JP2000355646A - Vinyl chloride resin composition - Google Patents

Vinyl chloride resin composition

Info

Publication number
JP2000355646A
JP2000355646A JP11153487A JP15348799A JP2000355646A JP 2000355646 A JP2000355646 A JP 2000355646A JP 11153487 A JP11153487 A JP 11153487A JP 15348799 A JP15348799 A JP 15348799A JP 2000355646 A JP2000355646 A JP 2000355646A
Authority
JP
Japan
Prior art keywords
vinyl chloride
chloride resin
resin
resin composition
weight
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.)
Pending
Application number
JP11153487A
Other languages
Japanese (ja)
Inventor
Masaru Tanaka
優 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical MKV Co
Original Assignee
Mitsubishi Chemical MKV Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Chemical MKV Co filed Critical Mitsubishi Chemical MKV Co
Priority to JP11153487A priority Critical patent/JP2000355646A/en
Publication of JP2000355646A publication Critical patent/JP2000355646A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a rigid vinyl chloride resin composition having excellent heat shrinkability, a low coefficient of thermal expansion, and good impact resistance and flex resistance. SOLUTION: This composition is prepared by adding 2-20 wt.% at least one resin fiber to a composition mainly consisting of 100 pts.wt. (A) vinyl chloride resin, 3-40 pts.wt. (B) at least one impact modifier selected from among a chlorinated polyethylene, a methyl methacrylate/butadiene/styrene copolymer, an acrylonitrile/butadiene/styrene copolymer, an acrylic resin, and an ethylene/ vinyl acetate copolymer, and 10-50 pts.wt. (C) acicular or flaky inorganic filler.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は熱収縮性及び線膨張
率に優れた硬質塩化ビニル系樹脂組成物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hard vinyl chloride resin composition excellent in heat shrinkage and linear expansion coefficient.

【0002】[0002]

【従来の技術】硬質塩化ビニル系樹脂は、一般に、耐衝
撃性、耐熱性等の物理的性質に優れており、且つ比較的
安価であることから、建築用内外装材、電気機器部材、
家具等に広く利用されている。
2. Description of the Related Art Hard vinyl chloride resins are generally excellent in physical properties such as impact resistance and heat resistance, and are relatively inexpensive.
Widely used for furniture etc.

【0003】しかし、塩化ビニル系樹脂成形品は、気温
の変化等により長手方向の長さが変化するため、使用
時、収縮により、コーナー部に隙間が発生したり、例え
ば、窓枠部材、雨樋等のように、金属との勘合あるいは
金属に組み付ける場合には、収縮や金属との線膨張率の
違いから、気密性が低下したり、接続部で破損しやすい
という欠点があった。その解決手段として、硬質塩化ビ
ニル系樹脂成形品の芯材としてガラス繊維ネット等を複
合化する方法が知られているが、特開平9−32887
5公報記載のように、工程が複雑なために製品コストが
高くなりすぎてしまうばかりか、製品形状によっては複
合化できない場合がある。また、塩化ビニル系樹脂にガ
ラス短繊維を添加する方法が知られているが(例えば、
特公昭53−21891、特公平2−28616公
報)、特公昭49−343公報に記載のように、ガラス
強化塩化ビニル系樹脂組成物を塩化ビニル用成形機を用
いて成形するとスクリュー、バレル、金型等、金属部分
の磨耗が著しく、ランニングコストがかかる等の課題が
ある。
[0003] However, since the length of the vinyl chloride resin molded article in the longitudinal direction changes due to a change in temperature or the like, a gap is generated in a corner portion due to shrinkage during use. When fitting to a metal or assembling it with a metal like a gutter or the like, there is a drawback that airtightness is reduced or a connection part is easily damaged due to shrinkage or a difference in linear expansion coefficient with the metal. As a means for solving the problem, a method of compounding a glass fiber net or the like as a core material of a hard vinyl chloride resin molded product is known.
As described in Japanese Patent Laid-Open Publication No. 5 (1999) -1999, not only the product cost becomes too high due to the complicated process but also it may not be possible to form a composite depending on the product shape. Also, a method of adding short glass fibers to a vinyl chloride resin is known (for example,
As described in JP-B-53-21891 and JP-B-2-28616) and JP-B-49-343, when a glass-reinforced vinyl chloride-based resin composition is molded using a molding machine for vinyl chloride, screws, barrels, and gold are formed. There is a problem that metal parts such as a mold are significantly worn and running cost is high.

