JPH01217049A - Method for reducing friction coefficient of rubber - Google Patents
Method for reducing friction coefficient of rubberInfo
- Publication number
- JPH01217049A JPH01217049A JP4306288A JP4306288A JPH01217049A JP H01217049 A JPH01217049 A JP H01217049A JP 4306288 A JP4306288 A JP 4306288A JP 4306288 A JP4306288 A JP 4306288A JP H01217049 A JPH01217049 A JP H01217049A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- molecular weight
- weight polyethylene
- ultra
- high molecular
- 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
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 48
- 239000005060 rubber Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims description 12
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 21
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 21
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- 238000004898 kneading Methods 0.000 claims abstract description 11
- 239000003999 initiator Substances 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 description 6
- 229920003048 styrene butadiene rubber Polymers 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- -1 polytetrafluoroethylene Polymers 0.000 description 4
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 2
- 229960002447 thiram Drugs 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ゴムの摩擦係数低下方法に関し、ゴムの摩
擦係数を低下させたものを摺動部品、ライニング材等に
適用しようとするものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for lowering the friction coefficient of rubber, and is intended to apply the reduced friction coefficient of rubber to sliding parts, lining materials, etc. be.
従来、ゴムの摩擦係数を低下させるには、カーボン等の
充填材を多量に加えるか、ガラス転移点の低いポリマー
を用いる等の方法があった。更に、別の方法としては、
ゴムにポリテトラフロロエチレン等の弗素樹脂を添加す
る方法も開発された。Conventionally, methods for lowering the friction coefficient of rubber include adding a large amount of filler such as carbon or using a polymer with a low glass transition point. Furthermore, another method is
A method of adding fluororesins such as polytetrafluoroethylene to rubber has also been developed.
従来のカーボン等の充填材を加える方法では、未だ十分
に摩擦係数を低下させることはできなかった。また、弗
素樹脂を添加する方法では、充填材とゴムとの間にイン
ターラクションがないために、長期使用において弗素樹
脂が飛散してしまい、効果が低減してしまうものであっ
た。The conventional method of adding fillers such as carbon has not yet been able to sufficiently reduce the coefficient of friction. Furthermore, in the method of adding a fluororesin, since there is no interaction between the filler and the rubber, the fluororesin scatters during long-term use, reducing the effectiveness.
そこて、ゴムの摩擦係数を十分に低下させると共に、そ
の特性を維持しつつ耐久性に富んだ製品を提供するため
のゴムの摩擦係数低下方法を提供することを目的とする
。Therefore, it is an object of the present invention to provide a method for lowering the friction coefficient of rubber, which can sufficiently lower the friction coefficient of rubber and provide a highly durable product while maintaining its characteristics.
上述の目的を達成するため、この発明は、ゴムに分子量
５０万以上の超高分子量ポリエチレンを混練してポリマ
ーアロイ化することによりゴムの摩擦係数を低下させた
ものである。In order to achieve the above object, the present invention lowers the coefficient of friction of rubber by kneading ultra-high molecular weight polyethylene with a molecular weight of 500,000 or more into rubber to form a polymer alloy.
この発明の方法により製造されたものは、摩擦係数が大
幅に低下され、かつこのような特性が長期的に維持され
る。The friction coefficient of the products manufactured by the method of the present invention is significantly reduced, and these properties are maintained over a long period of time.
以下に、この発明の好適な実施例を説明する。 Preferred embodiments of the invention will be described below.
この発明において使用されるゴムは、ブタジェンゴム、
イソプレンゴム、アクリロニトリル−ブタジェンゴム、
クロロプレンゴム、ブチルゴム、エチレンプロピレンゴ
ム（ＥＰＭＳＥＰＤＭ）、スチレンブタジェンゴム、ス
チレンブタジェンブロックポリマー、スチレンイソプレ
ンブロックポリマー、スチレンエチレンブチレンスチレ
ンブロックポリマー等の使用が可能である。特に、スチ
レンブタジェンゴムが好適であり、スチレン系ゴムの結
合スチレン量は１０〜７０％のもので、好ましくは１５
〜５０％のものが好適である。このようなゴムに混練さ
れる超高分子量ポリエチレンとしては、分子量が約５０
万以上、好ましくは約８０万〜５００万程度のものが好
適である。分子量が小さ過ぎると、ポリエチレンの粘度
が小さくなり過ぎるために良好な分散が得られず、また
分子量が５００万を超えるようなものでは、超高分子量
ポリエチレンが溶融し難く、粘度が高過ぎるため十分に
混練することができないという不都合がある。更に、ゴ
ム中の超高分子量ポリエチレンの含有率は、５重量％以
上であり、好ましくは１０重量％以上である。５重量％
以下では十分な摩擦係数の低下を図ることが難しい。The rubber used in this invention is butadiene rubber,
Isoprene rubber, acrylonitrile-butadiene rubber,
Chloroprene rubber, butyl rubber, ethylene propylene rubber (EPMSEPDM), styrene butadiene rubber, styrene butadiene block polymer, styrene isoprene block polymer, styrene ethylene butylene styrene block polymer, etc. can be used. In particular, styrene-butadiene rubber is suitable, and the amount of bound styrene in the styrene rubber is 10 to 70%, preferably 15%.
