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Plastic template

A technology of plastic templates and parts by weight, which is applied in the field of building materials, can solve the problems of inability to cut and assemble arbitrarily, high maintenance costs, deformation and decay, achieve environmental neutralization and remediation project promotion, improve comprehensive recycling rate, and reduce serious damage effect

Inactive Publication Date: 2010-06-09
靳培军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a plastic formwork to overcome the high price of steel formwork, high maintenance costs, heavy weight, and can not be cut and assembled arbitrarily, and it is easy to stick to concrete, need a large amount of release agent and the existence of wooden formwork Due to natural conditions such as humidity and dryness, defects such as deformation and decay, many seams, poor flatness, easy deformation and moisture, easy to decompose, and easy to produce mold swelling occur; Recycling, greatly improving the recycling rate of plastic products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The plastic template described in this embodiment comprises upper and lower surface layers and an intermediate core layer, wherein the upper and lower surface layers are made by the following steps: 400 grams of magnesium hydroxide powder with a particle size of 4 μm are mixed with 10 grams of magnesium hydroxide powder in a high-speed mixer. r-Aminopropyltriethoxysilane was treated for 15 minutes; 400 grams of treated magnesium hydroxide was mixed with 400 grams of atactic polypropylene, 20 grams of antimony trioxide, 40 grams of decabromodiphenyl ether, and benzoyl peroxide. 1.7 grams of calcium stearate, 5 grams of calcium stearate, 3.3 grams of barium stearate, 5 grams of zinc oxide, and 3.3 grams of pentaerythritol bisphosphite bis (2,4-di-tert-butylphenyl) ester are pre-prepared in a high-speed mixer in proportion. Mix evenly; then extrude on a twin-screw extruder at an extrusion temperature of 200°C, cool and granulate to obtain a flame-retardant polypropylene com...

Embodiment 2

[0015] The plastic template described in this embodiment comprises upper and lower surface layers and an intermediate core layer, wherein the upper and lower surface layers are made by the following steps: 600 grams of magnesium hydroxide powder with a particle size of 5 μm are used in a high-speed mixer with 18 grams r-Aminopropyltriethoxysilane was treated for 15 minutes; 600 grams of treated magnesium hydroxide was mixed with 600 grams of atactic polypropylene, 30 grams of antimony trioxide, 50 grams of decabromodiphenyl ether, and benzoyl peroxide. 1.92 grams of calcium stearate, 5.76 grams of calcium stearate, 3.84 grams of barium stearate, 5.76 grams of zinc oxide, 3.84 grams of pentaerythritol bisphosphite bis (2,4-di-t-butylphenyl) ester are pre-prepared in a high-speed mixer in proportion Mix evenly; then extrude on a twin-screw extruder at an extrusion temperature of 200°C, cool and granulate to obtain a flame-retardant polypropylene composite material; the middle cor...

Embodiment 3

[0017] The plastic formwork described in this embodiment comprises upper and lower surface layers and an intermediate core layer, wherein the upper and lower surface layers are made by the following steps: 700 grams of magnesium hydroxide powder with a particle size of 8 μm is mixed with 20 grams of magnesium hydroxide powder in a high-speed mixer. r-Aminopropyltriethoxysilane was treated for 20 minutes; 700 grams of treated magnesium hydroxide was mixed with 700 grams of atactic polypropylene, 40 grams of antimony trioxide, 60 grams of decabromodiphenyl ether, and benzoyl peroxide. 2.1 grams of calcium stearate, 6.5 grams of calcium stearate, 4.5 grams of barium stearate, 6.5 grams of zinc oxide, 4.5 grams of pentaerythritol bisphosphite (2,4-di-tert-butylphenyl) ester are pre-prepared in a high-speed mixer in proportion Mix evenly; then extrude on a twin-screw extruder at an extrusion temperature of 200°C, cool and granulate to obtain a flame-retardant polypropylene composite...

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Abstract

The invention relates to a plastic template, which comprises an upper surface layer, a lower surface layer and an intermediate core layer, wherein, the upper and lower surface layers are manufacturedaccording to the following steps: magnesium hydroxide powder is treated with r-aminopropyl triethoxysilane in a high speed mixing machine; the treated magnesium hydroxide is evenly pre-mixed with atactic polypropylene, antimony trioxide, decabromodiphenyl oxide, benzoyl peroxide, calcium stearate, barium stearate, zinc oxide, bis(2,4-dicumylphenyl)pentaerythritol diphosphite in proportion in the high speed mixing machine; the magnesium hydroxide is extruded on a double screw rod extruding machine, cooled in water and granulated; the intermediate core layer is manufactured by adding 1 percent (weight) of AC foaming agent and 2 percent (weight) of silicone oil into the recycled polypropylene through the conventional method. The invention has the advantages that the price of the raw materialis inexpensive, the production efficiency during the production is high, the labor intensity is low, the energy consumption is low and the production cost is low; the product can be repeatedly used, the maintenance is not required, and the product can be completely recycled after being rejected during the construction.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a plastic template. Background technique [0002] Most of the building formwork in our country uses steel formwork, wood formwork and bamboo plywood. The price of steel formwork is high, the maintenance cost is high, and it is heavy, and it cannot be cut and assembled at will, and it is easy to stick to concrete, requiring a large amount of release agent; the price of wood formwork and bamboo plywood is lower than that of steel plate, but it is formed due to the use of formaldehyde glue. The pungent smell is combined with carcinogens, and the wood is deformed and rotted due to natural conditions such as humidity and dryness. There are also defects such as many seams, poor flatness, easy deformation and moisture, easy to decompose, and easy to produce mold swelling. Bamboo plywood has low turnover times and high loss cost, so it cannot be recycled. [0003] With the development...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G9/05B32B5/18B32B27/06B32B27/32
Inventor 靳培军
Owner 靳培军
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