胶合板用高温花生粕和低温花生粕蛋白基胶黏剂的制备与表征
Preparation and Characterization of Hot-Pressed Peanut Meal and Cold-Pressed Peanut Meal Protein-Based Adhesives for Plywood
屈阳 1郭芹 1黄雪港 1李甜 1梁蔓竹 1秦晶晶 1张巧真 1刘红芝 1王强1
作者信息
- 1. 中国农业科学院农产品加工研究所 农业农村部农产品加工综合性重点实验室 北京 100193
- 折叠
摘要
[目的]以高温花生粕(HPM)和低温花生粕(CPM)为试验原料,通过变性交联提高胶黏剂的胶接性能和耐水性,为花生粕蛋白基胶黏剂的进一步实际应用提供参考.[方法]采用尿素(U)变性和聚酰胺多胺环氧氯丙烷(PAE)树脂交联两步法制备HPM和CPM蛋白基胶黏剂,并比较其在胶合强度、黏度、官能团、热性能和微观形貌方面的差异.[结果]与未变性交联的HPM和CPM胶黏剂相比,变性交联后HPM和CPM胶黏剂制备的杨木胶合板干态胶合强度分别提高 134.1%和 111.4%,湿态胶合强度分别满足国家标准Ⅰ类和Ⅱ类胶合板要求;变性交联后HPM与CPM胶黏剂黏度分别提高 101.5%和 70.5%,热分解温度分别提高至 316.44 和 307.57℃,且HPM制备的胶黏剂表面最紧密.[结论]变性交联后HPM胶黏剂的胶合强度、耐水性优于CPM胶黏剂,HPM比CPM更适宜作胶黏剂原料.
Abstract
[Objective]Hot-pressed peanut meal(HPM)and cold-pressed peanut meal(CPM)were used as raw materials to improve the bonding performance and water resistance through denaturation and crosslinking.[Method]HPM and CPM protein-based adhesives were prepared by two-step method of urea(U)denaturation and polyamide polyamine epichlorohydrin(PAE)resin crosslinking,and their differences in bonding strength,viscosity,functional groups,thermal properties and micro morphology were compared.[Result]Compared with the pure HPM adhesive and CPM adhesive,the dry shear strength of poplar plywood prepared by the denatured and crosslinked HPM and CPM adhesive was increased by 134.1%and 111.4%respectively.The wet shear strength reached the national class I poplar plywood standard and class II poplar plywood.After denaturation crosslinking,the viscosity was increased by 101.5%and 70.5%,the thermal decomposition temperature was increased to 316.44℃and 307.57℃,respectively.And the adhesive prepared by HPM had the most compact surface.[Conclusion]The adhesive prepared by HPM has better bonding strength and water resistance than CPM adhesive,and HPM is more suitable as adhesive raw material than CPM.
关键词
植物蛋白胶黏剂/高温花生粕/低温花生粕/胶合板/胶合强度/耐水性Key words
plant protein adhesive/hot-pressed peanut meal(HPM)/cold-pressed peanut meal(CPM)/plywood/bonding strength/water resistance引用本文复制引用
基金项目
新疆自治区重点研发计划(2021B02003-3)
中国农业科学院科技创新工程(CAAS-ASTIP-201X-IAPPST)
出版年
2024
国家科技期刊平台
NSTL
万方数据