摘要
以苯乙烯-丙烯腈(SAN)、甲基丙烯酸甲酯(MMA)和过氧化二苯甲酰(BPO)为原料,采用原位本体聚合法制备SAN/PMMA复合材料。通过红外光谱(FT-IR)、玻璃化温度(θg)、热失重(TG)、邵氏硬度、弯曲强度、冲击强度和可见光透过率研究SAN/PMMA复合材料的性能。研发发现:SAN可提高PMMA的θg和热分解温度,20%～25%SAN与PMMA聚合可制得综合性能优异的高强高韧SAN/PMMA透明复合材料。其中,硬度由88 HD提高到90 HD,冲击强度由0.99 kJ/m2提高到2.21～2.92 kJ/m2,弯曲强度由67.86 MPa提高到130.11～160.70 MPa,800～400 nm波长范围内透过率均大于80%。
SAN/PMMA composite was prepared via in situ bulk polymerization. The raw materials used to prepare SAN/ PMMA composite was the styrene acrylonitrile （ SAN）, methyl methacrylate （MMA） and benzoyl peroxide （BPO）. The properties of SAN/PMMA composite was studied by fourier transform infrared spectroscopy （FT-IR）, glass transition temperature （θg） , thermal gravimetric （TG） , shore hardness, bending strength,impact strength and visible light transmittance. The research found that SAN could improve the thermal decomposition temperatue and θg of PMMA. High-toughness and high-strength SAN/PMMA transparent composite could be obtained when the dosage of SAN was 20 % to 25 %. Wherein the SAN/ PMMA composite hardness increased from 88 HD to 90 HD,impact strength increased from 0.99 kJ/m2 to 2.21 -2.92 kJ/m2, bending strength increased from 67.86 MPa to 130.11 - 160.70 MPa,transmittance were greater than 80 % in 800 -400 nm wavelength.
出处
《塑料》
CAS
CSCD
北大核心
2013年第1期61-64,共4页
Plastics
