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各种聚合方法所生产的聚氧乙烯树斯的粒子结
构、形态和加工性能均有所不同。聚氯乙烯树脂颗粒结构非常复
杂,不同于具有均匀结构,较易熔融加工的一般聚合物如聚苯乙
烯、甲基内烯甲等。聚氯乙烯树脂粉料粒子实际上是许多聚氯
乙烯微细粒子以物理方式黏结在一起的聚集体,这种聚集粒子通常
以聚合初期形成的尺寸仅为0.1~0.8pm的原生初级粒子为基础
含有若干由初级粒子聚集后尺寸为2~10pm的聚集粒子所组成
氯乙烯形态学研究表明,常用的疏松型悬浮法聚氯乙烯颗粒的外
表面,存在一层由分散剂和氯乙烯接枝共聚而成的“皮膜”,“皮
膜”内部由许多0.5~3m的所谓次级粒子组成,而每个次级粒子
又由无数个10~100m的卷曲着的聚氯乙烯长链分子团,即初级
粒子构成,如图21所示,因此,整个颗粒似乎是由多个细胞堆积
而成,形成所谓“多细胞”结构,组成聚氯乙烯树脂各层次微细粒
子的名称和尺寸范围见表2-1,皮聚集粒子,的00lume
1悬浮法聚氯乙烯树脂结构示意图表2-1悬浮法聚氯乙烟粒子中微细粒子的名称和尺寸范围
中文名称英文名称一尺す范围形成及相互关系子「的m「流量를출皮膜,内部叙粒子) ub-gn
0-10合反应过程中聚合的液演同

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A variety of polymerization methods are used to produce the particle junctions of polyoxyethylene trees

The structure, morphology and machining properties are different.Polyvinyl chloride resin particle structure is very complex

Miscellaneous, different from a homogeneous structure, more fusible processing of general polymers such as polyphenylethylene

Alkene, methyl alkene, etc.Polyvinyl chloride resin powder particles are actually many polychlorines

A collection of ethylene fine particles that are physically bound together, usually in aggregate

It is based on primary particles whose size is only 0.1~0.8pm at the initial stage of polymerization

It is composed of a number of aggregates with a size of 2~10pm after primary particle aggregation

The morphology of vinyl chloride showed that the commonly used loose suspension method of polyvinyl chloride particles outside

Surface, there is a layer of dispersant and vinyl chloride graft copolymerization of the "film", "skin"

The interior of the membrane is composed of a number of so-called secondary particles of 0.5~3m, each of which is a secondary particle

Also by the innumerable 10~100m long curly polyvinyl chloride chain molecular group, namely primary

The particles are composed, as shown in figure 21, so the whole particle appears to be composed of multiple cells

And become, form so - called "much cell" structure, composition polyvinyl chloride resin each layer fine grain

The names and size ranges of the particles are shown in table 2-1, skin aggregates, 00lume

1. Structure of suspended polyvinyl chloride resin

Scope of Chinese name English name a foot す formation and the relationship between the child "m" traffic 를 출 skin membrane, inside Syria ub - designed.the gn particles)

The liquid homology of polymerization in the 0-10 reaction