散剤、界面活性剤を使用すると安定した状態
で分散させることができ、処理後の分散粒子も安定に保
持できる。The method of controlling the particle size of LaB 6 and ATO is various, but in the case of small particle size, a ball mill, sand mill, ultrasonic treatment, collision pulverization, there is a method of pH control, etc., these methods Can be selected according to the application such as a wet method or a dry method. In particular, a particle diameter of 200 n
When fine particles having a particle size of m or less are used, various coupling agents, dispersants, and surfactants can be used to stably disperse the particles, and the dispersed particles after the treatment can be stably maintained.
【００２８】上記ＬａＢ６及び／又はＡＴＯの微粒子を
分散させた樹脂基材の断熱層を含む本発明の農園芸施設
用断熱資材は、従来から農業用ハウス等に屋根や外壁材
として使用されている態様、即ちフィルム状又はボード
状（板状）である。一般的には上記断熱層のみからなる
単一なフィルム状又はボード状であるが、別途作製され
た樹脂やガラス等からなるフィルム状又はボード状の母
材表面上又は２枚の母材間に、少なくとも１層の上記断
熱層をラミネートした積層構造のものであってもよい。The heat-insulating material for agricultural and horticultural facilities of the present invention including the resin-based heat-insulating layer in which the LaB 6 and / or ATO fine particles are dispersed has been conventionally used as a roof or an outer wall material in an agricultural house or the like. In other words, it is in the form of a film or a board (plate). In general, it is a single film or board consisting of only the heat insulating layer, but on the surface of a film or board made of a resin or glass prepared separately or between two base materials. It may have a laminated structure in which at least one heat insulating layer is laminated.
【００２９】このような各種の形態を有する農園芸施設
用断熱資材において、その断熱層の形成は、断熱フィラ
ーであるＬａＢ６及び／又はＡＴＯ微粒子を樹脂に練り
込み、これを成形することによって行うことができる。
樹脂に練り込む場合、必要に応じて上記方法で微粒子の
粒子径を制御することが可能である。また、ＬａＢ６及
びＡＴＯの微粒子は熱的にも安定であるため、樹脂の融
点付近の温度（２００〜３００℃前後）で混練すること
が可能である。In the heat insulating material for agricultural and horticultural facilities having such various forms, the heat insulating layer is formed by kneading LaB 6 and / or ATO fine particles as a heat insulating filler into a resin and molding the resin. be able to.
When kneading into a resin, the particle size of the fine particles can be controlled by the above method as necessary. Further, since LaB 6 and ATO fine particles are thermally stable, they can be kneaded at a temperature near the melting point of the resin (about 200 to 300 ° C.).
【００３０】ＬａＢ６及び／又はＡＴＯ微粒子を混練し
た樹脂は、ペレット化した後、例えば、押し出し成形
法、インフレーション成形法、溶液流延法等により、フ
ィルム状又はボード状に成形する。尚、このときのフィ
ルム又はボードの厚さは、使用目的に応じて適宜設定す
ることができるが、一般的にフィルムの場合は１０〜１
０００μｍ、好ましくは２０〜５００μｍの範囲、ボー
ドの場合には２〜１５ｍｍの範囲とすることが望まし
い。また、樹脂中に混練するＬａＢ６及び／又はＡＴＯ
微粒子の量は、混練及び成形時の操作性等を考慮する
と、一般的に樹脂に対して５０重量％以下が好ましい。After kneading the LaB 6 and / or ATO fine particles, the resin is pelletized and then formed into a film or board by, for example, an extrusion method, an inflation method, a solution casting method, or the like. Incidentally, the thickness of the film or board at this time can be appropriately set according to the purpose of use.
000 μm, preferably 20 to 500 μm, and in the case of a board, 2 to 15 mm. LaB 6 and / or ATO kneaded in the resin
In consideration of the operability during kneading and molding, the amount of the fine particles is generally preferably 50% by weight or less based on the resin.
【００３１】断熱層中における断熱フィラーの含有量
は、断熱層の厚さや、必要に応じてラミネートする母材
の厚さ、目的とする光学特性及び断熱特性に応じて変え
ることができる。例えば、ＬａＢ６は単位重量における
断熱効率が高いため、断熱層１ｍ２当たりの含有量が
０.０１ｇ以上で有効な断熱効果が得られる。また、１
ｇ／ｍ２では約９０％の太陽光線の熱エネルギーを吸収
又は遮蔽することが可能であり、夏場の断熱には十分な
効果が得られ、冬場の保温効果を考慮するとこれ以上の
添加は好ましくない。よって、ＬａＢ６の含有量は０.
０１〜１ｇ／ｍ２の範囲とすることが好ましい。The content of the heat-insulating filler in the heat-insulating layer can be changed according to the thickness of the heat-insulating layer, the thickness of the base material to be laminated as required, the desired optical properties and the heat-insulating properties. For example, since LaB 6 has a high heat insulating efficiency per unit weight, an effective heat insulating effect can be obtained when the content per 1 m 2 of the heat insulating layer is 0.01 g or more. Also, 1
At g / m 2 , it is possible to absorb or block about 90% of the heat energy of the solar rays, and a sufficient effect is obtained for heat insulation in summer, and further addition is preferable in consideration of the heat retaining effect in winter. Absent. Thus, the content of LaB 6 is 0.
It is preferable to be in the range of 01 to 1 g / m 2 .
【００３２】また、断熱フィラーがＡＴＯの場合には、
断熱層の１ｍ２当たり約３ｇの含有量で、３０％程度の
太陽光線の熱エネルギーを吸収又は遮蔽することが可能
である。一般的には、１.０ｇ／ｍ２未満では断熱効果
が十分ではなく、また５０ｇ／ｍ２を超えるとコストが
高くなり、更に断熱用資材への加工が困難となるため好
ましくない。よって、ＡＴＯの含有量は１.０〜５０ｇ
／ｍ２の範囲であることが好ましい。When the heat-insulating filler is ATO,
In content of about 3g per 1 m 2 of the heat insulating layer, it is possible to absorb or shield the heat energy of sunlight 30%. In general, if it is less than 1.0 g / m 2 , the heat insulating effect is not sufficient, and if it exceeds 50 g / m 2 , the cost increases, and furthermore, it becomes difficult to process into a heat insulating material, which is not preferable. Therefore, the content of ATO is 1.0 to 50 g.
