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Low-density high-bearing sponge and manufacturing process

A high-load, low-density technology, applied in the sponge field, can solve problems such as unfavorable market competition, achieve the effects of reducing production costs, reducing production materials, and avoiding low density

Inactive Publication Date: 2017-02-15
上海馨源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not conducive to market competition

Method used

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  • Low-density high-bearing sponge and manufacturing process

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Comparison scheme
Effect test

Embodiment 1

[0025] A production process of a low-density, high-load-bearing sponge includes the following steps: Step 1, weighing the material: Step 2, stirring the material: Step 3, heating and foaming: Step 4, curing and molding: Step 5, cutting and making the finished product: in:

[0026] In step 1, 167 parts of materials were weighed, including 35 parts of polyether polyol, 50 parts of polymer polyol, 15 parts of flame bonding agent, 0.37 parts of catalyst, 1.4 parts of silicone oil, 9.23 parts of foaming agent, and 56 parts of toluene diisocyanate. share.

[0027] In step 2, the materials in step 1 are fully stirred to obtain a mixture;

[0028] In step 3, the mixture in step 2 is placed in a foaming tank, and heated at 90-100°C for foaming, chain growth, and crosslinking to obtain a foamed mixture;

[0029] In step 4, put the foamed mixture in step 3 into a molding box to solidify to obtain a semi-finished product;

[0030] In step five, the semi-finished product in step four is...

Embodiment 2

[0032] A production process of a low-density, high-load-bearing sponge includes the following steps: Step 1, weighing the material: Step 2, stirring the material: Step 3, heating and foaming: Step 4, curing and molding: Step 5, cutting and making the finished product: in:

[0033] In step 1, 1000 parts of materials are weighed, including 220 parts of polyether polyol; 150 parts of polymer polyol; 90 parts of flame bonding agent; 1 part of catalyst; 14 parts of silicone oil; 75 parts of foaming agent; share;

[0034] In step 2, the materials in step 1 are fully stirred to obtain a mixture;

[0035] In step 3, the mixture in step 2 is placed in a foaming tank, and heated at 90-100°C for foaming, chain growth, and crosslinking to obtain a foamed mixture;

[0036] In step 4, put the foamed mixture in step 3 into a molding box to solidify to obtain a semi-finished product;

[0037] In step five, the semi-finished product in step four is cut to make a finished product.

Embodiment 3

[0039] A production process of a low-density, high-load-bearing sponge includes the following steps: Step 1, weighing the material: Step 2, stirring the material: Step 3, heating and foaming: Step 4, curing and molding: Step 5, cutting and making the finished product: in:

[0040] In step one, 100 parts of materials are weighed, including 54 parts of polyether polyol; 30 parts of polymer polyol; 24 parts of flame bonding agent; 0.9 parts of catalyst; 4.8 parts of silicone oil; share;

[0041] In step 2, the materials in step 1 are fully stirred to obtain a mixture;

[0042] In step 3, the mixture in step 2 is placed in a foaming tank, and heated at 90-100°C for foaming, chain growth, and crosslinking to obtain a foamed mixture;

[0043] In step 4, put the foamed mixture in step 3 into a molding box to solidify to obtain a semi-finished product;

[0044] In step five, the semi-finished product in step four is cut to make a finished product.

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Abstract

The invention relates to a low-density high-bearing sponge. The low-density high-bearing sponge comprises the following materials in parts by weight: 0-50 parts of polyether polyol, 0-50 parts of polymer polyol, 0-15 parts of a flame adhesive, 0-0.5 part of a catalyst, 0-2 parts of silicon oil, 0-10 parts of a foaming gent and 45-56 parts of toluene diisocyanate. The foaming density of the sponge is reduced, while the sponge with the same size is produced, required production materials are greatly reduced, and therefore, production cost is reduced; and the relation between the bearing capacity of the sponge and the density of the sponge is relatively direct, under general conditions, the bearing capacity of the sponge can be reduced along with reduction of the density of the sponge, and once the bearing capacity of the sponge is reduced excessively, the material cannot be used; and by using appropriate polyether, the hardness of the sponge can be controlled, and meanwhile, the shortcomings that the bearing force is difficult to control and the sponge deforms easily due to over-low density are avoided.

Description

technical field [0001] The invention relates to the technical field of sponges, in particular to a low-density, high-load-bearing sponge and a manufacturing process. Background technique [0002] Sponge is a porous material with good water absorption and can be used to clean items. Commonly used sponges are made from wood cellulose fibers or expanded plastic polymers. Alternatively, there are natural sponges made from spongy animals, and most natural sponges are used for body cleaning or painting. In addition, there are three types of synthetic sponges made of other materials, namely low-density polyether (non-absorbent sponge), polyvinyl alcohol (highly absorbent material, no obvious pores) and polyester. [0003] Polyurethane soft foam-sponge is a kind of sponge. Its density is usually 30 ~ 40kg / m 3 , and the higher the density, the higher the production cost. Not conducive to market competition. Contents of the invention [0004] The object of the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/63C08G18/48C08G18/76C08J9/14C08J9/12C08G101/00
CPCC08G18/632C08G18/14C08G18/4072C08G18/48C08G18/7614C08G2101/00C08J9/125C08J9/127C08J9/145C08J2375/04C08J2375/08
Inventor 林永泉阮志忠杨昌军
Owner 上海馨源新材料科技有限公司
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