查询词典 nucleator

The isothermal crystallization morphology of polypropylene copolymer containing TM-3,a clarifying nucleator,was observed by polarized light microscope.

一般共聚聚丙烯是在丙烯聚合过程中添加少量乙烯单体，通过改变聚丙烯分子的结构规整性而提高其低温抗冲性能。

With azodicarbamide as blowing agent and nano-CaCO3 as nucleator, the cell morphologies of non-crosslinked and corsslinked polypropylene foams were studied. The effects of different contents of crosslinking agent on the flexural strength and non-notched impact strength of PP foamed compound were also studied.

以活性纳米碳酸钙为成核剂，偶氮二甲酰胶为发泡剂，研究了未交联和交联聚丙烯发泡的泡孔结构，同时还研究了不同的交联剂含量对聚丙烯发泡制品弯曲强度和无缺口冲击强度的影响。

The results show that after adding B nucleator , the crystallographic form of PP was transformed fromαtoβ, the initial crystallization temperature increased obviously, the total crystallization time shortened.

结果表明，添加β晶型成核剂后，PP由α晶型向β晶型转变，起始结晶温度明显提高，总结晶时间缩短，结晶活化能降低。

With the addition of a nucleator, the melting point and crystallizing temperature of iPP rise, the induction period of crystallization is shortened, the crystallizing gets faster and the crystallinity increases.

随着退火温度的升高和退火时间的延长，iPP薄膜的熔点升高、片晶厚度和结晶度逐渐增加，弹性回复率逐渐增大，拉伸强度增大，断裂伸长率减小。

Pimelic acid is a weak β nucleator ,the β crystal form which induced is not stable and transforms to αcrystal form during heating,so the DSC peaks widen.

庚二酸是低活性β晶型成核剂，生成的β晶型不稳定，易在加热时转变为α晶型，造成DSC熔融峰变宽。

But the two-component nucleator,pimelic acid/calcium carbonate exhibited good thermal stability,which infer that there are some interactions between pimelic acid and calcium carbonate.

这可能是由于庚二酸与碳酸钙之间存在某种相互作用，从而使成核效果得以稳定，而辛二酸、壬二酸与碳酸钙组成的双组分成核剂中，两个组分基本独立存在。

In this paper POM is determined as base resin, the glassfiber and the carbon fiberare joinend to enhance, the toughener is acceded to toughen, the nucleator is entered tochange its crystallinity.

本文确定综合性能优异的POM为基础树脂，加入玻璃纤维和碳纤维增强、加入增韧剂增韧、加入成核剂改变其结晶度。

The results proclaimed that nucleator C caused the thinner spherulites of POM and a greater growth rate, which was a three dimensional heterogenous growth process, and the crystal system of POM was not changed, but the crys-tallinity of POM decreased, the crystallite size of POM increased.

实验果表明，成核剂C的加入，使POM球晶细化，结晶速度加快，结晶过程为异相成核三维生长过程，且不改变POM的结晶晶型但结晶度略有下降，微晶尺pp成核剂寸增大。

The developmental focuses and commercial achievments in Chinese plastics industry in 2004 were introduced,including nano-composites,sun cell , UHMW polyethylene,nucleator,plasma treatment,polyvinyl alcohol reinforced thermoplast et al.

介绍了2004年中国塑料产业的研发热点及产业化成果，包括纳米复合材料、太阳能电池、超高分子量聚乙烯、成核剂、等离子处理、聚乙烯醇膜等。

The experimental results indicate that when introducing XT-β nucleator into PP, the size of spherulite of the specimen obviously reduces and there appear typical characteristic diffraction peaks of β crystal form in the wide-angle X-ray diffraction pattern....

结果表明：在PP中引入XT-β晶型成核剂后，试样的球晶尺寸明显减小，广角X射线衍射谱图出现了典型的β晶型特征衍射峰；试样的结晶速率、结晶温度明显提高，差示扫描量热法谱图出现α晶型、β晶型2个熔融峰，β晶型含量达到总结晶量的50%～80%；XT-β晶型成核剂可使体系保持较好的力学性能，PP负荷下热变形温度提高15～40℃。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。