CAJ | 학술논문

采用同向双螺杆挤出机熔融挤出制备甲基丙烯酸缩水甘油酯（GMA）接枝苯乙烯-丁二烯嵌段共聚物（简称K树脂）（K-g-GMA），用傅里叶变换红外光谱和酸碱滴定法对K-g-GMA进行表征并测定其接枝率，分析了GMA用量对K-g-GMA接枝率及熔体流动速率的影响。将K-g-GMA添加到K树脂与苯乙烯-丙烯腈共聚物（SAN）共混体系中，采用熔融共混法制备了K/SAN透明合金。结果表明：随着GMA用量的增加，K-g-GMA的接枝率逐渐升高，当GMA用量为4phr时，接枝率最高，熔体流动性较好。当K树脂与SAN质量比为15∶85，w（K-g-GMA）为3%时，与未加K-g-GMA相比，透明合金的拉伸强度、悬臂梁无缺口冲击强度和透光率分别提高6.08%，25.72%，0.92%。
채용동향쌍라간제출궤용융제출제비갑기병희산축수감유지（GMA）접지분을희-정이희감단공취물（간칭K수지）（K-g-GMA），용부리협변환홍외광보화산감적정법대K-g-GMA진행표정병측정기접지솔，분석료GMA용량대K-g-GMA접지솔급용체류동속솔적영향。장K-g-GMA첨가도K수지여분을희-병희정공취물（SAN）공혼체계중，채용용융공혼법제비료K/SAN투명합금。결과표명：수착GMA용량적증가，K-g-GMA적접지솔축점승고，당GMA용량위4phr시，접지솔최고，용체류동성교호。당K수지여SAN질량비위15∶85，w（K-g-GMA）위3%시，여미가K-g-GMA상비，투명합금적랍신강도、현비량무결구충격강도화투광솔분별제고6.08%，25.72%，0.92%。
The?copolymer?of?glycidyl?methacrylate(GMA)?grafting?styrene?and?butadiene?block?copolymer?(referred?to?as?K?resin)(K-g-GMA)?was?prepared?by?melting?extrusion?with?a?co-rotating?twin-screw?extruder.?The?character?and?grafting?ratio?of?K-g-GMA?were?studied?by?Fourier?transform?infrared?spectroscopy?(FTIR)?and?acid-base?titration.?The?effects?of?GMA?content?on?the?grafting?ratio?and?the?melt?flow?rate?of?K-g-GMA?were?studied.?The?grafted?copolymer?was?added?to?the?blending?system?of?K?resin?and?styrene-acrylonitrile?copolymer?(SAN),and?the?K/SAN?transparent?alloy?was?prepared?by?melt?blending?process.?The?results?show?that?the?grafting?ratio?of?K-g-GMA?is?increased?with?the?increase?of?GMA?content.?The?grafted?copolymer?has?the?highest?grafting?ratio?and?therefore?good?fluidity?of?its?melt?when?the?content?of?GMA?is?4?phr.?When?the?mass?ratio?of?K?resin?to?SAN?is?15∶85?and?mass?percentage?of?K-g-GMA?is?3%,the?tensile?strength,Izod?notched?impact?strength?and?transmittance?of?the?transparent?alloy?are?increased?by?6.08%,25.72%,0.92%,respectively?in?comparison?with?those?of?the?alloy?without?K-g-GMA.