JPH05239286A - Glass fiber-reinforced polyolefin resin composition - Google Patents
Glass fiber-reinforced polyolefin resin compositionInfo
- Publication number
- JPH05239286A JPH05239286A JP7577192A JP7577192A JPH05239286A JP H05239286 A JPH05239286 A JP H05239286A JP 7577192 A JP7577192 A JP 7577192A JP 7577192 A JP7577192 A JP 7577192A JP H05239286 A JPH05239286 A JP H05239286A
- Authority
- JP
- Japan
- Prior art keywords
- glass fiber
- weight
- propylene
- acid
- ethylene copolymer
- 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.)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は新規なガラス繊維強化ポ
リオレフィン樹脂組成物、さらに詳しくは、生産性を高
めてもガラス繊維の分散性が良く、かつガラス繊維の破
損が生じにくいため、従来のものより機械的強度が高
く、耐久性や耐衝撃性に優れる成形品を与えることがで
き、例えば自動車分野、工業材料分野、家電分野などに
好適に用いられる長繊維ガラス強化ポリオレフィン樹脂
組成物に関するものである。FIELD OF THE INVENTION The present invention relates to a novel glass fiber reinforced polyolefin resin composition, and more specifically to a glass fiber reinforced polyolefin resin composition which has good dispersibility of the glass fiber even if the productivity is increased and is less likely to break. One having a higher mechanical strength than that of the above, which can give a molded article excellent in durability and impact resistance, and relates to a long-fiber glass-reinforced polyolefin resin composition which is suitably used, for example, in the fields of automobiles, industrial materials, home appliances, etc. Is.
【０００２】[0002]
【従来の技術】従来、ガラス繊維強化ポリプロピレン系
樹脂は機械的強度、成形性、耐薬品性、耐久性などに優
れていることから、工業材料分野において重要な素材と
して広く用いられている。しかしながら、このガラス繊
維強化ポリプロピレン系樹脂は引張強度や曲げ強度など
の機械的強度が高い反面、衝撃強度が低いという欠点を
有しており、高い機械的強度を保持するとともに、衝撃
強度の改良されたものが強く望まれる。2. Description of the Related Art Conventionally, glass fiber reinforced polypropylene resin has been widely used as an important material in the field of industrial materials because of its excellent mechanical strength, moldability, chemical resistance and durability. However, while this glass fiber reinforced polypropylene resin has high mechanical strength such as tensile strength and bending strength, it has the drawback of low impact strength, and it retains high mechanical strength and has improved impact strength. It is strongly desired.
【０００３】この衝撃強度を改良する方法としては、例
えばガラス繊維強化ポリプロピレン系樹脂にゴム状弾性
体を添加する方法が知られているが、この方法は衝撃強
度は改良されるものの、ガラス繊維強化の特徴である機
械的強度が低下するのを免れないという欠点を有してい
る。As a method for improving the impact strength, for example, a method in which a rubber-like elastic material is added to a glass fiber reinforced polypropylene resin is known. Although this method improves the impact strength, it is reinforced by the glass fiber. However, it has a drawback that the mechanical strength, which is a characteristic of, is unavoidable.
【０００４】また、ガラス繊維強化ポリプロピレン系樹
脂のガラス繊維長を長くするために、混練工程を経ない
引抜き法などにより強化樹脂を製造する方法も提案され
ている。この方法により得られたガラス繊維強化ポリプ
ロピレン系樹脂は、機械的強度はもちろんのこと、衝撃
強度もかなり改善される。しかしながら、この製造方法
においては、一般に生産性が低く、また生産性を高めよ
うとすると、ガラス繊維の分散性が低下して、表面外観
が劣化するなどの好ましくない結果を招来する上、射出
成形などの成形時においてガラス繊維が破損し、十分に
満足しうる特性が得られない。Further, in order to increase the glass fiber length of the glass fiber reinforced polypropylene resin, a method of producing a reinforced resin by a drawing method without a kneading process has been proposed. The glass fiber reinforced polypropylene resin obtained by this method has not only improved mechanical strength but also improved impact strength. However, in this manufacturing method, the productivity is generally low, and if the productivity is increased, the dispersibility of the glass fiber is lowered, which leads to unfavorable results such as deterioration of the surface appearance. The glass fiber is broken during molding such as the above, and sufficiently satisfactory properties cannot be obtained.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、このような
事情のもとで、生産性を高めてもガラス繊維の分散性が
良く、かつガラス繊維の破損が生じにくくて、従来のも
のより機械的強度が高い上、耐久性や耐衝撃性に優れる
成形品を与えうるガラス繊維強化ポリプロピレン樹脂組
成物を提供することを目的としてなされたものである。Under these circumstances, the present invention has a good dispersibility of glass fibers even if the productivity is increased, and the glass fibers are less likely to be damaged. The object of the present invention is to provide a glass fiber reinforced polypropylene resin composition which can give a molded product having high mechanical strength and excellent durability and impact resistance.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、改善され
た性質を有するガラス繊維強化ポリオレフィン樹脂組成
物を開発すべく鋭意研究を重ねた結果、特定のメトルイ
ンデックスを有するプロピレン単独重合体又はプロピレ
ン‐エチレン共重合体とガラス長繊維とを特定の割合で
含有する組成物、あるいはこれにさらに特定量の酸変性
ポリオレフィンを配合した組成物を、引抜き法によりペ
レット長が特定の範囲にあり、かつ該ガラス繊維長がペ
レット長と実質上等しくなるように調製し、このペレッ
ト状組成物と特定のメトルインデックスを有するプロピ
レン単独重合体又はプロピレン‐エチレン共重合体とを
所定の割合で含有する樹脂組成物により、その目的を達
成しうることを見出し、この知見に基づいて本発明を完
成するに至った。Means for Solving the Problems As a result of intensive studies to develop a glass fiber reinforced polyolefin resin composition having improved properties, the present inventors have found that a propylene homopolymer having a specific metor index or A composition containing a propylene-ethylene copolymer and a long glass fiber in a specific ratio, or a composition in which a specific amount of an acid-modified polyolefin is further mixed, the pellet length is in a specific range by a drawing method, And a resin prepared such that the glass fiber length is substantially equal to the pellet length, and a resin containing the pelletized composition and a propylene homopolymer or a propylene-ethylene copolymer having a specific metol index in a predetermined ratio. It has been found that the composition can achieve the object, and the present invention has been completed based on this finding.
