文章摘要
曾湘楚.醇溶性疏水交联型丙烯酸酯环保胶粘剂的制备与表征[J].精细化工,2021,38(7):0
醇溶性疏水交联型丙烯酸酯环保胶粘剂的制备与表征
Preparation and characterization of alcohol-solubility hydrophobic crosslinked acrylate environmental adhesive
投稿时间:2020-12-17  修订日期:2021-02-25
DOI:
中文关键词: 醇溶性  聚丙烯酸酯  胶粘剂    疏水交联  环保
英文关键词: alcohol-solubility  polyacrylate  adhesive  film  hydrophobic crosslinked  environmental
基金项目:国家自然科学基金项目(31670596);陕西省重点实验室项目(12JS019)
作者单位E-mail
曾湘楚 陕西科技大学化学与化工学院 1432980350@qq.com 
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中文摘要:
      以乙醇为溶剂,N,N'-亚甲基双丙烯酰胺为交联单体,丙烯酸十八酯为长链疏水单体通过溶液聚合制备了一种丙烯酸酯环保胶粘剂,测试了聚合物的核磁、红外、分子量、扫描电镜、热重、接触角等。研究了反应时间、反应温度、交联单体、疏水单体对聚合物的影响,最佳硬软单体配比以及聚合物膜的物理性能。当反应时间4 h,反应温度80 ℃,交联单体1 %(以单体的总质量为基准,下同),硬软单体比为2:1~3:1时,聚合物重均分子量为12.86×104,热分解温度为309.3 ℃,玻璃化转变温度为85.2 ℃,胶膜硬度达到4 H。疏水单体的加入提高了聚合物膜的拉伸强度和疏水性能,加入3 %疏水单体后,胶膜的拉伸强度提高了36.38 %,达到0.789 MPa;接触角提高219.5 %,达到78.6 °。由于乙醇易挥发、快速渗透和无污染,制备的环保型胶粘剂可用于含沙土壤的固化以及沙画、沙瓶画和浮雕画的固定等。
英文摘要:
      An acrylate environmental adhesive was prepared by solution polymerization which used ethanol as solvent and N,N'-Methylenebisacrylamide(MBA) as crosslinking monomer,octadecyl acrylate as long-chain hydrophobic monomer,the NMR, IR, GPC, SEM, TGA and contact angle of the polymer were tested.Effects of reaction time,reaction temperature,crosslinking monomer and hydrophobic monomer on polymer,the optimal ratio of hard to soft monomer and the physical properties of the polymer film were studied.When reaction time was 4h,reaction temperature was 80 ℃,crosslinking monomer was 1 % (basd on the total mass of monomers,the same below),hard to soft monomer was 2:1~3:1,the molecular average weight of polymer was 12.86×104,thermal decomposition temperature was 309.3 ℃,glass transition temperature was 85.2 ℃ film,hardness reached to 4 H.With the addition of hydrophobic monomer,tensile strength and hydrophobicity of polymer film enhanced,when hydrophobic monomer was 3 %,tensile strength was 0.789 Mpa which improved 36.37 %,contact angle was 78.6 °,which improved 219.5 %.The prepared adhesive could be used for the solidification of sand soils and the fixation of sand panting,sand bottle drawing and relief painting for the effumability,fast permeability and no-pollution of ethanol.
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