Wood powder reinforced polyurethane wood-imitation material for furniture and production method thereof

Abstract

The invention discloses a wood powder reinforced polyurethane wood-imitation material for furniture and a production method thereof. The mixture of polyether glycol, foaming agent, catalyst, stabilizing agent and fire retardant serves as a white material, polyisocyanate serves as black material, and wood powder filler with 80-100 meshes serves as the stabilizing agent, wherein, the mass ratio of white material to black material to wood powder is 112:112:7. The production method is as follows: respectively mixing the white material according to ratio to prepare composite polyether; adding wood powder to prepare wood powder/ composite polyether mixture; then, adding the black material to prepare foaming mixture; and after injection molding and curing for 20 minutes, demolding to prepare the wood powder reinforced polyurethane wood-imitation material. The invention has the advantages that the compression strength and the shock resistance of the produced wood-imitation material and products are strengthened, wood texture effect is obvious, and density distribution is improved; the produced wood-imitation material and the product have stable size, small deformation and favorable heat insulation and sound insulation performance and are hard and ageing-resistant; flame retardant property can reach construction B2 grade, the product is environmentally-friendly and has low cost as well as favorable handling characteristics, such as sawing, digging, drilling, nailing, rubbing, sticking, coloring, coating and the like.

Description

technical field [0001] The invention relates to a kind of foamed polyurethane component raw material as the matrix, with wood powder filler as the reinforcing agent, through blending, stirring, foaming, injection molding, aging, demoulding and other processing techniques to manufacture wood powder reinforcement for furniture. Polyurethane imitation wood material and production method thereof. It belongs to the technical field of material and product production. Background technique [0002] In recent years, due to the reduction of timber resources in the world, China's timber resources have decreased faster. On the other hand, with the improvement of people's living standards, human beings have higher and higher requirements for the quantity and quality of timber utilization, and my country can provide Timber resources are very limited, therefore, the contradiction between supply and demand of timber resources is becoming increasingly prominent. At present, there are three ...

AI Technical Summary

Problems solved by technology

First of all, increase the import of timber. In recent years, the number of timber species and countries imported by my country has been increasing. Although imported timber has largely solved the problem of timber shortage in my country, with the worldwide shortage of timber resources, the environment is deteriorating day by day. As well as the enhancement of people's awareness of environmental protection, most countries have adopted certain policy restrictions on timber exports, and if my country has been relying on importing foreign timber resources, it will definitely have an adverse impact on the long-term development of my country's timber industry. It can be seen that imports Timber is not the fundamental solution to the long-term shortage of timber in our country

Secondly, vigorously develop artificial fast-growing forests. Fast-growing forests have relatively high requirements on the growth environment, and vigorous development requires the use of a large amount of cultivated land. my country is originally a large agricultural country with a small land and a large population. This has limited the development of artificial fast-growing forests. degree of limitation

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