【０００７】すなわち、本発明は、（Ａ）メトルインデ
ックスが３００ｇ／１０分以上のプロピレン単独重合体
又はプロピレン‐エチレン共重合体２０〜６０重量％と
ガラス繊維８０〜４０重量％とから成り、ペレット長が
２〜２０ｍｍで、かつ該ガラス繊維長がペレット長に実
質上等しいペレット１０〜７０重量部、又は（Ａ′）メ
トルインデックス３００ｇ／１０分以上のプロピレン単
独重合体又はプロピレン‐エチレン共重合体２０〜６０
重量％とガラス繊維８０〜４０重量％とから成る混合物
１００重量部に対し、酸付加量０．１〜１０重量％の酸
変性ポリオレフィン１〜１０重量部を配合して成り、ペ
レット長が２〜２０ｍｍで、かつ該ガラス繊維長がペレ
ット長に実質上等しいペレット１０〜７０重量部と、
（Ｂ）メトルインデックスが５〜１００ｇ／１０分のプ
ロピレン単独重合体又はプロピレン‐エチレン共重合体
９０〜３０重量部とを全量が１００重量部になるように
混合したことを特徴とするガラス繊維強化ポリオレフィ
ン樹脂組成物を提供するものである。That is, the present invention comprises (A) a propylene homopolymer or a propylene-ethylene copolymer having a mettle index of 300 g / 10 min or more of 20 to 60% by weight and a glass fiber of 80 to 40% by weight, and pellets. 10 to 70 parts by weight of pellets having a length of 2 to 20 mm and the glass fiber length being substantially equal to the pellet length, or (A ') a propylene homopolymer or a propylene-ethylene copolymer having a mettle index of 300 g / 10 min or more. 20-60
1 to 10 parts by weight of an acid-modified polyolefin having an acid addition amount of 0.1 to 10% by weight is added to 100 parts by weight of a mixture of 80% to 40% by weight of glass fiber and a pellet length of 2 to 10 to 70 parts by weight of pellets having a length of 20 mm and the glass fiber length substantially equal to the pellet length,
(B) Glass fiber reinforced characterized by mixing 90 to 30 parts by weight of a propylene homopolymer or a propylene-ethylene copolymer having a mettle index of 5 to 100 g / 10 min so that the total amount becomes 100 parts by weight. A polyolefin resin composition is provided.
【０００８】本発明組成物は、（Ａ）成分又は（Ａ′）
成分のペレット状樹脂組成物と（Ｂ）成分の樹脂とから
成るものであって、（Ａ）成分又は（Ａ′）成分におい
ては、メトルインデックス（ＭＩ）が３００ｇ／１０分
以上のプロピレン単独重合体又はプロピレン‐エチレン
共重合体が用いられる。このＭＩが３００ｇ／１０分未
満では樹脂の含浸性が不足し、生産量を上げた場合、ガ
ラス繊維の分散不良が発生するおそれがあり、成形時に
繊維が破断しやすい。The composition of the present invention comprises the component (A) or (A ').
Which comprises a pellet-shaped resin composition as a component and a resin as a component (B), wherein the component (A) or the component (A ') has a propylene single weight of at least 300 g / 10 min. A polymer or a propylene-ethylene copolymer is used. If the MI is less than 300 g / 10 minutes, the impregnating property of the resin will be insufficient, and if the production amount is increased, the glass fibers may be poorly dispersed, and the fibers are likely to break during molding.
