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Composite polyolefin skin for surface of construction formwork, and preparation and use method of composite polyolefin skin

A technology for compounding polyolefin and building formwork, which is applied in the on-site preparation of building components, construction, building construction, etc. The effect of increasing service life, high repeated use and reducing production cost

Inactive Publication Date: 2019-12-03
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved is: the existing wood plywood template needs to be sprayed with a release agent, and there are problems of corrosion resistance, acid resistance, and poor friction resistance. After the template is removed, the template is seriously damaged due to water absorption and deformation. short life

Method used

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  • Composite polyolefin skin for surface of construction formwork, and preparation and use method of composite polyolefin skin
  • Composite polyolefin skin for surface of construction formwork, and preparation and use method of composite polyolefin skin

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Embodiment Construction

[0037] The thickness of the composite polyolefin skin 1 used on the surface of building formwork in the present invention is only 0.5-2mm, paving is arranged on the surface of building formwork 4, and is set in contact with the surface of building formwork 4, and the migration of the migratable additive is used to realize the integration of the skin 1 and the surface of the building formwork 4 Quick demoulding between concrete.

[0038] The skin 1 of the present invention can be fixedly or not fixedly connected with the building formwork 4, without affecting the pouring construction of the concrete in the formwork; its specific use method includes the following steps:

[0039] Step A, cleaning the surface of the building formwork 4, erasing impurities on the surface, avoiding damage to the skin 1 caused by raised and sharp objects; the skin 1 prepared by the present invention is suitable for building formwork 4 of any material type;

[0040] Step B, setting the skin 1 fit cove...

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Abstract

The invention relates to the technical field of construction formworks, and discloses a composite polyolefin skin for the surface of a construction formwork, and a preparation and use method of the composite polyolefin skin. The composite polyolefin skin is arranged to be in contact with the surface of the construction formwork, and is prepared from the following components in parts by weight: 80-90 parts of polyolefin, 15-25 parts of a controllable transfer assistant, 15-25 parts of filler, 5-15 parts of a flame retardant, 0.1-5 parts of an antioxidant, 0.1-5 parts of an anti-ultraviolet absorbent and 0.1-5 parts of a dispersant. The composite polyolefin skin adheres to the external surface of an existing construction formwork for use, demoulding performance is good, waterproof performance is good, and the composite polyolefin skin can be reused.

Description

technical field [0001] The invention relates to the technical field of construction building templates, in particular to a composite polyolefin skin used on the surface of building templates and a preparation and use method. Background technique [0002] Building formwork is a commonly used concrete forming mold in the field of civil engineering, and the formwork is removed after the concrete has formed a certain strength. In order to prevent the concrete from sticking to the formwork and increase the difficulty of demolition, a release agent is usually sprayed on the surface of the building formwork to isolate or lubricate between the concrete and the formwork. Traditional building formwork release agents mainly include waste engine oil, gutter oil and soybean oil, etc. Although the cost is low, the release effect is average, and they are often prone to defects such as pores, pulverization and corrosion of the formwork. [0003] At present, in the domestic construction for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/20C08K13/02C08K5/20C08K5/521C08K5/42E04G9/05
CPCC08L23/06C08L23/12C08L23/20E04G9/05
Inventor 孙志鹏王博秦杰屈建李艳稳
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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