摘要
通过多步复合乳液聚合方法合成了一种具有核壳结构的刚性聚合物微球 .不同粒径、用量及核层交联密度的核壳微粒 ( C-S)与聚苯乙烯 ( PS)共混得到 PS/C-S复合材料 .通过对其冲击强度及透明性的研究表明增韧 PS的最佳条件是核壳微粒的粒径大于 1 0 0 nm,复合材料中的微粒含量在 2 %～ 5% ,核层具有适当的交联度 .在未影响材料透明性的前提下 ,材料的韧性比纯 PS提高
A kind of rigid polymer microsphere with core shell structure was synthesized by multi step composite emulsion polymerization technique. The polystyrene(PS) composite with different particle sizes, concentration and core layer crosslinking agent of core shell particles were prepared. The impact strength and the transparency were studied which indicated that the best condition for toughening PS was that the particle size was above 100 nm, the particle content in PS composite was in the range of 2%—5% and the appropriate crosslinking density in core layer. The material toughness was improved two times higher than that of pure PS while the PS transparency was not affected. [WT5HZ]
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第12期1925-1927,共3页
Chemical Journal of Chinese Universities
基金
国家重点基础研究专项经费基金! (批准号 :G19990 64 80 3 )资助