【0004】[0004]

【発明が解決しようとする課題】本発明は、熱収縮性に
優れ、線膨張率の小さく、且つ、耐衝撃性、耐折曲性の
良好な硬質塩化ビニル系樹脂組成物を提供するにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a hard vinyl chloride resin composition having excellent heat shrinkage, a small coefficient of linear expansion, and good impact resistance and bending resistance. .

【0005】[0005]

【課題を解決するための手段】本発明の要旨とするとこ
ろは、(A)塩化ビニル系樹脂100重量部、(B)塩
素化ポリエチレン、メチルメタクリレート−ブタジエン
−スチレン共重合体、アクリルニトリル−ブタジエン−
スチレン共重合体、アクリル系樹脂、エチレン−酢酸ビ
ニル共重合体から選択される少なくとも一種類の衝撃改
良剤3〜40重量部、(C)針状あるいは板状の無機充
填剤を10〜50重量部を主成分とする組成物中に、少
なくとも一種類の樹脂繊維を2〜20重量%有してなる
塩化ビニル系樹脂組成物にある。
The gist of the present invention is that (A) 100 parts by weight of a vinyl chloride resin, (B) chlorinated polyethylene, methyl methacrylate-butadiene-styrene copolymer, acrylonitrile-butadiene. −
3 to 40 parts by weight of at least one kind of impact modifier selected from styrene copolymer, acrylic resin and ethylene-vinyl acetate copolymer, and (C) 10 to 50 parts by weight of needle-like or plate-like inorganic filler The composition is a vinyl chloride-based resin composition comprising 2 to 20% by weight of at least one type of resin fiber in a composition mainly composed of parts.

【0006】[0006]

