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1)  β-crystal
β-晶
1.
The phenomenon of nucleation and crystallization of β-crystal of polypropylene(PP)in light calcium carbonate(L-CaCO3)/PP blends was studied by X-ray diffraction and differential scanning calorimetry.
用X射线衍射和差示扫描量热法研究了轻质碳酸钙/聚丙烯共混物(L-CaCO3/PP)中PPβ-晶的成核结晶现象,发现PPβ-晶的成核结晶与PP的来源和L-CaCO3在共混物中的含量有关,铝酸酯偶联剂对共混体系的PPβ-晶的成核结晶有显著的增强作用。
2)  β form crystal
β晶
3)  α,β',β form
α,β',β晶型
4)  β-calcium metaphosphate whisker
β-CMP晶须
5)  β-Si3N4 grains
β-Si3N4晶粒
1.
The results reveal that the diameter and aspect ratio of elongated β-Si3N4 grains in the composites decrease with increasing h-BN content.
结果表明:随着h-BN含量增加,柱状β-Si3N4晶粒的直径和长径比均下降;未加h-BN时,β-Si3N4陶瓷以沿晶断裂为主,添加体积含量为6%和8%的h-BN后,复合材料出现明显的沿晶和穿晶断裂,而添加10%h-BN的陶瓷复合材料则以沿晶断裂为主。
6)  β crystal form
β晶型
1.
The effect of crystallization temperatures(100 ℃~140 ℃) on the production of β crystal form in isotactic polypropylene nucleated by pimelic acid,magnesium pimelate and aluminium pimelate respectively had been studied in this paper.
研究了结晶温度(100℃~140℃)对庚二酸、庚二酸镁、庚二酸铝成核等规聚丙烯中β晶型生成的影响。
2.
It introduced six sorts of β crystal form nucleation, which had been developed successfully, and emphatically introduced two sorts of substituted acylamide and rare earth, which have been to practical application.
介绍了六类已开发成功的β晶型成核剂品种,其中重点介绍了已获得实际应用的取代酰胺类和稀土类两种,并介绍了PP的β晶型成核配方设计原则。
3.
The mechanical properties, WAXD and DSC analysis of fiber-grade Z30S PP modified by β crystal form nucleator (amide compound) had been studied.
研究了β晶型成核剂(酰胺化合物)成核改性纤维级聚丙烯Z30S的力学性能,进行了广角X射线衍射和DSC分析。
补充资料:1-[β,β,β-三(对氯苯基)丙酰]-4-甲基哌嗪
分子式:C26H25CL3N2O
分子量:487.85
CAS号:2390-22-9

性质:该品溶点213-215℃。作兽用驱虫药时常用基盐,又称Dieroden。盐酸盐的熔点为267-269℃,易溶于热水和醇。

制备方法:以三(对氯苯基)甲醇(Ⅰ)为原料,与氰乙酸加成得β,β,β-三(对氯苯基)丙腈(Ⅱ),经浓硫酸水解得β,β,β-三(对氯苯基)丙酸(Ⅲ),再用五氯化磷酰氯化,得到β,β,β-三(对氯苯基)丙酰氯(Ⅳ),最后与N-甲基哌嗪缩合制得海涛林。

用途:该品为治疗牛、羊矛形腔吸虫病的高效药物,具有作用强、驱虫率高(96%以上)、毒性低、适口性好等优点,国外畜牧业应用十分广泛。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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