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Environment-friendly PVA demoulding release film capable of releasing fragrance

A release film, environmentally friendly technology, applied in the field of environmentally friendly PVA release release film, can solve problems such as harmful to human health and non-degradability, and achieve the effect of improving the release effect and good biodegradability.

Inactive Publication Date: 2021-03-26
常州绿之源高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the release agents used in the domestic concrete industry are mineral oils and reactive release agents. These release agents are prepared from non-renewable resources, are non-degradable, and emit volatile organic compounds, which are harmful to human health.

Method used

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  • Environment-friendly PVA demoulding release film capable of releasing fragrance
  • Environment-friendly PVA demoulding release film capable of releasing fragrance
  • Environment-friendly PVA demoulding release film capable of releasing fragrance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The environmentally friendly PVA release film that can release fragrance, in parts by weight, includes the following ingredients:

[0040]

[0041] The water-soluble polymer is a compound of polyethylene glycol and polyvinyl alcohol, and the mass ratio of polyethylene glycol and polyvinyl alcohol is 6:1, wherein polyethylene glycol is PVA-8000, polyvinyl alcohol The degree of alcoholysis is 88%, and the degree of polymerization is 320.

Embodiment 2

[0043] The environmentally friendly PVA release film that can release fragrance, in parts by weight, includes the following ingredients:

[0044]

[0045]

[0046] The water-soluble polymer is a compound of polyethylene glycol and polyvinyl alcohol, and the mass ratio of polyethylene glycol and polyvinyl alcohol is 8:1, wherein polyethylene glycol is PVA-8000, polyvinyl alcohol The degree of alcoholysis is 88%, and the degree of polymerization is 320.

Embodiment 3

[0048] The environmentally friendly PVA release film that can release fragrance, in parts by weight, includes the following ingredients:

[0049]

[0050] The water-soluble polymer is a compound of polyethylene glycol and polyvinyl alcohol, and the mass ratio of polyethylene glycol and polyvinyl alcohol is 10:1, wherein polyethylene glycol is PVA-8000, polyvinyl alcohol The degree of alcoholysis is 88%, and the degree of polymerization is 320.

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Abstract

The invention relates to the technical field of release agents, in particular to an environment-friendly PVA demoulding release film capable of releasing fragrance. At present, most of release agentsused in the domestic concrete industry are mineral oil and reactive release agents, and the release agents do not have biodegradability and do not meet the requirements of green, environment-friendlyand sustainable development. Based on the problems, the environment-friendly PVA demoulding release film capable of releasing fragrance provided by the invention has the advantages that two water-soluble polymers are added into vegetable oil according to a certain mass ratio, so that the demoulding effect of a vegetable oil-based demoulding agent is greatly improved, and the lowest concrete adhesion amount per unit area on the surface of a steel mould can reach 2.12g / m<2>, good biodegradability is realized, and the requirements of green, environment-friendly and sustainable development of thecurrent society are met.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to an environmentally friendly PVA release film that can release fragrance. Background technique [0002] Concrete release agent, also known as template separator or release agent, is a natural or chemical material that is coated or sprayed on the surface of the template to lubricate and isolate it, making it easy to separate from the concrete after hardening. Spraying or brushing an appropriate amount of release agent on the surface of the concrete prefabricated steel formwork can significantly reduce the adsorption force between the concrete and the formwork, so that the concrete and formwork can be separated smoothly, the edges and corners are neat and undamaged, and the surface is smooth and flat. The release agent is mainly used in large formwork construction, sliding film construction, prefabricated component forming molds, etc. [0003] At present, most of the release...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00B28B7/38C10N40/36
CPCC10M173/00B28B7/388C10M2207/401C10M2209/104C10M2209/04C10M2215/042C10M2209/12C10M2229/02C10M2209/108C10M2209/109C10M2207/289
Inventor 褚鹏飞
Owner 常州绿之源高分子材料有限公司
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