Long-term and stable soybean-based board adhesive and preparation method thereof

Abstract

The invention discloses a long-acting and stable soybean-based substrate adhesive, which is composed of the following raw materials in parts by weight: hydrolyzed polymaleic anhydride 0.7‑1, abietyl alcohol 3‑4, bisphenol A phosphite 2‑3, polyvinyl alcohol 2‑4, defatted soybean flour 170‑200, ferric chloride 0.3‑0.4, ferrous chloride 0.1‑0.2, epichlorohydrin 0.8‑1, N‑methylolacrylamide 2‑ 3. Styrene 16‑20, potassium persulfate 0.1‑0.2, hemicellulase 3‑4, polydiphenylmethane diisocyanate 10‑19, 20‑30% hydrochloric acid solution 60‑70, hydroxystearic acid 0.7 ‑1, butyltin trioctoate 0.1‑0.2, calcium palmitate 2‑3, ethylene bisstearamide 0.8‑1, etc. The invention has the characteristics of not easy to cause equipment corrosion, long application period and storage period, no formaldehyde, low residual monomer content, environmental protection, good water resistance and the like.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a long-acting and stable soybean-based adhesive and a preparation method thereof. Background technique [0002] Aldehyde adhesives are used in the largest amount in wood industry adhesives, but they have many disadvantages: the main raw materials are mostly from non-renewable resources such as petroleum and coal; carcinogens (such as formaldehyde) are continuously emitted during production and use, which will harm the human body Healthy; the product is non-degradable and easy to pollute the environment. Therefore, the research and development of biomass-based adhesives to replace aldehyde-based adhesives has received global attention. Among various biomass materials, soybeans (including genetically modified soybeans) have the characteristics of large yield, low cost, and high plant protein content, and are good raw materials for adhesives; study soybean-based adhesives to make...

AI Technical Summary

Problems solved by technology

[0002] Aldehyde adhesives are used in the largest amount in wood industry adhesives, but they have many disadvantages: the main raw materials are mostly from non-renewable resources such as petroleum and coal; carcinogens (such as formaldehyde) are continuously emitted during production and use, which will harm the human body Healthy; the product is non-degradable and easy to pollute the environment

[0005] The current research methods all focus on modifying the soybean protein in it, but do not involve 40% carbohydrates, causing this component to have no effect on the water resistance of the adhesive after curing, or even have a negative effect, and waste raw materials