【発明の実施の形態】本発明を詳細に説明するに、本発
明の塩化ビニル系樹脂組成物に使用される塩化ビニル系
樹脂は、塩化ビニル又は塩化ビニルとこれに共重合可能
なコモノマーとの混合物を懸濁重合法、塊状重合法、微
細懸濁重合法又は乳化重合法等通常の方法によって製造
されたものすべてが用いられる。コモノマーとしては、
例えば、酢酸ビニル、プロピオン酸ビニル、ラウリン酸
ビニル等のビニルエステル類、メチルアクリレート、エ
チルアクリレート、ブチルアクリレート等のアクリル酸
エステル類、メチルメタクリレート、エチルメタクリレ
ート等のメタクリル酸エステル類、ジブチルマレエー
ト、ジエチルマレエート等のマレイン酸エステル類、ジ
ブチルフマレート、ジエチルフマレート等のフマール酸
エステル類、ビニルメチルエーテル、ビニルブチルエー
テル、ビニルオクチルエーテル等のビニルエーテル類、
アクリロニトリル、メタクリロニトリル等のシアン化ビ
ニル類、エチレン、プロピレン、スチレン等のα−オレ
フィン類、塩化ビニリデン、臭化ビニル等の塩化ビニル
以外のハロゲン化ビニリデン又はハロゲン化ビニル類、
ジアリルフタレート、エチレングリコールジメタクリレ
ート等の多官能性単量体が挙げられ、勿論、コモノマー
は、上述のものに限定されるものではない。コモノマー
は、塩化ビニル系樹脂の構成成分中30重量%以下、好
ましくは20重量%以下の範囲である。又、塩化ビニル
系樹脂は、グラフト重合体であっても、塩素化塩化ビニ
ル樹脂であってもよく、さらにはこれらの混合物であっ
ても良い。塩化ビニル系樹脂の平均重合度は、特に限定
されるものではないがJIS K6721に基づいた平
均重合度は、400〜2300の範囲、好ましくは70
0〜1300の範囲のものを使用する。
BEST MODE FOR CARRYING OUT THE INVENTION The vinyl chloride resin used in the vinyl chloride resin composition of the present invention comprises vinyl chloride or a copolymer of vinyl chloride and a comonomer copolymerizable therewith. Any mixture produced by a conventional method such as a suspension polymerization method, a bulk polymerization method, a fine suspension polymerization method or an emulsion polymerization method is used. As comonomer,
For example, vinyl acetate, vinyl propionate, vinyl esters such as vinyl laurate, acrylates such as methyl acrylate, ethyl acrylate and butyl acrylate, methacrylates such as methyl methacrylate and ethyl methacrylate, dibutyl maleate, diethyl Maleic esters such as maleate, fumaric esters such as dibutyl fumarate and diethyl fumarate, vinyl ethers such as vinyl methyl ether, vinyl butyl ether and vinyl octyl ether;
Acrylonitrile, vinyl cyanides such as methacrylonitrile, ethylene, propylene, α-olefins such as styrene, vinylidene chloride, vinylidene halides other than vinyl chloride such as vinyl bromide or vinyl halides,
Examples include polyfunctional monomers such as diallyl phthalate and ethylene glycol dimethacrylate, and of course, the comonomer is not limited to those described above. The comonomer is contained in the component of the vinyl chloride resin in an amount of 30% by weight or less, preferably 20% by weight or less. Further, the vinyl chloride resin may be a graft polymer, a chlorinated vinyl chloride resin, or a mixture thereof. Although the average degree of polymerization of the vinyl chloride resin is not particularly limited, the average degree of polymerization based on JIS K6721 is in the range of 400 to 2300, preferably 70.
The one in the range of 0 to 1300 is used.

【0007】本発明には、塩素化ポリエチレン、メチル
メタクリレート−ブタジエン−スチレン共重合体、アク
リルニトリル−ブタジエン−スチレン共重合体、アクリ
ル系樹脂、エチレン−酢酸ビニル共重合体から選択され
る少なくとも一種類の衝撃改良剤が使用される。これら
の衝撃改良剤は、無機充填剤及び樹脂繊維と塩化ビニル
系樹脂との密着性を向上させ、成形品の衝撃強度を向上
させるものである。添加量は少ないと衝撃改良効果がな
く、また、多くなると成形性を悪くするため、塩化ビニ
ル系樹脂100重量部に対し、3〜40重量部の範囲が
望ましい。
In the present invention, at least one selected from chlorinated polyethylene, methyl methacrylate-butadiene-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, acrylic resin, and ethylene-vinyl acetate copolymer Are used. These impact modifiers improve the adhesion between the inorganic filler and the resin fiber and the vinyl chloride resin, and improve the impact strength of the molded article. If the amount is small, the effect of improving the impact is not obtained, and if the amount is large, the moldability deteriorates. Therefore, the amount is preferably in the range of 3 to 40 parts by weight based on 100 parts by weight of the vinyl chloride resin.

