| 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 |
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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 |
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| 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)。 |
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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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