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玻纤增强酚醛注塑料的制备技术和性能 被引量:5

Preparation of glass fiber reinforced phenolic injection molding materials and its properties
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摘要 研究了玻纤增强酚醛注塑料制备过程中基质树脂的选择、固化作用与交联结构的控制及玻纤分散技术,考察了不同基质树脂制备的酚醛注塑料的固化成型结构形态和固化流变特性.进一步采用热固性与热塑性酚醛树脂相复配的基质树脂体系,经配方和制备工艺的优化,制备了高填充量玻纤增强酚醛注塑料.该注塑料具有良好的注塑成型性能,注塑制品具有高强度,冲击强度达到4·3kJ·m-2,弯曲强度137·4MPa,同时热变形温度为245℃,阻燃性通过美国UL94V-0级认证,并具有优良的尺寸稳定性、电绝缘性能和低成本优势. Key technical issues including the selection of base resin, the control of curing reaction and cured structure, and the dispersing of glass fiber fillers in the preparation of glass fiber reinforced phenolic injection molding materials were studied. Differences in the formed structure and morphology and curing rheological properties of phenolic injection molding materials prepared with different types of base resins were also investigated. By using blend resins of resol and novolac as base materials, optimizing raw materials formulation and preparation technology, a new kind of glass fiber reinforced phenolic injection molding material was obtained. The new material showed excellent mechanical properties, heat resistance and good flame retardant as well as suitable injection properties, its Charpy notch impact strength was 4.3 kJ · m^-2 , flexural strength was 137.4 MPa, heat distortion temperature was 245 ℃ and flame retardant properties passed the attestation of UL 94 V-0. In addition, it showed good dimension stability, insulation properties and had lower-cost advantage.
出处 《化工学报》 EI CAS CSCD 北大核心 2005年第10期1993-1997,共5页 CIESC Journal
关键词 玻纤增强 酚醛注塑料 制备 性能 glass fiber reinforcement phenolic iniection molding materials preparation properties
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参考文献5

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