~50% is preferred. The ultra-high molecular weight polyethylene to be kneaded into such rubber has a molecular weight of about 50.
A value of 10,000 or more, preferably about 800,000 to 5,000,000 is suitable. If the molecular weight is too small, the viscosity of the polyethylene will be too low and good dispersion will not be obtained, and if the molecular weight exceeds 5 million, it will be difficult to melt the ultra-high molecular weight polyethylene and the viscosity will be too high, so it will not be possible to obtain good dispersion. There is a disadvantage that it cannot be kneaded. Further, the content of ultra-high molecular weight polyethylene in the rubber is 5% by weight or more, preferably 10% by weight or more. 5% by weight
Below this, it is difficult to achieve a sufficient reduction in the coefficient of friction.
ゴムと超高分子量ポリエチレンとの配合物には、加工性
向上、増量、補強、耐候性向上、耐酸化劣化防止性向上
等の目的により各種配合剤を添加することが可能である
。例えば、カーボンブラック、タルク、シリカ、プロセ
スオイル、ステアリン酸、マグネシア、ガラス繊維、Ｓ
ｉＣやアルミナ等のセラミック、アラミド繊維、炭酸カ
ルシウム、炭酸マグネシウム、クレー、発泡剤、酸化ア
ンチモン系等の難燃剤、酸化チタン等の着色剤及び顔料
等がある。これらの配合剤は、ゴムと超高分子量ポリエ
チレンとの合計量に対して１〜１００重量部程度嶺部す
ることが可能である。Various compounding agents can be added to the blend of rubber and ultra-high molecular weight polyethylene for purposes such as improving processability, increasing weight, reinforcing, improving weather resistance, and improving oxidative deterioration resistance. For example, carbon black, talc, silica, process oil, stearic acid, magnesia, glass fiber, S
Examples include ceramics such as iC and alumina, aramid fibers, calcium carbonate, magnesium carbonate, clay, blowing agents, flame retardants such as antimony oxide, colorants such as titanium oxide, and pigments. These compounding agents can be added in an amount of about 1 to 100 parts by weight based on the total amount of rubber and ultra-high molecular weight polyethylene.
ゴムに分子量５０万以上の超高分子量ポリエチレンを混
練する際、ラジカル開始剤及び架橋剤の存在下で混線を
行うことにより、ゴムの動的架橋と超高分子量ポリエチ
レンの主鎖切断・ラジカル発生が同時に起こることによ
りゴムと超高分子量ポリエチレンが均一に分散し、両ポ
リマーの間に化学的結合が起こると推測され、これによ
りゴムの摩擦係数が大幅に低下される一方、この特性が
長期的に維持されるものと考えられる。使用されるラジ
カル開始剤としては、ジベンゾチアジルジサルファイド
（ＤＭ）、等のチアゾール系、テトラメチルチウラムジ
サルファイド等のチウラム系、ジフェニルグアニジン等
のグアニジン系開始剤、亜鉛華等があり、これらを混合
して用いても差し支えない。架橋剤としてはイオウ、４
・４゛ −ジチオービスージモルフオリン等のイオウ系
架橋剤、ジクミルパーオキサイド等の過酸化物系架橋剤
等がある。When kneading ultra-high molecular weight polyethylene with a molecular weight of 500,000 or more into rubber, mixing in the presence of a radical initiator and cross-linking agent will result in dynamic cross-linking of the rubber, main chain scission of the ultra-high molecular weight polyethylene, and generation of radicals. It is assumed that this simultaneous event causes uniform dispersion of the rubber and ultra-high molecular weight polyethylene, and chemical bonding occurs between the two polymers, which significantly reduces the friction coefficient of the rubber, but also reduces the long-term effects of this property. It is assumed that this will be maintained. Examples of radical initiators used include thiazole initiators such as dibenzothiazyl disulfide (DM), thiuram initiators such as tetramethylthiuram disulfide, guanidine initiators such as diphenylguanidine, and zinc white. They may be used in combination. As a crosslinking agent, sulfur, 4
- Sulfur-based crosslinking agents such as 4'-dithiobis dimorpholine, peroxide-based crosslinking agents such as dicumyl peroxide, etc.
