紫胶改性的研究  

STUDY ON THE MODIFICATION OF SHELLAC

作　　者：李绍家[1] 刘凤书[1] 杨海云 易鹏[1] 邓疆[1] 

机构地区：[1]中国林业科学研究院资源昆虫研究所

出　　处：《林业科学研究》1989年第3期277-280,共4页Forest Research

摘　　要：本文介绍了用单宁酸、松香钙、草酸、脲醛树脂等物质对紫胶片进行改性的研究过程和结果。在大量试验的基础上,证明用单宁酸和松香钙对紫胶进行改性,能够提高其耐热性能和附着力;用脲醛树脂进行改性,能提高紫胶的耐腐蚀性能;用草酸改性,可以改善紫胶的颜色。研制出的改性紫胶漆膜,经盐雾试验,结果表明其耐盐雾腐蚀的能力提高了1.38倍。The paper deals with the research on the modification of shellac by the utilization of tannic acid, rosinate calcium, oxalic acid and ureaformaldehyde resin. Through a lot of tests, the results hsvc shown that the heat resistance and adhesive force of shellac were enhanced by adding tannic acid and rosinate calcium; that the corrosion resistance of shellac was increased by adding ureaformaldehyde resin; that the colour of shellac was improved by adding oxalic acid. The result of 'salt-fog' experiment has shown that the corrosion resistance of coat of lac paint was increased by 1.38 times.

关 键 词：紫胶 改性 漆膜 紫胶片 

分 类 号：S759.2[农业科学—森林经理学]