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Composite rubber water-stopping belt

A technology for compounding rubber and waterstop, which is applied in microcapsule preparation, microsphere preparation, etc., can solve the problem of large spacing between reinforcing plates, and achieve the effect of improving breaking strength, avoiding decline, and avoiding gradual loss.

Pending Publication Date: 2019-10-25
李承忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When the waterstop is produced and vulcanized, in order to ensure the appearance quality of the waterstop and prevent rubber shortage, the sum of the upper and lower semi-finished films between the molds is greater than the thickness of the mold cavity, and the rubber is in a fluid state when it is pressurized and heated. The rubber needs to flow out from the delivery end of the mold, and at the same time it will drive the reinforcement plate to change its original position, resulting in too large spacing between the reinforcement plates and unqualified products

Method used

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  • Composite rubber water-stopping belt

Examples

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Effect test

example 1

[0033] In parts by weight, successively take 20 parts of graphene oxide, 40 parts of toluene diisocyanate, and 40 parts of acetone, after mixing, heat and reflux for 5 hours, then filter, wash and vacuum-dry to obtain isocyanate-modified graphene oxide; In parts by weight, weigh in turn: 300 parts of deionized water, 100 parts of sodium chloride, 2.5 parts of magnesium hydroxide, 10 parts of magnesium chloride hexahydrate, 2 parts of dispersant, mix deionized water with sodium chloride, and add to Add magnesium hydroxide, magnesium chloride hexahydrate and a dispersant to the mixture of deionized water and sodium chloride, and stir and mix for 40 minutes at a temperature of 50°C and a rotating speed of 400r / min to obtain an aqueous phase mixture; Count and weigh in turn: 15 parts of acrylonitrile, 3 parts of vinylidene chloride, 12 parts of methyl methacrylate, 3 parts of butyl acrylate, 20 parts of low boiling point foaming agent, 4 parts of initiator and 5 parts of crosslinki...

example 2

[0035] In parts by weight, weigh in turn: 300 parts of deionized water, 100 parts of sodium chloride, 2.5 parts of magnesium hydroxide, 10 parts of magnesium chloride hexahydrate, 2 parts of dispersant, mix deionized water with sodium chloride, and Add magnesium hydroxide, magnesium chloride hexahydrate and a dispersant to the mixture of deionized water and sodium chloride, and stir and mix for 40 minutes at a temperature of 50°C and a rotation speed of 400r / min to obtain an aqueous phase mixture; by weight Count by parts, weighing in order: 15 parts of acrylonitrile, 3 parts of vinylidene chloride, 12 parts of methyl methacrylate, 3 parts of butyl acrylate, 20 parts of low boiling point foaming agent, 4 parts of initiator and 5 parts of crosslinking agent, mix acrylonitrile and methyl methacrylate, and add vinylidene chloride, butyl acrylate, low boiling point foaming agent, initiator and crosslinking agent to the mixture of acrylonitrile and methyl methacrylate, at temperatur...

example 3

[0037]In parts by weight, weigh in turn: 20 parts of styrene, 12 parts of divinylbenzene, 5 parts of benzoyl peroxide, 15 parts of epoxy resin, 12 parts of propylene oxide butyl ether, 7 parts of surfactant And 50 parts of deionized water, surfactant and deionized water are mixed in the there-necked flask, add styrene, divinylbenzene, divinylbenzene, epoxy resin and propylene oxide butyl ether in the there-necked flask, And pass nitrogen gas into the three-necked flask at a rate of 30mL / min, under the conditions of temperature 80°C and rotation speed 350r / min, stir and react for 8h, filter to obtain microcapsule blanks, and deionize the microcapsule blanks with deionized water After washing 10 times, dry at a temperature of 80°C for 3 hours to obtain microcapsules; in parts by weight, weigh in turn: 60 parts of nitrile rubber, 40 parts of natural rubber, 30 parts of chlorinated polyethylene rubber, 10 parts Parts of plasticizer, 5 parts of heat stabilizer, 12 parts of vulcaniz...

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Abstract

The invention discloses a composite rubber water-stopping belt, and belongs to the technical filed of polymer materials. In parts by weight, 50-60 parts of nitrile rubber, 30-40 parts of natural rubber, 20-30 parts of chlorinated polyethylene rubber, 5-10 parts of a plasticizer, 2-5 parts of a heat stabilizer, 8-12 parts of a vulcanizing agent, 10-18 parts of calcium oxide, 8-15 parts of toluene diisocyanate, 10-15 parts of microspheres and 15-18 parts of microcapsules are sequentially weighed, the nitrile rubber and the natural rubber are mixed, the chlorinated polyethylene rubber, the plasticizer, the heat stabilizer, the vulcanizing agent, the calcium oxide, the toluene diisocyanate, the microspheres and the microcapsules are added, after stirring and mixing, a rubber mixture is obtained, the rubber mixture is subjected to banburying and vulcanization, and then subjected to compression moulding, and thus the composite rubber water-stopping belt is obtained. The composite rubber water-stopping belt prepared by the technical scheme has the characteristics of excellent waterproof performance and mechanical performance, and has wide prospects in development of the polymer material technology industry.

Description

technical field [0001] The invention discloses a composite rubber waterstop, which belongs to the technical field of polymer materials. Background technique [0002] Rubber waterstops and waterstop rubbers are made of natural rubber and various synthetic rubbers as the main raw materials, mixed with various additives and fillers, and are molded, kneaded, and pressed. There are many varieties and specifications, and there are bridge types. , Mountain type, P type, U type, Z type, B type, T type, H type, E type, Q type, etc. [0003] During the construction of the rubber waterstop, since there are many sharp-edged stones and sharp-edged steel bars in the concrete, attention should be paid to the impact force of the pouring and tamping when pouring and tamping and positioning the waterstop, so as to avoid stabbing due to excessive force. Broken rubber waterstop. If a crack is found, it should be repaired in time, otherwise, when the joint is deformed and subjected to water pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L7/00C08L23/28C08L33/20C08L51/08C08K13/06C08K9/04C08K3/04C08K3/22C08K5/29C08K5/12C08F283/10C08F212/08C08F212/36C08F220/44C08F220/14C08F220/18C08F214/10B01J13/14
CPCB01J13/14C08F220/44C08F283/10C08K2003/2206C08L9/02C08L2205/035C08L2205/20C08L7/00C08L23/286C08L33/20C08L51/08C08K13/06C08K9/04C08K3/042C08K3/22C08K5/29C08K5/12C08F212/08C08F212/36
Inventor 李承忠
Owner 李承忠
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