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A kind of water-soluble rubber material and preparation method thereof

A technology of rubber materials and water contact, which is applied in the field of functional polymer materials, can solve the problems of rubber insoluble solubility, etc., achieve high economic value and social value, facilitate construction, and reduce project cost

Active Publication Date: 2021-10-19
青岛科凯达橡塑有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a new type of water-soluble rubber and a preparation method thereof. The water-soluble rubber has good solubility, has both strength and solubility, and solves the problem that the existing rubber cannot be dissolved or has poor solubility.

Method used

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  • A kind of water-soluble rubber material and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0030] The present embodiment provides a kind of preparation method of water-soluble rubber, and concrete steps are as follows:

[0031] Step 1: Add 50 parts of dimethylol propionic acid modified polyurethane, 20 parts of ethylenediaminopropanesulfonic acid modified chitosan, polyvinyl alcohol grafted methacrylic acid shrink 15 parts of glyceride, 5 parts of maleic anhydride grafted SBS, 10 parts of carboxymethyl-modified nano-silica, 0.5 parts of coupling agent, 0.5 parts of antioxidant, 2.5 parts of softener, at a blending temperature of 30°C Next, mixed for 30 minutes, left for 30 hours to obtain material 1;

[0032] Step 2: Take the material 1 out of the internal mixer or open mill and enter it into granulation equipment for granulation or into powder milling equipment for grinding into shapes with a particle size of 50-150 mesh. Material 2 was obtained.

[0033] Step 3: Add material 2 to the high-speed mixer at a speed of 400rpm, then add 0.5 parts of crosslinking agent...

Embodiment 2

[0035] The present embodiment provides a kind of preparation method of water-soluble rubber, and concrete steps are as follows:

[0036] Step 1: Add 65 parts of dimethylolpropionic acid modified polyurethane, 15 parts of ethylenediaminopropanesulfonic acid modified chitosan, polyvinyl alcohol grafted methacrylic acid shrink 5 parts of glyceride, 5 parts of maleic anhydride grafted SBS, 10 parts of carboxymethyl-modified nano-silica, 0.5 parts of coupling agent, 0.5 parts of antioxidant, 2.5 parts of softener, at a blending temperature of 30°C Next, mixed for 30 minutes, left for 30 hours to obtain material 1;

[0037] Step 2: Take the material 1 out of the internal mixer or open mill and enter it into granulation equipment for granulation or into powder milling equipment for grinding into shapes with a particle size of 50-150 mesh. Material 2 was obtained.

[0038] Step 3: Add material 2 to the high-speed mixer at a speed of 400rpm, then add 0.5 parts of crosslinking agent, ...

Embodiment 3

[0040]The present embodiment provides a kind of preparation method of water-soluble rubber, and concrete steps are as follows:

[0041] Step 1: Add 20 parts of dimethylol propionic acid modified polyurethane, 25 parts of ethylenediaminopropanesulfonic acid modified chitosan, polyvinyl alcohol grafted methacrylic acid shrink 20 parts of glyceride, 10 parts of maleic anhydride grafted, 20 parts of carboxymethyl-modified nano-silica, 0.8 parts of coupling agent, 0.6 parts of antioxidant, 2.5 parts of softener, at a blending temperature of 30°C , mixed for 30 minutes, and left for 30 hours to obtain material 1;

[0042] Step 2: Take the material 1 out of the internal mixer or open mill and enter it into granulation equipment for granulation or into powder milling equipment for grinding into shapes with a particle size of 50-150 mesh. Material 2 was obtained.

[0043] Step 3: Add material 2 to the high-speed mixer at a speed of 400rpm, then add 0.5 parts of crosslinking agent, 0....

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Abstract

The present invention proposes a water-dissolving rubber and a preparation method thereof. The water-dissolving rubber is mainly prepared from the following components in parts by weight: dimethylol propionic acid modified polyurethane (DMPA-PU) 10-70 15-30 parts of ethylenediaminopropanesulfonic acid modified chitosan (EPS-CS), 5-30 parts of carboxymethyl-modified nano-silica, 5-40 parts of compatibilizer, 0.3-30 parts of coupling agent 2 parts, 0.1-1 part of antioxidant, 1-5 parts of softener, 0.3-3 parts of cross-linking agent, 0.3-3 parts of accelerator, 0.5-6 parts of sulfur. The water-dissolvable rubber adopts the graft-modified polymer elastomer segment to make the easy-to-hydrolyze matrix have certain rubber elasticity and strength, and cooperates with natural water-soluble materials and other components to make the water-soluble rubber have excellent water-dissolution properties. performance, and can also take into account mechanical properties, can be used in the preparation of customized products in the military industry and petroleum fields, and has high economic and social value.

Description

technical field [0001] The invention relates to the field of functional polymer materials, in particular to a water-soluble rubber material and a preparation method thereof. Background technique [0002] At present, water-swellable rubber is becoming more and more mature, and has overcome the shortcomings of waterproof and leak-proof rubber sealing materials in underground, water and buildings due to permanent deformation, creep, and lax sealing caused by curing shrinkage of embedded materials. However, in petrochemical, military, highway and other fields, it is often encountered that the material needs to be soluble or disappear after functioning, that is, the demand for soluble rubber materials is increasingly strong. [0003] Soluble rubber materials are mainly used in tool seals and soluble tools. At present, there are very few soluble polymer rubber materials on the market. Although foreign companies occasionally have products on the market, these products have limitat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L5/08C08L51/00C08K13/06C08K3/36C08K5/134C08K5/526C08K3/06
Inventor 郑君张哲陈秀秀侯扬朱明建杨茂君
Owner 青岛科凯达橡塑有限公司
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