摘要:
A resin composition which gives a molded article having both of excellent mechanical properties and abrasion resistance with maintaining excellent thermal resistance, chemical resistance, surface characteristics (non-sticking property, low friction property), electric insulating property, etc. of a fluorine-containing polymer; a molded article obtained from the resin composition; and a method for producing the molded article are provided. The resin composition comprises: (A-1) a fluorine-containing ethylenic polymer prepared by copolymerizing at least one of fluorine-containing monomers having any one of hydroxyl, carboxyl, a carboxylate salt group, a carboxylate ester group or epoxy in an amount of 0.05 to 30% by mole on the basis of the total amount of monomers, and (B-1) an inorganic filler or a non-meltable organic filler, wherein said resin composition comprises 1 to 99.5% by weight of the component (A-1) and 0.5 to 99% by weight of the component (B-1).
摘要:
A resin composition which gives a molded article having both of excellent mechanical properties and abrasion resistance with maintaining excellent thermal resistance, chemical resistance, surface characteristics (non-sticking property, low friction property), electric insulating property, etc. of a fluorine-containing polymer; a molded article obtained from the resin composition; and a method for producing the molded article are provided. The resin composition comprises: (A-1) a fluorine-containing ethylenic polymer prepared by copolymerizing at least one of fluorine-containing monomers having any one of hydroxyl, carboxyl, a carboxylate salt group, a carboxylate ester group or epoxy in an amount of 0.05 to 30% by mole on the basis of the total amount of monomers, and (B-1) an inorganic filler or a non-meltable organic filler, wherein said resin composition comprises 1 to 99.5% by weight of the component (A-1) and 0.5 to 99% by weight of the component (B-1).
摘要:
A non-sticking sliding part molding Composition comprising a mixture of a fluororesin and a thermoplastic resin other than fluororesin and a fibrous filler, said mixture and said fibrous filler accounting for 70 to 95 weight % and 5 to 30 weight %, respectively, and said thermoplastic resin other than fluororesin occurring in a proportion of 60 to 100 parts by weight based on t00 parts by weight of said fluororesin. The object is to provide a non-sticking sliding part molding composition which is not only fully possessed of the fundamental properties required of sliding parts but also has a well-balanced assortment of hardness, deflection under load, creep resistance, slidability, moldability, and toner-repellent property, thus surpassing the prior art.
摘要:
The present invention relates to a PPS resin composition comprising a matrix of the PPS which is filled with a PTFE powder baked at a temperature not less than a melting point thereof and having a number-average molecular weight of not less than 1.5 million or PTFE fine particles having an average particle size of 0.05 to 1 .mu.m and comprising a fibrillating core portion of a high molecular weight PTFE with a number-average molecular weight of not less than 1.5 million and a non-fibrillating shell portion of a low molecular weight PTFE so that a content thereof is 40 to 80% by weight in the composition, and also relates to a process for preparing said PPS resin composition, which is characterized in that melting and kneading are carried out at a temperature from a temperature of not less than a melting point of PPS to a temperature of not more lower than a melting point of a high molecular weight PTFE. The polyphenylene sulfide resin composition of the present invention presents sliding properties such as excellent friction and wear resistance which sliding materials mainly containing usual polytetrafluoroethylene have as well as properties of polyphenylene sulfide such as injection moldability and high mechanical properties.
摘要:
A resin composition for a sliding part comprising 5 to 45% by volume of a carbon fiber, 1 to 25 by volume of a metal powder and a remaining amount of a melt-processable fluorine-containing resin. A molded article made of the composition has a low friction coefficient having a narrow fluctuation range and has an excellent abrasion resistance to a soft metal.
摘要:
An injection moldable fluorine-containing meltable resin composition comprising 70 to 98 wt. % of a fluorine-containing meltable resin, and 2 to 30 wt. % of a needle-shape material having an average diameter of 3 &mgr;m or less, an average aspect ratio of between 10 and 100, and Mohs hardness of between 5 and 8, which composition has good sliding and sealing properties and excellent moldability, in particular, moldability of thin wall articles.
摘要:
The structural member of the present invention comprises (A) a layer which comprises a fluorine-containing polymer and does not contain an adhesive material other than the fluorine-containing polymer substantially and (B) a substrate, in which the layer (A) is adhered directly to the substrate (B) without interposing a binder therebetween and a longitudinal shear strength between the layer (A) comprising a fluorine-containing polymer and the substrate (B) is not less than 0.98 N/mm2 at 150° C. The structural member comprising a fluorine-containing polymer and a substrate adhered to each other, particularly the structural member having improved adhesive strength at high temperature and the sliding material produced by using the structural member are provided.
摘要翻译:本发明的结构体包含(A)包含含氟聚合物的层,基本上不含含氟聚合物以外的粘合剂材料,(B)基材,其中层(A)为 在不插入粘合剂的情况下直接粘附到基板(B)上,并且包括含氟聚合物的层(A)和基板(B)之间的纵向剪切强度在150°时不小于0.98N / mm 2 C.包含含氟聚合物和彼此粘合的基材的结构件,特别是具有改善的高温粘合强度的结构件和使用结构件制成的滑动材料。
摘要:
To provide a fluorine-containing resin composition useful as a molding material for parts of electronic and electrical equipment which assures well-balanced enhancement of dielectric property, heat resistance, mold-processability (precise processability) and mechanical properties and the parts of electronic and electrical equipment. The fluorine-containing resin composition for parts of electronic and electrical equipment comprises 70 to 95% by weight of (I) fluorine-containing resin mixture comprising (a) a fluorine-containing resin containing polytetrafluoroethylene not to be fibrillated and (b) a thermoplastic resin other than the fluorine-containing resin and 5 to 30% by weight of (II) a metal compound whisker having a single bond strength of not less than 190 KJ/mol calculated from a dissociation energy of bond between a metal element and oxygen. The parts of electronic and electrical equipment which are obtained from the composition have a dielectric constant of not more than 3.5.
摘要:
The invention provides a polymer processing additive which, when added to a melt-processable resin, is highly effective in improving the moldability of the resin, and a molding composition containing the polymer processing additive, among others. This invention is related to a polymer processing additive comprising a fluoroelastomer subjected to heat treatment with an alkali metal inorganic salt or alkaline earth metal inorganic salt added thereto.
摘要:
A polymer composition of matter is disclosed which includes a thermoplastic polymer and a fluorine-containing polymer. The thermoplastic polymer is an amorphous non-fluorinated thermoplastic polymer or a crystalline non-fluorinated thermoplastic polymer with a melting point of 180° C. or higher. The fluorine-containing polymer has a zero shear viscosity at 340° C. of 0.2 Pa.s or greater and less than 5000 Pa.s, and is present to the extent of 0.005-2 mass % of the total of the thermoplastic polymer and the fluorine-containing polymer.