纳米聚合物填料的制备及其填充橡胶性能研究

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采用乳液聚合法制备单分散交联聚苯乙烯（PS）和α-甲基苯乙烯-丙烯腈共聚物（α-MS-AN）乳胶粒子,并研究其填充NBR和SBR胶料性能。结果表明,当引发剂KPS、乳化剂OP-10和SDS、交联剂DVB质量分别为单体质量的1%,3.3%,6.6%和20%时,可制备出平均粒径为43 nm、玻璃化温度（Tg）为125℃的PS纳米微球;当引发剂APS、乳化剂MS-1和交联剂DVB质量分别为单体质量的0.3%,2%-3%和15%时,可制备出平均粒径为47 nm、Tg为152℃的α-MS-AN纳米微球。两种填料在NBR和SBR胶料中的最佳用量均为30份S填充SBR胶料的物理性能优于其填充的NBR胶料;α-MS-AN填充的NBR胶料物理性能优于其填充的SBR胶料。
' d, D! G+ R/ l0 D- K王连盛（1979-），男，甘肃兰州人，北京化工大学在读硕士研究生，主要从事乳液聚合和橡胶加工研究。
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KeyWord：emulsion polymerization ; nano polymer filler ; SBR ; NBR
) g3 k( f1 P: q$ E关键词：乳液聚合 纳米聚合物填料 SBR NBR

分类号：TQ330.383 TQ333.17[著者标引]文献标识码：A文章编号：1000-890X（2008）04-0197-06
! z+ Z0 c% G8 X) o2 i. BPreparation of nano polymer filler and properties of the filled rubber compound WANG Lian-sheng ,LU Ming ,ZHOU J ian-jun ,ZHAO Wei ,LIU Ya-kang ,ZHANG Li-qun Beijing University of Chemical Technology,Beijing 100029,China
0 V  A$ D  u# C- s3 d6 g& pAbstract：Monodisperse crosslinked polystyrene （PS） and a-methyl styrene-acrylonitrile （α-MSAN） nano-latex particles were prepared by emulsion polymerization, and the physical properties of NBR and SBR filled with nano-latex particles were investigated. The results showed that the average particle size and Tg of PS were 43 nm and 125 ℃ respectively when the addition level of KPS,OP-10, SDS and DVB were 1 %, 3.3 %, 6.6% and 20%, respectively; the average particle size and Tg of α-MS- AN were 47 nm and 152 ℃ respectively when the addition level of APS,MS-1 and DVB were 0.3%, 2-3% and 15% ,respectively. The optimum addition level of fillers was 30 phr;the physical properties of PS filled SBR was better than those of PS filled NBR;and the physical properties of α-MS-AN filled NBR was better than those of α-MS-AN filled SBR.

2 d1 w! ?/ s+ b5 {; y1 qKeyWord：emulsion polymerization ; nano polymer filler ; SBR ; NBR
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