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A wood-plastic building formwork produced by recycling waste materials and its preparation method

A construction formwork and wood-plastic technology, which is applied in the field of wood-plastic materials, can solve the problems that the high strength of composite materials cannot be maintained continuously, the short service life of building formwork, and the reduction of plastic usage, etc., to achieve easy realization, high toughness, and easy operation Effect

Active Publication Date: 2015-07-29
山东宜居新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plasticization treatment improves the processing performance of wood-plastic materials, reduces the amount of plastic used, and reduces production costs while improving product performance, thus enhancing the competitiveness of wood-plastic products. However, this technology is very difficult and is still in the exploratory stage
[0006] Chinese patent application 200910251678.6 discloses a wood-plastic material reinforced with bamboo boards, but in practice, due to the difference in hydrophilicity and hydrophobicity between bamboo material and wood-plastic material, in practical applications, the high strength of the composite material cannot be achieved. Continuous maintenance, the prepared building formwork has a short service life

Method used

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  • A wood-plastic building formwork produced by recycling waste materials and its preparation method
  • A wood-plastic building formwork produced by recycling waste materials and its preparation method
  • A wood-plastic building formwork produced by recycling waste materials and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The preparation of the lignocellulosic powder of embodiment 1 rubber-modified clay coating

[0068] Take the following raw materials according to the various weight ratios of Table 2: the ultrafine clay adopts the ultrafine white clay of Hebei Jianhui Mining Industry; the vulcanized rubber adopts the nitrile powder rubber P-6387 (group 1 and Group 2) and nitrile rubber NBR P8300 (with acrylonitrile content of 33% and 26% respectively) (group 3 and group 4); the wood fiber powders were respectively wood fiber powders from Longzheng Fiber Co., Ltd., Yuncheng County, Shandong Province.

[0069] Table 2 Preparation of rubber-modified clay-coated lignocellulosic powder

[0070]

[0071] Then prepare modified wood fiber powder according to the following steps:

[0072] 1) first superfine clay is mixed with wood fiber powder;

[0073] 2) adding vulcanized rubber powder, and further mixing evenly to make rubber-modified wood fiber powder.

Embodiment 2

[0075] The modified wood fiber powder prepared by Group 1 in Example 1 was used. Weigh raw materials according to the following weight ratio:

[0076] PVC resin powder: 100 parts;

[0077] Modified wood fiber powder: 20 parts;

[0078] Calcium filler: 50 parts;

[0079] Plasticizing regulator: 12 parts;

[0080] Stabilizer: 4 parts;

[0081] Internal and external lubricant: 1 part;

[0082] CPE anti-impact agent: 8 parts;

[0083] Foaming agent: 1.0 parts.

[0084] PVC resin powder: 100 parts;

[0085] Then utilize the following methods to prepare wood-plastic building formwork:

[0086] a) taking modified wood fiber powder and various raw materials;

[0087] b) Add the above-mentioned raw materials into the stirring mixer according to the ratio of parts and mix them, heat to 130°C, then cool to 80°C and release;

[0088] c) Put the mixed raw materials into the extruder, heat them to 180°C and extrude them, shape them with abrasive tools, cool them, draw them, cut th...

Embodiment 3

[0090] The modified wood fiber powder prepared by Group 2 in Example 1 was used. Weigh raw materials according to the following weight ratio:

[0091] PVC resin powder: 100 parts;

[0092] Modified wood fiber powder: 15 parts;

[0093] Calcium filler: 60 parts;

[0094] Plasticizing regulator: 10 parts;

[0095] Stabilizer: 3 parts;

[0096] Internal and external lubricant: 1 part;

[0097] CPE anti-impact agent: 6 parts;

[0098] Foaming agent: 0.8 parts.

[0099] Then utilize the following methods to prepare wood-plastic building formwork:

[0100] a) taking modified wood fiber powder and various raw materials;

[0101] b) Add the above-mentioned raw materials into the stirring mixer according to the ratio of parts and mix them, heat to 150°C, then cool to 80°C and release;

[0102] c) Put the mixed raw materials into the extruder, heat to 140°C to extrude, shape by abrasive tools, cool, draw, cut to length, and cut into plates.

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Abstract

The invention relates to a wood-plastic building template. The wood-plastic building template is prepared by employing a rubber-modified clay-coated wood fiber powder as a raw material and mixing with PVC and other auxiliary agents. In the rubber-modified clay-coated wood fiber powder, clay is capable of uniformly coating the wood fiber powder, and clay coating the wood fiber powder and dissociated clay are capable of uniformly mixing with rubber powder, are capable of improving the interface bonding force between wood fiber and PVC in the wood-plastic material in the sequential process of fusion mixing with PVC and extrusion, and also can be used as a reinforcing phase, so that the wood-plastic material with excellent strength and toughness is obtained. The above modification operation is performed through simple physical mixing. The technology is simple, low in cost, easy to operate and easy to realize. The prepared wood-plastic building template is high in strength, high in toughness, waterproof and moistureproof, the processing length is not limited, the production efficiency is high, and the wood-plastic building template is 100% recyclable after being used for years.

Description

technical field [0001] The invention relates to the field of wood-plastic materials, in particular to a wood-plastic material produced from recycled waste materials that can be used as a wood-plastic building formwork and a preparation method thereof. Background technique [0002] With the improvement of people's awareness of environmental protection and energy saving, they are no longer satisfied with the wood waste of solid wood flooring and the high formaldehyde release of laminate flooring. There is an urgent need for a new type of building material that is energy-saving, low-cost, and easy-to-care. When building formwork, building formwork needs to be used for support to form a profile. The formwork temporarily supports the concrete. After the concrete is cured, the formwork is removed; the formwork can be used repeatedly. Traditional building formwork includes wood formwork and steel formwork. Wooden formwork The assembly is simple, the toughness is good, the steel mol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L97/02C08L23/16C08L9/00C08L11/00C08L9/02C08K13/02C08K3/34C08K3/26C08J9/10
Inventor 赵悦英杨明顾元喆
Owner 山东宜居新材料科技有限公司
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