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.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
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)
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
organic silicone resin
high internal phase ratio emulsions
polymer
porous materials
structure
mor-phologies
