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Cabo wood-plastic composite and preparation process thereof

A wood-plastic composite material and tobacco stem technology, which is applied in the field of wood-plastic composite materials and their preparation, can solve the problems of unutilized and unseen plant fibers, and can increase water vapor barrier properties and ray barrier properties, and enhance water resistance. and UV resistance, the effect of improving material properties

Inactive Publication Date: 2013-02-06
张志明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the extraction process of tobacco stems is mature (patent publication numbers CN99105952.2, 97111061), simple, safe and environmentally friendly, so that the comprehensive utilization of tobacco stems can be achieved, but the plant fibers in tobacco stems have not been utilized, and how to extract the plant fibers in Related technical reports on the application of wood-plastic composite materials have not yet been seen

Method used

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  • Cabo wood-plastic composite and preparation process thereof
  • Cabo wood-plastic composite and preparation process thereof
  • Cabo wood-plastic composite and preparation process thereof

Examples

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Effect test

Embodiment 1、 Embodiment 2、 Embodiment 3

[0026] According to the formula of the tobacco stem wood-plastic composite material shown in Table 1, put the tobacco stems into a 2.5% sodium hydroxide aqueous solution, pass in steam to make the temperature 70-80°C, and soak for 120 minutes to remove the tobacco stems. The tar, nicotine and water-soluble matter are naturally dried to make the water content less than 8%, and the tobacco stems are crushed with a special fiber grinder to make the fineness 60-80 mesh, and forced to dry to make the water content less than 2.5%. And carry out chemical modification treatment on the surface of tobacco stem powder. In the high-speed mixer, nano-montmorillonite is added to the surface-modified tobacco stem powder, and high-speed stirring is performed for 10 to 40 minutes to obtain nano-montmorillonite-wrapped tobacco stem powder; Polyvinyl chloride resin, polymer modifier, heat stabilizer, lubricant and modified nano-montmorillonite are mixed in a high-speed kneader, and the material ...

Embodiment 4 Embodiment 5 Embodiment 6

[0028] According to the formula of the tobacco stem wood-plastic composite material shown in Table 1, put the tobacco stems into a 2.5% sodium hydroxide aqueous solution, pass in steam to make the temperature 70-80°C, and soak for 120 minutes to remove the tobacco stems. The tar, nicotine and water-soluble matter are naturally dried to make the water content less than 8%, and the tobacco stems are crushed with a special fiber grinder to make the fineness 60-80 mesh, and forced to dry to make the water content less than 2.5%. And carry out chemical modification treatment on the surface of tobacco stem powder. In the high-speed mixer, nano-montmorillonite is added to the surface-modified tobacco stem powder, and high-speed stirring is performed for 10 to 40 minutes to obtain nano-montmorillonite-wrapped tobacco stem powder; Polyethylene resin, polymer modifier, lubricant and modified nano-montmorillonite are mixed in a high-speed kneader, and the material is discharged at a temp...

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Abstract

The invention belongs to wood-plastic composites and preparation processes thereof, and particularly relates to a cabo wood-plastic composite and a preparation process thereof. The composite is composed of, by weight, 100 parts of thermoplastic macromolecular resin, 10-70 parts of cabo powder, 1-20 parts of nano montmorillonite, 1-10 parts of shock-resistant macromolecular modifier, 1-6 parts of cabo surface compatible modifier, 1-8 parts of macromolecular material heat stabilizer and 1-5 part of macromolecular material lubricant. The process includes the steps: subjecting cabo to chemical treatment, drying, crushing and surface chemical modification, enabling cabo powder to be wrapped by the nano montmorillonite in a high-speed mixer, mixing components proportionally in a high-speed kneader, performing melting, blending and preplasticizing in an open mill, cooling and crushing obtained molten sheets, and using a screw extruder for extrusion forming. The cabo wood-plastic composite is excellent in mechanical performance, waterproof, flame-retardant, stable in size, resistant to worm damage, mould-proof and free of noxious substances.

Description

technical field [0001] The invention belongs to a wood-plastic composite material and a preparation process thereof, in particular to a tobacco stem wood-plastic composite material and a preparation process thereof. Background technique [0002] The wood fibers used in wood-plastic materials mainly include waste wood powder, shavings, and sawn wood, and the plant fibers are crushed rice straw, peanut shells, coconut shells, sugar cane, flax, hemp, jute, hemp, etc.; thermoplastics mainly For PE, PP, PS and other polyolefins and PVC, including new materials, recycled materials and mixtures of the two. Wood fibers and plant fibers were originally used as low-cost, modified filler materials to increase the rigidity of plastics. Wood fibers and plant fibers are rich in sources, cheap, light in weight, have little wear on equipment, good dimensional stability, excellent electrical insulation, non-toxic, can be processed repeatedly, and can be biodegraded. [0003] As a country w...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/06C08L23/12C08L97/02C08K13/02C08K3/34C08J3/00
Inventor 张志明周渝
Owner 张志明
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