CAJ | 학술논문

　　采用一种有机溶胀剂作为聚丙烯（PP）基体的溶胀剂及接枝单体的溶剂，协助1，6-己二醇二丙烯酸酯（HDDA）及苯乙烯（St）固相接枝PP。考察了单体用量、引发剂用量、反应条件和溶胀条件对接枝反应的影响。用红外光谱和热重分析法对接枝产物的结构及性能进行分析。结果表明：接枝产物的接枝率、熔体强度相对于未溶胀时均有所提高。在优化反应条件下，即按照PP，HDDA，St与偶氮二异丁腈的质量比为100.00∶4.00∶1.82∶0.30投料，用6.6?g溶胀剂在40?℃?溶胀3?h，85?℃?反应2.0?h，接枝产物的熔体强度增加到2.51?kPa·s（为原料的4.48倍）。热稳定性与原料相比明显增强。
　　채용일충유궤용창제작위취병희（PP）기체적용창제급접지단체적용제，협조1，6-기이순이병희산지（HDDA）급분을희（St）고상접지PP。고찰료단체용량、인발제용량、반응조건화용창조건대접지반응적영향。용홍외광보화열중분석법대접지산물적결구급성능진행분석。결과표명：접지산물적접지솔、용체강도상대우미용창시균유소제고。재우화반응조건하，즉안조PP，HDDA，St여우담이이정정적질량비위100.00∶4.00∶1.82∶0.30투료，용6.6?g용창제재40?℃?용창3?h，85?℃?반응2.0?h，접지산물적용체강도증가도2.51?kPa·s（위원료적4.48배）。열은정성여원료상비명현증강。
Polypropylene?(PP)?was?grafted?with?1,6-hexanediol?diacrylate?(HDDA)?and?styrene?(St)?in?solid?state,?after?being?swollen?with?an?organic?solvent?of?the?grafting?monomers?and?initiator?for?some?time.?The?influences?of?the?monomer?and?initiator?amount,?reaction?and?swelling?conditions?on?the?graft?reaction?were?investigated.?The?structure?and?properties?of?the?graft?products?were?analyzed?by?infrared?spectroscopy?(IR)?and?thermogravimetric?(TG)?analysis.?The?results?show?that?the?grafting?ratio?and?melt?strength?of?the?graft?product?are?increased?compared?to?those?of?the?non-swelled?product.?The?melt?strength?of?the?graft?PP?increases?to?2.51?kPa·s?which?is?4.48?times?of?that?of?the?pure?PP?under?the?optimal?conditions?of?being?swollen?in?6.6?g?sweller?at?40?℃?for?3?hours,?and?reacting?at?85?℃?for?2?hours?when?the?mass?ratio?of?PP/HDDA/St/azobisisobutyronitrile?is?100.00∶4.00∶1.82∶0.30.?The?thermal?stability?of?the?graft?product?is?improved?dramatically?in?comparison?with?that?of?the?pure?PP.