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Novel foam material

A foaming material, a new type of technology, applied in the polymer field, can solve the problem of the existence of harmful substances

Inactive Publication Date: 2010-09-08
FUJIAN SANSD RUBBER & PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the odor of foaming materials, manufacturers began to use modified foaming agents, but the foaming materials using this modified foaming agent still contain a small amount of ammonia smell and sour taste, and harmful substances still exist

Method used

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Examples

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Effect test

Embodiment Construction

[0022] A novel foaming material of the present invention is mainly made of the following raw materials in parts by weight:

[0023] Hazardous substance free plastic body material 100

[0024] Blowing agent 1-20

[0025] Odorless crosslinking agent 0.7-0.9

[0026] Acidic foaming aid 0.5-10

[0027] Dispersant 0.8-2

[0028] Ammonia remover 1-20

[0029] Acid removal agent 0.3-0.8

[0030] in:

[0031] The main plastic material is pure EVA (ethylene-vinyl acetate copolymer) or LDPE (low-density high-pressure polyethylene) that does not use recycled materials, and pure EVA or LDPE that does not use recycled materials does not contain harmful substances.

[0032] Azodicarbonamide (AC) is used as the foaming agent. In this embodiment, the specific amount of azodicarbonamide used is 10 parts by weight.

[0033] Bis-tert-butylperoxycumene (BIPB) is used as the odorless crosslinking agent. In this embodiment, the specific amount of bis-tert-butylperoxycumene is 0.8 parts by we...

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PUM

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Abstract

The invention discloses a novel foam material, which mainly comprises the following raw materials by weight part: 100 parts of plastic main body material containing no harmful substances, 1-20 parts of foaming agent, 0.7-0.9 parts of tasteless crosslinking agent, 0.5-10 parts of acidic foaming additive, 0.8-2 parts of dispersant, 1-20 parts of ammonia remover and 0.3-0.8 parts of acid remover. The invention selects the plastic main body material containing no harmful chemical substances, and adopts the ammonia remover and the acid remover to remove ammonia odor and acid odor. Compared with the prior art, the foam material produced by the formula of the invention has no toxicity, no odor and no irritating odor, and fully meets the requirements of EU for the content of heavy metals and does not contain 24 harmful chemical substances; and the material fully meets the EU standards.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a foaming material. Background technique [0002] The raw materials of existing foaming materials include recycled EVA, recycled LDPE, foaming agent, crosslinking agent, zinc oxide, stearic acid, color masterbatch, etc. Among them, AC foaming agent, recycled EVA, recycled LDPE, color masterbatch And other raw materials have odor, recycled EVA, recycled LDPE and color masterbatch also contain harmful substances. The masterbatches provided by some manufacturers claim to be non-toxic and tasteless, but in fact still contain harmful substances that have not been tested by authoritative departments, such as compounds DBT&TBT, phthalates, polycyclic aromatic hydrocarbons, etc. In order to improve the odor of foaming materials, manufacturers began to use modified foaming agents, but the foaming materials using this modified foaming agent still contain a small amount of ammonia smell a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L31/04C08L23/06C08K5/14C08K5/098C08K5/09C08K5/1539C08J9/10
Inventor 丁金造王星坤
Owner FUJIAN SANSD RUBBER & PLASTIC
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