【０００９】該プロピレン‐エチレン共重合体として
は、結晶性のプロピレン‐エチレンブロック共重合体が
好適である。該プロピレン‐エチレンブロック共重合体
としては、通常エチレン単位の含有量が少ないエチレン
プロピレンランダム共重合体からなる共重合部又はプロ
ピレン単独重合体から成るホモ重合部と、エチレン単位
の含有量が比較的多いエチレンプロピレンランダム共重
合体から成る共重合部とから構成された、いわゆる結晶
性プロピレンブロック共重合体として市販されているも
のを用いることができる。また、このプロピレン‐エチ
レンブロック共重合体は、前記ホモ重合部又は共重合部
がブテン‐１などのα‐オレフィン単位を適当な割合で
含有するものであってもよい。The propylene-ethylene copolymer is preferably a crystalline propylene-ethylene block copolymer. The propylene-ethylene block copolymer usually has a relatively low content of ethylene units, a copolymerized part consisting of an ethylene-propylene random copolymer or a homopolymerized part composed of a propylene homopolymer, and a relatively low ethylene unit content. What is commercially available as a so-called crystalline propylene block copolymer, which is composed of a copolymerization part composed of a large amount of ethylene propylene random copolymer, can be used. Further, in the propylene-ethylene block copolymer, the homopolymerization part or the copolymerization part may contain an α-olefin unit such as butene-1 in an appropriate ratio.
【００１０】また、該（Ａ）成分又は（Ａ′）成分にお
いて用いられるガラス繊維としては、含アルカリガラ
ス、低アルカリガラス、無アルカリガラスのいずれであ
ってもよく、また形態については、ロービングが好まし
く用いられる。このガラス繊維は適当な表面処理剤で処
理して用いてもよい。The glass fiber used in the component (A) or the component (A ') may be any of alkali-containing glass, low-alkali glass and non-alkali glass, and the morphology is roving. It is preferably used. This glass fiber may be treated with an appropriate surface treatment agent before use.
【００１１】前記表面処理剤としては、例えばシラン
系、チタネート系、アルミニウム系、クロム系、ジルコ
ニウム系、ボラン系カップリング剤などが挙げられる
が、これらの中でシラン系カップリング剤及びチタネー
ト系カップリング剤が好ましく、特にシラン系カップリ
ング剤が好適である。Examples of the surface treatment agent include silane-based, titanate-based, aluminum-based, chromium-based, zirconium-based, and borane-based coupling agents. Among these, silane-based coupling agents and titanate-based coupling agents are included. A ring agent is preferable, and a silane coupling agent is particularly preferable.
【００１２】このシラン系カップリング剤としては、例
えばトリエトキシシラン、ビニルトリス（β‐メトキシ
エトキシ）シラン、γ‐メタクリロキシプロピルトリメ
トキシシラン、γ‐グリシドキシプロピルトリメトキシ
シラン、β‐（３，４‐エポキシシクロヘキシル）エチ
ルトリメトキシシラン、Ｎ‐β‐（アミノエチル）‐γ
‐アミノプロピルトリメトキシシラン、Ｎ‐β‐（アミ
ノエチル）‐γ‐アミノプロピルメチルジメトキシシラ
ン、γ‐アミノプロピルトリエトキシシラン、Ｎ‐フェ
ニル‐γ‐アミノプロピルトリメトキシシラン、γ‐メ
トカプトプロピルトリメトキシシラン、γ‐クロロプロ
ピルトリメトキシシランなどが挙げられる。これらの中
でもγ‐アミノプロピルトリエトキシシラン、Ｎ‐β‐
（アミノエチル）‐γ‐アミノプロピルトリメトキシシ
ランが好適である。Examples of the silane coupling agent include triethoxysilane, vinyltris (β-methoxyethoxy) silane, γ-methacryloxypropyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, β- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane, N-β- (aminoethyl) -γ
-Aminopropyltrimethoxysilane, N-β- (aminoethyl) -γ-aminopropylmethyldimethoxysilane, γ-aminopropyltriethoxysilane, N-phenyl-γ-aminopropyltrimethoxysilane, γ-methcaptopropyltrimethoxysilane Examples thereof include methoxysilane and γ-chloropropyltrimethoxysilane. Among these, γ-aminopropyltriethoxysilane, N-β-
(Aminoethyl) -γ-aminopropyltrimethoxysilane is preferred.
【００１３】該ガラス繊維を前記表面処理剤で処理する
方法については特に制限はなく、従来慣用されている方
法、例えば水溶液法、有機溶媒法、スプレー法など、任
意の方法を用いることができる。The method of treating the glass fiber with the surface treating agent is not particularly limited, and any conventionally used method such as an aqueous solution method, an organic solvent method, or a spray method can be used.