【0008】本発明の塩化ビニル系樹脂組成物に配合さ
れる針状あるいは板状の無機充填剤としては、ウォラス
トナイト、硫酸マグネシウム、タルク、マイカ等が挙げ
られる。本発明でいう針状とは、長径が短径の3倍以上
の針状、紡錘状、円柱状等の粒子形のものを意味する。
また、板状とは、いわゆる板状だけでなく、いわゆる鱗
片状、薄片状の形状のものも意味する。これらの針状あ
るいは板状の無機充填剤の添加量は塩化ビニル系樹脂1
00重量部に対して、10〜50重量部が望ましい。添
加量が10重量部未満では、線膨張率、熱収縮性の改善
効果が不十分であり、また50重量部を越えて添加する
と耐衝撃性、成形加工性が低下する。
[0008] Examples of the needle-like or plate-like inorganic filler compounded in the vinyl chloride resin composition of the present invention include wollastonite, magnesium sulfate, talc, mica and the like. The needle shape in the present invention means a particle shape such as a needle shape, a spindle shape, a columnar shape, etc., whose major axis is at least three times the minor axis.
In addition, the plate shape means not only a so-called plate shape but also a so-called scale-like or flaky shape. The amount of addition of these needle-like or plate-like inorganic fillers is as follows.
10 to 50 parts by weight is desirable for 00 parts by weight. If the amount is less than 10 parts by weight, the effect of improving the coefficient of linear expansion and heat shrinkage is insufficient, and if it exceeds 50 parts by weight, the impact resistance and the formability are reduced.

【0009】本発明の塩化ビニル系樹脂組成物には、少
なくとも一種類の樹脂繊維を配合することが必須であ
る。樹脂繊維としては、塩化ビニル樹脂組成物の調整、
加工、成形中に溶融しないことが望ましく、例えばポリ
エチレンテレフタレート系、ナイロン系が好ましい。ポ
リエチレンテレフタレート系樹脂としては、テレフタル
酸をジカルボン酸成分に、エチレングリコールをグリコ
ール成分に用いた場合の他に、ジカルボン酸成分とし
て、イソフタル酸、オルトフタル酸、ナフタレンジカル
ボン酸、シクロヘキサンジカルボン酸、アジピン酸、セ
バシン酸等を共重合成分として含むものでもよく、グリ
コール成分として、ジエチレングリコール、プロピレン
グリコール、1,4−ブタンジオール、1,4−シクロ
ヘキサンジメタノール等を共重合成分として用いること
もできる。ナイロン系樹脂としては、ナイロン6、ナイ
ロン66、ナイロン46、ナイロン610、ナイロン6
12等、及び、ポリヘキサメチレンテレフタルアミド、
ポリヘキメチレンイソフタルアミド等との共重合体が挙
げられる。
It is essential that the vinyl chloride resin composition of the present invention contains at least one kind of resin fiber. As resin fibers, adjustment of vinyl chloride resin composition,
It is desirable that the resin does not melt during processing and molding. For example, polyethylene terephthalate and nylon are preferable. As the polyethylene terephthalate resin, terephthalic acid is used as the dicarboxylic acid component, and in addition to the case where ethylene glycol is used as the glycol component, as the dicarboxylic acid component, isophthalic acid, orthophthalic acid, naphthalenedicarboxylic acid, cyclohexanedicarboxylic acid, adipic acid, It may contain sebacic acid or the like as a copolymer component, and as the glycol component, diethylene glycol, propylene glycol, 1,4-butanediol, 1,4-cyclohexanedimethanol, or the like may be used as the copolymer component. Examples of the nylon resin include nylon 6, nylon 66, nylon 46, nylon 610, and nylon 6.
12 etc., and polyhexamethylene terephthalamide,
Copolymers with polyhexmethylene isophthalamide and the like can be mentioned.

