Asbestos fiber reinforced thermoplastic base wood and plastic composite material and preparing method thereof

Abstract

The invention belongs to the field of building material, in particular to a wood and plastic composite material, a preparing method and application thereof. The asbestos fiber reinforced thermoplastic base wood and plastic composite material is prepared from the following raw materials by weight percentage: 20%-45% of plastic, 30%-60% of wood powder, 5%-30% of asbestos fiber, 0.5%-3% of coupling agent, 0-2% of plastizer, 0-2% of stabilizer, and 0-4% of lubricant. The processed wood and plastic composite material has mechanical property higher than that of the wood and plastic material singly using the coupling agent, various mechanical property indexes being equal or exceeding that of the wood and plastic material simultaneously reinforced by using the coupling agent and the glass fiber, and cost greatly lower than that of the coupling agent and the glass fiber used at present, and can be widely applied to the fields of buildings, automobiles, transportation, aerospace and military; after discard, the product processed by the asbestos fiber reinforced thermoplastic base wood and plastic composite material can be used as a raw material to be reprocessed profiles through removing surface contaminants and crushing, therefore, the invention has the advantages of repetitive reutilization and wide popularization and application prospect.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to a nanocomposite material, in particular to a wood-plastic composite material and its preparation method and application. Background technique [0002] Due to the dwindling of forest resources and oil resources in the world, a new type of building decoration material - wood-plastic composite material began to develop rapidly in the 1990s. Wood-plastic composite material is a new type of building material mainly composed of wood fiber and plastic through extrusion, hot pressing or injection. The advantages of secondary recycling are widely used as a substitute for solid wood materials or pure plastic materials in indoor furniture, park chairs, seaside boardwalks and villa fences, and are gradually promoted and used in fields other than the construction industry, such as the automobile industry , transportation industry, aviation industry and military industry and other fields. The...

AI Technical Summary

Problems solved by technology

Although the compatibility between wood fibers and plastics has been improved to a certain extent and the mechanical properties of wood-plastic composites have been improved by adding coupling agents and glass fiber reinforced materials, it has also brought some new problems, such as : (1) The price of the coupling agent is relatively expensive. Although the mass percentage of the coupling agent in the wood-plastic system only accounts for 1% to 3%, it accounts for about 30% of the total cost; (2) Experiments show that simply using The reinforcing effect of the coupling agent is limited, only about 20%; (3) while using the coupling agent, glass fiber is used as the reinforcing material, and the reinforcing effect is better than that of using the coupling agent alone, but the price of glass fiber is also relatively Expensive; (4) As the prices of various industrial raw materials at home and abroad continue to rise, the prices of glass fibers and coupling agents will continue to increase