/ M 2 .
【００３３】断熱層のマトリックスとなる樹脂は、特に
限定されるものではなく、用途に合わせて選択可能であ
る。例えば、従来からハウス等に使用されているポリエ
チレン樹脂、ポリエステル樹脂、軟質塩化ビニル樹脂の
ほか、低コストで、透明性が高く、汎用性の広い樹脂と
して、ポリエチレンテレフタレイト（ＰＥＴ）樹脂、ア
クリル樹脂、ポリアミド樹脂、塩化ビニル樹脂、ポリカ
ーボネート樹脂、オレフィン樹脂、エポキシ樹脂、ポリ
イミド樹脂等が挙げられる。特にＰＥＴ樹脂は紫外線領
域の透過性に特徴があり、波長３２０ｎｍ付近は透過す
るが、波長２９０ｎｍ付近は殆ど透過しないので、紫外
線領域の透過率を制御するうえで好ましい樹脂材料であ
る。The resin used as the matrix of the heat insulating layer is not particularly limited, and can be selected according to the application. For example, in addition to polyethylene resin, polyester resin, and soft vinyl chloride resin conventionally used for houses, etc., polyethylene terephthalate (PET) resin, acrylic resin is a low-cost, highly transparent, and versatile resin. Resins, polyamide resins, vinyl chloride resins, polycarbonate resins, olefin resins, epoxy resins, polyimide resins, and the like. In particular, PET resin is characterized by its transmittance in the ultraviolet region, and transmits near a wavelength of 320 nm, but hardly transmits near a wavelength of 290 nm, and is a preferred resin material for controlling the transmittance in the ultraviolet region.
【００３４】また、耐侯性や紫外線透過性等を考慮する
と、フッ素系樹脂が有効である。ここでフッ素系樹脂と
は、分子構造中にフッ素を含有する樹脂であればよく、
例えば、４フッ化エチレン樹脂、３フッ化エチレン樹
脂、２フッ化エチレン樹脂、１フッ化エチレン樹脂等が
挙げられ、これらの混合物であっても構わない。Further, in consideration of weather resistance, ultraviolet transmittance and the like, a fluorine resin is effective. Here, the fluororesin may be a resin containing fluorine in the molecular structure,
For example, a tetrafluoroethylene resin, a trifluoride ethylene resin, a difluoride ethylene resin, a monofluoride ethylene resin, or the like may be mentioned, and a mixture thereof may be used.
【００３５】更に具体的には、ポリテトラフルオロエチ
レン（ＰＴＦＥ）、テトラフルオロエチレン−パーフル
オロアルキルビニルエーテル共重合体（ＰＦＡ）、テト
ラフルオロエチレン−ヘキサフルオロプロピレン共重合
体（ＦＥＰ）、テトラフルオロエチレン−ヘキサフルオ
ロプロピレン−パーフルオロアルキルビニルエーテル共
重合体（ＥＰＥ）、テトラフルオロエチレン−エチレン
共重合体（ＥＴＥＦ）、ポリクロロトリフルオロエチレ
ン（ＣＰＴＦＥ）、クロロトリフルオロエチレン―エチ
レン共重合体（ＥＣＴＦＥ）、ポリビニリデンフルオラ
イド（ＰＶＤＦ）、ポリビニルフルオライド（ＰＶＦ）
等が挙げられる。これらのフッ素系樹脂、及びその各種
変成品又は複合品等は各種市販されており、必要とする
特性に応じて選択使用することが可能である。More specifically, polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene- Hexafluoropropylene-perfluoroalkyl vinyl ether copolymer (EPE), tetrafluoroethylene-ethylene copolymer (ETEF), polychlorotrifluoroethylene (CPTFE), chlorotrifluoroethylene-ethylene copolymer (ECTFE), poly Vinylidene fluoride (PVDF), polyvinyl fluoride (PVF)
And the like. These fluorine-based resins and various modified products or composite products thereof are commercially available and can be selectively used according to the required characteristics.
【００３６】また、上述した積層構造の農園芸施設用断
熱資材の場合、例えばＬａＢ６及び／又はＡＴＯ微粒子
を含む断熱層を、既存の樹脂製のフィルムやボード又は
ガラス板等からなる母材の片方又は両方の表面上に、コ
ーティングして製造することができる。コーティング方
法は、母材表面に均一な塗膜が形成できればよく、例え
ばバーコート法、グラビヤコート法、スプレーコート
法、ディップコート法等を用いることができる。Further, in the case of agricultural and horticultural facilities for thermal insulation material of the above-described laminated structure, for example, a heat insulating layer containing the LaB 6 and / or ATO fine particles, made of existing resin film or made of board or a glass plate or the like of the base material It can be manufactured by coating on one or both surfaces. The coating method may be any as long as a uniform coating film can be formed on the surface of the base material. For example, a bar coating method, a gravure coating method, a spray coating method, a dip coating method, or the like can be used.
