以中空玻璃微球、碳酸钙和玻璃纤维毡为原料,采用模压成型的方法制得中空玻璃微球/碳酸钙/玻璃纤维毡复合材料。用稳态法测试复合材料的热导率。通过一系列静态压缩、拉伸和弯曲实验,研究了中空玻璃微球填充量对复合材料强度的影响,并分析了影响原因。研究结果表明:在添加5.0%(wt,质量分数,下同)中空玻璃微球和40.0%碳酸钙条件下,制得的复合材料的密度达到1.434g/cm3,热导率达到0.145W/(m·℃),拉伸强度达到17.10MPa、弯曲强度达到2.33MPa、压缩强度达到87.28MPa。碳酸钙填充量越多,复合材料密度越大,热导率越大,力学性能也增强。
Hollow glass microspheres,calcium carbonate and glass fiber mat as raw materials,hollow glass microspheres/calcium carbonate/glass fiber mat composite was formed by using the press molding method.Steady state method was used to measure the thermal conductivity of composite.Through a series of static compression,tensile and bending experiments,the effect of the content of hollow glass microspheres on the composite strength was studied and analyzed the reasons.The results showed that when added 5.0wt% hollow glass microspheres and 40.0wt% calcium carbonate,the density of composite was 1.434g/cm3,the thermal conductivity reached 0.145W/(m·℃),the tensile strength reached 17.10MPa,the flexural strength of 2.33MPa,and the compressive strength of 87.28MPa.The more calcium carbonate filling,the greater the composite density,the greater the thermal conductivity,and the mechanical properties were also enhanced.
[1] 邱军,陈典兵.碳纳米管及碳纤维增强环氧树脂复合材料研究进展[J].高分子通报,2012(2):9-15.
[2] 刘元军,赵晓明,拓晓.石墨/碳化硅/铁氧体涂层复合材料性能研究[J].材料科学与工艺,2016,24(1):90-96.
[3] 梁小杰,梁宁宁,梁忠旭,等.树脂/中空玻璃微珠复合泡沫塑料研究进展[J].工程塑料应用,2015,43(2):121-124.
[4] 李慧剑,梁希,何长军,等.中空玻璃微球填充环氧树脂复合材料力学性能试验研究[J].燕山大学学报,2011,35(1):46-51.
[5] Li Jiwei,Luo Xuegang,Lin Xiaoyan.Preparation and characterization of hollow glass microsphere reinforced poly (butylene succinate) composites[J].Materials and Design,2013,46(3):902-909.
[6] 惠雪梅,张炜,王晓洁,等.EP/纳米SiO2/空心微珠复合材料的性能研究[J].工程塑料应用,2005,33(7):16-19.
[7] 崔峰波,曹国荣.玻璃纤维增强聚丙烯的性能研究[J].玻璃纤维,2011(1):9-11.
[8] Dimchev M,Caeti R,Gupta N.Effect of carbon nanofibers on tensile and compressive characteristics of hollow particle filled composites[J].Materials and Design,2010,31(3):1332-1337.
[9] 刘爽.中空玻璃微球及纤维增强环氧树脂复合材料力学性能研究[D].秦皇岛:燕山大学,2014.
[10] 余为,刘爽,李慧剑,等.玻璃纤维增强中空玻璃微珠/环氧树脂复合泡沫材料弹性常数分析[J].机械强度,2016,38(2):295-301.
[11] Ferreira J A M,Capela C,Costa J D.A study of the mechanical behaviour on fibre reinforced hollow microspheres hybrid composites[J].Composites Part A,Applied Science and Manufacturing,2010,41(3):345-352.
[12] 周文英,王子君,董丽娜,等.聚合物/BN导热复合材料研究进展[J].合成树脂及塑料,2015,32(2):80-84.
[13] 杨建明,吴会军,钟支葵,等.石英玻璃纤维/气凝胶复合材料的热导率计算及优化[J].材料导报,2016,30(10):139-143,147.
[14] Han Yuwang,Lv Sumin,Hao Chanxi,et al.Thermal conductivity enhancement of BN/silicone composites cured under electric field:stacking of shape,thermal conductivity,and particle packing structure anisotropies[J].Thermochimica Acta,2012,529(1):68-73.
[15] 马明明,张彦.玻璃纤维及其复合材料的应用进展[J].化工新型材料,2016,44(2):38-40.
基金资助
国家自然科学基金(21403091);江苏省自然科学基金(BK20160515);2015江苏省双创团队项目(1721222091)
PDF
(1584KB)
