Micro-foaming hollow structural plate and processing technique thereof

Abstract

The invention discloses a micro-foaming hollow structural plate and a processing technique thereof. The plate is prepared from the following raw materials in percentage by weight: 8-10% of biodegradable resin, 2-3% of a foaming agent, 70-80% of plant fiber and 10-20% of inorganic powder. The processing technique comprises the following steps: (1) preparing raw materials according to the formula; (2) mixing and extruding biodegradable resin, plant fiber and inorganic powder under the condition that the temperature is 90-120 DEG C to obtain a modified plant fiber composite base stock; (3) adding the foaming agent into the modified plant fiber composite base stock after the modified plant fiber composite base stock cools down; (4) putting the modified plant fiber composite base stock containing the foaming agent into a co-rotating parallel double-screw device for low-temperature high shearing, micro-foaming extruding, sizing and cutting to obtain the micro-foaming hollow structural plate, The micro-foaming hollow structural plate has the advantages of being high in strength, good in tenacity, low in density, recyclable in leftover materials and the like.

Description

technical field [0001] The invention belongs to a board, in particular to a board with a slightly hollow structure and a processing technology thereof. Background technique [0002] At present, a large number of industrial products, daily necessities and food in the world are mostly packed in cartons (including corrugated boxes) made of cardboard or paper, which will cause tens of millions of trees to be felled every year around the world. Deforestation will cause environmental degradation and reduction of species diversity, resulting in climate change and geographical environment change. Deforestation, if not followed by adequate reforestation, can lead to soil and water damage, climate change, loss of species diversity and reduced quality of life. Since the middle of the 19th century, around 1852, the earth has experienced unprecedented deforestation, forests in Europe are being eroded by acid rain, and very large areas of forests in Siberia have been converted to arable ...

AI Technical Summary

Problems solved by technology

These processes have brought inconvenience to the secondary molding of the manufacturer, and the leftovers of the product often cannot be recycled directly

Moreover, ordinary inorganic masterbatches are difficult to plasticize in general extrusion processes, so the produced hollow structural plates are difficult to meet the needs of practical applications in terms of strength, toughness, specific gravity, etc., and due to the large amount of polyolefin plastics The use will also cause a lot of "white pollution" to the environment

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