【００３７】上記コーティング法により断熱層を形成す
る場合、微粒子を保持する樹脂又はバインダーとして紫
外線硬化樹脂を用いることが好ましい。即ち、紫外線硬
化樹脂と適当な粒子径の断熱フィラーを混合して液状な
いしペースト状とし、母材表面にコーティングし、溶剤
を蒸発させた後、紫外線を照射して硬化させることが可
能である。更に、紫外線硬化樹脂としてハードコート性
の樹脂を使用すれば、表面耐摩耗強度の高い断熱層が得
られ、砂埃等が衝突しても傷の付きにくい表面特性を付
与することができる。このとき、ＳｉＯ２等の無機結合
剤や、ＳｉＯ２微粒子等を添加することにより、更に摩
耗強度を向上させることができる。When the heat insulating layer is formed by the above-mentioned coating method, it is preferable to use an ultraviolet curable resin as a resin or binder holding fine particles. That is, it is possible to mix an ultraviolet curable resin and a heat insulating filler having an appropriate particle diameter to form a liquid or paste, coat the surface of the base material, evaporate the solvent, and then irradiate ultraviolet rays to cure the resin. Further, when a hard coat resin is used as the ultraviolet curable resin, a heat insulating layer having a high surface wear resistance can be obtained, and surface characteristics that are hardly damaged even when dust or the like collides can be imparted. At this time, the wear strength can be further improved by adding an inorganic binder such as SiO 2 or fine particles of SiO 2 .
【００３８】また、上記のごとく断熱層をコーティング
する場合には、予め母材表面を処理して断熱層との密着
力を向上させることが好ましい。この表面処理により、
同時に母材表面の濡れ性が改善されてコーティング時の
弾きを防止し、均一なコーティングを得ることが容易と
なる。特にフッ素系樹脂からなる母材には表面処理を施
すことが望ましい。表面処理方法としては、コロナ処
理、スパッタ処理、プライマーコーティング処理等が良
く知られている。When the heat insulating layer is coated as described above, it is preferable that the surface of the base material is treated in advance to improve the adhesion to the heat insulating layer. With this surface treatment,
At the same time, the wettability of the surface of the base material is improved, so that repelling during coating is prevented, and it becomes easy to obtain a uniform coating. In particular, it is desirable to perform a surface treatment on a base material made of a fluororesin. As a surface treatment method, corona treatment, sputtering treatment, primer coating treatment and the like are well known.
【００３９】更に、上記の母材２枚の間に断熱層をラミ
ネートして農園芸施設用断熱資材を形成する場合には、
断熱フィラーの微粒子を保持する樹脂又はバインダーと
してラミネート用の樹脂、例えば塩化ビニルコポリマー
等を用いることもできる。更にまた、断熱フィラーの微
粒子を常温硬化性の樹脂と混合することで、既存の農園
芸用施設の屋根や外壁材の表面にコーティングして、後
から断熱特性を付与することも可能である。このよう
に、目的及び用途に応じて樹脂基材を選定することによ
り、断熱特性を母材に付与することが可能である。Further, when a heat insulating layer is laminated between the two base materials to form a heat insulating material for an agricultural and horticultural facility,
A resin for lamination, for example, a vinyl chloride copolymer or the like can also be used as a resin or a binder for retaining the fine particles of the heat insulating filler. Furthermore, by mixing the fine particles of the heat-insulating filler with a room-temperature-curable resin, it is possible to coat the surface of a roof or an outer wall material of an existing agricultural and horticultural facility, thereby imparting heat insulating properties later. As described above, by selecting the resin base material according to the purpose and application, it is possible to impart heat insulating properties to the base material.
【００４０】[0040]
【実施例】実施例１ ＬａＢ６微粒子（比表面積３０ｍ２／ｇ）２０重量部、
トルエン７５重量部、分散剤５重量部を混合し、平均分
散粒子径８０ｎｍの分散液Ａを得た。この分散液Ａから
真空乾燥機を用いて５０℃で溶剤成分を除去し、分散処
理したＬａＢ６の粉末Ａとした。尚、平均分散粒子径
は、動的光散乱法を用いた測定装置（大塚電子株式会社
(製)：ＥＬＳ−８００）により測定し、その平均値とし
た。【Example】Example 1 LaB6Fine particles (specific surface area 30m2/ G) 20 parts by weight,
75 parts by weight of toluene and 5 parts by weight of a dispersant are mixed, and the
A dispersion A having a dispersed particle diameter of 80 nm was obtained. From this dispersion A
The solvent component is removed at 50 ° C. using a vacuum drier,
LaB6Of powder A. Incidentally, the average dispersed particle diameter
Is a measuring device using the dynamic light scattering method (Otsuka Electronics Co., Ltd.)
(Manufactured by: ELS-800) and the average value
Was.
【００４１】このＬａＢ６の粉末Ａ０.０１ｋｇと、Ｅ
ＴＦＥ（テトラフルオロエチレン―エチレン共重合体）
樹脂８.７ｋｇを、Ｖブレンダーにて乾式混合した。そ
の後、ＥＴＦＥ樹脂の溶融温度付近である３２０℃で十
分に密閉混合し、その混合物を３２０℃にて押出成形し
て、厚さ約５０μｍのフィルムを形成した。このフィル
ム中のＬａＢ６微粒子の含有量は０.１３ｇ／ｍ２に相
当する。The LaB 6 powder A0.01 kg and E
TFE (tetrafluoroethylene-ethylene copolymer)
8.7 kg of the resin was dry mixed in a V blender. Thereafter, the mixture was sufficiently hermetically mixed at 320 ° C., which is around the melting temperature of the ETFE resin, and the mixture was extruded at 320 ° C. to form a film having a thickness of about 50 μm. The content of LaB 6 fine particles in the film is equivalent to 0.13 g / m 2.
【００４２】得られたフィルム状の断熱資材について、
ＪＩＳ Ａ ５７５９（１９９８）（光源：Ａ光）に準
拠して光学測定を行い、可視光透過率、日射透過率、及
び紫外線領域での光透過率を求めた。ただし、測定用試
料はガラスに貼付せず、フィルムそのものを使用した。
また、透明性を評価するために、ＪＩＳ Ｋ ７１０５
に基づきヘーズ値を測定した。ヘーズ値が低いほど、透
明度が高い。With respect to the obtained film-like heat insulating material,
Optical measurement was performed in accordance with JIS A 5759 (1998) (light source: A light) to determine the visible light transmittance, the solar radiation transmittance, and the light transmittance in the ultraviolet region. However, the measurement sample was not attached to glass, and the film itself was used.
