工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2009年
12期
22-25
,共4页
反应挤出%聚丙烯%马来酸二丁酯%接枝率
反應擠齣%聚丙烯%馬來痠二丁酯%接枝率
반응제출%취병희%마래산이정지%접지솔
reactive extrusion%polypropylene%dibutylmaleate%degree of grafting
以马来酸二丁酯(DBM)为单体,反应挤出聚丙烯(PP)接枝DBM(PP-g-DBM).研究了口模温度、螺杆转速、单体用量、引发剂过氧化二异丙苯(DCP)对接枝率和熔体流动速率的影响,并用红外光谱(IR)、差示扫描量热等测试方法对接枝物进行了表征与分析.结果表明,DBM是用于反应挤出加工的良好接枝单体;IR表征DBM接枝到PP分子链上,且接枝产物中DBM残留量较少;PP、DBM、DCP接枝的最佳温度为190～200℃,螺杆转速不宜过高,DCP的适宜质量分数为0.04%～0.10%.
以馬來痠二丁酯(DBM)為單體,反應擠齣聚丙烯(PP)接枝DBM(PP-g-DBM).研究瞭口模溫度、螺桿轉速、單體用量、引髮劑過氧化二異丙苯(DCP)對接枝率和鎔體流動速率的影響,併用紅外光譜(IR)、差示掃描量熱等測試方法對接枝物進行瞭錶徵與分析.結果錶明,DBM是用于反應擠齣加工的良好接枝單體;IR錶徵DBM接枝到PP分子鏈上,且接枝產物中DBM殘留量較少;PP、DBM、DCP接枝的最佳溫度為190～200℃,螺桿轉速不宜過高,DCP的適宜質量分數為0.04%～0.10%.
이마래산이정지(DBM)위단체,반응제출취병희(PP)접지DBM(PP-g-DBM).연구료구모온도、라간전속、단체용량、인발제과양화이이병분(DCP)대접지솔화용체류동속솔적영향,병용홍외광보(IR)、차시소묘량열등측시방법대접지물진행료표정여분석.결과표명,DBM시용우반응제출가공적량호접지단체;IR표정DBM접지도PP분자련상,차접지산물중DBM잔류량교소;PP、DBM、DCP접지적최가온도위190～200℃,라간전속불의과고,DCP적괄의질량분수위0.04%～0.10%.
Polypropylene grafted with dibutylmaleate(DBM) was derived by reactive extrusion. The influence of die temperature, screw speed, the dosage of monomer and initiator (DCP) on graft rate and melt flow rate were studied. The graft copolymer was characterized and analyzed by the determination of the IR and DSC spectra. The results showed that DBM was a kind of graft monomer with good efficience during reactive extrusion processing which was proofed by IR. The optimal processing temperature was 190℃ to 200℃, and screw speed should not be too high. The suitable mass ratio of DCP was 0.04% to 0.10%.
