- crystalline rate
- crystallization rate
- rate of crystallization
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结晶速率的英文
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- It was found that in the case of non - isothermal crystallization , the onset and maximum crystallization temperatures of the nylon 6 of the nanocomposites are increased , while the crystallinity and crystallization growth rate is reduced
在非等温条件下，尼龙6石墨纳米薄片复合体系的结晶起始温度以及最大结晶速率时的温度均比纯尼龙6有明显的提高，但结晶度以及结晶速率却出现下降。 - The crystallization property were investigated by dsc . it was shown that the joining of ommt has a little effect on melting point of pp , the crystallization temperature of pp was improved obviously and the degree of crystallinity was increased ; through studying on kinetics of isothermal crystallization , the constant ( k ) of crystallization speed and crystallization speed ( g1 / 2 ) were lowered with rising of crystallization temperature ; half period of crystallizations and ( tp ) were delay with rising of crystallization temperature
Dsc研究结晶行为表明：有机蒙脱土的加入对pp熔点的影响不大，使pp的结晶温度明显提高，结晶度增大；通过等温结晶动力学的研究，结晶速率常数k和结晶速率g _ ( 1 2 )均随结晶温度的升高而降低；半结晶期t _ ( 1 2 )和t _ p都随结晶温度的升高而延长。 - The crystallization and melting behavior of mellocene - catalized branched and linear polyethylenes of low molecular weight was studied . it was found that the crystalline lattice of branched polyethylene is larger than that of linear polyethylene because of the existence of branched chains . the melting behavior of branched polyethylene is similar to that of linear polyethylene since the branched chains can not enter the lattice . however , the crystalline behavior of low molecular weight branched polyethylene is the same as that of high molecular weight linear polyethylene , but different with that of low molecular weigh linear polyethylene . kinetics theory analysis evidenced that the transition temperature of growth regime of the branched polyethylene is about 20 lower than that of linear polyethylene with the same molecular weight . it may be attributed to the existence of short branched chains
研究了金属茂催化的低分子量支化聚乙烯和线性聚乙烯的结晶及熔融行为，发现支化聚乙烯的结构与线性聚乙烯相同为正交结构，但晶格略有膨胀.支链的存在对熔融行为影响不大，两种聚乙烯的熔点均随结晶温度的升高而非线性增加，表现出低分子量样品的共同特征.但支链的存在对结晶行为却有很大的影响，主要是由于支链的存在降低了晶体的结晶速率从而影响结晶过程，使得低分子量的支化聚乙烯的结晶行为与高分子量线性聚乙烯的结晶行为相似而与低分子量的线性聚乙烯不同.动力学分析表明，低分子量的支化聚乙烯的结晶生长方式的转变温度比同等分子量的线性聚乙烯降低了约20 - The results from x - ray diffraction demonstrated that pp / mmtome was a fully intercalated nanocomposite , pp / mmtom and pp / ommt were partly intercalated nanocomposites , but the intercalation effect of pp / mmtom nanocomposite was better ; the crystallization characteristics of pure pp and pp / mmt nanocomposites were investigated by dsc , waxd and pom . the result of these testing showed that mmt nano - layers acted as nucleating agents for the crystallization of pp , the addition of mmt had effect on the crystallization process , leading the increasing of crystallization temperature crystallization rate and crystallinity , but also the dimension of spherulite reduced . but the formation of pp crystal did n ' t change , the formation of pp crystal in three pp / mmt nanocomposites and pure pp were a - form on the whole ; influences of three sorts of mmt on mechanical properties of pp / mmt nanocomposites were studied , as a result , the addition of mmt comprehensively improved mechanical properties of pp : notched impact strength , tensile strength and flexural properties were all increasing , but the extent of increasing were n ' t large
通过xrd分析比较这三种pp mmt纳米复合材料微观结构得到， pp mmt _ ( ome )属于完全插层， pp mmt _ ( om )与pp ommt的插层程度相近，但是pp mmt _ ( om )相对较好；通过对纯pp和三种pp mmt纳米复合材料的结晶性能研究发现，蒙脱土纳米片层对pp结晶产生明显的异相成核作用，结晶能力增强，使pp的结晶温度和结晶速率提高，结晶度增加，球晶晶粒细化，但是没有改变pp的结晶形态，三种pp mmt纳米复合材料的结晶形态都属于晶；通过对pp mmt纳米复合材料的力学性能测试得知，蒙脱土的加入全面提高了pp的力学性能，缺口冲击强度、拉伸强度和弯曲性能都有一定程度的提高，浙江{ _业大学硕十学位论文摘要但是提高幅度都不是很大，不过ommt 、 mmtom和mmtc ) me三种蒙脱土对pp力学性能有着不同的改性作用，其中pp / mmtom最好， pp月边mto崛次之， pp / ommt最低，这种情况主要是由蒙脱土对pp结晶性能的影响和蒙脱土的纳米改性作用造成的。 - The wxrd characterization showed that o - mmt possessed obvious nucleation effect on the crystallization process of b - pp . jeziorny and mo methods were used to study the non - isothermal crystallization process . the obtained value of kinetics parameters such as tp , n , zc , t1 / 2 , a h , f ( t ) , e showed that the o - mmt has nucleation effect in crystallization of pp and can increases the crystallization temperature of pp , quickens the crystall ization velocity , decreases the crystallization activation energy of pp but decreases the crystallization degree of pp at the same time
运用jeziorny法和mo法研究了聚丙烯和复合材料的非等温结晶过程，所得到的非等温结晶过程动力学参数t _ p ， n ， z _ c ， t _ ( 1 / 2 ) ， h ， f ( t ) ， e的数值表明，有机蒙脱土的加入可以起到异相成核的作用，从而提高pp的结晶温度，加快pp的结晶速率，降低pp的结晶活化能，但同时也会降低pp的结晶度。