【００１４】通常このようにして表面処理された平均繊
維径３〜２０μｍのガラス繊維を適当な収束剤で収束し
たガラスロービングが用いられる。該収束剤としては、
例えばウレタン系、アクリル系、ブタジエン系、エポキ
シ系などがあり、いずれも用いることができるが、これ
らの中ウレタン系が好ましい。このウレタン系収束剤
は、通常ジイソシアネート化合物と多価アルコールとの
重付加反応により得られるポリイソシアネートを５０重
量％以上の割合で含有するものであって、油変性型、湿
気硬化型、ブロック型などの１液タイプ及び触媒硬化
型、ポリオール硬化型などの２液タイプがあるが、いず
れも用いることができる。Usually, a glass roving in which glass fibers having an average fiber diameter of 3 to 20 μm which have been surface-treated in this way are bundled with a suitable sizing agent are used. As the converging agent,
For example, there are urethane type, acrylic type, butadiene type, epoxy type and the like, and any of them can be used, but among these, urethane type is preferable. This urethane-based sizing agent usually contains polyisocyanate obtained by polyaddition reaction of diisocyanate compound and polyhydric alcohol in a proportion of 50% by weight or more, and is oil-modified, moisture-curable, block-type, etc. There is a one-pack type and a two-pack type such as a catalyst hardening type and a polyol hardening type, and any of them can be used.
【００１５】前記プロピレン単独重合体又はプロピレン
‐エチレン共重合体とガラス繊維は、それぞれ２０〜６
０重量％及び８０〜４０重量％の割合で配合することが
必要である。ガラス繊維の量が４０重量％未満では引抜
きが困難であるとともに経済的に不利であるし、８０重
量％を超えると樹脂の含浸性が低下して、ガラス繊維の
分散不良が発生する。The propylene homopolymer or propylene-ethylene copolymer and the glass fiber are each 20 to 6
It is necessary to blend in a proportion of 0% by weight and 80-40% by weight. When the amount of the glass fiber is less than 40% by weight, it is difficult to draw out and it is economically disadvantageous, and when it exceeds 80% by weight, the impregnating property of the resin is lowered and the dispersion of the glass fiber occurs.
【００１６】本発明組成物においては、得られるガラス
繊維強化ポリオレフィン樹脂組成物の強度をさらに向上
させるために、所望により前記樹脂成分とガラス繊維と
の混合物に、さらに酸変性ポリオレフィンを配合しても
よい。この酸変性ポリオレフィンに使用されるポリオレ
フィンとしては、例えばポリプロピレンや、ポリエチレ
ン、エチレン‐α‐オレフィン共重合ゴム、エチレン‐
α‐オレフィン‐非共役ジエン系化合物共重合体（例え
ばＥＰＤＭなど）、エチレン‐芳香族モノビニル化合物
‐共役ジエン系化合物共重合ゴムなどが用いられる。ま
た、前記α‐オレフィンとしては、例えばプロピレン、
ブテン‐１、ペンテン‐１、ヘキセン‐１、４‐メチル
ペンテン‐１などが挙げられ、これらは１種用いてもよ
いし、２種以上を組み合わせて用いてもよい。これらの
ポリオレフィンの中では、ホモポリプロピレンが好まし
い。In the composition of the present invention, in order to further improve the strength of the glass fiber reinforced polyolefin resin composition obtained, if desired, an acid-modified polyolefin may be further added to the mixture of the resin component and the glass fiber. Good. Examples of the polyolefin used for this acid-modified polyolefin include polypropylene, polyethylene, ethylene-α-olefin copolymer rubber, ethylene-
An α-olefin-non-conjugated diene compound copolymer (for example, EPDM), an ethylene-aromatic monovinyl compound-conjugated diene compound copolymer rubber and the like are used. Further, as the α-olefin, for example, propylene,
Butene-1, pentene-1, hexene-1, 4-methylpentene-1 and the like can be mentioned, and these may be used alone or in combination of two or more. Of these polyolefins, homopolypropylene is preferred.
【００１７】さらに、変性に用いられるカルボン酸とし
ては、不飽和カルボン酸及びその誘導体が挙げられ、該
不飽和カルボン酸としては、例えばアクリル酸、メタク
リル酸、マレイン酸、フマル酸、イタコン酸、クロトン
酸、シトラコン酸、ソルビン酸、メサコン酸、アンゲリ
カ酸などが挙げられ、またその誘導体としては、酸無水
物、エステル、アミド、イミド、金属塩などがあり、例
えば無水マレイン酸、無水イタコン酸、無水シトラコン
酸、アクリル酸メチル、メタクリル酸メチル、アクリル
酸エチル、アクリル酸ブチル、マレイン酸モノエチルエ
ステル、アクリルアミド、マレイン酸モノアミド、マレ
イミド、Ｎ‐ブチルマレイミド、アクリル酸ナトリウ
ム、メタクリル酸ナトリウムなどを挙げることができ、
特に無水マレイン酸が好ましい。Further, examples of the carboxylic acid used for modification include unsaturated carboxylic acids and their derivatives. Examples of the unsaturated carboxylic acids include acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid and croton. Acids, citraconic acid, sorbic acid, mesaconic acid, angelic acid and the like, and derivatives thereof include acid anhydrides, esters, amides, imides, metal salts and the like, for example, maleic anhydride, itaconic anhydride, anhydrous. Examples include citraconic acid, methyl acrylate, methyl methacrylate, ethyl acrylate, butyl acrylate, maleic acid monoethyl ester, acrylamide, maleic acid monoamide, maleimide, N-butyl maleimide, sodium acrylate and sodium methacrylate. You can
Maleic anhydride is particularly preferable.
