中山大学学报（自然科学版）
中山大學學報（自然科學版）
중산대학학보（자연과학판）
Acta Scientiarum Naturalium Universitatis Sunyatseni
2015年
5期
62-66
,共5页
李美%章自寿%谭韵红%戴欣%李谷%麦堪成
李美%章自壽%譚韻紅%戴訢%李穀%麥堪成
리미%장자수%담운홍%대흔%리곡%맥감성
β-成核无规共聚聚丙烯%力学性能%结晶与熔融
β-成覈無規共聚聚丙烯%力學性能%結晶與鎔融
β-성핵무규공취취병희%역학성능%결정여용융
β-modification polypropylene random copolymer%mechanical properties%crystallization and melting
为提高无规共聚聚丙烯（PPR）冲击强度，制备了庚二酸钙成核 PPR 和纳米碳酸钙与负载庚二酸钙的纳米碳酸钙填充 PPR，采用力学性能测试方法、DSC、XRD 和 SEM对比研究了其力学性能、结晶性能和β－晶含量。讨论了庚二酸钙和纳米碳酸钙及其负载庚二酸钙的纳米碳酸钙对 PPR 冲击强度、断裂伸长率、结晶温度和β－晶含量的影响，指出采用负载型β－成核剂是提高 PPR 韧性的有效方法。
為提高無規共聚聚丙烯（PPR）遲擊彊度，製備瞭庚二痠鈣成覈 PPR 和納米碳痠鈣與負載庚二痠鈣的納米碳痠鈣填充 PPR，採用力學性能測試方法、DSC、XRD 和 SEM對比研究瞭其力學性能、結晶性能和β－晶含量。討論瞭庚二痠鈣和納米碳痠鈣及其負載庚二痠鈣的納米碳痠鈣對 PPR 遲擊彊度、斷裂伸長率、結晶溫度和β－晶含量的影響，指齣採用負載型β－成覈劑是提高 PPR 韌性的有效方法。
위제고무규공취취병희（PPR）충격강도，제비료경이산개성핵 PPR 화납미탄산개여부재경이산개적납미탄산개전충 PPR，채용역학성능측시방법、DSC、XRD 화 SEM대비연구료기역학성능、결정성능화β－정함량。토론료경이산개화납미탄산개급기부재경이산개적납미탄산개대 PPR 충격강도、단렬신장솔、결정온도화β－정함량적영향，지출채용부재형β－성핵제시제고 PPR 인성적유효방법。
In order to improve the impact strength of polypropylene random copolymer (PPR),the calci-um pimelate nucleated PPR,nano-CaCO3 and calcium pimelate-supported CaCO3 filled PPR were pre-pared.Their mechanical properties,crystallization behavior and the content of β-modification were stud-ied using mechanical testing,differential scanning calorimetry,wide-angle X-ray diffraction and scanning electron microscopy.The effect of calcium pimelate,nano-CaCO3 and calcium pimelate-supported CaCO3 on the impact strength,elongation at break,crystallization temperature and β-modification contents of PPR were investigated.The result indicated that using supported β-nucleating agent was an efficient method to increase the β-modification contents and improve the toughness of PPR.
