交联型聚乙烯醇纸张表面施胶剂的制备及其应用  

Preparation and application of cross-linked polyvinylalcohol paper surface sizing agent

作　　者：费贵强 李实 肖文娟[2] 杨晨榕 解攀 FEI Gui-qiang;LI Shi;XIAO Wen-juan;YANG Chen-rong;XIE Pan(College of Chemistry and Chemical Engineering,Shaanxi Key Laboratory of Chemical Additives for Industry,Shaanxi University of Science&Technology,Xi′an 710021,China;Xi′an North Huian Chemical Industries Co.,Ltd.,Xi′an 710302,China)

机构地区：[1]陕西科技大学化学与化工学院陕西省轻化工助剂重点实验室,陕西西安710021 [2]西安北方惠安化学工业有限公司,陕西西安710302

出　　处：《陕西科技大学学报》2025年第1期1-7,共7页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(22078189)。

摘　　要：为了改善聚乙烯醇、淀粉作为纸张表面施胶剂的应用性能,选用γ-缩水甘油醚氧丙基三甲氧基硅烷(KH560)和硼砂(STB)为交联剂,交联改性淀粉(PS)和聚乙烯醇(PVA1799),制备出不同交联程度的纸张表面施胶剂(CPSn-PVA).通过傅里叶红外光谱(FT-IR),扫描电镜(SEM)及稳定性测试对纸张表面施胶剂的性能进行了表征,探讨了KH560和STB的添加比例对纸张施胶剂的性能以及施胶后纸张物理性能的影响.实验结果表明,当STB添加量为0.1 g、KH560添加量为3 g时,纸张施胶剂膜拉伸强度可达25.6 MPa、断裂伸长率为326%.同时,与原纸相比,多重交联型纸张表面施胶剂表现出良好的应用性能,施胶后的纸张耐折次数、撕裂指数、接触角分别提升了6700%、65.04%、89.7%.In order to improve the application performance of polyvinyl alcohol and starch as sizing agents on the surface of paper,Paper surface sizing agents(CPSn-PVA)with different degrees of crosslinking were prepared by using γ-glycidyl etheroxy propyltrimethoxypropyl silane(KH560)and borax(STB)as crosslinking agents,and crosslinking modified starch(PS)and polyvinyl alcohol(PVA1799).The properties of the paper surface sizing agent were characterized by Fourier transform infrared spectroscopy(FT-IR),scanning electron microscopy and stability testing,and the effects of the addition ratio of KH560 and borax on the performance of the paper surface sizing agent and the physical properties of the paper after sizing were discussed.The experimental results show that when the addition amount of borax is 0.1 g and the addition amount of KH560 is 3 g,the tensile strength of the adhesive film can reach 25.6 MPa,and the elongation at break is 326%.At the same time,the multi crosslinked PVA1799 paper surface sizing agent showed good application performance.Compared with the original paper,the paper′s folding enderance,tearing index and contact angle increased by 6700%,65.04%,and 89.7%respectively after sizing.

关 键 词：表面施胶剂 改性淀粉 聚乙烯醇 硅烷偶联剂 稳定性 耐折度 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]