【００１８】これらの不飽和カルボン酸やその誘導体
は、前記ポリオレフィンを変性する場合、１種用いても
よいし、２種以上を組み合わせてもよく、また変性方法
については特に制限はなく、公知の種々の方法を用いる
ことができる。例えば該ポリオレフィンを適当な有機溶
媒に溶解し、不飽和カルボン酸やその誘導体及びラジカ
ル発生剤を添加してかきまぜ、加熱する方法、あるいは
前記各成分を押出機に供給してグラフト共重合を行う方
法などを用いることができる。These unsaturated carboxylic acids and their derivatives may be used alone or in combination of two or more when modifying the above-mentioned polyolefin, and the modification method is not particularly limited and is known. Various methods can be used. For example, a method in which the polyolefin is dissolved in an appropriate organic solvent, an unsaturated carboxylic acid or derivative thereof and a radical generator are added, and the mixture is stirred and heated, or a method in which the above components are supplied to an extruder to perform graft copolymerization Etc. can be used.
【００１９】本発明においては、この酸変性ポリオレフ
ィンにおける酸付加量は０．１〜１０重量％の範囲で選
ばれる。この付加量が０．１重量％未満では強度の改良
効果が十分に発揮されないし、１０重量％を超えるとこ
れ以上酸が付加されにくく、むしろ付加されない酸が増
え、機械的強度や衝撃強度が低下する場合がある。この
酸変性ポリオレフィンは１種用いてもよいし、２種以上
を組み合わせて用いてもよく、また、その配合量は、前
記樹脂成分とガラス繊維との混合物１００重量部に対し
て、１〜１０重量部の範囲で選ぶことが必要である。こ
の量が１重量部未満では強度の改良効果が十分に発揮さ
れないし、１０重量部を超えるとその量の割には強度の
改良効果の向上はみられず、むしろ経済的に不利となる
上、衝撃強度が低下する場合がある。In the present invention, the acid addition amount in this acid-modified polyolefin is selected in the range of 0.1 to 10% by weight. If the addition amount is less than 0.1% by weight, the effect of improving the strength is not sufficiently exerted, and if it exceeds 10% by weight, it is difficult to add more acid, and the amount of acid that is not added is increased, and mechanical strength and impact strength are increased. It may decrease. This acid-modified polyolefin may be used alone or in combination of two or more, and the amount thereof is 1 to 10 relative to 100 parts by weight of the mixture of the resin component and the glass fiber. It is necessary to select within the range of parts by weight. If this amount is less than 1 part by weight, the effect of improving the strength is not sufficiently exerted, and if it exceeds 10 parts by weight, the effect of improving the strength is not improved for the amount, and it is rather economically disadvantageous. The impact strength may decrease.
【００２０】本発明組成物における（Ａ）成分又は
（Ａ′）成分は、前記のようにして得られた混合物を引
抜き法により、長さが２〜２０ｍｍになるようにペレッ
トを調製することが必要である。この場合、該ガラス繊
維の長さは、実質上ペレットの長さと等しくなる。この
ペレットの長さが２ｍｍ未満では機械的強度及び衝撃強
度が劣るし、２０ｍｍを超えると成形時に分級が発生し
やすく、物性にバラツキが生じるとともに、成形時に噛
み込み不良などが発生しやすくなる。For the component (A) or component (A ') in the composition of the present invention, pellets may be prepared by pulling out the mixture obtained as described above so as to have a length of 2 to 20 mm. is necessary. In this case, the length of the glass fiber is substantially equal to the length of the pellet. If the length of the pellet is less than 2 mm, the mechanical strength and impact strength are poor, and if it exceeds 20 mm, classification tends to occur at the time of molding, variation in physical properties occurs, and biting failure tends to occur at the time of molding.
【００２１】本発明組成物においては、（Ｂ）成分とし
てＭＩが５〜１００ｇ／１０分のプロピレン単独重合体
又はプロピレン‐エチレン共重合体が用いられる。該プ
ロピレン‐エチレン共重合体としては、前記（Ａ）成分
又は（Ａ′）成分の場合と同じようなものを用いること
ができる。このＭＩが５ｇ／１０分未満では成形に劣
り、外観が不良になるとともに、成形時に繊維が破断し
やすくなり、十分な強度が得られない場合がるし、１０
０ｇ／１０分を超えると衝撃強度や耐久性が低下する場
合がある。In the composition of the present invention, a propylene homopolymer or a propylene-ethylene copolymer having an MI of 5 to 100 g / 10 min is used as the component (B). As the propylene-ethylene copolymer, the same one as in the case of the component (A) or the component (A ') can be used. When the MI is less than 5 g / 10 minutes, the molding is poor, the appearance is poor, and the fibers are easily broken during molding, and sufficient strength may not be obtained.
