Wood fiber thermal modified wood-plastic composite device and preparation technology of wood-plastic composite

Abstract

The invention discloses a wood fiber thermal modified wood-plastic composite device. The wood fiber thermal modified wood-plastic composite device comprises an impulse drying barrel, a concentration cyclone, a wood-plastic composite hot pressing device and a hot pressing platform which are sequentially connected, wherein the hot pressing platform is provided with a mold feeding station, a mold conveying device and a mold hot pressing station which are sequentially connected; the impulse drying barrel is connected at the top of the concentration cyclone through a transparent discharge pipe; an upper exhaust pipe is connected in the central height position of the concentration cyclone through a check valve; a vacuum feeding pipe is connected with a mold placed on the mold feeding station, so that dried wood fibers are conveyed; the wood-plastic composite hot pressing device comprises a reciprocating telescopic hot pressing punch, a centrifugal rotary table, a heating unit and a jack support frame which are sequentially arranged from top to bottom; and the mold comprises a mold box body and a piston type cover body which is connected at the top of the mold box body and can extend and retract up and down. According to a thermal modification treatment device, thermal modification performance of a wood-plastic composite is improved, and environmental protection performance and density of the wood-plastic composite are further improved.

Description

Technical field [0001] The invention relates to the technical field, in particular to wood fiber thermally modified wood-plastic composite material equipment and wood-plastic composite material technology. Background technique [0002] Currently, the market sells solid wood flooring, reinforced solid wood flooring, composite flooring, composite reinforced flooring, and PVC coiled flooring. Floors made of solid wood will be deformed when they are damp, they need to be carefully maintained during use, and the installation is cumbersome and easy to be moth-eaten, and they cannot be used outdoors and have poor weather resistance. PVC coiled floor paving needs to be glued and is not suitable for home paving. The visual perception is not as good as solid wood flooring, and the paving is limited. In addition, the laminate floor itself contains formaldehyde. At present, formaldehyde has been proven to cause cancer, and the formaldehyde content must not exceed the national standard. Howe...

AI Technical Summary

Problems solved by technology

The floor made of solid wood will be deformed when it gets wet. It needs to be carefully maintained during use, and the installation is cumbersome and prone to insects. It cannot be used outdoors and has poor weather resistance.

PVC coiled flooring needs to be glued and glued, which is not suitable for home paving. The visual feeling is not as good as that of solid wood flooring, and the paving has great limitations.

In addition, laminate flooring itself contains formaldehyde. Formaldehyde has been proven to cause cancer, and the formaldehyde content is limited to not exceed the national standard. However, it is impossible to completely ban the use of formaldehyde from the processing technology of solid wood and laminate flooring

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