化学工艺学小组作业 三菱化工生产工艺及流程.ppt
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1、生产工艺及流程,11033304 韩明鼎,目录 1、导电塑料的分类及介绍 2、导电塑料的工艺流程 3、国内导电塑料发展中存在的问题,主要产品:功能材料和塑料产品,功能塑料是一种具有可塑性的人造高分子有机化合物树脂,功能性很广泛。 Functional plastics is a kind of resilient synthetic polymer organic compound resin, functionality is very broad.,导电塑料是将树脂和导电物质混合,用塑料的加工方式进行加工的功能型高分子材料。主要应用于电子、集成电路包装、电磁波屏蔽等领域。 Conducti
2、ve plastics is a mixture of resin and conductive material, plastic processing way to carry on the processing of functional polymer materials. Mainly used in electronics, integrated circuit packaging, electromagnetic shielding, etc.,磁性塑料是七十年代发展起来的一种新型高分子功能材料,是现代科学技术领域的重要基础材料之一。 磁性塑料按组成可分为结构型和复合型两种,结构
3、型磁性塑料是指聚合物本身具有强磁性的磁体;复合型磁性塑料是指以塑料或橡胶为粘合剂与磁性粉末混合粘接加工而制成的磁体。 Magnetic plastics are developed in the seventy s, a new kind of functional materials, polymer is one of the important basic materials in the field of modern science and technology. Magnetic plastic according to the composition can be divided
4、 into structural and compound two kinds, structured magnetic plastic refers to the polymer itself has strong magnetic magnet; Composite magnetic plastic refers to plastic or rubber for adhesive glue mixed with magnetic powder processing made of the magnets.,复合型磁性塑料主要由树脂及磁粉构成,树脂起粘接作用,磁粉是磁性的来源。用于填充的磁粉
5、主要是铁氧体磁粉和稀土永磁粉。 Composite magnetic plastics is made up of resin and magnetic powder, resin adhesive effect, magnetic powder is the source of magnetism. Used to populate the magnetic powder is mainly ferrite powder and rare earth permanent magnet powder,复合型磁性塑料按照磁特性又可分为两大类:一类是磁性粒子的易磁化方向是杂乱无章排列的,称为各向同
6、性磁性塑料,性能较低,通常由钡铁氧体作为磁性材料。另一类是在加工过程中通过外加磁场或机械力,使磁粉的易磁化方向顺序排列,称作各向异性磁性塑料,使用较多的是锶铁氧体磁性塑料。 Composite magnetic plastic according to the magnetic properties and can be divided into two categories: one kind is easy magnetization direction of the magnetic particles is desultorily, called isotropic magnetic
7、plastics, performance is low, usually by barium ferrite as magnetic materials. Another kind is in the process of processing through additional magnetic field and mechanical force, make the easy magnetization direction of the magnetic powder order, called anisotropic magnetic plastic, use more stront
8、ium ferrite magnetic plastics.,磁性塑料的主要优点是:密度小、耐冲击强度大,可进行切割、切削、钻孔、焊接、层压和压花纹等加工,使用时不会发生碎裂,它可采用一般塑料通用的加工方法(如注射、模压、挤出等)进行加工,可加工成尺寸精度高、薄壁、复杂形状的制品,可成型带嵌件制品,实现电磁设备的小型化、轻量化、精密化和高性能化。 磁性塑料的用途:音像器材,家用电器,计算机及办公用品,机械行业用品,汽车工业用品。,按照电性能分类,可分为:绝缘体、防静电体、导电体、高导体。 According to the electrical classification, can be di
9、vided into: insulation, anti-static, conductive, high conductor. 按导电塑料的制作方法分类,可分为结构型导电塑料和复合型导电塑料。 According to the classification of methods of producing conductive plastic, conductive can be divided into structural conductive plastics and plastic.,结构型导电塑料又称本征型导电塑料,是指本身具有导电性或经化学改性后具有导电性的塑料。 Structur
10、al eigen type conductive plastic, conductive plastic, also known as refers to itself has conductivity or after chemical modification with conductive plastic.,复合型导电塑料是指在塑料基体中加入导电材料,通过分散复合,层积复合等不同的方式加工而成的一种复合材料。 Conductive plastics is to point to add conductive material in the plastic substrate, by di
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