JPS61291627A - Fiber-reinforced thermoplastic elastomer parts for use in vehicle - Google Patents

Fiber-reinforced thermoplastic elastomer parts for use in vehicle

Info

Publication number
JPS61291627A
JPS61291627A JP13089285A JP13089285A JPS61291627A JP S61291627 A JPS61291627 A JP S61291627A JP 13089285 A JP13089285 A JP 13089285A JP 13089285 A JP13089285 A JP 13089285A JP S61291627 A JPS61291627 A JP S61291627A
Authority
JP
Japan
Prior art keywords
parts
resistance
chlorinated polyethylene
oil
fiber
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
JP13089285A
Other languages
Japanese (ja)
Inventor
Hiroshi Yoshida
宏 吉田
Rentaro Kato
錬太郎 加藤
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP13089285A priority Critical patent/JPS61291627A/en
Publication of JPS61291627A publication Critical patent/JPS61291627A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain the titled elastomer parts of high elastic modulus with outstanding oil and heat resistances, by forming with a composite material made by reinforcing a base layer made of chlorinated polyethylene with polyamide short fibers. CONSTITUTION:The objective elastomer parts for vehicles can be obtained by forming with a material made by incorporating and dispersing (A) a chlorinated polyethylene with a chlorine content 30-40% with (B) polyamide short fibers of a length 2-6mm and 0.5-10de. Said vehicle parts thus produced, due to especially high oil resistance for the component B with its adhesiveness to the component A extremely good, is outstanding in oil and heat resistances, furthermore, being greater in rigidity than that of conventional parts, thus capable of light-gage-light weight design, good in compression set characteristics, and also highly reliable in terms of sealability, etc.

Description

【発明の詳細な説明】 LLJ、立丑朋金1 本発明は、車輌用ゴム質部品に係り、特に導油管、調時
ベルト、覆筒(boot) 、ダイアフラム、防振ゴム
等の車輌用繊維強化熱可塑性エラストマー部品に関する
ものである。
[Detailed Description of the Invention] LLJ, Tomokin Tatsuyu 1 The present invention relates to rubber parts for vehicles, and in particular to vehicle fibers such as oil guide pipes, timing belts, boot tubes, diaphragms, and anti-vibration rubber. It relates to reinforced thermoplastic elastomer parts.

およびその。and that.

繰り返し変形に耐える車輌用エラストマー部品の剛性を
向上させるために、従来では、エラストマー基体層に長
繊維、布等を埋設する手法が採用されている。ところが
、それ等の手法では、成形工程、または加硫工程におい
て、エラストマーと前記強化材を組合わせているため、
工数増しとなって、生産性が損なわれる。
In order to improve the rigidity of elastomer parts for vehicles that can withstand repeated deformation, a method of embedding long fibers, cloth, etc. in an elastomer base layer has conventionally been adopted. However, in those methods, the elastomer and the reinforcing material are combined in the molding or vulcanization process, so
This increases man-hours and reduces productivity.

しかるに、近年採用されつつある短繊維強化法によれば
、成形工程に先立つ混線工程で、エラストマー中に短M
illiを添加することができ、工数増しとなる様な特
別な手間を必要とせず、生産性が損なわれることはない
。この場合。補強効果を得るには、強化用短繊維とエラ
ストマーとの強力なる密着性が要求され、耐油性、耐熱
性、耐薬品性等の優れた特性を備えたエラストマーと、
強化繊維との好適な組合わせが摸索されていた。
However, according to the short fiber reinforcement method that has been adopted in recent years, short M
illi can be added, no special effort such as an increase in man-hours is required, and productivity is not impaired. in this case. In order to obtain the reinforcing effect, strong adhesion between the reinforcing short fibers and the elastomer is required, and the elastomer has excellent properties such as oil resistance, heat resistance, and chemical resistance.
Suitable combinations with reinforcing fibers have been explored.

p    ゛  ための  ゛よ 本発明の目的は、クロロブレン・ゴムと同等以上の耐油
性、耐熱性、耐薬品性、耐オゾン性を有する車輌用高剛
性エラストマー部品を提供する点にある。
An object of the present invention is to provide a high-rigidity elastomer part for vehicles that has oil resistance, heat resistance, chemical resistance, and ozone resistance equivalent to or better than chloroprene rubber.

この目的は、塩素化ポリエチレン製基体層(マトリック
ス)をポリアミド製短!l維で複合強化した材料をもっ
て車輌用部品を形成することによって達成される。
This purpose is to shorten the base layer (matrix) made of chlorinated polyethylene and made of polyamide! This is accomplished by forming vehicle parts from fiber-reinforced materials.

