基于因子设计的低温快干卷烟接嘴水基胶的制备

Preparation of water-based adhesive for low-temperature fast-drying cigarette filters based on factor design

【目的】降低接嘴胶的玻璃化转变温度。【方法】选取乳化剂、增塑剂及3种聚合单体的配比为试验因子,采用因子设计法探究各因子及其交互作用对玻璃化转变温度的影响规律,并制备出低温快干接嘴胶。【结果】①乳化剂及3种单体的配比是影响接嘴胶玻璃化转变温度的主要因子,且乳化剂与乙酸乙烯酯(VAc)和丙烯酸(AA)、丙烯酸丁酯(BA)与AA间存在交互作用;②在试验所涉及的水平范围内,玻璃化转变温度随着BA及乳化剂用量增加而降低,随着VAc及AA用量的增加而升高;③乳化剂、VAc、BA及AA的配比分别为5.50%、24.00%、12.00%、0.40%时,接嘴胶的玻璃化转变温度可降至-1.83℃,95%置信水平下的置信区间为(-6.44,2.79)℃。【结论】采用因子设计法对水基胶主要原料的配比进行优化,能明显降低接嘴水基胶的玻璃化转变温度。

To lower the glass transition temperature of water-based adhesive,the ratios of emulsifier,plasticizer and three polymeric monomers were selected as the experimental factors.The influence of various factors and their interaction on the glass transition temperature was explored by factorial design method,and the low-temperature fast-drying water-based cigarette filter adhesive was prepared.The experimental results show that:①the ratios of emulsifier and three monomers were the main factors affecting the glass transition temperature of water-based filter adhesive,and there was an interaction between the emulsifier and vinyl acetate(VAc)and acrylic acid(AA),and between butyl acrylate(BA)and AA.;②within the range of the experiment,the glass transition temperature decreased with the increase of Ba and emulsifier dosage,and increased with the increase of VAC and AA dosage;③when the ratio of emulsifier,VAC,Ba and AA was 5.50%,24.00%,12.00%and 0.40%,respectively,the glass transition temperature of water-based fitler adhesive could be reduced to-1.83℃,and the confidence interval under 95%confidence level was(-6.44,2.79)℃.