倪书振,王春俭,林凌蕊,刘祝兰,吴伟兵,戴红旗.聚乙烯亚胺改性KH560作为纸基材料表面施胶增强剂的研究[J].中国造纸学报,2019,34(1):15-20 本文二维码信息
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聚乙烯亚胺改性KH560作为纸基材料表面施胶增强剂的研究
Improving the Strength and Hydrophobicity of Fiber Material by Polyethyleneimine Modified KH560
  
DOI:10.11981/j.issn.1000-6842.2019.01.15
中文关键词:  聚乙烯亚胺  KH560  抗张强度  疏水性  湿抗张强度
Key Words:PEI  KH560  tensile strength  hydrophobicity  wet tensile strength
基金项目:江苏省科技计划重大项目(BE2018129);国家自然科学基金(No.31770417);江苏省研究生培养创新工程项目(No.KYCX17_0837)。
作者单位
倪书振 南京林业大学林业资源生物化学加工学科综合训练中心江苏南京210037 
王春俭 南京林业大学林业资源生物化学加工学科综合训练中心江苏南京210037 
林凌蕊 南京林业大学林业资源生物化学加工学科综合训练中心江苏南京210037 
刘祝兰 南京林业大学林业资源生物化学加工学科综合训练中心江苏南京210037 
吴伟兵 南京林业大学林业资源生物化学加工学科综合训练中心江苏南京210037 
戴红旗* 南京林业大学林业资源生物化学加工学科综合训练中心江苏南京210037 
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中文摘要:
      利用聚乙烯亚胺(PEI)与γ-缩水甘油醚丙基三甲氧基硅烷(KH560)反应制得表面施胶增强剂PEI-KH560,并对其施胶性能和增强性能进行了考察。结果表明,PEI-KH560能够显著改善手抄片的物理性能和疏水性能。与空白样相比,当PEI-KH560用量为1.35%时,手抄片的干、湿抗张指数分别提高了33.9%和61.8%,表面接触角由53.4°提高至69.8°,Cobb60值降低了24.3%,手抄片表面由高度亲水性转变为具有一定的疏水性。PEI-KH560增强了手抄片纤维间的结合强度,改善了手抄片的强度性能,同时赋予手抄片疏水性能。
Abstract:
      A novel surface sizing agent PEI-KH560 was prepared through a simple reaction using polyethyleneimine (PEI) and KH560.The physical properties and hydrophobicity of the dried handsheet were determined after impregnating in PEI-KH560.The results showed that when the dosage of PEI-KH560 was 1.35%, the dry tensile index and wet tensile index of handsheet increased by 33.9% and 61.8%, respectively.The surface of the handsheet changed into hydrophobic surface from high hydrophilic surface, and the surface contact angle increased from 53.4° to 69.8°, the Cobb60 value decreased by 24.3%. It is indicated that PEI-KH560 enhanced the bonding strength between fibers, and played a positive role in improving the strength and hydrophobicity of the paper.
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