ポリエチレンを塩素化して得られる塩素化ポリエチレン
(CPE)は、塩素の含有量によって、その性質が変化
し、ゴム質のものは、塩素含有率が30%〜40%であ
る。その特徴は、耐油性、耐熱性、耐薬品性、耐候性、
耐オゾン性が優れるとともに、優れた引裂抵抗性、屈曲
亀裂抵抗性を示す点である。この様な性質は、車輌用ゴ
ム質部品として好適であり、該塩素化ポリエチレンを強
化するには、ポリアミド(商品名:ナイロン)1短1l
it11が最も適している。他の有機繊維、例えばポリ
エステルは、塩素化ポリエチレンとの密着性が悪いため
、補強効果が低く、天然繊維は、耐油性、耐熱性、耐オ
ゾン性が悪く、かつ無機繊維は、塩素化ポリエチレンと
の密着性が悪いのみならず、許容伸び率が小さく、容易
に破断するという不具合があり、いずれも採用し難い。
Chlorinated polyethylene (CPE) obtained by chlorinating polyethylene changes its properties depending on the chlorine content, and rubbery ones have a chlorine content of 30% to 40%. Its characteristics are oil resistance, heat resistance, chemical resistance, weather resistance,
It has excellent ozone resistance, as well as excellent tear resistance and flex crack resistance. Such properties are suitable for use as rubber parts for vehicles, and to strengthen the chlorinated polyethylene, polyamide (trade name: nylon) 1 short 1 liter is used.
it11 is most suitable. Other organic fibers, such as polyester, have poor adhesion to chlorinated polyethylene and therefore have a low reinforcing effect, natural fibers have poor oil resistance, heat resistance, and ozone resistance, and inorganic fibers have poor adhesion to chlorinated polyethylene. Not only do they have poor adhesion, but they also have a small allowable elongation rate and break easily, making them difficult to use.

それに対し、ポリアミド411fは、特に耐油性が層れ
ている上、塩素化ポリエチレンとの密着性が極めて良好
である。そして、使用するポリアミド製短繊維の寸法は
、長さ2〜6#ll11、径0.5〜10D(デニール
)(但し、1Dは、長さ450m (7) l mが5
0Rgである繊維径を意味する)であるのが望ましい。
On the other hand, polyamide 411f is particularly oil resistant and has extremely good adhesion to chlorinated polyethylene. The dimensions of the short polyamide fibers used are length 2 to 6#11, diameter 0.5 to 10D (denier) (however, 1D is 450m in length (7) lm is 5
(meaning a fiber diameter that is 0Rg) is desirable.

その理由は、長さが、2#未満であると、剛性が低下し
、6rnInを超えると、原材料に繊維を添加して混練
りを行う際に破断して補強効果が少なくなり、かつ破断
することなく混入されたとしても、成形品に力を印加し
た場合、amに応力集中が生じ易く、成形品の破断伸び
率が低下するからであり、径が、0.5D未満では、混
練りの際に繊維が破断し易く、10[)を超えると、混
練りの−に繊維が分散し難くなり、成形品の耐疲労性が
悪化するからである。
The reason for this is that if the length is less than 2#, the rigidity will decrease, and if it exceeds 6rnIn, it will break when adding fiber to the raw material and kneading it, reducing the reinforcing effect and causing it to break. This is because even if the molded product is mixed in without being mixed in, when force is applied to the molded product, stress concentration is likely to occur in the am, and the elongation at break of the molded product decreases.If the diameter is less than 0.5D, the kneading This is because the fibers tend to break during the process, and if it exceeds 10[), it becomes difficult to disperse the fibers during kneading, and the fatigue resistance of the molded product deteriorates.

墓辰■」 クロロプレン・ゴム(材料■:比較例)、クロロプレン
・ゴム100重量部に対して5重量部のポリアミド(ナ
イロン6)1短[t(長さ4M、径2D)を添加、分散
せしめたちのく材料■:比較例)、および塩素化ポリエ
チレン(大阪曹達@製、商品名:  H135)100
重量部に対して5重量部のポリアミド(ナイロン6)製
知繊Iff(長さ4m、径2D>を添加、分散せしめた
もの(材料■:木発明例)を用意した。
Chloroprene rubber (material ■: comparative example), 5 parts by weight of polyamide (nylon 6) 1 short [t (length 4M, diameter 2D) was added and dispersed in 100 parts by weight of chloroprene rubber. Tachinoku material (Comparative example), and chlorinated polyethylene (manufactured by Osaka Soda@, product name: H135) 100
A polyamide (nylon 6) intelligent fiber Iff (length 4 m, diameter 2D>) was added and dispersed in an amount of 5 parts by weight (Material ■: wood invention example).