Also, in order to evaluate transparency, JIS K 7105
The haze value was measured based on. The lower the haze value, the higher the transparency.
【００４３】その結果、上記フィルム状断熱資材の可視
光透過率は７０％及び日射透過率は５０％であり、可視
光領域の光を十分透過すると同時に、太陽光線の直接入
射光を５０％遮蔽することができ、高い断熱効果を有す
ることが分かった。また、紫外線領域の透過率は、波長
２９０ｎｍで１８％及び３２０ｎｍで２６％であり、蜜
蜂等が十分活発に受粉を行える範囲であった。更に、ヘ
ーズ値は４.２％で、内部の状況を外部からも十分確認
できる高い透明性を有している。As a result, the film-like heat insulating material has a visible light transmittance of 70% and a solar light transmittance of 50%, and sufficiently transmits light in the visible light region and simultaneously shields 50% of direct incident light of sunlight. And has a high heat insulating effect. The transmittance in the ultraviolet region was 18% at a wavelength of 290 nm and 26% at 320 nm, which was within a range in which bees and the like could pollinate sufficiently. Further, the haze value is 4.2%, and the film has high transparency so that the inside condition can be sufficiently confirmed from outside.
【００４４】比較例１ 上記実施例１において、断熱フィラーのＬａＢ６微粒子
を添加せず、ＥＴＦＥ樹脂を押出成形して、厚さ約５０
μｍのフィルムを形成した。得られたフィルムの可視光
透過率は８９％で可視光領域の光を十部透過している
が、日射透過率も８９％であり、太陽光線の直接入射光
を約１１％しか遮蔽できず、断熱効果が低いことが分か
る。尚、紫外線領域の透過率は波長２９０ｎｍで８２％
及び３２０ｎｍで８８％であり、またヘーズ値は４.０
％であった。[0044]Comparative Example 1 In the first embodiment, the heat-insulating filler LaB6Fine particles
ETFE resin is extruded without adding
A μm film was formed. Visible light of the obtained film
The transmittance is 89%, and ten parts of light in the visible light region are transmitted.
However, the solar radiation transmittance is 89%, and the direct incident light of sunlight
Only about 11% can be shielded, indicating that the insulation effect is low.
You. The transmittance in the ultraviolet region is 82% at a wavelength of 290 nm.
And 320% and 88%, and the haze value was 4.0%.
%Met.
【００４５】実施例２ 上記実施例１におけるＬａＢ６の粉末Ａ０.００５ｋｇ
と、ＥＴＦＥ樹脂８.７ｋｇとを、Ｖブレンダ−にて乾
式混合した。その後、実施例１と同様に、ＥＴＦＥ樹脂
の溶融温度付近である３２０℃で十分に密閉混合を行
い、その混合物を３２０℃にて押出成形して、厚さ約５
０μｍのフィルムを形成した。このフィルム中のＬａＢ
６微粒子の含有量は０.０５ｇ／ｍ２に相当する。[0045]Example 2 LaB in Example 1 above60.005 kg of powder A
And 8.7 kg of ETFE resin are dried with a V blender.
Formula mixed. Then, as in Example 1, the ETFE resin
Mix thoroughly at 320 ° C, which is around the melting temperature of
The mixture was extruded at 320 ° C to a thickness of about 5
A 0 μm film was formed. LaB in this film
6The content of fine particles is 0.05 g / m2Is equivalent to
【００４６】得られたフィルム状の断熱資材を実施例１
と同様に評価したところ、可視光透過率は８０％及び日
射透過率は６５％であり、可視光領域の光を十分透過す
ると同時に、太陽光線の直接入射光を約３５％遮蔽する
ことができ、高い断熱効果を有することが分かった。紫
外線領域の透過率は、波長２９０ｎｍで３４％及び３２
０ｎｍで４３％であり、蜜蜂等が十分活発に受粉を行え
る範囲であった。更に、ヘーズ値は４.１％であり、透
明性が高く、内部の状況が外部からも十分確認すること
ができる。The obtained film-like heat insulating material was used in Example 1.
When evaluated in the same manner as above, the visible light transmittance was 80% and the solar radiation transmittance was 65%, and it was possible to sufficiently transmit light in the visible light region and at the same time to shield about 35% of direct incident light of sunlight. , Has a high heat insulating effect. The transmittance in the ultraviolet region is 34% and 32 at a wavelength of 290 nm.
At 0 nm, it was 43%, which was within a range where bees and the like could pollinate sufficiently. Further, the haze value is 4.1%, the transparency is high, and the inside condition can be sufficiently confirmed from outside.
【００４７】実施例３ 上記実施例２において、ＥＴＦＥ樹脂の代りにＰＥＴ
（ポリエチレンテレフタレイト）樹脂を用い、加熱温度
をＰＥＴ樹脂の十分軟化する温度（約３００℃）とした
以外は、実施例２と同様の方法でフィルムを作製した。
このフィルム中のＬａＢ６微粒子の含有量は実施例２と
同じく０.０５ｇ／ｍ２に相当する。[0047]Example 3 In Example 2 above, PET was used instead of ETFE resin.
Heating temperature using (polyethylene terephthalate) resin
To the temperature (about 300 ° C.) at which the PET resin is sufficiently softened
Except for the above, a film was produced in the same manner as in Example 2.
LaB in this film6The content of the fine particles was the same as in Example 2.
0.05g / m2Is equivalent to
【００４８】得られたフィルム状の断熱資材を実施例１
と同様に評価したところ、可視光透過率は７９％及び日
射透過率は６５％であり、可視光領域の光を十分透過す
ると同時に、太陽光線の直接入射光を約３５％遮蔽して
おり、高い断熱効果を有することが分かる。また、紫外
線領域の透過率は、波長２９０ｎｍで０％及び３２０ｎ
ｍで３５％であり、２９０ｎｍでの透過率が０％である
のは樹脂基材であるＰＥＴ樹脂の影響である。更に、ヘ
ーズ値は２.５％であり、透明性が非常に高いことが分
かる。The obtained heat insulating material in the form of a film was used in Example 1.
