| 摘要 |
PURPOSE:To obtain a resin composition excellent in mechanical strength and heat resistance together with sliding properties by blending a glass fiber, a particulate phenol resin and a fluororesin with a polyphenylene sulfide resin. CONSTITUTION:100 pts.wt. polyphenylene sulfide resin is blended with 50-100 pts.wt. glass fiber, 10-30 pts.wt. particulate phenol resin and 5-15 pts.wt. fluororesin. As the polyphenylene sulfide resin, to which there is no special limit, one having a melt viscosity of about 3,000-10,000 P is preferred because it exhibits a good balance between physical properties and workability. As the glass fiber, to which there is no special limit, one having a particle diameter of about 11-15 mum is preferred in the case where all of bending strength, compression strength and sliding properties are important. By 'the particulate phenol resin' is meant one which is obtained by burning a phenol/formaldehyde resin obtained by emulsion polymerization at about 300-1,000 deg.C in the absence of oxygen. As the fluororesin, tetrafluoroethylene which is easily available is preferred. |
