Highly cold-resistant rubber dam

A technology of cold-resistant rubber and chloroprene rubber is applied in the field of rubber dams, which can solve the problems of poor cold resistance and can not meet the requirements of low temperature resistance of rubber dams, and can meet the requirements of low temperature resistance and physical and mechanical properties, and has good cold resistance. Effect

Active Publication Date: 2013-05-01
青岛华海环保工业有限公司
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Problems solved by technology

However, the existing rubber dams have poor cold resistance and cannot meet the requirements of the w

Method used

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  • Highly cold-resistant rubber dam
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Embodiment Construction

[0011] Under normal circumstances, we choose rubber varieties with low glass transition temperature and low crystallinity tendency, such as natural rubber, butadiene rubber, etc.; or introduce other unit molecules on the rubber macromolecule to destroy its regularity. In the present invention, the applicant selects chloroprene rubber, especially DCR-114 type chloroprene rubber, because it introduces 2 and 3 unit chlorine atoms on the chloroprene, which destroys the regularity of the polychloroprene molecular chain, It reduces its crystallization tendency, so it shows excellent anti-crystallization performance; and this product has good weather resistance and aging resistance, and is an excellent material for making high cold-resistant rubber dams. In order to comprehensively consider the cold resistance and physical and mechanical properties of the rubber dam, the applicant also uses neoprene and natural rubber in a certain proportion. The purpose of the combination is to destr...

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Abstract

The invention discloses a highly cold-resistant rubber dam which is composed of materials as follows: raw rubber, a plasticizer, carbon black, an active agent and a vulcanizing agent; the weight ratio of the raw rubber to the plasticizer is 100/10-100/15; the raw rubber is composed of chloroprene rubber and natural rubber, and the weight ratio of the chloroprene rubber to the natural rubber is 90/10-80/20; and the plasticizer is butyl oleate, dibutyl sebacate, or a mixture of butyl oleate and dibutyl sebacate. Through tests, the brittleness temperature of the high cold-resistant rubber dam can achieve subzero 50 DEG C, the cold resistance is good, physical and mechanical properties of the tensile strength, the elongation at break and the like can also meet industrial standards, and requirements for the water conservancy industry on low temperature resistance and physical and mechanical properties of rubber dams in high cold temperature environments can be met.

Description

technical field [0001] The invention relates to a rubber dam, in particular to a high cold-resistant rubber dam. Background technique [0002] The rubber dam, also known as the rubber sluice gate, is made of high-strength synthetic fiber fabric as the force-bearing skeleton, coated with rubber inside and outside as the protective layer, processed into adhesive tape, and then anchored on the bottom plate to form a closed dam bag, through the filling and discharging pipe It is a bag-type retaining dam formed by inflating it with road water (air). The dam crest can overflow, and the height of the dam can be adjusted according to needs to control the upstream water level, so as to exert benefits such as irrigation, power generation, shipping, flood control, and tide protection. However, the existing rubber dams have poor cold resistance and cannot meet the requirements of the water conservancy industry for the low temperature resistance of rubber dams in the alpine environment....

Claims

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Application Information

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IPC IPC(8): C08L11/00C08L7/00C08K13/02C08K3/04C08K5/101C08K5/11
Inventor 张芳海刘万方郭建伟丁蕊卢恕志刘桂芝严骋
Owner 青岛华海环保工业有限公司
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