【0010】これらの樹脂繊維は単独で用いても、混合
物で用いてもよいが塩化ビニル系樹脂組成物中2〜20
重量%有していることが必須である。重量%として、2
%未満では熱収縮性の向上が十分でなく、20重量%を
超えると耐衝撃性、成形加工性が低下する。平均繊維径
としては、細すぎると繊維が凝集し易く、塩化ビニル系
樹脂への分散が均一ならず、成型品の表面外観が悪化し
たり、耐衝撃性を低下させる傾向にあり、太すぎると単
位体積当たりの繊維数が少なくなり、熱収縮性の改善効
果が低下するため、5〜100μmが好ましく、更に好
ましくは10〜50μmである。平均繊維長としては、
短すぎると熱収縮性の改善効果が少なく、また、長すぎ
ると繊維が凝集し易く、成型品の表面外観が悪くなるば
かりか、成形加工性も低下するため、0.5mm〜5m
mが好ましく、さらに好ましくは0.5〜2.5mmで
ある。これらの樹脂繊維は分級し、上記の範囲以外の繊
維径、繊維長のものを除いた方が望ましく、さらには、
シリカ粒子を担持をさせた樹脂繊維の方が塩化ビニル系
樹脂への分散がし易く、加工が容易である。
These resin fibers may be used alone or as a mixture.
It is essential to have the weight%. 2% by weight
%, The heat shrinkability is not sufficiently improved, and if it exceeds 20% by weight, the impact resistance and the moldability deteriorate. As the average fiber diameter, if too small, the fibers are liable to agglomerate, the dispersion in the vinyl chloride resin is not uniform, the surface appearance of the molded product is deteriorated, or the impact resistance tends to be reduced, and if the average fiber diameter is too large, Since the number of fibers per unit volume decreases and the effect of improving heat shrinkage decreases, the thickness is preferably 5 to 100 μm, and more preferably 10 to 50 μm. As the average fiber length,
If it is too short, the effect of improving the heat shrinkage is small, and if it is too long, the fibers are liable to agglomerate, not only the surface appearance of the molded product is deteriorated, but also the molding processability is reduced.
m is preferable, and more preferably, it is 0.5 to 2.5 mm. It is desirable to classify these resin fibers and remove fiber diameters and fiber lengths other than the above ranges.
Resin fibers carrying silica particles are easier to disperse in a vinyl chloride resin and are easier to process.

【0011】本発明の塩化ビニル系樹脂組成物には、必
要に応じて、通常よく知られている熱安定剤、滑剤、加
工性改良剤、充填剤、衝撃改良剤、着色剤はもとより、
可塑剤、耐熱向上剤、酸化防止剤、紫外線吸収剤、帯電
防止剤、防かび剤、抗菌剤等、周知の各種添加剤を配合
してもよい。
The vinyl chloride resin composition of the present invention may contain, if necessary, a heat stabilizer, a lubricant, a processability improver, a filler, an impact improver, and a colorant, which are generally well known.
Various known additives such as a plasticizer, a heat resistance improver, an antioxidant, an ultraviolet absorber, an antistatic agent, a fungicide, and an antibacterial agent may be blended.

【0012】本発明の塩化ビニル系樹脂組成物は、塩化
ビニル系樹脂、上述の衝撃改良剤、無機充填剤、樹脂繊
維並びに必要に応じて各種添加剤を均一に混合すること
によって調整される。組成物は、粉末状であっても、更
に混練機によって混練した後ペレット状にしても良い。
The vinyl chloride resin composition of the present invention is prepared by uniformly mixing the vinyl chloride resin, the above-mentioned impact modifier, inorganic filler, resin fibers and various additives as required. The composition may be in the form of a powder or may be kneaded by a kneader and then into a pellet.

【0013】上述の配合成分を混合するのに用いる装置
は、実質的に混合できるならば如何なる装置でも良く。
例えば、ヘンシェルミキサー、リボンブレンダー、プラ
ネタリーミキサー、万能混合機等の混合機が挙げられ、
また、混合物を混練するには、例えば、単軸押出機、二
軸押出機、オープンロール、バンバリーミキサー、ニー
ダー、加圧ニーダー、インテンシブミキサー等の加熱し
ながら剪断力下、混練できる装置が使用される。
The apparatus used to mix the above ingredients may be any apparatus that can substantially mix.
For example, a mixer such as a Henschel mixer, a ribbon blender, a planetary mixer, a universal mixer, and the like,
In order to knead the mixture, for example, a device capable of kneading under shearing force while heating, such as a single-screw extruder, a twin-screw extruder, an open roll, a Banbury mixer, a kneader, a pressure kneader, and an intensive mixer, is used. You.