When evaluated in the same way as above, the visible light transmittance was 79% and the solar radiation transmittance was 65%. At the same time, the light in the visible light region was sufficiently transmitted, and at the same time, the direct incident light of the sunlight was blocked by about 35%. It turns out that it has a high heat insulating effect. The transmittance in the ultraviolet region is 0% and 320 n at a wavelength of 290 nm.
It is 35% in m and the transmittance at 290 nm is 0% due to the effect of the PET resin as the resin base material. Further, the haze value is 2.5%, which indicates that the transparency is very high.
【００４９】比較例２ 上記実施例３において、断熱フィラーのＬａＢ６微粒子
を添加せず、ＰＥＴ樹脂を押出成形して、厚さ約５０μ
ｍのフィルムを形成した。得られたフィルムの可視光透
過率は８８％で可視光領域の光を十分透過しているが、
日射透過率も８８％であり、太陽光線の直接入射光を約
１２％しか遮蔽できず、断熱効果が低いことが分かる。
また、紫外線領域の透過率は、波長２９０ｎｍで０％及
び３２０ｎｍで５２％であり、ヘーズ値は１.０％であ
った。[0049]Comparative Example 2 In the above Example 3, LaB of the heat insulating filler was used.6Fine particles
Extrusion molding of PET resin without adding
m of film was formed. Visible light transmission of the obtained film
Although the excess rate is 88%, the light in the visible light region is sufficiently transmitted,
The solar radiation transmittance is also 88%, and the
It can be seen that only 12% can be shielded and the heat insulation effect is low.
The transmittance in the ultraviolet region is 0% at a wavelength of 290 nm.
At 320 nm and a haze value of 1.0%.
Was.
【００５０】実施例４ ＡＴＯ微粒子（比表面積５０ｍ２／ｇ）２０重量部、ト
ルエン７５重量部、分散剤５重量部を混合し、平均分散
粒子径７５ｎｍの分散液Ｂを得た。この分散液Ｂから真
空乾燥機を用いて５０℃で溶剤成分を除去し、分散処理
したＡＴＯの粉末Ｂとした。[0050]Example 4 ATO fine particles (specific surface area 50m2/ G) 20 parts by weight,
Mix 75 parts by weight of Ruene and 5 parts by weight of dispersant
A dispersion B having a particle diameter of 75 nm was obtained. From this dispersion B
The solvent component is removed at 50 ° C using an air dryer, and dispersion treatment is performed.
ATO powder B was used.
【００５１】このＡＴＯの粉末Ｂ０.４ｋｇと、ＥＴＦ
Ｅ樹脂８.６５ｋｇをＶブレンダ−にて乾式混合した
後、ＥＴＦＥ樹脂の溶融温度である３２０℃で十分に密
閉混合を行い、この混合物を３２０℃にて押出成形し
て、厚さ約５０μｍのフィルムを形成した。このフィル
ム中のＡＴＯ微粒子の含有量は４.５ｇ／ｍ２に相当す
る。0.4 kg of this ATO powder B and ETF
After 8.65 kg of the E resin was dry-blended with a V blender, the mixture was sufficiently closed and mixed at 320 ° C., which is the melting temperature of the ETFE resin, and this mixture was extruded at 320 ° C. to a thickness of about 50 μm. A film was formed. The content of ATO fine particles in this film is equivalent to 4.5 g / m 2 .
【００５２】得られたフィルム状の断熱資材を実施例１
と同様に評価したところ、可視光透過率は７９％及び日
射透過率は６３％であり、可視光領域の光を十部透過し
ていると同時に、太陽光線の直接入射光を約３７％遮蔽
することができ、高い断熱効果を有することが分かる。
また、紫外線領域の透過率は、波長２９０ｎｍで３.４
％及び３２０ｎｍで３０.０％であり、蜜蜂等の受粉が
十分活発に行えることが分かる。更に、ヘーズ値は４.
５％であり、内部の状況が外部からも十分確認できる透
明性を有している。The obtained heat insulating material in the form of a film was used in Example 1.
When evaluated in the same manner as above, the visible light transmittance was 79% and the solar radiation transmittance was 63%. Ten percent of the light in the visible light range was transmitted, and at the same time, about 37% of the direct incident light of sunlight was blocked. It can be seen that it has a high heat insulating effect.
The transmittance in the ultraviolet region is 3.4 at a wavelength of 290 nm.
% And 30.0% at 320 nm, indicating that pollination of bees and the like can be carried out sufficiently actively. Furthermore, the haze value is 4.
5%, which is transparent enough to allow internal conditions to be checked externally.
【００５３】実施例５ 上記実施例４のＡＴＯの粉末Ｂ０.２ｋｇと、ＥＴＦＥ
樹脂８.６５ｋｇをＶブレンダーにて乾式混合した。そ
の後、ＥＦＴＥ樹脂の溶融温度である３２０℃付近で十
分に密閉混合を行い、その混合物を３２０℃にて押出成
形して、厚さ約５０μｍにフィルムに形成した。このフ
ィルムのＡＴＯ微粒子の含有量は２.０ｇ／ｍ２に相当
する。[0053]Example 5 0.2 kg of the ATO powder B of Example 4 and ETFE
8.65 kg of the resin was dry-mixed in a V blender. So
After that, when the temperature is around 320 ° C., which is the melting temperature of the EFTE resin,
And then extrude the mixture at 320 ° C.
It was formed into a film having a thickness of about 50 μm. This file
The content of ATO fine particles in the film is 2.0 g / m2Equivalent to
I do.
