装饰原纸用自乳化苯乙烯丙烯酸酯表面处理剂的制备及表征（英文）

发布时间：2018-03-25 22:15

本文选题：自乳化苯乙烯丙烯酸酯　切入点：装饰原纸　出处：《林业科学》2015年03期

【摘要】：【目的】采用乳液聚合法,制备一种自乳化苯乙烯丙烯酸酯(SAE)表面处理剂。在苯乙烯丙烯酸酯乳液的制备过程中,引入带有亲水性羧基的丙烯酸作为乳化剂,丙烯酸既与其他单体发生交联反应,赋予最终产品良好的机械强度,其羧基的存在又赋予最终产品一定的亲水性。这样既可保证传统表面处理对装饰原纸纸张性能、尤其是关键参数适印性的提高,又能保持装饰原纸的吸收性。【方法】采用苯乙烯(St)、丙烯酸丁酯(BA)、甲基丙烯酸甲酯(MMA)为主要单体,引入丙烯酸(AA)为功能单体,制备自乳化型苯乙烯丙烯酸酯乳液用作装饰原纸表面处理剂,考察丙烯酸用量、引发剂用量以及硬、软单体质量比对乳液性能及表面处理效果的影响,使用扫描电子显微镜(SEM)、显微红外光谱仪、激光粒度仪、旋转黏度计、电荷密度测试仪等对所制乳液进行表征。【结果】当丙烯酸用量为8wt%、引发剂(过硫酸铵)用量为0.3%、m St/m BA为1.5∶1时,所制乳液性能优良,乳液粒径130 nm左右,黏度20 m Pa·s,电荷密度0.7 mmol·L-1。装饰原纸经所制乳液配制表面处理剂处理后,纸页表面形成一层膜,且有羧基存在;在吸收性保持的前提下,装饰原纸的适印性显著改善。【结论】引入带有亲水性、反应性羧基的丙烯酸作为功能单体制备苯乙烯丙烯酸酯类装饰原纸表面处理剂,有别于传统的表面处理剂,同时解决了提高装饰原纸表面性能、适印性,且保证装饰原纸吸收性两大难题,是改善装饰原纸产品品质的一种有效的方法。
[Abstract]:[objective] to prepare a self-emulsifying styrene-acrylate (SAE) surface treating agent by emulsion polymerization. In the preparation of styrene-acrylate emulsion, acrylic acid with hydrophilic carboxyl group was introduced as emulsifier. Acrylic acid not only reacts with other monomers, endows the final product with good mechanical strength, but also endows the final product with hydrophilicity in the presence of carboxyl group, which can ensure the performance of decorative base paper by traditional surface treatment. Especially the improvement of the printability of the key parameters can keep the absorbability of decorative base paper. [methods] Styrene, butyl acrylate, methyl methacrylate (MMA) were used as main monomers, and acrylic acid (AAA) was introduced as functional monomers. Self-emulsified styrene-acrylate emulsion was prepared as a surface treatment agent for decorative base paper. The effects of the amount of acrylic acid, the amount of initiator and the mass ratio of hard and soft monomers on the properties and surface treatment of the emulsion were investigated. Using a scanning electron microscope (SEM), a micro infrared spectrometer, a laser particle size meter, a rotary viscometer, [results] when the amount of acrylic acid was 8 wts and the amount of initiator (ammonium persulfate) was 0.3m St/m BA = 1.5: 1, the emulsion had excellent properties, and the size of emulsion was about 130nm. Viscosity 20 MPA s, charge density 0.7 mmol L-1.After treated with the prepared emulsion, a film was formed on the surface of the paper with carboxyl groups. [conclusion] the acrylic acid with hydrophilic and reactive carboxyl group was introduced as functional monomer to prepare styrene-acrylate decorative base paper surface treatment agent, which is different from the traditional surface treatment agent. It is an effective method to improve the quality of decorative base paper products by solving the two major problems of improving the surface performance, printability and absorbability of decorative base paper.
【作者单位】：中国林业科学研究院林业新技术研究所;
【基金】：National Nonprofit Institute Research Grant of CAF(CAFINT2012C02)
【分类号】：TS727

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