| 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4800%，2083%，试样的2，24h吸水率分别降低了7137%和6694%；当玻纤质量占玻化微珠质量的10%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3571%，抗压强度提高834%. |
| 关键词: 玻化微珠 力学性能 耐水性能 增强机理 |
| DOI：103969/j.issn1007 9629201402024 |
| 分类号: |
| 基金项目:山东省科技发展计划项目（SGG1205） |
|
| Effect of Latex Powder and Glass Fiber on the Performance ofGlazed Hollow Bead Thermal Insulation Materials |
|
LI Xiaolong, LI Guozhong
|
|
Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials,University of Jinan, Jinan 250022, China
|
| Abstract: |
| Glazed hollow beads, cement, fly ash and latex powder were used to prepare glazed hollow beads thermal insulation material by the method of compression molding. The effects of redispersible latex powder on the mechanical properties and water resistance performance of the material were studied. Meanwhile, the action mechanism of latex powder was analyzed. The surface of alkali resistant glass fibers were treated by styrene acrylic emulsion, and the effects of glass fibers on the mechanical properties of glazed hollow beads thermal insulation materials before and after treatment were studied respectively. Besides, the fracture morphology of samples was observed and analyzed to explore the reinforced mechanism of fiber. The results show that, when the content of latex powder is 4%(by mass), compared with the control sample, the samples flexural strength, compressive strength increase by 4800%, 2083% respectively, and 2h, 24h water absorption of the samples reduce by 7137% and 6694% respectively. When the content of surface treated fibers is 10%(by mass), the samples flexural strength increases by 3571%, and the compressive strength increases by 834%, compared with the sample which is mixed with 1.0%(by mass) untreated glass fibers. |
| Key words: glazed hollow bead mechanical property water resistant performance enhancement mechanism |