ゴムと超高分子量ポリエチレン、ラジカル開始剤、架橋
剤、更には配合剤を混練するには、バンバリー、ブラベ
ンダ、ニーダ−ルーダ−等のスクリュータイプの混練機
を使用して混練することができる。混純に際しては、最
初に超高分子量ポリエチレンを軟化点以上（１３５℃）
に予熱攪拌し、次いでプロゴム（架橋剤入り練りゴム）
を加える。To knead the rubber, ultra-high molecular weight polyethylene, radical initiator, crosslinking agent, and further compounding agents, a screw type kneader such as Banbury, Brabender, Kneider-Ruder, etc. can be used. When mixing, first heat the ultra-high molecular weight polyethylene to a temperature above its softening point (135°C).
Preheat and stir, then add Pro Rubber (kneaded rubber with cross-linking agent)
Add.
プロゴムの発熱とシェアーで超高分子量ポリエチレンが
溶融し、良好な分散がおこなわれ、ポリマーアロイ化が
良好に行われる。なお、ゴムとしては、ノンプロゴム（
架橋剤の入っていないゴム）を用い、混練後架橋剤を加
え架橋してもかまわないが、好ましくは前述の如くプロ
ゴム（架橋割入リゴノ、）を用いるのがよい。この理由
としては、プロゴムを用いた場合は混練時ゴムが動的架
橋し、粘度が上昇してその結果超高分子量ポリエチレン
にシェアーがかかり、両者の分散がより良好なものとな
るからと考えられる。このときの練り温度は、１４０〜
１８０℃であり、好ましくは１５０〜１７０℃程度であ
る。このような練り温度の設定により、ゴムの架橋速度
と分散効率のバランスがとれる。練り時間は、通常１．
５分〜３０分程度である。The ultra-high molecular weight polyethylene is melted by the heat generation and shear of the pro-rubber, resulting in good dispersion and successful polymer alloying. In addition, the rubber used is non-pro rubber (
Although a crosslinking agent (rubber containing no crosslinking agent) may be used for crosslinking by adding a crosslinking agent after kneading, it is preferable to use a pro rubber (rubber containing a crosslinking agent) as described above. The reason for this is thought to be that when pro-rubber is used, the rubber undergoes dynamic cross-linking during kneading, increasing its viscosity and, as a result, applying shear to the ultra-high molecular weight polyethylene, resulting in better dispersion of both. . The kneading temperature at this time is 140~
The temperature is 180°C, preferably about 150 to 170°C. By setting the kneading temperature in this manner, the rubber crosslinking speed and dispersion efficiency can be balanced. The kneading time is usually 1.
It takes about 5 to 30 minutes.
次に、具体例を示す。ゴムとしては、表ＩＧこ示すよう
なスチレンブタジェンゴム（ＳＢＲ）を使用した。ここ
で、ラジカル開始剤としてＧよ、ジベンゾチアジルジサ
ルファイド（ＤＭ） 、デイフェニルグアニジン（ＤＰ
Ｇ）、亜鉛華の混合物を用いた。このＳＢＲ配合物と平
均分子量３００万の超高分子量ポリエチレンとを混練機
（ブリベンダ）にて１６０℃で５分混練することにより
、ポリマ−７ロイ化を行った。このようにして得られた
配合物を、１９０℃、１０分間加熱加圧することＧこよ
り得られたシートの物性を表２に示す。Next, a specific example will be shown. Styrene butadiene rubber (SBR) as shown in Table IG was used as the rubber. Here, G, dibenzothiazyl disulfide (DM), diphenylguanidine (DP) are used as radical initiators.
G), a mixture of zinc white was used. This SBR blend and ultra-high molecular weight polyethylene having an average molecular weight of 3 million were kneaded at 160° C. for 5 minutes in a kneader (Bribender) to form a polymer 7-loy. Table 2 shows the physical properties of the sheet obtained by heating and pressing the thus obtained composition at 190° C. for 10 minutes.
表 １
表２中ｒｓＢＲＪはゴム、ｒＵＨＭＰＥＪは超高分子量
ポリエチレン、ｒＴｂＪは引張り破断強度、ｒＥｂＪは
引張り破断伸び、ｒ４５ｃＪは鉄、ｒｓＵｓＪはステン
レスを示す。Table 1 In Table 2, rsBRJ indicates rubber, rUHMPEJ indicates ultra-high molecular weight polyethylene, rTbJ indicates tensile strength at break, rEbJ indicates tensile elongation at break, r45cJ indicates iron, and rsUsJ indicates stainless steel.
