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A kind of preparation method of water-absorbing swelling rubber with good weather resistance

A technology of water-absorbing swelling rubber and weather resistance, which is applied in the field of preparation of water-absorbing swelling rubber, which can solve the problems of low water-absorbing expansion ratio, poor elasticity of the rubber body, and high cost, and achieve good water absorption performance, excellent weather resistance, and water absorption performance.

Active Publication Date: 2016-07-27
江苏悠谷未来科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of WSR obtained by chemical grafting is that it has the characteristics of good microscopic compatibility and high strength, and the product has stable physical properties in the repeated process of water absorption expansion and dehydration recovery in application. The disadvantage is that the grafting reaction is difficult, the process is cumbersome, and the cost is high. Low water expansion ratio and poor elasticity of the rubber body

Method used

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  • A kind of preparation method of water-absorbing swelling rubber with good weather resistance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1, take 30kg of diced rubber. After crushing, use an ion injection machine to inject chipped rubber into C ions to obtain a modified chip rubber; the amount of C ion is 1kg; the ionic energy is 20KEV; / cm 2 ; The ion source adopted is a graphite with a purity of 99%;

[0028] Step 2, the modified butady rubber obtained by step 1 is 3kg of the sodium polyacrylate, and the chloride polypropylene (28%chlorine content) is mixed with 4KG evenly, the driving machine is evenly opened, and the roller distance of the driving machine is to the driving machine. 2mm, time 3min;

[0029] The 3rd step, add polyvinylpyrrolidone 2Kg, carbon black 2Kg and white carbon black 1Kg again, open mill evenly, the roller distance of open mill is 2mm, time 8min;

[0030] In the 4th step, add the vulcanization accelerator M1Kg again, start the kneading evenly, the roll distance of the kneading machine is 0.4mm, the time is 3min, the next sheet, stand still, and set aside;

[0031] Step 5,...

Embodiment 2

[0033] Step 1, take 50kg of diced rubber, after crushing, inject chipped rubber into C ions with ionic rubber with ions to obtain a modified chip rubber; the amount of C ion is 3kg; ionic energy is 30KEV; / cm 2 ; The ion source adopted is a graphite with a purity of 99%;

[0034] Step 2, the modified butady rubber obtained by step 1 is 5kg of sodium polyacrylate, and the chloride polypropylene (28%chlorine content) 6kg is mixed evenly. 2mm, time 5min;

[0035] The 3rd step, add polyvinylpyrrolidone 4Kg, carbon black 4Kg and white carbon black 3Kg again, open mill evenly, the roller distance of open mill is 2mm, time 12min;

[0036] In the 4th step, add the vulcanization accelerator M2Kg again, open the mill evenly, the roll distance of the open mill is 0.4mm, the time is 5min, the next sheet, stand still, and set aside;

[0037] Step 5: Sulfurize in a flat vulcanizer, the vulcanization temperature is 170°C, the time is 40min, the pressure is 12MPa, the mold is opened, and a...

Embodiment 3

[0039] Step 1, take 40kg of diced rubber, after crushing, inject chipped rubber into C ions with ionic rubber with ionic pupa; the amount of C ions is 2kg; ionic energy is 25KEV; / cm 2 ; The ion source adopted is a graphite with a purity of 99%;

[0040] Step 2, the modified butady rubber obtained by step 1 is 4Kg of the sodium polyacrylate, and the chloride polypropylene (28%chlorine content) is mixed with 5KG evenly, the driving machine is uniform, and the roller distance of the driving machine is to the driving machine. 2mm, time 4min;

[0041] The 3rd step, add polyvinylpyrrolidone 3Kg, carbon black 3Kg and white carbon black 2Kg again, open mill evenly, the roller distance of open mill is 2mm, time 10min;

[0042] In the 4th step, add the vulcanization accelerator M2Kg again, open the mill evenly, the roller distance of the open mill is 0.4mm, the time is 4min, the next sheet, stand still, and set aside;

[0043] Step 5: Sulfurize in a flat vulcanizer, the vulcanizatio...

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Abstract

The invention relates to a method for preparing water swelling rubber with good weather resistance and belongs to the technical field of high-molecular materials. The method comprises the following steps of: 1, crushing 30-50 parts by weight of nitrile rubber, and then implanting C ions into the nitrile rubber by using an ion implanter to obtain modified nitrile rubber; 2, uniformly mixing the modified nitrile rubber obtained in the step 1 with 3-5 parts by weight of sodium polyacrylate and 4-6 parts by weight of chlorinated polypropylene, and uniformly milling by using an open mill; 3, then adding 2-4 parts by weight of polyvinyl pyrrolidone, 2-4 parts by weight of carbon black and batching off, and standing for later use; 5, vulcanizing by a flat vulcanizing machine, opening a mould and standing. The water swelling rubber prepared through the method disclosed by the invention has the advantages of good water absorption property and excellent weather resistant property and can still have good water absorption property after being used in an acidic aqueous solution for multiple times.

Description

technical field [0001] The present invention involves a preparation method of a good weather -resistant water -absorbing and expanded rubber, which is a high -molecular material technology field. Background technique [0002] Waterswellingrubber (WSR) is a new type of functional polymer material developed by Japan in the late 1970s. In 1976, the Kyo -Power Chemical Co., Ltd. applied for the invention patent of water absorption and expansion rubber for the first time. WSR is made by introducing hydrophilic groups or components into traditional elastic matrices (such as rubber and thermoplastic elastomers). The product can expand to several times or even hundreds of times its own mass or volume after absorbing water. It can adapt to structure deformation and generate large expansion pressure. While maintaining the elasticity and strength of the substrate, it also has the ability to keep water and water. As a new type of functional material. [0003] Since this material is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L33/02C08L23/28C08L39/06C08L83/04C08L83/06C08K13/02C08K3/04C08K3/36C08K5/101C08K5/47B29C35/02
CPCC08L15/00C08L2205/03C08L2205/035C08L23/28C08L33/02C08L39/06C08K13/02C08K3/04C08K3/36C08K5/47C08L83/04C08L83/06C08K5/101
Inventor 张学平朱忠海
Owner 江苏悠谷未来科技有限公司
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