论文部分内容阅读
以H2O2-FeSO4双组分氧化还原体系为引发剂,酶改性玉米淀粉为主链,苯乙烯(St)、丙烯酸丁酯(BA)、甲基丙烯酰氧乙基三甲基氯化铵(DMC)和N-羟甲基丙烯酰胺(NMA)为单体,采用无皂乳液聚合法在玉米淀粉分子上接枝苯丙共聚单体,合成出一种无皂苯丙乳液表面施胶剂,并通过傅里叶变换红外光谱仪(FT-IR)、粒径分析仪、静态接触角和扫描电镜(SEM)对乳液的结构和性能进行了表征。结果表明:当m(单体总量):m(淀粉)为2:1,α-淀粉酶用量0.4%,H2O2用量2.3%,m(St):m(BA)为3,DMC用量1.5%,NMA用量0.3%,表面施胶剂用量为0.5%时,施胶效果最佳。
With H2O2-FeSO4 two-component redox system as initiator, modified corn starch as main chain, styrene (St), butyl acrylate (BA), methacryloyloxyethyl trimethyl ammonium chloride DMC) and N-methylolacrylamide (NMA) as monomers, using soap-free emulsion polymerization to graft styrene-acrylic acid copolymerized monomer onto corn starch molecules to synthesize a soap-free styrene-acrylic emulsion surface sizing agent, The structure and properties of the emulsion were characterized by Fourier transform infrared spectroscopy (FT-IR), particle size analyzer, static contact angle and scanning electron microscopy (SEM). The results showed that when m (monomer) was 2: 1 for m (starch), 0.4% for α-amylase, 2.3% for H2O2, 3 for m , The amount of NMA 0.3%, the amount of surface sizing agent is 0.5%, sizing best.