A processing technology of hollow building formwork

A technology for building formwork and processing technology, which is used in construction, on-site preparation of building components, building construction, etc. Grinding degree and heat resistance, etc., to achieve the effect of improving heat resistance, improving strength, and increasing wear resistance

Active Publication Date: 2021-11-23
界首市亚鑫塑业科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research found that there are the following technical problems: 1) PVC co-extruded layer blends are applied to hollow building templates, and the antistatic and UV resistance cannot be improved on the basis of ensuring strength, wear resistance and heat resistance
The core layer blend, on the basis of maintaining light weight and impact resistance, cannot improve wear resistance and heat resistance; 2) The internal residual stress of the formwork semi-finished product cannot be eliminated, making the pressure and temperature of the PVC co-extruded layer and the core layer inconsistent , which reduces the stability and the number of times of use; 3) It is impossible to achieve long-term antistatic and anti-ultraviolet effects by adding functional fillers

Method used

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  • A processing technology of hollow building formwork
  • A processing technology of hollow building formwork
  • A processing technology of hollow building formwork

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Embodiment 1

[0035] see Figure 1-2 As shown, the present embodiment provides a processing technology for hollow building formwork, comprising the following steps:

[0036] S1. Blending of raw materials for PVC co-extrusion layer: by weight, weigh 75 parts of polyvinyl chloride resin powder, 25 parts of acrylonitrile-butadiene-styrene copolymer, 8 parts of aromatic polyamide fiber, and 1.2 parts of antistatic filler. 7 parts, 7 parts of light calcium carbonate, 1.6 parts of titanium dioxide, mix and stir evenly to obtain PVC co-extrusion layer blend; wherein, the apparent density of polyvinyl chloride resin powder is 0.42-0.45g / cm 3 , the residual vinyl chloride content is less than 10ug / g; the heat distortion temperature of the acrylonitrile-butadiene-styrene copolymer is 94-96°C, the tensile strength is 52-55MPa, and the bending strength is 85-88MPa.

[0037] The preparation method of the antistatic filler is as follows: according to parts by weight, 4 parts of ultraviolet absorber 2-(2...

Embodiment 2

[0044] see Figure 1-2 As shown, the present embodiment provides a processing technology for hollow building formwork, comprising the following steps:

[0045] S1. Blending of raw materials for PVC co-extrusion layer: according to parts by weight, weigh 85 parts of polyvinyl chloride resin powder, 27 parts of acrylonitrile-butadiene-styrene copolymer, 10 parts of aromatic polyamide fiber, and 1.5 parts of antistatic filler. 8 parts, 8 parts of light calcium carbonate, 2.5 parts of titanium dioxide, mix and stir evenly to obtain PVC co-extrusion layer blend; wherein, the apparent density of polyvinyl chloride resin powder is 0.42-0.45g / cm 3 , the residual vinyl chloride content is less than 10ug / g; the heat distortion temperature of the acrylonitrile-butadiene-styrene copolymer is 94-96°C, the tensile strength is 52-55MPa, and the bending strength is 85-88MPa.

[0046] The preparation method of the antistatic filler is as follows: according to parts by weight, use 30 parts of ...

Embodiment 3

[0053] see Figure 1-2 As shown, the present embodiment provides a processing technology for hollow building formwork, comprising the following steps:

[0054] S1. Blending of raw materials for PVC co-extrusion layer: according to parts by weight, weigh 85 parts of polyvinyl chloride resin powder, 27 parts of acrylonitrile-butadiene-styrene copolymer, 11 parts of aromatic polyamide fiber, and 1.8 parts of antistatic filler 9 parts of light calcium carbonate, 3 parts of titanium dioxide, mix and stir evenly to obtain PVC co-extrusion layer blend; the apparent density of polyvinyl chloride resin powder is 0.42-0.45g / cm 3 , the residual vinyl chloride content is less than 10ug / g; the heat distortion temperature of the acrylonitrile-butadiene-styrene copolymer is 94-96°C, the tensile strength is 52-55MPa, and the bending strength is 85-88MPa.

[0055]The preparation method of the antistatic filler is as follows: according to parts by weight, 4.5 parts of ultraviolet absorber 2-hy...

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Abstract

The invention discloses a processing technology of a hollow building formwork, which includes PVC co-extrusion layer raw material blending, core layer raw material blending, melt co-extrusion, cooling and setting, stress relief treatment, traction and cutting several processes, in the prior art On the basis, a stress relief treatment step is added, and the PVC co-extrusion layer raw materials and core layer raw materials are screened and studied. Among them, the PVC co-extrusion layer blend is applied to the hollow building formwork. Compared with the existing technology, on the basis of ensuring strength, wear resistance and heat resistance, it also improves antistatic performance and UV resistance. The core material is made of polyvinyl chloride resin powder as the base material, and plasticizer chlorinated palm oil methyl ester, ACR processing aid acrylate copolymer, filler light calcium carbonate, impact-resistant ACR special lubricant monoglyceride, Calcium-zinc heat stabilizer is stirred evenly to obtain the core layer blend. As the core layer material of the hollow building formwork, the wear resistance and heat resistance are further improved on the basis of maintaining light weight and impact resistance.

Description

technical field [0001] The invention relates to the field of building construction templates, in particular to a processing technology for hollow building templates. Background technique [0002] The building formwork is a temporary support structure, which is manufactured according to the design requirements, so that the concrete structure and components are formed according to the specified position and geometric size, maintain their correct position and bear the self-weight of the building formwork and the external load acting on it. The purpose of formwork engineering is to ensure the quality of concrete engineering and construction safety, speed up the construction progress and reduce engineering costs. [0003] The emergence of hollow plastic building formwork has promoted the development of the construction industry to a certain extent. Compared with the steel formwork, wood formwork, solid plastic formwork and various composite formwork used in the construction indus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L55/02C08L77/10C08K13/06C08K3/26C08K3/22C08K9/12C08K3/04C08K5/3475C08K5/132C08L33/04C08K13/02C08K5/103E04G9/05B29C35/02B29C35/16B29C53/18B29D7/00
CPCB29C35/02B29C35/16B29C53/18B29D7/00C08K2003/2241C08K2003/265C08K2201/017C08L27/06C08L2201/04C08L2201/08C08L2205/03C08L2205/16E04G9/05C08L55/02C08L77/10C08K13/06C08K3/26C08K3/22C08K9/12C08K3/042C08K5/3475C08K5/132C08L33/04C08K13/02C08K5/103
Inventor 苏伟张润涵苏建东苏建设
Owner 界首市亚鑫塑业科技有限公司
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