首页>
外国专利>
MECHANICALLY COMPATIBLE, POLYPHASE BLEND OF POLY(VINYL-CHLORIDE), CHLORINATED POLYOLEFIN, POLYOLEFIN, AND GRAFT COPOLYMER OF POLYOLEFIN, AND RIGID FIBER-REINFORCED COMPOSITE THEREOF
MECHANICALLY COMPATIBLE, POLYPHASE BLEND OF POLY(VINYL-CHLORIDE), CHLORINATED POLYOLEFIN, POLYOLEFIN, AND GRAFT COPOLYMER OF POLYOLEFIN, AND RIGID FIBER-REINFORCED COMPOSITE THEREOF
展开▼
机译:机械相容的聚(氯乙烯),聚氯乙烯,聚烯烃和接枝共聚物的聚合物,以及刚性的纤维增强复合材料
展开▼
页面导航
摘要
著录项
相似文献
摘要
Shaped articles which have excellent solvent resistance and resistance to fatty acids are formed from a thermoplastic polyblend of poly(vinyl chloride) (PVC), chlorinated polyethylene (CPE), polyolefin (PO), and a graft copolymer of a polyolefin (PO-G). The thermoplastic polyblend contains a PO and PO-G (PO/PO-G) as a first continuous single phase, PVC and CPE as the second and third dispersed phases, and the relative amounts of the components are chosen so that there is, at most, an equal amount by weight of PO and PO-G each of which may be present in an amount as high as 40 parts by weight when the PVC is present in an amount in the range from 40 to 70 parts, so as to provide a mechanically compatible polyblend without miscibility or chemical compatibility. Further, a glass fiber reinforced (GFR) polyblend of PVC/CPE/PO/PO-G having a HDT of at least 95 DEG C and sufficient thermoformability to form the desired article has excellent notched impact strength. In the GFR polyblend the fibers are preferably long, at least 3 mm, and from 10-20 microns in diameter. The high HDT is obtained provided only if both co-compatibilizers and glass fibers are present in the reinforced composite.
展开▼
机译:由聚氯乙烯(PVC),氯化聚乙烯(CPE),聚烯烃(PO)和聚烯烃的接枝共聚物(PO-G)制成的热塑性共混物形成了具有优异的耐溶剂性和抗脂肪酸性的成型制品)。热塑性共混物包含作为第一连续单相的PO和PO-G(PO / PO-G),作为第二和第三分散相的PVC和CPE,选择组分的相对量以使大多数情况下,当PVC的含量在40到70份之间时,等量的PO和PO-G的含量可高达40重量份,从而提供机械相容的共混物,没有混溶性或化学相容性。此外,具有至少95℃的HDT和足以形成所需制品的热成型性的PVC / CPE / PO / PO-G的玻璃纤维增强(GFR)共混物具有优异的缺口冲击强度。在GFR共混物中,纤维优选长,至少3mm,直径为10-20微米。仅当增强复合材料中同时存在增容剂和玻璃纤维时,才能获得高HDT。
展开▼