STUDY ON WOLLASTONITE SHORT FIBER-FIBERGLASS-EPOXY RESIN COMPOSITE
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摘要: 本文叙述了硅灰石短纤维的组成、性质及主要作用,重点研究硅灰石短纤维-玻璃纤维-环氧树脂-咪唑缠绕增强体系。通过对硅灰石短纤维的长径比、粒径、填充量及表面改性等方面的研究探讨表明,硅灰石短纤维具有明显的增强作用和电绝缘性,特别是对玻璃纤维垂直方向增强作用显着,并可以有效防止缠绕制品开裂。利用硅灰石短纤维调节环氧灌注胶的粘度,可避免缠绕过程中的甩胶现象。借助扫描电镜,分析硅灰石短纤维在体系中的分散情况,并提出无机短纤维的增强模型。Abstract: The elemental composition, properties and main uses of the wollastonite short fiber were described. The wollastonite short fiber-fiberglass-epoxy resin-EMI-2.4 composite was studied. Slenderness ratio, particle size, content and surface-treatment of the wollas-tonite short fiber were discussed. The experiments showed that the wollastonite short fiber is a kind of inorg anic filler with good reinforce and insulation, particularly, the reinforce is very remarkable in the direction of veritcal fiberg lass. The dehiscence of the enwound product was avoided. Because the wollastonite short fiber regulated the viscosity of the epoxy resin under the room temperature, it would be avoided that the epoxy resin was thrown when the fiber glass was enwound. The distribution of the wollast onite short fiber in the system was obser ved by means of SEM and a reinforce model of the inorganic short fiber was advanced.
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