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

doi:10.11707/j.1001-7488.LYKX20220609

摘要/Abstract

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。

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

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.

Key words: plant protein adhesive, hot-pressed peanut meal (HPM), cold-pressed peanut meal (CPM), plywood, bonding strength, water resistance

中图分类号:

TQ432
TS229

屈阳,郭芹,黄雪港,李甜,梁蔓竹,秦晶晶,张巧真,刘红芝,王强. 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[J]. 林业科学, 2024, 60(7): 158-164.

Yang Qu,Qin Guo,Xuegang Huang,Tian Li,Manzhu Liang,Jingjing Qin,Qiaozhen Zhang,Hongzhi Liu,Qiang Wang. Preparation and Characterization of Hot-Pressed Peanut Meal and Cold-Pressed Peanut Meal Protein-Based Adhesives for Plywood[J]. Scientia Silvae Sinicae, 2024, 60(7): 158-164.

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参考文献 0

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胶黏剂样品Samples	胶黏剂组成成分质量 Quality of adhesive components/g
胶黏剂样品Samples	HPM	CPM	H₂O	U	PAE
HPM	100		300
HPM-U	100		300	4
HPM-U-PAE	100		300	4	82
CPM		100	300
CPM-U		100	300	4
CPM-U-PAE		100	300	4	82

胶黏剂种类 Adhesive type	成本构成Cost composition
胶黏剂种类 Adhesive type	原料 Raw materials	U	PAE	水电 Water and electricity	成本Cost
HPM-U-PAE	4 390	14 146.3	9 756.1	11.3	2 663
CPM-U-PAE	5 268	14 146.3	9 756.1	11.3	2 843
SM	—	—	—	—	5 500

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