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Environmentally friendly pu foaming method

An environmentally friendly, hydroxyl-based technology, applied in the field of foaming, can solve problems such as atmospheric damage, avoid hydrolysis reactions, and ensure quality

Active Publication Date: 2016-12-28
朴喜大 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Among all kinds of industrial pollution, the pollutants produced by the PU foam industry used to manufacture sports shoes and other purposes are more serious, because the PU foam industry must use hydrofluorochlorocarbons when producing PU foam (HCFC) as a blowing agent, but this HCFC wreaks havoc on the atmosphere

Method used

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Embodiment Construction

[0031] In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, which are only provided for reference and description, and are not intended to limit the present invention.

[0032] see figure 1 as well as figure 2 As shown, it is a schematic block diagram and a schematic diagram of equipment connection of the first preferred embodiment of the present invention, which discloses an environmentally friendly PU foaming method, and the environmentally friendly PU foaming method includes the following steps:

[0033] Material preparation step: prepare a hydroxyl compound containing OH (hydroxyl group), an isocyanate polymer containing NCO (isocyanate group) and a harmless gas, wherein, the material preparation step is performed by a foam filling machine 10, the The foam filling machine 10 has a filling machine body 11, and the filling machine b...

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Abstract

The invention relates to an environment-friendly PU foaming method. The environment-friendly PU foaming method comprises steps of material preparation, emulsification, and foaming. According to the environment-friendly PU foaming method, a hydroxyl compound containing hydroxy is mixed with a harmless gas so as to realize emulsification of the hydroxyl compound and reduce specific gravity of the hydroxyl compound; the hydroxyl compound is mixed with an isocyanate polymer containing isocyanate groups under normal pressure so as to obtain a mixture, and foaming effects of the mixture are realized when the harmless gas is removed from the mixture so as to obtain a PU foaming body. According to the environment-friendly PU foaming method, HCFC and water are not needed for PU foaming, so that environmental protection is realized, hydrolysis reaction is avoided, and quality of the PU foaming body is ensured.

Description

technical field [0001] The invention relates to a foaming method, in particular to an environment-friendly PU foaming method. Background technique [0002] Affected by the greenhouse effect in recent years, many disasters have occurred around the world, such as super-strong hurricanes, heavy rain and heavy snow, all of which have caused major losses in people's property and safety. caused by carbon dioxide and various pollutants. [0003] Among all kinds of industrial pollution, the pollutants produced by the PU foam industry used to manufacture sports shoes and other purposes are more serious, because the PU foam industry must use hydrofluorochlorocarbons when producing PU foam (HCFC) as a blowing agent, but this HCFC can wreak havoc on the atmosphere. Contents of the invention [0004] In view of this, the object of the present invention is to provide an environmentally friendly PU foaming method, which can perform PU foaming without using HCFC and water. [0005] In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/00B29C44/34
Inventor 朴喜大周隆文
Owner 朴喜大
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