摘要
不饱和聚酯树脂(简称UP-树脂)固化时体积收缩率高达7％～10％,限制了它的应用范围,七十年代以来,国外已开始生产低收缩不饱和聚酯树脂,并有不少这方面的专利,我国尚未见有关研究低收缩树脂的报道,我们考察了PS、PE、PVC、330聚醚及醇酸树脂的减收缩效果并用于191 UP-树脂,制成了无填料浇铸板及散状模塑料,测定了它们的体积收缩率、线收缩率以及力学和热学性能,发现PS、PE、PVC及330聚醚只宜做散状模塑料,而醇酸树脂则既可做散状模塑料又可做无填料浇铸板,性能均较好。
The shrinkage- compensation effects of five polymers such as PS, PE, PVC, 330* polyether, alkyd resin on 191* unsaturated polyester were examined. These polymers were used in the preparation of low-profile sheet-molding and bulk-molding compounds and the mechanical and thermal properties of these products were also determined. The properties of these modified unsaturated polyesters are satisfactory.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第7期781-783,共3页
Chemical Journal of Chinese Universities
关键词
不饱和聚酯树脂
低收缩
减收缩
聚酯模塑料
Unsaturated polyesters, Shrinkage resistance, Shrinkage-resistance polyester, Moldings
