期刊论文

Application of Nano Carboxymethyl Starch in Micro Weight Coated Paper

中文

林产化学与工业

0253-2417

2017

37

5

107-112

10.3969/j.issn.0253-2417.2017.05.014

国家自然科学基金资助项目（31500495） 湖南省自然科学基金资助项目（14JJ3085）

本校为第一机构

采用双螺杆挤压技术制备了纳米羧甲基淀粉(NCMS),并研究其作为涂布胶黏剂用于微量涂布纸的性能,结果表明:颗粒达纳米级,且颗粒平面较平整;NCMS和氧化淀粉均为负电性,且NCMS的负电荷密度较低;NCMS具有优良的成膜性,且膜强度高,拉伸强度4.67 MPa,断裂伸长率为26.9%。NCMS取代氧化淀粉制备轻涂纸涂料,能显著提高涂料的保水性能,当NCMS用量14%时,涂料的保水值为43.6 g/m~2,涂布纸的印刷表面强度为0.89 m/s,纸页的纵向抗张指数为47.8(N·m)/g,横向抗张指数为21.7(N·m)/g,油墨吸收性为36.8%,印刷光泽度61%。与20%普通氧化淀粉相比,保水性能提高25.3%,涂料的黏度下降12.4%,制得的涂布纸的印刷表面强度...

In this study, the nano carboxymethy starch (NCMS) was prepared by dual screw extrusion and was used as coating adhesive in micro weight coated paper (MWC). The results showed that the surface of NCMS particle was smooth and it had excellent film-forming and high film strength. The tensile strength of film can reach to 4.67 MPa, breaking elongation 26.9%. The negative charge density of NCMS is lower than that of common oxidized starch. For the paper coating formula of micro weight coated paper, when the dosage of NCMS used as the coating adhesi...