Rubber water-stopping belt and preparation method thereof

A technology of rubber waterstop and softening plasticizer, which is applied in the field of waterstop and its preparation, and can solve the problems of difficult control of cross-linked saturated CPE rubber production, poor tear resistance and liquid permeability, and large compression permanent deformation, etc. Problems, achieve the effect of reducing energy consumption, high resistance to liquid penetration, and small compression permanent deformation

Inactive Publication Date: 2016-12-21
HENGSHUI TAIWEI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention uses chlorinated polyethylene as the main material, uses peroxide as the vulcanizing agent, and lead salt as the stabilizer and crosslinking agent to prepare rubber waterstops, which improves performance, reduces costs, and meets the national standard GB for waterstops. / T 18173.2-2000, but does not consider the index of alkali resistance solution, not applicable to waterstop standard TB / T 3360.2-2014; and the production of cross-linked saturated CPE rubber with peroxide system is difficult to control, and the compression set is large , poor tear strength and liquid permeability, poor environmental performance

Method used

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  • Rubber water-stopping belt and preparation method thereof

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Effect test

Embodiment 1

[0020] (1) In parts by weight, 100 parts of chlorinated polyethylene, 35 parts of dioctyl phthalate, 5 parts of magnesium oxide, 1 part of paraffin, 45 parts of carbon black, kaolin 25 parts, 1 part of zinc oxide, and 1 part of stearic acid were put into the internal mixer in order to mix the rubber for 5 minutes. The temperature of the internal mixing was 100°C. 4~5mm output film;

[0021] (2) Put the obtained film into the internal mixer, add 5 parts of diethylthiourea and 1.5 parts of sulfur and mix for 1 minute to remove the glue, the temperature is 80 ° C, and then return to the glue on the mixer for 3 minutes, and press it into a sheet semi-finished film;

[0022] (3) The obtained semi-finished mixed rubber sheet is molded into a finished waterstop by a vulcanizing machine, the vulcanization pressure is 10 MPa, the vulcanization temperature is 165° C., and the vulcanization time is 18 minutes.

Embodiment 2

[0024] (1) In parts by weight, the raw material chlorine content is 100 parts of chlorinated polyethylene, 25 parts of dioctyl phthalate, 5 parts of dioctyl sebacate, and 5 parts of epoxidized soybean oil , 8 parts of magnesium hydroxide, 1 part of paraffin wax, 1 part of polyethylene wax, 35 parts of carbon black, 10 parts of white carbon black, 25 parts of calcium carbonate, 3 parts of zinc oxide, 1 part of stearic acid, put into banburying in order The rubber is mixed in the machine for 5 minutes, the mixing temperature is 100°C, after the glue is discharged, the rubber is returned to the open mill for 5 minutes, and the roller distance is adjusted to 4-5mm to produce the film;

[0025] (2) Put the obtained film into the internal mixer, add 10 parts of diethylthiourea and 2.0 parts of sulfur and mix for 1 minute to remove the glue, the temperature is 80 ° C, and then return to the glue on the mixer for 3 minutes, and press it into a sheet semi-finished film;

[0026] (3) T...

Embodiment 3

[0028] (1) In parts by weight, the raw material chlorine content is 100 parts of chlorinated polyethylene, 40 parts of dioctyl phthalate, 10 parts of magnesium oxide, 1 part of paraffin wax, 1 part of polyethylene wax, 1 part of calcium stearate, 45 parts of carbon black, 15 parts of kaolin, 15 parts of talcum powder, 1 part of zinc oxide, and 1 part of stearic acid are put into the internal mixer in order to mix rubber for 8 minutes, and the mixing temperature is 105 ℃, after debinding, return to the glue on the open mill for 8 minutes, and adjust the roller distance to 4-5mm to release the film;

[0029] (2) Put the obtained film into the internal mixer, add 6 parts of diethylthiourea and 1.0 part of sulfur and mix for 2 minutes to remove the glue, the temperature is 90 ° C, and then return to the glue on the mixer for 5 minutes, and press it into a sheet semi-finished film;

[0030] (3) The obtained semi-finished mixed film is extruded through an extruder to form a mold, a...

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Abstract

The invention relates to a rubber water-stopping belt and a preparation method thereof. The rubber water-stopping belt is prepared from the following raw materials in parts by weight: 100 parts of chlorinated polyethylene, 20-50 parts of softening plasticizer, 5-20 parts of acid absorbing agent, 1-5 parts of lubricating agent, 30-80 parts of composite reinforcing agent, 1-5 parts of vulcanizing activator, 2-10 parts of vulcanizing accelerator and 0.3-2.0 parts of sulphur. The invention also discloses a preparation method of the rubber water-stopping belt. The rubber water-stopping belt and the preparation method have the characteristics of low cost, excellent environmental-friendly and processing properties, low compressed permanent deformation, large liquid-permeating capability and better hot-oil resistance and alkaline solution resistance, and is applicable to engineering occasions such as buildings, subways, culverts, tunnels, closed conduits, water retaining dams, impounding reservoir and chemical plants and the like with special requirements for the water-stopping belts.

Description

technical field [0001] The invention relates to a waterstop and a preparation method thereof, in particular to a rubber waterstop and a preparation method thereof. Background technique [0002] With the development of modern society, my country's infrastructure construction has been further accelerated, and there are more and more projects such as buildings, subways, culverts, tunnels, culverts, retaining dams, and reservoirs. Rubber waterstops are widely used in the above projects, and the market has put forward higher and higher performance requirements for waterstops. At present, there are two standards for rubber waterstops in my country: one is GB / T18173.2-2014, and the other is TB / T 3360.2-2014, the latter of which puts forward clear requirements for the index of alkali resistance solution. Therefore, how to improve the physical index of the waterstop, improve the processing performance, and reduce the cost is particularly important. [0003] Chlorinated polyethylene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L91/06C08L91/00C08L23/06C08K13/02C08K5/12C08K3/22C08K3/04C08K3/34C08K5/09C08K5/405C08K3/06C08K3/36C08K3/26C08K5/098C08K5/11
CPCC08L23/286C08K2201/014C08L2201/08C08L2205/03C08L2205/035C08L91/06C08K13/02C08K5/12C08K2003/222C08K3/04C08K3/346C08K2003/2296C08K5/09C08K5/405C08K3/06C08L91/00C08L23/06C08K5/11C08K2003/2224C08K3/36C08K2003/265C08K5/098C08K3/34
Inventor 张保发刘淑华
Owner HENGSHUI TAIWEI NEW MATERIAL TECH CO LTD
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