材料工、■、■の25%引張り弾性率(lci / c
i )を調べ、表1の結果を得た。
25% tensile modulus of material engineering, ■, ■ (lci/c
i) and obtained the results shown in Table 1.

表  1 表1によれば、材料■、■の対比から、基体層にポリア
ミド製短m雑を添加、分散せしめることによって弾性率
が向上することが判り、材料■、■の対比から、塩素化
ポリエチレンとポリアミド製短繊維の密着性が極めて優
れていることが判る。
Table 1 According to Table 1, from the comparison of materials ■ and ■, it can be seen that the elastic modulus is improved by adding and dispersing polyamide short material in the base layer, and from the comparison of materials ■ and ■, chlorination It can be seen that the adhesion between polyethylene and polyamide short fibers is extremely excellent.

民1璽2 前記材料■、■につき、A:耐熱限界温度、B:耐油性
(エンジン・オイルに対する耐性)、C:耐オゾン性、
D=圧縮永久歪を調べ、表2の結果を得た。
Civil 1st Edition 2 For the above materials ■ and ■, A: Heat resistance limit temperature, B: Oil resistance (resistance to engine oil), C: Ozone resistance,
D = Compression set was investigated and the results shown in Table 2 were obtained.

表  2 但し、各試験(A、B、C,D)の条件は、下記の通、
りである。
Table 2 However, the conditions for each test (A, B, C, D) are as follows:
It is.

A:500時間の加熱で、引張り破断時の伸び率が50
%低下する温度。
A: After heating for 500 hours, the elongation rate at tensile break is 50
% lower temperature.

B:100℃のエンジン・オイル中に70時間浸漬させ
た後の容積変化。
B: Volume change after immersion in engine oil at 100°C for 70 hours.

Cニオシン濃度50pphm気温40℃中で、0〜40
%の伸び率、1ヘルツ(Hz)の動的伸長を行う。
C niosin concentration 50pphm, temperature 40℃, 0 to 40
% elongation and dynamic stretching at 1 hertz (Hz).

D:120℃で70時間に亘り荷重を印加する。D: A load is applied at 120° C. for 70 hours.

表2によれば、本発明例である材料■は、I!維強化さ
れないクロロプレン・ゴムである材料■に比して、耐熱
性、耐油性、耐オゾン性、耐圧縮永久歪性が優れている
ことが判る。
According to Table 2, the material ■, which is an example of the present invention, is I! It can be seen that this material has superior heat resistance, oil resistance, ozone resistance, and compression set resistance compared to material (2), which is chloroprene rubber that is not reinforced with fibers.

試】目九旦 塩素化ポリエチレン(大阪曹達■製、商品名H135)
100重量部に対するポリアミド(ナイロン6)製mm
雑(長さ4姻、径2D)の添加比率を変化させた試験片
を用意し、それ等の25%引張り弾性率と破断伸び率と
の関係を第1図に示した。
Test] Mekudan chlorinated polyethylene (manufactured by Osaka Soda, trade name H135)
Made of polyamide (nylon 6) mm per 100 parts by weight
Test specimens were prepared in which the addition ratio of various materials (length 4, diameter 2D) was varied, and the relationship between their 25% tensile modulus and elongation at break is shown in FIG.

第1図によれば、短IINの添加量を変えることによっ
て、材料の弾性率および破断伸び率を調整し得ることが
理解され、用途に応じた材料特性を付与することが可能
である。
According to FIG. 1, it is understood that by changing the amount of short IIN added, the elastic modulus and elongation at break of the material can be adjusted, and it is possible to impart material properties depending on the application.

なお、25%引張り弾性率が20に9/ci程度ならば
、通常のゴム材でも得られること、および25%引張り
弾性率が150ffg/iを超えると、破断伸び率が5
0%以下となって好ましくないことにより本発明材は、
25%引張り弾性率20〜150に9/cdの範囲内の
ものとして提供される。
It should be noted that if the 25% tensile modulus is about 20 to 9/ci, it can be obtained with ordinary rubber materials, and if the 25% tensile modulus exceeds 150ffg/i, the elongation at break will be 5.
The material of the present invention has
The 25% tensile modulus is provided in the range of 20 to 150 to 9/cd.

