有机硅交联剂对硅树脂/聚苯乙烯多孔复合材料性能的影响  

Effects of organic silicone crosslinking-agent on properties of silicone resin/polystyrene porous composites

作　　者：官成兰 孙争光[1,2] 陈博[1,2] 张玉红[1,2] 朱杰[1,2] 

机构地区：[1]湖北大学有机化工新材料湖北省协同创新中心,武汉430062 [2]湖北大学材料科学与工程学院,武汉430062

出　　处：《复合材料学报》2016年第1期77-83,共7页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(51203047)

摘　　要：以苯乙烯（St）为单体,含甲基丙烯酰氧基丙基的有机硅树脂（MTQ）为交联剂,采用高内相比乳液模板（HIPE）法制备了蜂窝状、低密度及高孔隙率的MTQ/聚苯乙烯（PS）多孔复合材料,研究了MTQ对聚合物多孔复合材料微观结构、压缩性能及热稳定性的影响。结果表明：MTQ/PS多孔复合材料的泡孔呈立体球形且泡孔壁上有丰富的互连孔,相互贯通性良好,泡孔直径为2~9μm,互连孔的孔径大小介于0.35~1.85μm;所得多孔材料孔隙率可控,总孔隙率最高可达92%;该多孔复合材料的压缩强度为0.28~0.74 MPa,压缩模量为4.86~13.54 MPa。当MTQ与St的质量比为30∶100时,可获得泡孔直径较小、互连孔道较窄、压缩性能和热稳定性较好的MTQ/PS多孔复合材料。Using styrene （St） as monomer and organic silicone resin with methacryloxypropyl group （MTQ） as crosslinking-agent, the MTQ/polystyrene （PS） porous composites with honeycomb, low densities and high porosity were prepared by high internal phase ratio emulsions template （HIPE） method. The effects of MTQ on microstruc- ture, compressive properties and thermal stability of polymer porous composites were investigated. Results indicate that the MTQ/PS porous composites have three-dimensional spherical cavities and rich interconnection pores in cavi- ties wall, connectivity is good, and the diameters of pores range from 2-9 μm with the average interconneetion pores diameters of 0.35-1.85 μm. The porosity of porous materials could be controlled, and total porosity could reach as high as 92%. Additionally, the compressive strength of porous composites is 0.28-0. 74 MPa, and compressive modulus is 4.86-13.54 MPa. When the MTQ to St mass ratio is 30 ： 100, MTQ/PS porous composites with smaller cavities diameter, narrow interconneetion pores, good compression properties and thermal stability could be ob- tained.

关 键 词：有机硅树脂 高内相比乳液 聚合物 多孔材料 结构 形貌 

分 类 号：TQ311[化学工程—高聚物工业]