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Microwave-vulcanized water-swelling rubber used for continuous extrusion and production method thereof, and extrusion molding device used for producing microwave-vulcanized water-swelling rubber

A technology of water-swellable rubber and microwave vulcanization, applied in the field of microwave vulcanization of water-swellable rubber and extrusion molding devices, can solve the problems of low output, backward processing technology, low work efficiency, etc., and achieve high output, fewer processing steps, and work efficiency. high effect

Inactive Publication Date: 2018-05-15
ZHEJIANG SHENZHOU TECH CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, domestic production of water-swellable rubber products is produced and processed by flat vulcanizing machine one-die-one-die discontinuous molding method. The processing technology is backward, the output is low, and the work efficiency is low.

Method used

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  • Microwave-vulcanized water-swelling rubber used for continuous extrusion and production method thereof, and extrusion molding device used for producing microwave-vulcanized water-swelling rubber
  • Microwave-vulcanized water-swelling rubber used for continuous extrusion and production method thereof, and extrusion molding device used for producing microwave-vulcanized water-swelling rubber
  • Microwave-vulcanized water-swelling rubber used for continuous extrusion and production method thereof, and extrusion molding device used for producing microwave-vulcanized water-swelling rubber

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Embodiment Construction

[0046] A microwave vulcanized water-swellable rubber for continuous extrusion of the present invention, comprising the following parts by mass: neoprene rubber 32.9-40.2, prepolymer 40.2-42.8, inorganic reinforcing filler 8.0-8.2, curing agent 2.4-3.0 , accelerator 0.4-2.0, processing aid 5-10, calcium oxide 3.2-3.9, anti-aging agent 0.8-1.0, zinc oxide 1.2-2.3, magnesium oxide 0.6-1.0.

[0047] Preferably, the prepolymer is water-soluble polyurethane.

[0048] Preferably, the curing agent is dihydroxypolyether or N, N'-diethylthiourea.

[0049] Preferably, the accelerator is 2-thiol imidazoline or 1,2-ethylenethiourea.

[0050] Preferably, the processing aid is one or more mixtures of petrolatum, polyethylene wax or polyethylene glycol.

[0051] Preferably, the anti-aging agent is 2,2,4-trimethyl-1,2-dihydroquinoline polymer ester.

[0052] The performance parameters of microwave vulcanized water-swellable rubber are shown in Table 1:

[0053]

[0054] Table 1 Performa...

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Abstract

The invention discloses microwave-vulcanized water-swelling rubber used for continuous extrusion and a production method thereof, and an extrusion molding device used for producing the microwave-vulcanized water-swelling rubber. The microwave-vulcanized water-swelling rubber comprises the following components in parts by mass: 32.9 to 40.2 parts of chloroprene rubber, 40.2 to 42.8 parts of a preformed polymer, 8 to 8.2 parts of an inorganic reinforcing filler, 2.4 to 3.0 parts of a curing agent, 0.4 to 2.0 parts of an accelerator, 5 to 10 parts of an auxiliary processing agent, 3.2 to 3.9 parts of calcium oxide, 0.8 to 1.0 part of an anti-aging agent, 1.2 to 2.3 parts of zinc oxide and 0.6 to 1.0 part of magnesium oxide. The production method comprises the following steps: mixed rubber processing, placement and standing, remixing, extrusion molding, microwave vulcanization, coil rolling, and inspection and warehousing. The microwave-vulcanized water-swelling rubber provided by the invention has significant social benefits. The microwave vulcanization process for the microwave-vulcanized water-swelling rubber provided by the invention has the following advantages: processing procedures are few; edge trimming is saved; labor and raw materials are saved; and a product has the advantages of stable quality, high yield, high work efficiency and applicability to large-scale production; etc.

Description

technical field [0001] The invention relates to a microwave vulcanized water-swellable rubber for continuous extrusion, a production method and an extrusion molding device for producing the rubber. Background technique [0002] At present, medium and large cities in my country have built large-scale subways, tunnels, dams, swimming pools and other major underground projects, and the country is also investing in large-scale projects such as oil production. Most of the waterproof seals in these projects use polyurethane water-swellable rubber. [0003] Water-swellable rubber is a type of special rubber that has dual characteristics of rubber elasticity and water-swellability. It can maintain high elasticity of rubber, resist compression deformation, and have water-absorbing and water-retaining functions. The use of this kind of material can solve the sealing problems such as the permanent deformation of the rubber and the shrinkage of the cement material caused by the shrinka...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L75/04C08L23/06C08L71/02C08K13/02C08K3/22C08K5/3437C08K5/378C08K5/405B29B7/00B29C35/04B29C35/06B29C35/08B29C47/00
Inventor 董灵崔云董云铨
Owner ZHEJIANG SHENZHOU TECH CHEM IND
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