乳胶粉和玻纤对玻化微珠保温材料性能的影响

发布时间：2018-08-27 06:13

【摘要】：以玻化微珠、水泥、粉煤灰、乳胶粉为原材料,经模压成型制备玻化微珠保温材料,研究了可再分散乳胶粉对其力学性能和耐水性能的影响,分析了乳胶粉作用机理;利用苯丙乳液对耐碱玻纤进行表面处理,分别研究处理前后玻纤对玻化微珠保温材料力学性能的影响,并利用扫描电镜对试样断口微观形貌进行观察和分析,探讨了玻纤增强机理.结果表明:乳胶粉质量占玻化微珠质量的4%时,试样抗折强度、抗压强度较空白试样分别提高了48.00%,20.83%,试样的2,24h吸水率分别降低了71.37%和66.94%;当玻纤质量占玻化微珠质量的1.0%时,掺加经过表面处理玻纤的试样与掺加未经表面处理玻纤的试样相比,前者的抗折强度提高35.71%,抗压强度提高8.34%.
[Abstract]:The thermal insulation material of vitrified microbeads was prepared by molding with glass microbeads, cement, fly ash and latex powder as raw materials. The effects of redispersible latex powder on its mechanical properties and water resistance were studied, and the mechanism of emulsion powder action was analyzed. The effect of glass fiber on mechanical properties of glass bead insulation material was studied by using styrene-acrylic emulsion to treat alkali resistant glass fiber, and the microstructure of fracture surface was observed and analyzed by scanning electron microscope (SEM). The mechanism of glass fiber reinforcement is discussed. The results show that when the mass of latex powder accounts for 4% of the mass of vitrified microbeads, the flexural strength and compressive strength of the samples are increased by 48.00 and 20.83, respectively, and the water absorption of the samples in 2h is reduced by 71.37% and 66.94%, respectively, and when the glass fiber mass accounts for 1.0% of the mass of vitrified microbeads, the water absorption of the samples is decreased by 71.37% and 66.94%, respectively. The flexural strength and compressive strength of the treated glass fiber were 35.71 and 8.34, respectively, compared with those of the untreated glass fiber.
【作者单位】：济南大学建筑材料制备与测试技术山东省重点实验室;
【基金】：山东省科技发展计划项目(SGG1205)
【分类号】：TU551

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