Water-dissolvable rubber material and preparation method thereof

A rubber material and water-contact technology, applied in the field of functional polymer materials, can solve the problems of insolubility and solubility of rubber, and achieve the effects of high economic value and social value, convenient construction and lower project cost.

Active Publication Date: 2019-05-17
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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  • Water-dissolvable rubber material and preparation method thereof

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Experimental program
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 into a 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 invention provides a water-dissolvable rubber material and a preparation method thereof. The water-dissolvable rubber material is mainly prepared from the following components in parts by weight:10-70 parts of dimethylolpropionic acid modified polyurethane (DMPA-PU), 15-30 parts of ethylenediamine propanesulfonic acid modified chitosan (EPS-CS), 5-30 parts of carboxymethyl modified nano silica, 5-40 parts of a compatilizer, 0.3-2 parts of a coupling agent, 0.1-1 part of an antioxidant, 1-5 parts of a softener, 0.3-3 parts of a cross-linking agent, 0.3-3 parts of an accelerant, and 0.5-6 parts of sulphur. According to water-dissolvable rubber, a substrate easy to hydrolyze has certain rubber elasticity and strength by grafting modified polymer elastomer chain segments, and by being matched with a natural material easy to dissolve in water and other components, the water-dissolvable rubber has the excellent water-dissolvable property, also has mechanical properties, can be applied to preparation of customized products in the fields of military industry and petroleum, and has high economic value 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 Applications(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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