Method for manufacturing self-plasticizing bamboo board

Abstract

The invention discloses a method for manufacturing a self-plasticizing bamboo board. The method comprises the following steps of (1) material preparation: crashing a bamboo material into bamboo powder with a size of 20-200 meshes, uniformly mixing the bamboo powder and plasticizing initiator according to a mass ratio of m bamboo powder to m plasticizing initiator being equal to 100 to 0.1 to 100 to 0.4, obtaining a bamboo powder raw material; (2) self-plasticizing molding: uniformly placing the bamboo powder raw material in a stainless steel die, and then rising the temperature and increasing the pressure, when the temperature rises at 160 to 200 DEG C, and when the pressure is increased at 9 to 21 MPa, keeping the pressure and temperature for 10 to 90 min, and then keeping the pressure, stopping heating, slowly cooling to a room temperature, relieving the pressure, obtaining the self-plasticizing bamboo board. The method provided by the invention can be easily realized, the operation is convenient, the production cost is low, thus, the method is suitable for being used for large-scale production; and moreover, the processing and utilization routes of the bamboo material are widened, and larger utilization of bamboo material resources is realized simultaneously.

Description

technical field [0001] The invention relates to a method for manufacturing self-plasticized bamboo boards, in particular to a method for using bamboo to manufacture self-plasticized bamboo boards. Background technique [0002] Bamboo is one of the world-renowned fast-growing and high-yield plants, and it is also one of the first-selected fast-growing afforestation plants in tropical and subtropical regions. At present, bamboo is mainly distributed in Asia, America, Africa and other places, especially China, India, Japan, Myanmar and other countries plant a large number of bamboo plantations, with an area of ​​20 million hectares and an annual output of 18 million tons of bamboo. There are more than 130 counties (cities) with a bamboo forest area of ​​more than 10,000 hectares in my country, with a total area of ​​7 million hectares. Bamboo plantations have a short period of maturity, high output, straight stems, dense materials, and slender fibers. The main products include...

AI Technical Summary

Problems solved by technology

[0004] In the field of wood (bamboo) plasticization processing, there are mainly two technical routes: one is to impregnate the resin into the wood or bamboo, and rely on the plasticity of the resin to promote the plasticization of the wood or bamboo. The porosity of the wood is high, and the resin is easy to immerse. , the plasticizing effect is good, but the bamboo material is dense, and the resin is difficult to immerse, resulting in poor plasticizing effect of the bamboo material; the second is to mix the plastic and wood (bamboo) evenly, and form them by extrusion, molding, injection and other processes, that is, wood-plastic composite wood or bamboo-plastic composites, and the developed bamboo-plastic composites are difficult to be industrialized due to poor interface fusion. At the same time, the amount of plastic added is at least 30%, and the price is 2 to 5 times that of wood and bamboo raw materials, resulting in a substantial increase in cost. Product value increase is not obvious