Application of a foam stabilizer in the preparation of polyurethane foam products

A technology of foam stabilizer and polyurethane, applied in the application of foam stabilizer, the application field of foam stabilizer in the preparation of polyurethane foam products, can solve the problem of affecting the performance of foam stabilizer, affecting the performance of polyurethane foam products, and many by-products, etc. problem, to achieve soft indentation hardness, decrease in indentation hardness, and high porosity

Active Publication Date: 2017-07-25
JIANGSU OSIC PERFORMANCE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that there are many by-products in the reaction of preparing foam stabilizers in the prior art, which affect the performance of foam stabilizers and finally affect the performance of polyurethane foam products, and then provide a foam stabilizer with less pollution and excellent performance

Method used

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  • Application of a foam stabilizer in the preparation of polyurethane foam products
  • Application of a foam stabilizer in the preparation of polyurethane foam products
  • Application of a foam stabilizer in the preparation of polyurethane foam products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) Mix polyoxyethylene polyoxypropylene ether, acrylic acid, acid catalyst, polymerization inhibitor and water-carrying agent, heat to reflux, control the reaction temperature to 120°C, and the reaction time to 20h, remove the water generated by the reaction at any time during the reaction, Generate an intermediate product, remove the residual acrylic acid in the intermediate product to obtain the desired alkoxypolyoxyethylene polyoxypropylene ether acrylate; wherein m=10, n=100 in the polyoxyethylene polyoxypropylene ether structural formula, R2 is methyl base, the molar ratio of acrylic acid to polyoxyethylene polyoxypropylene ether is 1.5:1, the catalyst is sulfuric acid accounting for 5% of the total mass of polyoxyethylene polyoxypropylene ether and acrylic acid, and the polymerization inhibitor is accounting for polyoxyethylene polyoxypropylene ether 1% of hydroquinone and 1% of the total mass of acrylic acid, and 50% of toluene in the total mass of polyoxyethylen...

Embodiment 2

[0060] (1) Mix polyoxyethylene polyoxypropylene ether, acryloyl chloride, p-toluenesulfonic acid, polymerization inhibitor and water-carrying agent, heat to reflux, control the reaction temperature at 120 ° C, and the reaction time is 22 hours to generate intermediate products, remove the intermediate products residual acryloyl chloride to obtain the required alkoxypolyoxyethylene polyoxypropylene ether acrylate; wherein m=100, n=10 in the structural formula of polyoxyethylene polyoxypropylene ether, R2 is containing ethyl, acryloyl chloride and polyoxypropylene The molar ratio of oxyethylene polyoxypropylene ether is 1.4:1, p-toluenesulfonic acid accounts for 4% of the total mass of polyoxyethylene polyoxypropylene ether and acryloyl chloride, and the polymerization inhibitor is 4% of the total mass of polyoxyethylene polyoxypropylene ether and acryloyl chloride The total mass is 0.8% of tert-butyl hydroquinone, and the water-carrying agent is 40% of cyclohexane accounting for...

Embodiment 3

[0063] (1) Mix polyoxyethylene polyoxypropylene ether, acrylic acid, acid catalyst, polymerization inhibitor and water-carrying agent, heat to reflux, control the reaction temperature at 110°C, and the reaction time is 18h. During the reaction process, use a water separator to remove the reaction at any time. Generated water generates an intermediate product, removes residual acrylic acid in the intermediate product, and obtains the desired alkoxypolyoxyethylene polyoxypropylene ether acrylate; wherein m=80, n=90 in the polyoxyethylene polyoxypropylene ether structural formula , R2 contains propyl group, the molar ratio of acrylic acid and polyoxyethylene polyoxypropylene ether is 1.5:1, the catalyst is a solid-loaded acid accounting for 3% of the total mass of polyoxyethylene polyoxypropylene ether and acrylic acid, and the polymerization inhibitor is The total mass of polyoxyethylene polyoxypropylene ether and acrylic acid is 0.6% of di-tert-butylhydroquinone, and the water-c...

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Abstract

The invention discloses application of a foam stabilizer in preparation of polyurethane foam products. The foam stabilizer comprises a compound with a structure shown in a formula (1), wherein R1 has a structure shown in a formula (2), and each of m and n is an integer from 10 to 100; R2 is methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl or C5-C12 alkyl; x is an integer from 20 to 150, and y is an integer from 1 to 30. The invention also discloses a preparation method of the foam stabilizer, and the preparation method comprises the following steps: mixing polyoxyethylene polyoxypropylene ether, acrylic acid or acryloyl chloride, a catalyst, a polymerization inhibitor and a water carrying agent, and reacting to generate an intermediate so as to obtain alkoxy polyoxyethylene polyoxypropylene ether acrylate; and then mixing the alkoxy polyoxyethylene polyoxypropylene ether acrylate with hydrogen-containing silicon oil and a catalyst namely chlorine platinum acid, and reacting to obtain the foam stabilizer. By using a polyurethane foam material prepared from the foam stabilizer, round bubbles uniform in size can be obtained, the opening rate of the bubbles is relatively high, and the compressive hardness is reduced.

Description

technical field [0001] The invention relates to the application of a foam stabilizer, in particular to the application of a foam stabilizer in the preparation of polyurethane foam products, and belongs to the technical field of polyurethane material applications. Background technique [0002] Polyurethane (PUR) is a polymer with repeating structural units of urethane chain segments made by the reaction of isocyanate and polyol. PUR products are divided into two categories: foamed products and non-foamed products. Foamed products are divided into soft, hard, and semi-rigid PUR foams, sponges, and microcellular elastomers according to their hardness. Among them, soft is the main variety, which has excellent elasticity, softness, elongation and compressive strength, good chemical stability, resistance to many solvents and oils, excellent abrasion resistance, and is 20 times larger than natural sponges. Excellent processability, heat insulation, adhesion and other properties, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/00C08J9/00
Inventor 郭毅吴斌万齐华张浩明
Owner JIANGSU OSIC PERFORMANCE MATERIALS CO LTD
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