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1)  β″ nuclei
β″核心
1.
It is indicated that GP zones dissolution process of the T4(stored for two weeks at room temperature after solution treatment) alloys in the early stages of artificial aging at 170℃ delays the precipitation of β″ phase,and the precipitates formed are mainly β″ nuclei,decreasing aging hardenability.
结果表明:在170℃人工时效初期,T4态(固溶淬火后室温放置两周)合金中GP区的溶解过程推迟了β″相的析出,所形成的析出物主要是β″核心,导致时效硬化性下降;而T4P态(固溶淬火后立即170℃人工时效不同时间,然后室温放置两周)合金在这一阶段β″核心连续长大成为β″相,其显微组织以β″析出物为主,导致时效硬化性增强。
2)  β-nucleating agent
β-成核剂
1.
Study was carried out of blocked copolymerized polypropylene(PP-B)with a small amount ofβ-nucleating agent added and by way of wide-angle X-ray diffraction it was determined thatβ-PP the generating mass fraction of which ranged from 60%to 80%was formed in the sample.
主要研究了在嵌段共聚聚丙烯(PP-B)中加入少量的β-成核剂,用广角X射线衍射测得其样品中生成了含有质量分数范围为60%~80%的β-PP。
3)  β-nucleating Agent
β成核剂
1.
Development of β-nucleating Agent Toughening Masterbatch for PP;
聚丙烯β成核剂增韧母料的研制
2.
The influence of a new kind of acylaminoβ-nucleating agent on the crystalliza- tion behavior of polypropylene(PP)was studied.
研究了新型酰胺类β成核剂对聚丙烯(PP)结晶性能的影响。
3.
The influence of β-nucleating agent(N,N′-dicyclohexylterephthalicamide) on the mechanical and crystallization characteristics of polypropylene(PP) was studied.
研究了N,N′-二环己胺基对苯二酰胺作为β成核剂对聚丙烯(PP)力学性能及结晶性能的影响。
4)  β-nucleator
β成核剂
1.
The influence of β-nucleator and M-HOS whisker on the mechanical behavior of polypropylene were studied .
研究了β成核剂和镁盐晶须对聚丙烯力学性能的影响 ,并对其进行了DSC分析。
5)  β nucleator
β成核剂
1.
It was found that more ef- fective β nucleators were Indigosol Grey IBL and Indigosol Golden Yellow IGK.
精选了一系列有机和无机化合物为成核剂,使用砂浴法和热台法制备了一系列不同β晶含量的等规聚丙烯,发现最有效的β成核剂是溶靛素灰 IBL 和溶蒽素金黄 IGK,首次表明β成核剂具有排列紧密的稠球结构特征,且含有硫原子。
6)  β-Kernel estimate
β-核估计
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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