W1里A 第2図に示す前輪駆動車1の駆動軸2部における笠速継
手に装着される覆筒(boot) 3 (第3図参照)
を、前記材料工、■で形成し、回転速度に対応した放射
方向への膨張量を調べ、その結果を第4図に示した。
W1riA Boot 3 attached to the Kasaya joint on the drive shaft 2 of the front wheel drive vehicle 1 shown in Fig. 2 (see Fig. 3)
was formed using the above-mentioned material technique (2), and the amount of expansion in the radial direction corresponding to the rotational speed was examined, and the results are shown in FIG.

第4図によれば、材料■に比して剛性の大きな材料■(
本発明例)では、膨張Rが十分少ないことが理解され、
覆筒3の薄肉化(軽量化)を計り得るとともに、車輌構
成部材間股上の自由度を向上させることも可能である。
According to Figure 4, material ■(
It is understood that in the present invention example), the expansion R is sufficiently small,
It is possible to make the cover tube 3 thinner (lighter), and also to improve the degree of freedom in the crotch position between the vehicle component members.

11立羞】 以上の説明から明らかな様に、本発明の車輌用IIN強
化熱可塑性エラストマー部品は、塩素化ポリエチレン製
基体層をポリアミド製知繊維で複合強化したものである
から、耐油性、耐熱性に優れるのみならず、従来品に比
して剛性が大きく、薄肉軽R化設計が可能となり、圧縮
永久歪特性も良好であり、密封性等の信頼性が高い。
As is clear from the above explanation, the IIN-reinforced thermoplastic elastomer parts for vehicles of the present invention have a chlorinated polyethylene base layer compositely reinforced with polyamide known fibers, and therefore have good oil resistance and heat resistance. Not only does it have excellent properties, but it also has greater rigidity than conventional products, allowing for a thinner and lighter radius design, good compression set characteristics, and high reliability in terms of sealing performance, etc.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明例としてのエラストマー部品の25%引
張り弾性率と破断伸び率の関係を示すグラフ、第2図は
等連継手用覆筒を備えた前輪駆動車の概略図、第3図は
該覆筒の断面図、第4図はクロロブレン・ゴム製の該覆
筒および本発明例としての該覆筒における回転速度に対
する膨張量の関係を示すグラフである。 1・・・前輪駆動車、2・・・駆動軸、3・・・覆筒。
Fig. 1 is a graph showing the relationship between the 25% tensile modulus of elasticity and the elongation at break of an elastomer component as an example of the present invention, Fig. 2 is a schematic diagram of a front wheel drive vehicle equipped with a cover tube for a constant joint, and Fig. 3 4 is a cross-sectional view of the cover tube, and FIG. 4 is a graph showing the relationship between the rotational speed and the amount of expansion in the cover tube made of chloroprene rubber and the cover tube as an example of the present invention. 1...Front wheel drive vehicle, 2...Drive shaft, 3... Cover tube.

Claims (1)

【特許請求の範囲】[Claims] 塩素化ポリエチレン製基体層をポリアミド製短繊維で複
合強化して成り、耐油性、耐熱性が優れ、弾性率の大き
な車輌用繊維強化熱可塑性エラストマー部品。
A fiber-reinforced thermoplastic elastomer part for vehicles with excellent oil resistance, heat resistance, and high elastic modulus, consisting of a chlorinated polyethylene base layer composite reinforced with short polyamide fibers.
JP13089285A 1985-06-18 1985-06-18 Fiber-reinforced thermoplastic elastomer parts for use in vehicle Pending JPS61291627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13089285A JPS61291627A (en) 1985-06-18 1985-06-18 Fiber-reinforced thermoplastic elastomer parts for use in vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13089285A JPS61291627A (en) 1985-06-18 1985-06-18 Fiber-reinforced thermoplastic elastomer parts for use in vehicle

Publications (1)

Publication Number Publication Date
JPS61291627A true JPS61291627A (en) 1986-12-22

Family

ID=15045150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13089285A Pending JPS61291627A (en) 1985-06-18 1985-06-18 Fiber-reinforced thermoplastic elastomer parts for use in vehicle

Country Status (1)

Country Link
JP (1) JPS61291627A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470823A2 (en) * 1990-08-07 1992-02-12 Honda Giken Kogyo Kabushiki Kaisha Boot for a universal joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470823A2 (en) * 1990-08-07 1992-02-12 Honda Giken Kogyo Kabushiki Kaisha Boot for a universal joint

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