【0014】本発明の塩化ビニル系樹脂組成物は、押出
成形法、射出成形法、プレス成形法等によって、建築用
内外装資材、車両用内外装部材、電気機器用部品等に成
形されて使用される。特に、押出成形又は共押出成形に
よって、雨樋、窓枠、軟硬質ガスケット等の気密材とし
て利用価値が高い。
The vinyl chloride resin composition of the present invention is used after being molded into building interior / exterior materials, vehicle interior / exterior members, electric equipment parts, etc. by extrusion molding, injection molding, press molding, or the like. Is done. In particular, the extrusion molding or the coextrusion molding has high utility value as an airtight material such as a rain gutter, a window frame, and a soft gasket.

【0015】[0015]

【実施例】次に、本発明の塩化ビニル系樹脂を実施例に
て詳述するが、本発明はその要旨を逸脱しない限り、以
下の実施例に限定されるものではない。
EXAMPLES Next, the vinyl chloride resin of the present invention will be described in detail with reference to examples, but the present invention is not limited to the following examples unless departing from the gist thereof.

【0016】実施例1〜6、比較例1〜3 表1に示す種類及び量(重量部あるいは重量%)の塩化
ビニル系樹脂、衝撃改良剤、無機充填剤、樹脂繊維並び
に三塩基性硫酸鉛3重量部、二塩基性ステアリン酸鉛1
重量部、ステアリン酸鉛1重量部、脂肪酸系滑剤1重量
部、アクリル系加工助剤3重量部をヘンシェルミキサー
に投入して高速撹拌混合し、均一に配合した。この混合
物をロール混練機にて165℃で6分間混練し、厚さ3
mmのシートを作製した後、3mm角にペレット化し硬
質塩化ビニル系樹脂組成物を調整した。該組成物を40
φ単軸押出機(温度条件、C1:170℃、C2:18
0℃、C3:190℃、C4:195℃、D;180
℃)に供給し、幅50mm、厚み1mm、及び、幅20
mm、厚み3mmの成形品を作製した。このようにして
得た成形品を品質評価に供し、その結果を表−1に示し
た。尚、使用した配合原料は次のものを用いた。
Examples 1 to 6, Comparative Examples 1 to 3 Vinyl chloride resins, impact modifiers, inorganic fillers, resin fibers and tribasic lead sulfate of the kind and amount (parts by weight or% by weight) shown in Table 1 3 parts by weight, dibasic lead stearate 1
Parts by weight, 1 part by weight of lead stearate, 1 part by weight of a fatty acid-based lubricant, and 3 parts by weight of an acrylic processing aid were charged into a Henschel mixer, mixed at high speed, and uniformly mixed. This mixture was kneaded with a roll kneader at 165 ° C. for 6 minutes to give a thickness of 3
After preparing a sheet having a thickness of 2 mm, a 3 mm square pellet was prepared to prepare a hard vinyl chloride resin composition. The composition is
φ single screw extruder (temperature conditions, C1: 170 ° C, C2: 18
0 ° C, C3: 190 ° C, C4: 195 ° C, D; 180
° C), width 50 mm, thickness 1 mm, and width 20
A molded article having a thickness of 3 mm and a thickness of 3 mm was produced. The molded article thus obtained was subjected to quality evaluation, and the results are shown in Table 1. The following ingredients were used.