【００５４】得られたフィルム状の断熱資材を実施例１
と同様に評価したところ、可視光透過率は８４％及び日
射透過率は７３％であり、可視光領域の光を十分透過し
ていると同時に、太陽光線の直接入射光を約２７％遮蔽
しており、高い断熱効果を有することが分かる。また、
紫外線領域の透過率は、波長２９０ｎｍで１５％及び３
２０ｎｍで４９％であり、蜜蜂等が十分活発に受粉を行
うことが可能な範囲である。更に、ヘーズ値は４.２％
であり、透明性が高く、内部の状況が外部からも十分確
認することができる。The obtained film-like heat insulating material was used in Example 1.
When evaluated in the same manner as above, the visible light transmittance was 84% and the solar radiation transmittance was 73%. At the same time, the light in the visible light range was sufficiently transmitted, and at the same time, the direct incident light of sunlight was blocked by about 27%. It can be seen that it has a high heat insulating effect. Also,
The transmittance in the ultraviolet region is 15% at a wavelength of 290 nm and 3%.
At 20 nm, it is 49%, which is a range in which bees and the like can pollinate sufficiently. Furthermore, the haze value is 4.2%
It is highly transparent, and the inside situation can be sufficiently confirmed from outside.
【００５５】実施例６ 実施例１におけるＬａＢ６微粒子の分散液Ａ１０重量部
を、ハードコート用紫外線硬化樹脂（固形分１００％）
１００重量部と混合した。得られた液を予め表面コロナ
処理したＰＥＴ樹脂フィルム（厚さ５０μｍ）上にバー
コーターを用いて成膜し、これを１００℃で３０秒乾燥
して溶剤を蒸発させた後、高圧水銀ランプで硬化させて
ＰＥＴ樹脂フィルム上に断熱層を形成した。[0055]Example 6 LaB in Example 1610 parts by weight of dispersion liquid A of fine particles
, UV curable resin for hard coat (solid content 100%)
100 parts by weight. Apply the obtained liquid to the surface corona in advance.
Bar on the treated PET resin film (50μm thickness)
Film formed using a coater and dried at 100 ° C for 30 seconds
After evaporating the solvent, cure with a high pressure mercury lamp
A heat insulating layer was formed on the PET resin film.
【００５６】得られたフィルム状の断熱資材は、ＬａＢ
６微粒子がハードコート用紫外線硬化樹脂中に分散した
断熱層と、この断熱層がラミネートされた母材であるＰ
ＥＴ樹脂フィルムとで構成された２層積層構造を有して
いる。また、このフィルムの断熱層は、厚さが約２μｍ
であり、ＬａＢ６微粒子の含有量は０.０８ｇ／ｍ２に
相当する。The obtained film-like heat insulating material was LaB
A heat insulating layer in which 6 fine particles are dispersed in an ultraviolet-curing resin for hard coating, and P which is a base material on which the heat insulating layer is laminated
It has a two-layer laminated structure composed of an ET resin film. The heat insulating layer of this film has a thickness of about 2 μm.
And the content of LaB 6 fine particles is equal to 0.08 g / m 2 .
【００５７】得られたフィルム状の断熱資材を実施例１
と同様に評価したところ、可視光透過率は７５％及び日
射透過率は５７％であり、可視光領域の光を十分透過し
ていると同時に、太陽光線の直接入射光を約４３％遮蔽
しており、高い断熱効果を有することが分かる。また、
紫外線領域の透過率は、波長２９０ｎｍで０％及び３２
０ｎｍで２２％であり、２９０ｎｍでの透過率が０％で
あるのはＰＥＴ樹脂基材の影響である。更に、ヘーズ値
は１.０％であり、透明性が極めて高く、内部の状況が
外部からもはっきり確認することができる。The obtained film-like heat insulating material was used in Example 1.
When evaluated in the same manner as above, the visible light transmittance was 75% and the solar radiation transmittance was 57%, and the light in the visible light region was sufficiently transmitted, and at the same time, the direct incident light of sunlight was blocked by about 43%. It can be seen that it has a high heat insulating effect. Also,
The transmittance in the ultraviolet region is 0% and 32% at a wavelength of 290 nm.
22% at 0 nm and 0% at 290 nm are due to the PET resin substrate. Further, the haze value is 1.0%, the transparency is extremely high, and the internal condition can be clearly confirmed from the outside.
【００５８】[0058]
【発明の効果】本発明によれば、耐侯性に優れていて、
内部での作業や植物の育成に必要な可視光域の光を十分
透過すると同時に、近赤外光を効率よく吸収又は遮断し
て、高い断熱性を備えた、フィルム状又はボード状の農
園芸施設用断熱資材を提供することができる。しかも、
本発明の農園芸施設用断熱資材は、紫外線を適度に透過
し又はその透過を制御することができるので、病害虫の
発生を抑制すると共に、受粉に必要な蜜蜂等の昆虫を十
分活発に活動させることができる。According to the present invention, weather resistance is excellent,
A film or board-shaped agricultural or horticultural material with high heat insulation that absorbs or blocks near-infrared light efficiently while transmitting light in the visible light range necessary for internal work and growing plants. Facility insulation material can be provided. Moreover,
Since the heat insulating material for agricultural and horticultural facilities of the present invention can appropriately transmit or control the transmission of ultraviolet light, it suppresses the occurrence of pests and activates insects such as bees necessary for pollination sufficiently actively. be able to.
【図１】ＬａＢ６微粒子分散膜の透過スペクトルであ
る。FIG. 1 is a transmission spectrum of a LaB 6 fine particle dispersed film.