If it exceeds 0 g / 10 minutes, the impact strength and durability may decrease.
【００２２】本発明組成物においては、前記（Ａ）成分
又は（Ａ′）成分１０〜７０重量部と（Ｂ）成分９０〜
３０重量部とを全量が１００重量部になるように混合す
ることが必要である。該（Ａ）成分又は（Ａ′）成分が
１０重量部未満では、機械的強度及び衝撃強度が劣る
し、７０重量部を超えると成形性が低下し、外観不良と
なる。In the composition of the present invention, 10 to 70 parts by weight of the component (A) or the component (A ') and 90 to the component (B) are used.
It is necessary to mix 30 parts by weight so that the total amount becomes 100 parts by weight. If the amount of the component (A) or the component (A ') is less than 10 parts by weight, the mechanical strength and impact strength will be poor, and if it exceeds 70 parts by weight, the moldability will be deteriorated and the appearance will be poor.
【００２３】本発明のガラス繊維強化ポリオレフィン樹
脂組成物には、所望に応じ、本発明の目的がそこなわれ
ない範囲で、前記ガラス繊維以外の繊維状強化剤、タル
ク、マイカ、ガラスフレークなどの無機系充填剤や有機
系充填剤、他の熱可塑性樹脂、滑剤、着色剤、安定剤、
酸化防止剤、紫外線吸収剤、帯電防止剤、難燃剤、可塑
剤などを添加することができる。If desired, the glass fiber-reinforced polyolefin resin composition of the present invention may contain a fibrous reinforcing agent other than the above-mentioned glass fibers, talc, mica, glass flakes, etc. within a range not detracting from the object of the present invention. Inorganic fillers and organic fillers, other thermoplastic resins, lubricants, colorants, stabilizers,
Antioxidants, ultraviolet absorbers, antistatic agents, flame retardants, plasticizers and the like can be added.
【００２４】[0024]
【発明の効果】本発明のガラス繊維強化ポリオレフィン
樹脂組成物は、生産性を高めてもガラス繊維の分散性が
よく、かつガラス繊維の破損が生じにくいため、従来の
ものより機械的強度が高く、耐久性や耐衝撃性に優れる
成形品を与えることができ、例えば自動車分野、工業材
料分野、家電分野などに好適に用いられる。EFFECT OF THE INVENTION The glass fiber reinforced polyolefin resin composition of the present invention has high mechanical strength as compared with the conventional ones because the dispersibility of the glass fibers is good even if the productivity is increased and the glass fibers are not easily broken. A molded product having excellent durability and impact resistance can be provided, and it is suitably used, for example, in the fields of automobiles, industrial materials and household appliances.
【００２５】[0025]
【実施例】次に、実施例により本発明をさらに詳細に説
明するが、本発明はこれらの例によってなんら限定され
るものではない。EXAMPLES The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
【００２６】なお、成形品の物性は次のようにして求め
た。 （１）アイゾット衝撃強度（ノッチ付） ＪＩＳ Ｋ‐７１１０に準拠して求めた。 （２）曲げ特性 ＪＩＳ Ｋ‐７２０３に準拠して、１２０℃の曲げ強度
及び曲げ弾性率を求めた。 （３）熱変形温度ＨＤＴ（高荷重） ＪＩＳ Ｋ‐６６７１に準拠して求めた。The physical properties of the molded product were determined as follows. (1) Izod impact strength (with notch) It was determined according to JIS K-7110. (2) Bending characteristics Based on JIS K-7203, bending strength and bending elastic modulus at 120 ° C were obtained. (3) Heat distortion temperature HDT (high load) Obtained in accordance with JIS K-6671.
【００２７】調製例、比較調製例 各種ポリプロピレン系樹脂、アミノシランで表面処理さ
れた繊維径１３μｍのガラス繊維を１７０本収束したガ
ラスロービング及び場合により各種酸変性ポリオレフィ
ンを用い、ダイス５０ｍｍφ押出機の先端に取り付け、
含浸部に４本のロッドを直線状に配置、余熱温度２００
℃、溶融温度２４０℃、ロッド４本、６ｍｍ（直径）×
３ｍｍ（長さ）、傾斜角度２５度の条件下において、テ
ンションロール群で繊維束の量を調整しながらダイ内に
送り込み含浸を行い、冷却後、ペレタイザでペレットを
作成し、樹脂組成物Ａ‐１、Ａ‐２、Ａ′‐１〜Ａ′‐
６を得た。組成、引出し速度及びペレット長を表１に示
す。Preparation Examples, Comparative Preparation Examples Various polypropylene resins, glass rovings in which 170 glass fibers having a fiber diameter of 13 μm surface-treated with aminosilane were converged, and various acid-modified polyolefins were used at the tip of a die 50 mmφ extruder. attachment,
Four rods are arranged linearly in the impregnation part, and the residual heat temperature is 200
℃, melting temperature 240 ℃, 4 rods, 6mm (diameter) ×
Under the conditions of 3 mm (length) and 25 ° inclination angle, the amount of fiber bundle is adjusted by a tension roll group and fed into the die for impregnation, and after cooling, pellets are prepared with a pelletizer, and resin composition A- 1, A-2, A'-1 to A'-
Got 6. The composition, drawing speed and pellet length are shown in Table 1.
