Composite material taking two-dimensional bio-based material as skeleton unit and processing technology of composite material

Abstract

The invention relates to a composite material taking a two-dimensional bio-based material as a framework unit and a processing technology of the composite material. The simple and efficient method for producing a novel material with high strength and high cost performance through hot pressing by using kraft paper and the like as a two-dimensional basic structure unit and a framework material for the first time, and by using natural lignin and a synthetic viscous polymer as binding materials, and the invention also a product thereof, the novel low-cost and high-performance composite material which takes a bio-based material as a main body and greatly reduces the use amount of resin or plastic is realized; the strength, the toughness and the internal binding force of the material greatly exceed those of natural materials, plastics, plastic fiber composite materials and high-density fiberboards, and a series of problems that fibers in plastic resin are difficult to disperse, the adding amount is small, and the strength reduction amplitude is large are solved.

Description

Technical field[0001]The present invention relates to the field of biological compounds, and in particular, to a composite material of a two-dimensional bio-based material is a skeleton unit and its processing processes.Background technique[0002]Biomass materials are the fundamental direction of human future development, mostly satisfying environmentally friendly, ecological health, safety and sustainable development requirements. Biomass raw materials are rich, wood or bamboo buildings and furniture have been used for thousands of years. Bamboo, straw, etc. Biomass, due to different size, structural, density university poor, anisotropy, presence and abnormal defects, and utilization has not been high. The papermaking of the four major inventions of our ancient my country realizes the major technical breakthroughs of the plant raw materials to the millimeters of millimeter native mollights, which provide technical and industrial foundations for biomass restructuring. However, the st...

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Problems solved by technology

[0003] The processing method of fiber-plastic composite materials with fiber powder as filler also has problems such as large decrease in plastic strength, poor product toughness, and small amount of addition.

Although the thermocompression molding and blending extrusion molding technology of wood-plastic materials with fibers and plastics as the main components has simple production process, short cycle, high efficiency, stable product quality and low production cost, due to the cellulose in natural fibers, Hemicellulose macromolecules and lignin macromolecules contain a large number of highly polar hydroxyl groups and ether bonds, which are easy to agglomerate. They can be combined with thermoplastic non-polar or polyvinyl chloride (PVC) such as polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC). Weak polar polymers have poor miscibility, difficult to disperse, poor fluidity, difficult to process, mechanical properties, especially low toughness, etc. A series of technical problems that affect the development of wood-plastic materials need to be solved

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