【図２】ＡＴＯ微粒子分散膜の透過スペクトルである。FIG. 2 is a transmission spectrum of an ATO fine particle dispersed film.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｊ 5/18 ＣＥＺ Ｃ０８Ｊ 5/18 ＣＥＺ Ｃ０８Ｋ 3/38 Ｃ０８Ｋ 3/38 9/02 9/02 Ｃ０８Ｌ 101/00 Ｃ０８Ｌ 101/00 Ｆターム(参考） 2B024 DB01 EA01 2B029 EB02 EB03 EC02 EC09 EC13 EC14 EC18 4F071 AA01 AA26 AA46 AB18 AB27 AF30Y AF44 AH01 BC01 4F100 AA28A AA31A AK01A AK17A AK42A AT00B BA02 CA07A CA23A DE01A GB01 JJ02 JJ02A JL09 JN01A 4J002 AA001 BD121 CF061 DE096 DK006 FB076 GA01 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08J 5/18 CEZ C08J 5/18 CEZ C08K 3/38 C08K 3/38 9/02 9/02 C08L 101 / 00 C08L 101/00 F-term (reference) 2B024 DB01 EA01 2B029 EB02 EB03 EC02 EC09 EC13 EC14 EC18 4F071 AA01 AA26 AA46 AB18 AB27 AF30Y AF44 AH01 BC01 4F100 AA28A AA31A AK01A AK17A AK42A01A02A01A02A02A02A01A02A02A CF061 DE096 DK006 FB076 GA01
Claims (6)
基材からなる断熱層を備え、該断熱フィラーが六ホウ化
ランタン及びアンチモン添加酸化錫から選ばれた少なく
とも１種であることを特徴とする農園芸施設用断熱資
材。1. A heat-insulating layer comprising a resin base material in which fine-particle heat-insulating fillers are dispersed, wherein the heat-insulating filler is at least one selected from lanthanum hexaboride and antimony-added tin oxide. Insulation material for agricultural and horticultural facilities.
日射透過率が１０〜８０％であることを特徴とする、請
求項１に記載の農園芸施設用断熱資材。2. A visible light transmittance of 30 to 90%,
The thermal insulation material for agricultural and horticultural facilities according to claim 1, wherein the solar radiation transmittance is 10 to 80%.
透過率が５〜８０％及び波長２９０ｎｍの光透過率が０
〜７０％であることを特徴とする、請求項１又は２に記
載の農園芸施設用断熱資材。3. The light transmittance at a wavelength of 320 nm in the ultraviolet region is 5 to 80% and the light transmittance at a wavelength of 290 nm is 0.
The heat insulating material for agricultural and horticultural facilities according to claim 1 or 2, wherein the heat insulating material has a content of about 70%.
量が、六ホウ化ランタンでは０.０１〜１ｇ／ｍ２、ア
ンチモン添加酸化錫では１.０〜５０ｇ／ｍ２であるこ
とを特徴とする、請求項１〜３のいずれかに記載の農園
芸施設用断熱資材。Wherein the content of the heat insulating filler in the heat-insulating layer, characterized in that the lanthanum hexaboride 0.01 to 1 g / m 2, the antimony doped tin oxide is 1.0~50g / m 2 The heat insulating material for agricultural and horticultural facilities according to any one of claims 1 to 3.
はポリエチレンテレフタレイト樹脂であることを特徴と
する、請求項１〜４のいずれかに記載の農園芸施設用断
熱資材。5. The heat-insulating material for agricultural and horticultural facilities according to claim 1, wherein the resin base material of the heat-insulating layer is a fluororesin or a polyethylene terephthalate resin.
状又はボード状であるか、若しくは前記断熱層がフィル
ム状又はボード状の母材表面上又は２枚の母材間にラミ
ネートされていることを特徴とする、請求項１〜５のい
ずれかに記載の農園芸施設用断熱資材。6. A single film or board comprising only the heat-insulating layer, or the heat-insulating layer is laminated on the surface of a film- or board-like base material or between two base materials. The heat insulating material for agricultural and horticultural facilities according to any one of claims 1 to 5, characterized in that:
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001181860A JP3997728B2 (en) | 2001-06-15 | 2001-06-15 | Insulation material for agricultural and horticultural facilities |
| PCT/JP2002/008424 WO2004017717A1 (en) | 2001-06-15 | 2002-08-21 | Heat insulation material for agricultural and horticultural facility |
| IN327CH2005 IN220565B (en) | 2001-06-15 | 2002-08-21 | |
| CNB028294823A CN1327758C (en) | 2001-06-15 | 2002-08-21 | Heat insulation material for agriculture and horticultural facility |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001181860A JP3997728B2 (en) | 2001-06-15 | 2001-06-15 | Insulation material for agricultural and horticultural facilities |
| PCT/JP2002/008424 WO2004017717A1 (en) | 2001-06-15 | 2002-08-21 | Heat insulation material for agricultural and horticultural facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002369629A true JP2002369629A (en) | 2002-12-24 |
| JP3997728B2 JP3997728B2 (en) | 2007-10-24 |
Family
ID=32658466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001181860A Expired - Lifetime JP3997728B2 (en) | 2001-06-15 | 2001-06-15 | Insulation material for agricultural and horticultural facilities |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3997728B2 (en) |
| CN (1) | CN1327758C (en) |
| IN (1) | IN220565B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004036978A1 (en) * | 2002-10-24 | 2004-05-06 | Sumitomo Metal Mining Co., Ltd. | Heat-insulating material for agricultural or horticultural facility |
| US20040131845A1 (en) * | 2002-05-13 | 2004-07-08 | Kennichi Fujita | Heat ray shielding sheet material and liquid additive for use in producing the same |
| JP2007519804A (en) * | 2004-01-28 | 2007-07-19 | ゼネラル・エレクトリック・カンパニイ | Infrared absorbing article and manufacturing method thereof |
| US7258923B2 (en) | 2003-10-31 | 2007-08-21 | General Electric Company | Multilayered articles and method of manufacture thereof |
| US7399571B2 (en) | 2005-05-06 | 2008-07-15 | General Electric Company | Multilayered articles and method of manufacture thereof |
| WO2008149974A1 (en) * | 2007-06-08 | 2008-12-11 | Bridgestone Corporation | Near-infrared-shielding material , laminate including the same, and optical filter for display |
| JP2010501372A (en) * | 2006-08-22 | 2010-01-21 | スリーエム イノベイティブ プロパティズ カンパニー | Solar control film |
