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Process for producing hot-press high frequency foam cotton

A production method and foam molding technology, applied in the field of foam, can solve problems such as not recommended for use, unstable physical properties, waste of cost, etc.

Inactive Publication Date: 2010-05-26
张正杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wasted labor cost is high, and the foam is not easy to dry after soaking, and the cost of waste is also high
Moreover, because the main component of the raw material used is PVC, it is not recommended for current environmental protection products, and it contains DOP (glacial acetic acid), which is unstable in physical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The TDI (polyether) foam described in the present invention mainly consists of TDI, PPG, amine catalyst, tin catalyst, PU resin powder, water, UV absorber, antioxidant, hardener, wrapping material, cell opener, ethylene glycol Alcohol / glycerol, calcium carbonate mixed foam molding production, the ratio is as follows: PPG 0~100, hardener 100~0, TDI 10~80, H 2 O 0.5~6.0, tin catalyst 0.005~1.0, amine catalyst 0.005~1.0, UV absorber 0~15.0, colorant 0.01~4.0, PU resin powder 5.0~50.0, cell opener 0~7.0, antioxidant 0~15, Ethylene glycol / glycerol 0-7.0, calcium carbonate 0-100.

[0011] The production process is as follows:

[0012] Produced by traditional mold foaming method: PU resin powder (powder type hot melt) can be evenly dispersed in PPG or hardener in advance, stirred evenly, left to stand for more than 30 minutes, and stirred when it is evenly mixed The air that enters overflows and is filtered for use; or directly mix the raw materials except TDI evenly, and th...

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PUM

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Abstract

The present invention relates to foamed floss technology, and is especially hot pressed high frequency foamed floss producing process. The hot pressed high frequency foamed floss is produced with TDIor MDI, PPG, amine catalyst, tin catalyst, PU resin powder, water, UV absorbent, antioxidant, hardening agent, color, pore creating agent, glycol and calcium carbonate, and through foaming and molding. It has simple production process, low cost and environment friendship.

Description

Technical field: [0001] The invention relates to the technical field of foam, in particular to a method for manufacturing hot-pressed high-frequency foam. Background technique: [0002] Foam is often used in industries such as furniture, underwear, shoe uppers, automobiles, etc. In addition to the PU foam formed by foaming in the general mold, the flat foam is often used for heating, or through voltage, current and other processes, to shape it into various required shapes, and to set it after curing. [0003] Traditional general foam can be operated through the above process, but has major disadvantages, that is, it takes a long time (about 120-300 seconds) and the operating temperature is high (required temperature is about 180-220°C). The labor cost and energy cost are too high. Therefore, there are currently hot-pressed high-frequency foams on the market. [0004] For traditional hot-pressed high-frequency foam, the general operating temperature is 120-160°C, and rapid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/00C08J9/00C08K5/053
Inventor 张正杰
Owner 张正杰