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Weather-resistant impact-resistant polyvinyl chloride wood-plastic construction formwork and preparation method thereof

A polyvinyl chloride and building formwork technology, applied in the field of building formwork, can solve the problems of reduced cycle times, increased use costs, and poor low-temperature impact performance, and achieve increased cycle times, reduced use costs, and good low-temperature resistance Effect

Active Publication Date: 2015-03-04
SHANDONG BODO PLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the domestic construction industry is developing rapidly. Glued formwork and bamboo formwork are traditionally used in real estate construction. The construction formwork made of these two materials has a short service life, and the best products can only be used 5-6 times. Afterwards, it cannot be recycled and reused, which not only wastes forest resources, but also causes environmental pollution.
[0003] PVC wood-plastic building formwork is a new building formwork, but the PVC wood-plastic building formwork in the prior art often suffers from poor weather resistance and low-temperature impact performance. During use, it is prone to cracking in winter and easily exposed to heat in summer. (Sun exposure) becomes soft and deformed, which reduces the number of cycles. The number of cycles is less than 10, and the cost of use has risen sharply, which has seriously affected the promotion of use.

Method used

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  • Weather-resistant impact-resistant polyvinyl chloride wood-plastic construction formwork and preparation method thereof
  • Weather-resistant impact-resistant polyvinyl chloride wood-plastic construction formwork and preparation method thereof
  • Weather-resistant impact-resistant polyvinyl chloride wood-plastic construction formwork and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The weather-resistant and impact-resistant polyvinyl chloride wood-plastic building formwork described in this embodiment is composed of raw materials in parts by weight as follows:

[0025]

[0026] Preparation method: First, add the raw materials of the formula amount into the high-speed mixer, heat to 120°C, put them into the cold mixer to cool, and put them into the storage bin when the material is cooled to 50°C; The mixture in the silo is added to the conical twin-screw extruder to be heated and melted. The molten material enters the confluence core through the screw and is diverted to the hanger type foaming mold. Shaped, and then cut to get a 15mm thick weather-resistant and impact-resistant PVC wood-plastic building formwork. Among them, the twin-screw extruder is divided into four temperature control zones, the first temperature control zone temperature is 170°C, the second temperature control zone temperature is 172°C, the third temperature control zone te...

Embodiment 2

[0030] The weather-resistant and impact-resistant polyvinyl chloride wood-plastic building formwork described in this embodiment is composed of raw materials in parts by weight as follows:

[0031]

[0032] Preparation method: First, add the raw materials of the formula amount into the high-speed mixer, heat to 115°C, put it into the cold mixer to cool, and put it into the storage bin when the material is cooled to 45°C; The mixture in the silo is added to the conical twin-screw extruder to be heated and melted. The molten material enters the confluence core through the screw and is diverted to the hanger type foaming mold. Shaped, and then cut to get a 15mm thick weather-resistant and impact-resistant PVC wood-plastic building formwork. Among them, the twin-screw extruder is divided into four temperature control zones, the temperature of the first temperature control zone is 168°C, the temperature of the second temperature control zone is 171°C, the temperature of the thir...

Embodiment 3

[0036] The weather-resistant and impact-resistant polyvinyl chloride wood-plastic building formwork described in this embodiment is composed of raw materials in parts by weight as follows:

[0037]

[0038] Preparation method: First, add the raw materials of the formula amount into the high-speed mixer, heat to 120°C, put them into the cold mixer to cool, and put them into the storage bin when the material is cooled to 45°C; The mixture in the silo is added to the conical twin-screw extruder to be heated and melted. The molten material enters the confluence core through the screw and is diverted to the hanger type foaming mold. Shaped, and then cut to get a 15mm thick weather-resistant and impact-resistant PVC wood-plastic building formwork. Among them, the twin-screw extruder is divided into four temperature control zones, the temperature of the first temperature control zone is 165°C, the temperature of the second temperature control zone is 168°C, the temperature of the ...

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Abstract

The invention relates to a construction formwork, particularly to a weather-resistant impact-resistant polyvinyl chloride wood-plastic construction formwork and a preparation method thereof. The wood-plastic construction formwork is prepared from polyvinyl chloride resin, a heat stabilizer, a light stabilizer, an impact-resistant modifier, a filling agent, a lubricating agent, a composite foaming agent, a stiffening agent, wood powder, an enhancer, a main cross-linking agent, an auxiliary cross-linking agent and a cell stabilizer. The wood-plastic construction formwork has the characteristics of high weather resistance, high hardness, impact resistance, good rigidity and long service life; the preparation method is simple in technology and easy to implement.

Description

technical field [0001] The invention relates to a building formwork, in particular to a weather-resistant and impact-resistant polyvinyl chloride wood-plastic building formwork and a preparation method thereof. Background technique [0002] At present, the domestic construction industry is developing rapidly. Glued formwork and bamboo formwork are traditionally used in real estate construction. The construction formwork made of these two materials has a short service life, and the best products can only be used 5-6 times. Finally, it cannot be recycled and reused, which not only wastes forest resources, but also causes environmental pollution. [0003] PVC wood-plastic building formwork is a new building formwork, but the PVC wood-plastic building formwork in the prior art often suffers from poor weather resistance and low-temperature impact performance. During use, it is prone to cracking in winter and easily exposed to heat in summer. (Sun exposure) becomes soft and defor...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L97/02C08K13/06C08K3/22C08K3/26C08K3/36C08K5/09C08K5/14C08J9/10
CPCC08K2003/2241C08L27/06C08J9/04C08J9/103C08J2327/06C08L2203/14C08L2205/03C08L2205/035C08L2312/00
Inventor 周学卫苗伟苗祥成王长明
Owner SHANDONG BODO PLASTICS CO LTD
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