| US7666930B2 (en) | 2002-07-31 | 2010-02-23 | Sumitomo Metal Mining Co., Ltd. | Master batch containing heat radiation shielding component, and heat radiation shielding transparent resin form and heat radiation shielding transparent laminate for which the master batch has been used |
| JP2012019712A (en) * | 2010-07-13 | 2012-02-02 | Asahi Glass Co Ltd | Agricultural house |
| JP2012021056A (en) * | 2010-07-13 | 2012-02-02 | Asahi Glass Co Ltd | Agricultural film |
| US8900693B2 (en) | 2005-07-13 | 2014-12-02 | Sabic Global Technologies B.V. | Polycarbonate compositions having infrared absorbance, method of manufacture, and articles prepared therefrom |
| JP2016032464A (en) * | 2014-07-31 | 2016-03-10 | オカモト株式会社 | Covering material for plant cultivation |
| US9745426B2 (en) | 2013-07-12 | 2017-08-29 | Riken Technos Corporation | Method for manufacturing heat-shielding film, heat-shielding film, and heatshielding curtain |
| JP2017153475A (en) * | 2016-02-29 | 2017-09-07 | 帝人フィルムソリューション株式会社 | Agricultural house, and plant cultivation method using the agricultural house |
| JP7458219B2 (en) | 2019-07-05 | 2024-03-29 | 東京インキ株式会社 | Heat shielding resin composition and heat shielding film |
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| CN102837456B (en) * | 2012-08-09 | 2015-11-25 | 平泉县希才应用菌科技发展有限公司 | Bubble chamber film is as the application of insulation material on edible mushroom booth thermal insulation |
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| CN109049913A (en) * | 2018-06-29 | 2018-12-21 | 安徽尼古拉电子科技有限公司 | A kind of high temperature resistant radar absorbing and preparation method thereof based on the double-deck Meta Materials |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771630A (en) * | 1994-02-21 | 1998-06-30 | Nippon Carbide Kogyo Kabushiki Kaisha | Agricultural covering material |
| JPH09151203A (en) * | 1995-05-09 | 1997-06-10 | Nippon Kayaku Co Ltd | Ultra violet-curing and heat ray shielding resin composition and film coated therewith |
| JPH09205898A (en) * | 1996-02-01 | 1997-08-12 | Toppan Printing Co Ltd | Sheet for farming |
-
2001
- 2001-06-15 JP JP2001181860A patent/JP3997728B2/en not_active Expired - Lifetime
-
2002
- 2002-08-21 IN IN327CH2005 patent/IN220565B/en unknown
- 2002-08-21 CN CNB028294823A patent/CN1327758C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040131845A1 (en) * | 2002-05-13 | 2004-07-08 | Kennichi Fujita | Heat ray shielding sheet material and liquid additive for use in producing the same |
| US9074071B2 (en) * | 2002-05-13 | 2015-07-07 | Sumitomo Metal Mining Co., Ltd. | Heat ray shielding sheet material and liquid additive for use in producing the same |
| US7666930B2 (en) | 2002-07-31 | 2010-02-23 | Sumitomo Metal Mining Co., Ltd. | Master batch containing heat radiation shielding component, and heat radiation shielding transparent resin form and heat radiation shielding transparent laminate for which the master batch has been used |
| WO2004036978A1 (en) * | 2002-10-24 | 2004-05-06 | Sumitomo Metal Mining Co., Ltd. | Heat-insulating material for agricultural or horticultural facility |
| US7258923B2 (en) | 2003-10-31 | 2007-08-21 | General Electric Company | Multilayered articles and method of manufacture thereof |
| JP2007519804A (en) * | 2004-01-28 | 2007-07-19 | ゼネラル・エレクトリック・カンパニイ | Infrared absorbing article and manufacturing method thereof |
| US7399571B2 (en) | 2005-05-06 | 2008-07-15 | General Electric Company | Multilayered articles and method of manufacture thereof |
| US8900693B2 (en) | 2005-07-13 | 2014-12-02 | Sabic Global Technologies B.V. | Polycarbonate compositions having infrared absorbance, method of manufacture, and articles prepared therefrom |
| JP2013224046A (en) * | 2006-08-22 | 2013-10-31 | Three M Innovative Properties Co | Solar control film |
| KR101411214B1 (en) | 2006-08-22 | 2014-06-23 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | Solar control film |
| JP2010501372A (en) * | 2006-08-22 | 2010-01-21 | スリーエム イノベイティブ プロパティズ カンパニー | Solar control film |
| WO2008149974A1 (en) * | 2007-06-08 | 2008-12-11 | Bridgestone Corporation | Near-infrared-shielding material , laminate including the same, and optical filter for display |
| JP2012019712A (en) * | 2010-07-13 | 2012-02-02 | Asahi Glass Co Ltd | Agricultural house |
| JP2012021056A (en) * | 2010-07-13 | 2012-02-02 | Asahi Glass Co Ltd | Agricultural film |
| US9745426B2 (en) | 2013-07-12 | 2017-08-29 | Riken Technos Corporation | Method for manufacturing heat-shielding film, heat-shielding film, and heatshielding curtain |
| JP2016032464A (en) * | 2014-07-31 | 2016-03-10 | オカモト株式会社 | Covering material for plant cultivation |
| JP2017153475A (en) * | 2016-02-29 | 2017-09-07 | 帝人フィルムソリューション株式会社 | Agricultural house, and plant cultivation method using the agricultural house |
| JP7458219B2 (en) | 2019-07-05 | 2024-03-29 | 東京インキ株式会社 | Heat shielding resin composition and heat shielding film |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2005CH00327A (en) | 2007-08-24 |
| JP3997728B2 (en) | 2007-10-24 |
| CN1327758C (en) | 2007-07-25 |
| CN1649481A (en) | 2005-08-03 |
| IN220565B (en) | 2008-07-18 |
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