【００２８】なお、使用した樹脂の種類を以下に示す。 ＰＰ‐１：ＭＩ５００のプロピレン単独重合体 ＰＰ‐２：ＭＩ８００の結晶性プロピレン‐エチレン共
重合体 ＰＰ‐３：ＭＩ５のプロピレン単独重合体 ＰＰ‐４：ＭＩ２０の結晶性プロピレン‐エチレン共重
合体 酸変性ポリオレフィン：酸付加量５ｗｔ％のポリプロピ
レンThe types of resins used are shown below. PP-1: MI500 propylene homopolymer PP-2: MI800 crystalline propylene-ethylene copolymer PP-3: MI5 propylene homopolymer PP-4: MI20 crystalline propylene-ethylene copolymer Acid-modified Polyolefin: Polypropylene with 5 wt% acid addition
【００２９】[0029]
【表１】 （注）×印は含浸不良によりペレット化不可を示す。[Table 1] (Note) X indicates that pelletization is impossible due to poor impregnation.
【００３０】実施例１〜６、比較例１〜７ 表２に示す種類と量の各成分をドライブレンド後、射出
成形により試験片及び外観評価用の角板（１４０×１４
０×３ｍｍ）を成形し、物性を評価した。その結果を表
２に示す。Examples 1 to 6 and Comparative Examples 1 to 7 After dry blending the components of the types and amounts shown in Table 2, a test piece and a square plate (140 × 14) for appearance evaluation were formed by injection molding.
0 × 3 mm) was molded and the physical properties were evaluated. The results are shown in Table 2.
【００３１】なお、使用した樹脂の種類を以下に示す。 ＰＰ‐ａ：ＭＩ３０の結晶性プロピレン‐エチレン共重
合体 ＰＰ‐ｂ：ＭＩ２０のプロピレン単独重合体 ＰＰ‐ｃ：ＭＩ５０の結晶性プロピレン‐エチレン共重
合体 ＰＰ‐ｄ：ＭＩ１の結晶性プロピレン‐エチレン共重合
体 ＰＰ‐ｅ：ＭＩ３００のプロピレン単独重合体The types of resins used are shown below. PP-a: MI30 crystalline propylene-ethylene copolymer PP-b: MI20 propylene homopolymer PP-c: MI50 crystalline propylene-ethylene copolymer PP-d: MI1 crystalline propylene-ethylene copolymer Polymer PP-e: MI300 propylene homopolymer
【００３２】[0032]
【表２】 [Table 2]
Claims (2)
１０分以上のプロピレン単独重合体又はプロピレン‐エ
チレン共重合体２０〜６０重量％とガラス繊維８０〜４
０重量％とから成り、ペレット長が２〜２０ｍｍで、か
つ該ガラス繊維長がペレット長に実質上等しいペレット
１０〜７０重量部と（Ｂ）メルトインデックスが５〜１
００ｇ／１０分のプロピレン単独重合体又はプロピレン
‐エチレン共重合体９０〜３０重量部とを全量が１００
重量部になるように混合したことを特徴とするガラス繊
維強化ポリオレフィン樹脂組成物。1. (A) Melt index is 300 g /
Propylene homopolymer or propylene-ethylene copolymer 20 to 60% by weight for 10 minutes or more and glass fiber 80 to 4
0% by weight, the pellet length is 2 to 20 mm, the glass fiber length is substantially equal to the pellet length, 10 to 70 parts by weight, and (B) the melt index is 5 to 1.
A total amount of 100 g of propylene homopolymer or propylene-ethylene copolymer 90 to 30 parts by weight of 100 g / 10 min.
A glass fiber reinforced polyolefin resin composition, which is mixed in an amount of 1 part by weight.