【0017】[0017]

【表1】塩化ビニル系樹脂A:平均重合度800 B:塩素化塩化ビニル(塩素化前重合度1000、塩素
化率66.5%) 耐衝撃改良剤 A:塩素化ポリエチレン(商標:36
15P、デュポンダウエラストマー社製) B:アクリル系(商標:S2001、三菱レイヨン
(株)製) 無機充填剤 A:タルク(粒子形:板状、平均粒子
径6μm) B:ウォラストナイト(粒子形:針状、平均短径30μ
m、平均長径200μm) C:炭酸カルシウム(粒子形:立方形、平均粒子径0.
1μm) 樹脂繊維 A:ポリエチレンテレフタレート(平
均繊維径20μm、平均繊維長1mm、シリカ処理) B:ナイロン66(平均繊維径20μm、平均繊維長1
mm、シリカ処理)
Table 1 Vinyl chloride resin A: Average degree of polymerization 800 B: Chlorinated vinyl chloride (polymerization degree before chlorination 1000, chlorination rate 66.5%) Impact modifier A: Chlorinated polyethylene (trademark: 36)
15P, manufactured by DuPont Dow Elastomer Co., Ltd.) B: Acrylic (trademark: S2001, manufactured by Mitsubishi Rayon Co., Ltd.) Inorganic filler A: Talc (particle form: plate, average particle diameter 6 μm) B: wollastonite (particle form) : Needle-like, average minor axis 30μ
m, average major axis: 200 μm) C: calcium carbonate (particle form: cubic, average particle diameter: 0.1 μm)
Resin fiber A: Polyethylene terephthalate (average fiber diameter 20 μm, average fiber length 1 mm, silica treatment) B: Nylon 66 (average fiber diameter 20 μm, average fiber length 1)
mm, silica treatment)

【0018】品質評価 表面平滑性;幅50mm、厚み1mmの成形品において
目視評価した。 ○;表面が平滑。 ×;表面が平滑でないあるいは金型から押出された樹脂
が平滑でなく、サイジングダイにスムーズに供せず、定
常的に押出成形ができない。 成形収縮率;幅50mm、厚み1mmの成形品を長手方
向に約35cmの試験片を切り出し、23℃に24時間
放置した後(試験前)、ギアーオーブンで70℃で24
0時間加熱後、23℃に24時間放置し、試験前の長さ
に対する収縮率を測定した。 線膨張率;幅20mm、厚み3mmの成形品を用いて、
熱機械分析装置(理学電気(株)製)を用いて圧縮荷重
法で測定した。 衝撃強度;幅20mm、厚み3mmの成形品を用いて、
JISK7111に準拠して、シャルピー衝撃値を測定
した。 折曲強度;幅20mm、厚み3mmの成形品を用いて、
JISK7203に準拠して、曲げ試験を行った。 ○;試験片が折れずに、最大曲げ強度が測定可能。 ×;試験片が試験中に破断。
Quality Evaluation Surface smoothness: A molded product having a width of 50 mm and a thickness of 1 mm was visually evaluated. ;: The surface is smooth. X: The surface is not smooth or the resin extruded from the mold is not smooth, cannot be smoothly supplied to the sizing die, and cannot be constantly extruded. Molding shrinkage: A molded product having a width of 50 mm and a thickness of 1 mm was cut out from a test piece of about 35 cm in the longitudinal direction and left at 23 ° C. for 24 hours (before the test).
After heating for 0 hour, it was left at 23 ° C. for 24 hours, and the shrinkage rate with respect to the length before the test was measured. Linear expansion coefficient; using a molded product having a width of 20 mm and a thickness of 3 mm,
It was measured by a compression load method using a thermomechanical analyzer (manufactured by Rigaku Corporation). Impact strength: Using a molded product with a width of 20 mm and a thickness of 3 mm,
The Charpy impact value was measured according to JIS K7111. Bending strength; using a molded product with a width of 20 mm and a thickness of 3 mm,
A bending test was performed according to JIS K7203. ;: The maximum bending strength can be measured without breaking the test piece. ×: The test piece was broken during the test.

