Wood plastic composite material building mould board, its preparation method and use

A wood-plastic composite material and building formwork technology, which is applied in the field preparation of building components, construction, building construction, etc., can solve the problems of large thermal deformation, less use times, low heat resistance, etc., and achieve small thermal deformation , reduce the project cost, improve the effect of strength and toughness

Inactive Publication Date: 2007-04-18
四川自强科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wood-plastic composite templates in the prior art have poor toughness, low elastic modulus, insufficient strength, poor wear resistance, low heat resistance, large thermal deformation, and few times of use, and cannot be used as building templates. Require
At present, there are no relatively mature wood-plastic composite products used as building templates in the domestic and foreign markets.

Method used

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  • Wood plastic composite material building mould board, its preparation method and use
  • Wood plastic composite material building mould board, its preparation method and use
  • Wood plastic composite material building mould board, its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Collect and sort 60 parts of rice husks by weight, after crushing and grinding, the particle size is 40-80 mesh, and the moisture content after drying is less than 3%; select 40 parts of PVC new plastic powder by weight, and the selected particle size is 500-800 11 parts of calcium carbonate powder, 5 parts of PE resin, 4 parts of short glass fiber with a diameter of 5 μm and a length of 25 μm.

[0045] Auxiliaries are selected from composite lead accounting for 3% of the total weight of the main material and auxiliary materials, acrylate copolymer (ACR) accounting for 0.5% of the total weight of the main material and auxiliary materials, and chlorinated polyethylene (CPE) accounting for 1.5% of the total weight of the main material and auxiliary materials. ), stearic acid accounting for 1% of the total weight of main materials and auxiliary materials, dioctyl phthalate (DOP) accounting for 1.2% of the total weight of main materials and auxiliary materials, polyethylene ...

Embodiment 2

[0050] Collect and sort 70 parts of peanut shells by weight, crush and grind them into powder, the screening particle size is 40-80 mesh, and the moisture content after drying is less than 3%; select 30 parts of PVC resin by weight, and the selected particle size is 500-800 Purpose: 15 parts of calcium carbonate powder, 8 parts of PE resin, 5 parts of short glass fiber with a diameter of 6 μm and a length of 30 μm.

[0051] Auxiliaries are selected from composite lead accounting for 2% of the total weight of the main material and auxiliary materials, acrylate copolymer (ACR) accounting for 1% of the total weight of the main material and auxiliary materials, and chlorinated polyethylene (CPE) accounting for 1.6% of the total weight of the main material and auxiliary materials. ), stearic acid accounting for 0.8% of the total weight of main materials and auxiliary materials, dioctyl phthalate (DOP) accounting for 1.3% of the total weight of main materials and auxiliary materials,...

Embodiment 3

[0056] Collect and sort 50 parts of wheat stalks, corn stalks and corncobs by weight, pulverize and grind them into powder, the screening particle size is 40-80 mesh, and the moisture content after drying is less than 3%; select 10 parts of PVC resin by weight, 20 parts of new PVC plastic powder, 20 parts of PVC waste plastic powder, 6 parts of calcium carbonate powder with a particle size of 500-800 mesh, 4 parts of PE resin, 3 parts of short glass fiber with a diameter of 4 μm and a length of 20 μm.

[0057] Auxiliaries are selected from composite lead accounting for 2.5% of the total weight of the main material and auxiliary materials, ACR accounting for 0.7% of the total weight of the main material and auxiliary materials, CPE accounting for 1% of the total weight of the main material and auxiliary materials, and 0.7% of the total weight of the main material and auxiliary materials. Stearic acid, DOP accounting for 1.4% of the total weight of the main material and auxiliary...

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Abstract

This invention discloses a kind of wood-plastic composite materials for construction template and its preparation methods and purposes. It belongs to building materials area. Against poor toughness, small strength and high cost defects of existing technologies, the main materials of this invention are PVC resin and/or plastic (new materials or waste materials) and wood fiber powder, the second materials are calcium power PE resins, short glass fiber, then adds the assistant, through mixing, heating, agitating, extrusion to matrix and cooling to shape, cutting steps to made into templates. It can increase the strength of plate by increasing various forms of reinforced structure in the process of preparation. It can be used for construct template of concrete processing. This invention can be recycled for several times, environmental protected, save resources and of low cost; the template are wear resistant and defend worms, non-absorbent, and hard to deform, with good mechanical properties, low coefficient of thermal conductivity, anti-acid and alkali.

Description

technical field [0001] The invention relates to a building formwork of wood-plastic composite material, in particular to a building formwork used for concrete processing, belonging to the field of building materials. Background technique [0002] The Ministry of Construction issued a document to ban small-scale panels (steel membrane panels) used in construction. Now the market is mainly replaced by bamboo plywood, bamboo glue-coated panels, wood plywood, wood-glued composite panels and other products. However, bamboo and wooden building templates will bulge in layers when exposed to water during construction, are not resistant to acid and alkali corrosion, and are used less often (the best laminated boards are used less than 10 times), and the overall cost is high (about 6 yuan) / m 2 times), and cannot be recycled and reused, resulting in a huge waste of wood and bamboo resources. [0003] Wood-plastic composite material is a new material emerging in recent years. It is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G9/02B29C69/02B29C47/40B29C47/76B29C47/12B29C43/24C08L97/02C08L27/06C08K3/02B29K105/06B29K27/06B29K423/00B29K505/00B29K309/08B29K311/14B29L31/10B29C48/30B29C48/76
Inventor 赵树辉
Owner 四川自强科技有限公司
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