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A kind of water-soluble rubber and preparation method thereof

A water-soluble rubber and rubber technology, applied in the field of water-soluble rubber and its preparation, can solve problems such as the insoluble solubility of rubber, achieve high economic value and social value, reduce engineering costs, and have the effects of good application prospects.

Active Publication Date: 2021-10-22
青岛科凯达橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention proposes a new type of water-soluble rubber and its preparation method. The water-soluble rubber has good solubility and mechanical strength, which 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 and preparation method thereof

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Embodiment 1

[0031] 1. This embodiment provides a water-soluble rubber, which is mainly prepared from the following components in parts by mass:

[0032] Acrylamide modified polyurethane 55 parts, carboxymethyl chitosan 25 parts, polyvinyl alcohol grafted glycidyl methacrylate 15 parts, maleic anhydride grafted SBS 5 parts, coupling agent 0.5 parts, antioxidant 0.5 parts parts, softener 2.5 parts, crosslinking agent 0.5 parts, accelerator 0.5 parts, sulfur 0.8 parts.

[0033] 2, the present embodiment provides a kind of preparation method of water-soluble rubber, concrete steps are as follows:

[0034] Step 1: Add 55 parts of acrylamide modified polyurethane, 25 parts of carboxymethyl chitosan, 15 parts of polyvinyl alcohol grafted glycidyl methacrylate, maleic anhydride grafted 5 parts of SBS, 0.5 parts of coupling agent, 0.5 parts of antioxidant, and 2.5 parts of softener were mixed at a blending temperature of 210°C for 30 minutes and left for 30 hours to obtain material 1;

[0035] S...

Embodiment 2

[0038]1. This embodiment provides a water-soluble rubber, which is mainly prepared from the following components in parts by mass:

[0039] Acrylamide modified polyurethane 55 parts, carboxymethyl chitosan 25 parts, polyvinyl alcohol grafted glycidyl methacrylate 5 parts, maleic anhydride grafted SBS 5 parts, coupling agent 0.5 parts, antioxidant 0.5 parts parts, softener 2.5 parts, crosslinking agent 0.5 parts, accelerator 0.5 parts, sulfur 0.8 parts.

[0040] 2, the present embodiment also provides the preparation method of above-mentioned water-soluble rubber, concrete steps are as follows:

[0041] Step 1: Add 55 parts of acrylamide modified polyurethane, 25 parts of carboxymethyl chitosan, 5 parts of polyvinyl alcohol grafted glycidyl methacrylate, maleic anhydride grafted 5 parts of SBS, 0.5 parts of coupling agent, 0.5 parts of antioxidant, and 2.5 parts of softener were mixed at a blending temperature of 210°C for 30 minutes and left for 30 hours to obtain material 1;...

Embodiment 3

[0045] 1. This embodiment provides a water-soluble rubber, which is mainly prepared from the following components in parts by mass:

[0046] Acrylamide modified polyurethane 35 parts, carboxymethyl chitosan 30 parts, polyvinyl alcohol grafted glycidyl methacrylate 20 parts, maleic anhydride grafted 10 parts, coupling agent 0.8 parts, antioxidant 0.6 parts , 2.5 parts of softener, 0.5 parts of crosslinking agent, 0.5 parts of accelerator, and 0.8 parts of sulfur.

[0047] 2, the present embodiment provides the preparation method of above-mentioned water-soluble rubber, concrete steps are as follows:

[0048] Step 1, in the internal mixer or open mill, add 35 parts of acrylamide modified polyurethane, 30 parts of carboxymethyl chitosan, 20 parts of polyvinyl alcohol grafted glycidyl methacrylate, maleic anhydride grafted 10 parts of SBS, 0.8 parts of coupling agent, 0.6 parts of antioxidant, 2.5 parts of softener, at a blending temperature of 210°C, knead for 30 minutes, and pl...

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Abstract

The present invention provides a water-soluble rubber and a preparation method thereof. The water-soluble rubber is mainly prepared from the following components by weight: mainly prepared from the following components by weight: 35-55 parts of acrylamide-modified polyurethane , 20-30 parts of carboxymethyl chitosan, 5-40 parts of compatibilizer, 0.3-2 parts of coupling agent, 0.1-1 part of antioxidant, 1-5 parts of softener, 0.3-3 parts of cross-linking agent , Accelerator 0.3-3 parts, sulfur 0.5-6 parts. The water-soluble rubber provided by the present invention has a certain rubber elasticity and strength, and has good solubility. By controlling the ratio of materials to control the dissolution time and strength retention rate, it can be dissolved in water and provide customized products for customers in the military industry and petroleum fields. It 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 and a preparation method thereof. Background technique [0002] At present, with the rapid development of technology, water-swellable rubber has gradually matured and is widely used in waterproof and anti-leakage rubber sealing products to solve the problem of poor sealing. However, in specific scenarios in petrochemical, military, highway and other fields, the performance requirements for rubber materials to be soluble or disappear after functioning are put forward, that is, the demand for water-soluble rubber materials is becoming stronger and stronger. [0003] Water-soluble rubber materials are mainly used in tool seals and soluble tools. At present, there are very few water-soluble polymer rubber materials on the market. Although foreign companies occasionally have products, these products have high limitations, and more importantly, it is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/08C08L5/08C08L51/00C08K3/06
Inventor 张哲郑君陈秀秀杨茂君
Owner 青岛科凯达橡塑有限公司
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