１０分以上のプロピレン単独重合体又はプロピレン‐エ
チレン共重合体２０〜６０重量％とガラス繊維８０〜４
０重量％とから成る混合物１００重量部に対し、酸付加
量０．１〜１０重量％の酸変性ポリオレフィン１〜１０
重量部を配合して成り、ペレット長が２〜２０ｍｍで、
かつ該ガラス繊維長がペレット長に実質上等しいペレッ
ト１０〜７０重量部と（Ｂ）メルトインデックスが５〜
１００ｇ／１０分のプロピレン単独重合体又はプロピレ
ン‐エチレン共重合体９０〜３０重量部とを全量が１０
０重量部になるように混合したことを特徴とするガラス
繊維強化ポリオレフィン樹脂組成物。2. (A ') melt index 300 g /
Propylene homopolymer or propylene-ethylene copolymer 20 to 60% by weight for 10 minutes or more and glass fiber 80 to 4
Acid-modified polyolefin 1 to 10 with an acid addition amount of 0.1 to 10% by weight with respect to 100 parts by weight of a mixture of 0% by weight and
It is made by blending parts by weight, and the pellet length is 2 to 20 mm,
And 10 to 70 parts by weight of pellets having a glass fiber length substantially equal to the pellet length and (B) a melt index of 5
The total amount of 100 g / 10 min of propylene homopolymer or 90 to 30 parts by weight of propylene-ethylene copolymer is 10
A glass fiber reinforced polyolefin resin composition, which is mixed in an amount of 0 part by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7577192A JP2875425B2 (en) | 1992-02-28 | 1992-02-28 | Polyolefin resin molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7577192A JP2875425B2 (en) | 1992-02-28 | 1992-02-28 | Polyolefin resin molding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05239286A true JPH05239286A (en) | 1993-09-17 |
| JP2875425B2 JP2875425B2 (en) | 1999-03-31 |
Family
ID=13585808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7577192A Expired - Fee Related JP2875425B2 (en) | 1992-02-28 | 1992-02-28 | Polyolefin resin molding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2875425B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173329A (en) * | 1993-11-05 | 1995-07-11 | Idemitsu Petrochem Co Ltd | Material for blow molding, method of blow molding and blow molded product |
| EP0663418A1 (en) * | 1993-12-28 | 1995-07-19 | Kawasaki Steel Corporation | Mixture of long glass fiber-reinforced polypropylene and polypropylene resin and moldings formed therefrom |
| JPH10139892A (en) * | 1996-11-14 | 1998-05-26 | Idemitsu Petrochem Co Ltd | Resin molding part for cooling system of internal combustion engine |
| JPH1134097A (en) * | 1997-07-15 | 1999-02-09 | Chisso Corp | Outer door handle molded product composed of long fiber glass reinforced propylene resin |
| JP2003535944A (en) * | 2000-06-07 | 2003-12-02 | バセル テクノロジー カンパニー ベスローテン フェンノートシャップ | Polyolefin compositions comprising a low viscosity propylene homopolymer, fibers and stretch nonwovens prepared therefrom. |
| JP2004231911A (en) * | 2003-02-03 | 2004-08-19 | Mitsui Chemicals Inc | Long fiber-reinforced polyolefin resin composition and method for producing the same |
| WO2007069760A1 (en) * | 2005-12-14 | 2007-06-21 | Sumitomo Chemical Company, Limited | Polyolefin resin composition, molded body made of same, and method for producing polyolefin resin composition |
| WO2010074120A1 (en) * | 2008-12-25 | 2010-07-01 | 東レ株式会社 | Fiber-reinforced propylene resin composition |
-
1992
- 1992-02-28 JP JP7577192A patent/JP2875425B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173329A (en) * | 1993-11-05 | 1995-07-11 | Idemitsu Petrochem Co Ltd | Material for blow molding, method of blow molding and blow molded product |
| EP0663418A1 (en) * | 1993-12-28 | 1995-07-19 | Kawasaki Steel Corporation | Mixture of long glass fiber-reinforced polypropylene and polypropylene resin and moldings formed therefrom |
| JPH10139892A (en) * | 1996-11-14 | 1998-05-26 | Idemitsu Petrochem Co Ltd | Resin molding part for cooling system of internal combustion engine |
| JPH1134097A (en) * | 1997-07-15 | 1999-02-09 | Chisso Corp | Outer door handle molded product composed of long fiber glass reinforced propylene resin |
| JP2003535944A (en) * | 2000-06-07 | 2003-12-02 | バセル テクノロジー カンパニー ベスローテン フェンノートシャップ | Polyolefin compositions comprising a low viscosity propylene homopolymer, fibers and stretch nonwovens prepared therefrom. |
| JP2004231911A (en) * | 2003-02-03 | 2004-08-19 | Mitsui Chemicals Inc | Long fiber-reinforced polyolefin resin composition and method for producing the same |
| WO2007069760A1 (en) * | 2005-12-14 | 2007-06-21 | Sumitomo Chemical Company, Limited | Polyolefin resin composition, molded body made of same, and method for producing polyolefin resin composition |
| WO2010074120A1 (en) * | 2008-12-25 | 2010-07-01 | 東レ株式会社 | Fiber-reinforced propylene resin composition |
| JPWO2010074120A1 (en) * | 2008-12-25 | 2012-06-21 | 東レ株式会社 | Fiber-reinforced propylene resin composition |
| US8530565B2 (en) | 2008-12-25 | 2013-09-10 | Mitsui Chemicals, Inc. | Fiber reinforced propylene resin composition |
| JP5773654B2 (en) * | 2008-12-25 | 2015-09-02 | 東レ株式会社 | Fiber-reinforced propylene resin composition |
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| Publication number | Publication date |
|---|---|
| JP2875425B2 (en) | 1999-03-31 |
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