【0019】[0019]

【表2】 [Table 2]

【0020】[0020]

【発明の効果】本発明の塩化ビニル系樹脂組成物は、熱
収縮性に優れ、線膨張率の小さく、且つ、耐衝撃性、耐
折曲性の良好であるため、雨樋、窓枠、軟硬質ガスケッ
ト等の気密材等の建材用途として極めて好適である。
EFFECT OF THE INVENTION The vinyl chloride resin composition of the present invention has excellent heat shrinkage, a small coefficient of linear expansion, and good impact resistance and bending resistance. It is very suitable for building materials such as airtight materials such as soft and hard gaskets.

───────────────────────────────────────────────────── 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) C08L 23:28) (C08L 27/06 25:08) (C08L 27/06 55:02) (C08L 27/06 31:04 33:00) ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08L 23:28) (C08L 27/06 25:08) (C08L 27/06 55:02) (C08L 27 / 06 31:04 33:00)

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】(A)塩化ビニル系樹脂100重量部、
(B)塩素化ポリエチレン、メチルメタクリレート−ブ
タジエン−スチレン共重合体、アクリルニトリル−ブタ
ジエン−スチレン共重合体、アクリル系樹脂、エチレン
−酢酸ビニル共重合体から選択される少なくとも一種類
の衝撃改良剤3〜40重量部、(C)針状あるいは板状
の無機充填剤を10〜50重量部を主成分とする組成物
中に、少なくとも一種類の樹脂繊維を2〜20重量%有
してなる塩化ビニル系樹脂組成物。
(A) 100 parts by weight of a vinyl chloride resin,
(B) at least one impact modifier 3 selected from chlorinated polyethylene, methyl methacrylate-butadiene-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, acrylic resin, ethylene-vinyl acetate copolymer (C) a composition comprising, as a main component, 10 to 50 parts by weight of an acicular or plate-like inorganic filler, and 2 to 20% by weight of at least one resin fiber. Vinyl-based resin composition.
【請求項2】該樹脂繊維が、ポリエチレンテレフタレー
ト系、ナイロン系から選ばれる樹脂繊維であることを特
徴とする請求項1記載の塩化ビニル系樹脂組成物。
2. The vinyl chloride resin composition according to claim 1, wherein said resin fiber is a resin fiber selected from polyethylene terephthalate type and nylon type.
【請求項3】樹脂繊維の平均繊維長が0.5〜2.5m
m、平均繊維径が10〜50μmである、請求項1又は
請求項2記載の塩化ビニル系樹脂組成物。
3. The resin fiber has an average fiber length of 0.5 to 2.5 m.
The vinyl chloride resin composition according to claim 1 or 2, wherein m and the average fiber diameter are 10 to 50 µm.
【請求項4】樹脂繊維にシリカ粒子を担持させてある、
請求項1ないし請求項3記載の塩化ビニル系樹脂組成
物。
4. A resin fiber carrying silica particles.
The vinyl chloride resin composition according to claim 1.
JP11153487A 1999-04-14 1999-06-01 Vinyl chloride resin composition Pending JP2000355646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11153487A JP2000355646A (en) 1999-04-14 1999-06-01 Vinyl chloride resin composition

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11-106046 1999-04-14
JP10604699 1999-04-14
JP11153487A JP2000355646A (en) 1999-04-14 1999-06-01 Vinyl chloride resin composition

Publications (1)

Publication Number Publication Date
JP2000355646A true JP2000355646A (en) 2000-12-26

Family

ID=26446238

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2000355646A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130023618A1 (en) * 2010-01-25 2013-01-24 Shinichi Miyake Profile extrusion molding resin composition and profile extrusion resin molded product
JP2017036370A (en) * 2015-08-07 2017-02-16 Mcppイノベーション合同会社 Vinyl chloride resin composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130023618A1 (en) * 2010-01-25 2013-01-24 Shinichi Miyake Profile extrusion molding resin composition and profile extrusion resin molded product
JP2017036370A (en) * 2015-08-07 2017-02-16 Mcppイノベーション合同会社 Vinyl chloride resin composition

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