| 丙烯酸接枝丁苯胶乳的合成和性能研究 |
| Synthesis and characterization of SBR latex grafted with acrylic acid |
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| DOI： |
| 中文关键词: 丁苯胶乳 丙烯酸 接枝聚合 接枝丁苯橡胶 聚己内酰胺 |
| 英文关键词: SBR latex acrylic acid graft copolymerization graft SBR PA-6 |
| 基金项目:国家重点基础研究专题经费资助项目(G1999064800) |
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| 中文摘要: |
| 在空气和室温条件下采用氧化-还原引发体系合成丙烯酸接枝丁苯胶乳，对影响丙烯酸接枝率R的因素、接枝胶乳结构及聚己内酰胺(PA-6)/丙烯酸接枝丁苯橡胶(SBR-g-AA)共混物性能进行了探讨。试验得出，各因素对R影响的大小顺序为：引发剂(叔丁基过氧化氢和四亚乙基五胺)质量分数、丙烯酸质量分数、反应时间；接枝后丁苯胶乳粒径稍有增大且分布变宽；SBR-g-AA可改善PA-6的冲击强度和拉伸强度。 |
| 英文摘要: |
| The acrylic acid-grafted SBR (SBR-g-AA) latex was synthesised with oxidation-reduction initiating system at the room temperature in the presence of air.The affecting factors on the graft yield R，the structure of grafted latex and the physical properties of PA-6/SBR-g-AA latex were investigated.The test results showed that the order of the affecting factors on R were as follows：content of initiator (tert-butyl hydroperoxide or tetraethylene pentamine)＞content of acrylic acid＞reaction period；the particle size of SBR-g-AA latex increased a little，and its distribution became wider；SBR-g-AA latex could be used to improve the impact strength and tensile strength of PA-6. |
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