相关实验视频
Updated: Jul 5, 2025

Preparation and Testing of Plant Seed Meal-based Wood Adhesives
Published on: March 5, 2015
制备,表征和应用水性素基环氧树脂作为环保木材粘合剂
Meiyu Huo1, Jian Chen1, Can Jin1
1Institute of Chemical Industry of Forest Products, CAF, Key Lab. of Biomass Energy and Material, Jiangsu Province, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing 210042, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources of Jiangsu Province, Nanjing 210037, China.
新型水性基环氧树脂乳液 (WLEPs) 为高性能木材粘合剂提供无甲溶液. 这些可持续的WLEP显示出出色的稳定性和粘合性,符合外部级合板标准.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续材料 可持续材料
背景情况:
- 传统的木材粘合剂通常含有甲,造成环境和健康问题.
- 作为一种可再生生物聚合物,宁为开发环保粘合剂替代品提供了机会.
- 开发高性能,水性和无甲木材粘合剂对于可持续建筑至关重要.
研究的目的:
- 为了合成和表征新型的水borne lignin 基环氧树脂乳液 (WLEPs).
- 评估WLEP作为用聚胺 (PA) 固化后的无甲木材粘合剂的性能.
- 研究乳化剂特性对产生的粘合剂的热和机械特性的影响.
主要方法:
- 用不同的聚乙烯糖醇 (PEG) 链长度合成WLEPs.
- 描述WLEP乳液特性,包括储存稳定性,粘度和颗粒大小.
- 用PA固化WLEPs以形成木材粘合剂.
- 粘合性质的评估:拉伸强度,扬模和合板的粘合性能.
主要成果:
- WLEP分散物表现出优异的存储稳定性 (>180天) 和适合木材粘合剂应用的粘度和颗粒大小.
- 通过调整 PEG 链长度来调整粘合性能,PEG 6000 产生了最高的抗拉强度 (24.0 MPa) 和Young 的模量 (1439 MPa).
- 用WLEP基粘合剂粘合的合板表现出优越的耐水性,超过了对外置级I型合板的国家标准.
结论:
- WLEP是有效的无甲木材粘合剂,具有调节性质和出色的性能.
- 开发的WLEP为传统的甲基木材粘合剂提供了一个可持续的替代品.
- 这些基于素的粘合剂在合板制造和其他木材粘合需求中的实际应用具有显著的潜力.
相关概念视频
Wood Products
Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
Seasoning of Wood
Achieving equilibrium moisture content is the goal of seasoning; this is the point where the wood's moisture content stabilizes to align with the moisture levels of the surrounding environment. Proper...
Wood Panel Products
Wood Surfacing
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
Introduction to Wood
The structural integrity of the...
Waterproofing and Anti-Bacterial Admixtures in Concrete
Waterproofing admixtures render concrete hydrophobic,...

