Waste tire rubber powder and agricultural straw filling type plastic-wood composite profile

Abstract

The invention provides a waste tire rubber powder and agricultural straw filling type plastic-wood composite profile, and relates to the field of plastic-wood composite materials. The composition comprises the following components in parts by weight: 60-80 parts of agricultural straw; 20-40 parts of polyethylene glycol terephthalate; 20-40 parts of polyolefin plastic powder; 20-40 parts of waste tire rubber powder; 10-20 parts of gutta-percha; 10-30 parts of starch-coated calcium carbonate; 5-10 parts of polyethylene wax; 1-5 parts of maleic anhydride graft polymer; 0.1-2 parts of silane coupling agent; 1-10 parts of acicular wollastonite; 10-20 parts of reinforcing fibers; 1-5 parts of microencapsulated ammonium polyphosphate; 1-2 parts of rosin pentaerythritol ester; 0.1-1 part of tri (stearic acid) antimony heat stabilizer; and 0.1-1 part of AMB impact modifier. The plastic-wood composite profile has excellent mechanical properties and is flame-retardant and moisture-proof and alsoproves that the addition of the waste tire rubber powder and the eucommia ulmoides gum is greatly beneficial to the improvement of the mechanical properties of the plastic-wood composite profile.

Description

technical field [0001] The invention relates to the field of plastic-wood composite materials, in particular to waste tire rubber powder and agricultural straw-filled plastic-wood composite profiles. Background technique [0002] Wood-plastic material is also called wood-plastic material. It is a new type of composite material that has been booming at home and abroad in recent years. It generally refers to the use of polyethylene, polypropylene, and polyvinyl chloride to replace the usual resin adhesives, with a ratio of more than 35%-70%. The above wood flour, rice husk, straw and other waste plant fibers are mixed into new wood materials, and then processed by extrusion, molding, injection molding and other plastic processing techniques to produce boards or profiles, which are mainly used for building materials, furniture, and logistics packaging. and other industries. The board formed by hot extrusion after mixing plastic and wood powder in a certain proportion is called...

AI Technical Summary

Problems solved by technology

[0004] However, because plastic wood products are poor conductors of heat, under the change of external environment temperature, the surface layer and the interior are heated unevenly, which is easy to generate internal stress, leading to expansion, shrinkage, deformation, etc. The long-term effect will make the plastic wood products The service life is shortened, and severe cases may cause breakage, cracking, etc.

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