摘要
通过粒径分布、FTIR和分子量等分析对新型水性丙烯酸二级分散体进行了表征,并从中试关键工艺、水性丙烯酸二级分散体性能及涂膜性能等3方面对新型水性丙烯酸二级分散体的中试工艺及性能进行了研究。结果表明,中试水性丙烯酸二级分散体的粒径均比小试的大;小试、中试水性丙烯酸二级分散体的FTIR图谱基本一致,均为苯丙型丙烯酸树脂水分散体;第2次中试的水性丙烯酸二级分散体的性能指标基本接近小试的测试结果;中试水性丙烯酸二级分散体制漆后,干性和耐水性均较小试下降;粒径和分子量是影响水性丙烯酸二级分散体的主要因素,中试的初始导热油温度应控制在130~135℃,以保证较小的粒径和较大的分子量。
We characterized the novel waterborne acrylic secondary dispersion by particle size distribution analysis,FTIR analysis,and molecular weight analysis.Moreover,we studied the pilot scale process and performance of the novel waterborne acrylic secondary dispersion from three aspects:the key process of pilot scale test,the performance of waterborne acrylic secondary dispersion,and the film property.The results show that the particle size of the waterborne acrylic secondary dispersion in pilot scale test is larger than that in lab-scale test.The FTIR spectra of the waterborne acrylic secondary dispersion in lab-scale test and pilot scale test are basically the same,both being styrene acrylic resin aqueous dispersion.The performance indexes of waterborne acrylic secondary dispersion in the second pilot scale test are basically close to the experimental results of the lab-scale tests.In addition,the dryness and water resistance of waterborne acrylic secondary dispersion paint are lower than those of lab-scale tests.Particle size and molecular weight are the main factors affecting the waterborne acrylic secondary dispersion.The initial heat transter oil temperature in the pilot scale test should be controlled at 130-135℃to ensure smaller particle size and higher molecular weight.
作者
问娟娟
刘浪浪
WEN Juanjuan;LIU Langlang(Collaborative Innovation Center of Green Manufacturing Technology for Traditional Chinese Medicine in Shaanxi Province,School of Pharmacy,Shaanxi Institude of International Trade&Commerce,Xianyang 712046,China;School of Chemistry and Chemical Engineering,Shaanxi Normal University,Xi′an 710119,China;Shaanxi Baotashan Paint Co.,Ltd.,Xingping 713100,China)
出处
《化学与生物工程》
CAS
北大核心
2024年第3期58-62,共5页
Chemistry & Bioengineering
基金
陕西省科协企业创新争先青年人才托举计划项目(2020-4-1)
陕西国际商贸学院2022年科学研究项目(SMXY202217)
2023年陕西省大学生创新创业训练计划项目(S202313123033)。
关键词
水性丙烯酸二级分散体
小试
中试
工艺分析
温度控制
waterborne acrylic secondary dispersion
lab-scale test
pilot scale test
process analysis
temperature control