本結果から明らかなように、この発明の摩擦係数低下方
法を用いることにより、ゴムの摩擦係数の大幅な低下を
可能とした。As is clear from the results, by using the method for reducing the coefficient of friction of the present invention, it was possible to significantly reduce the coefficient of friction of rubber.
以上説明したように、この発明によれば、ゴムに分子量
５０万以上の超高分子量ポリエチレンを混練してポリマ
ーアロイ化することによりゴムのＷＪ擦係数を低下させ
たので、ゴムの大幅な摩擦係数の低下並びにその特性を
維持したまま長期間の使用が可能となる製品の製造が可
能となった。また、このような方法により得られた低摩
擦のゴムは、タイヤ、ベルト、ホース、各種摺動部品、
各種ライニング材等に使用して有効である。As explained above, according to the present invention, the WJ friction coefficient of the rubber is lowered by kneading ultra-high molecular weight polyethylene with a molecular weight of 500,000 or more into the rubber to form a polymer alloy. It has become possible to manufacture products that can be used for long periods of time while maintaining their properties. In addition, the low-friction rubber obtained by this method can be used for tires, belts, hoses, various sliding parts,
Effective for use in various lining materials, etc.
出願人 株式会社 ブリデストン 代理人 弁理士 増 １）竹 夫Applicant Brideston Co., Ltd. Agent Patent Attorney Increase 1) Takeo
Claims (1)
を混練してポリマーアロイ化することによりゴムの摩擦
係数を低下させたことを特徴とするゴムの摩擦係数低下
方法。 ２、ゴムと超高分子量ポリエチレンとの混練をラジカル
開始剤及び架橋剤の存在下で行うことを特徴とする請求
項１項に記載のゴムの摩擦係数低下方法。[Scope of Claims] 1. A method for lowering the coefficient of friction of rubber, characterized in that the coefficient of friction of rubber is lowered by kneading ultra-high molecular weight polyethylene with a molecular weight of 500,000 or more into rubber to form a polymer alloy. 2. The method for lowering the coefficient of friction of rubber according to claim 1, wherein the kneading of the rubber and ultra-high molecular weight polyethylene is carried out in the presence of a radical initiator and a crosslinking agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4306288A JPH01217049A (en) | 1988-02-25 | 1988-02-25 | Method for reducing friction coefficient of rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4306288A JPH01217049A (en) | 1988-02-25 | 1988-02-25 | Method for reducing friction coefficient of rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01217049A true JPH01217049A (en) | 1989-08-30 |
Family
ID=12653378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4306288A Pending JPH01217049A (en) | 1988-02-25 | 1988-02-25 | Method for reducing friction coefficient of rubber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01217049A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06340757A (en) * | 1990-08-22 | 1994-12-13 | Gencorp Inc | Solventless abrasion-resistant low-friction film for elastomer substrate |
| WO2001014142A1 (en) * | 1999-08-20 | 2001-03-01 | Sealed Air Corporation (Us) | Polyolefin foam/film composite structure and method for making same |
| US6492013B1 (en) | 2001-03-28 | 2002-12-10 | Sealed Air Corporation | Foam composite structure comprising a blend of polypropylene and homogeneous ethylene/alpha-olefin copolymer |
| JP2006241348A (en) * | 2005-03-04 | 2006-09-14 | Yokohama Rubber Co Ltd:The | Rubber composition for tire |
| JP2015134930A (en) * | 2015-03-12 | 2015-07-27 | テクノポリマー株式会社 | Part for contact made from thermoplastic resin composition having reduced creaking sound |
-
1988
- 1988-02-25 JP JP4306288A patent/JPH01217049A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06340757A (en) * | 1990-08-22 | 1994-12-13 | Gencorp Inc | Solventless abrasion-resistant low-friction film for elastomer substrate |
| WO2001014142A1 (en) * | 1999-08-20 | 2001-03-01 | Sealed Air Corporation (Us) | Polyolefin foam/film composite structure and method for making same |
| US6391438B1 (en) | 1999-08-20 | 2002-05-21 | Sealed Air Corporation | Polyolefin foam/film composite structure and method for making same |
| US6492013B1 (en) | 2001-03-28 | 2002-12-10 | Sealed Air Corporation | Foam composite structure comprising a blend of polypropylene and homogeneous ethylene/alpha-olefin copolymer |
| JP2006241348A (en) * | 2005-03-04 | 2006-09-14 | Yokohama Rubber Co Ltd:The | Rubber composition for tire |
| JP2015134930A (en) * | 2015-03-12 | 2015-07-27 | テクノポリマー株式会社 | Part for contact made from thermoplastic resin composition having reduced creaking sound |
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