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Dynamic sealant and preparation method thereof

A technology of dynamic sealing and liquid polysulfide rubber, which is applied in the field of sealants, can solve problems such as unfavorable maintenance of reactors, increased manufacturing costs, inconvenient operation, etc., to achieve continuous high-efficiency self-lubricating properties, long service life, and enhanced durability abrasive effect

Active Publication Date: 2013-01-30
KESHUN WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method increases the volume of the reactor a lot, and only small motors can be used. The power is obviously insufficient, the operation is very inconvenient, and it is not conducive to the maintenance of the reactor, which obviously increases the manufacturing cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Quantitatively weigh component A raw materials according to the following weight percentages:

[0024] Liquid polysulfide rubber 48%, modifier 19.5%, epoxy resin 8.4%, light calcium carbonate 13%, talcum powder 6.5%, fumed white carbon black 4%, industrial sulfur 0.6%.

[0025] Quantitatively weigh component B raw materials according to the following weight percentages:

[0026] Industrial manganese dioxide 50.1%, dibutyl phthalate 21%, tire rubber powder 12.9%, Troupe anti-wear agent 4.2%, high temperature grease 10%, rubber accelerator D 0.7%, amine catalyst 11% .

[0027] Concrete preparation steps are as follows:

[0028] 1) Preparation of component A: Weigh each component quantitatively, put liquid polysulfide rubber, epoxy resin, and fumed silica into the kneader in turn, and start the kneader to stir and mix for about 10-15 minutes to make the fumed silica uniform Disperse in the liquid material; add modifier, light calcium carbonate, talcum powder and industr...

Embodiment 2

[0032] Quantitatively weigh component A raw materials according to the following weight percentages:

[0033] Liquid polysulfide rubber 54%, modifier 18.2%, epoxy resin 5.5%, light calcium carbonate 10%, talcum powder 4.5%, fumed white carbon black 7.1%, industrial sulfur 0.7%.

[0034] Quantitatively weigh component B raw materials according to the following weight percentages:

[0035] Industrial manganese dioxide 53%, dibutyl phthalate 22%, tire rubber powder 8.8%, Troupe anti-wear agent 5%, high temperature grease 10%, rubber accelerator D 0.8%, amine catalyst 1.2% .

[0036] The specific preparation steps are the same as in Example 1. The weight ratio of component A and component B is 10:1.2.

Embodiment 3

[0038] Quantitatively weigh component A raw materials according to the following weight percentages:

[0039] Liquid polysulfide rubber 52%, modifier 19%, epoxy resin 6%, light calcium carbonate 10%, talcum powder 5%, fumed white carbon black 7.4%, industrial sulfur 0.6%.

[0040] Quantitatively weigh component B raw materials according to the following weight percentages:

[0041] Industrial manganese dioxide 49%, dibutyl phthalate 22.6%, tire rubber powder 13%, Troupe anti-wear agent 5%, high temperature grease 8%, rubber accelerator D 0.8%, amine catalyst 1.6% .

[0042] The specific preparation steps are the same as in Example 1. The weight ratio of component A and component B is 10:1.

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PUM

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Abstract

The invention provides a dynamic sealant, which comprises a component A and a component B in a weight ratio of 10:(0.8-1.2), wherein the component A comprises liquid polysulfide rubber, a vulcanizing agent, a tackifier, a filler and a modifying agent; and the component B comprises a curing agent, a promoter, a catalyst, a reinforcing agent, lubricating grease and a plasticizer. The dynamic sealant has the outstanding advantages of good sealing effect, excellent wear resistance and self-lubricating property, long service life, low cost and the like, and can be widely applied to sealing mechanical equipment.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a sealant. Background technique [0002] In the synthesis of chemical products, it is often necessary to pressurize or vacuumize the reactor, which often requires the equipment to have a high degree of sealing performance. In conventional sealing methods, there are mainly "packing" type seals, mechanical seals, magnetic transmission seals and integral seals. The "packing" type seal is to use dry asbestos rope or asbestos rope coated with butter in the pressure plate to seal the connection between the compression shaft and the kettle body. This method is the easiest and most economical, but because the asbestos rope is not wear-resistant, it will leak due to the wear of the asbestos rope in a short time, making the reactor lose its sealing effect. The use of mechanical seals and magnetic drive seals is complex and expensive. The manufacturing cost of the equipment i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L81/04C08L63/00C08K13/02C09K3/10C09J181/04
Inventor 周义
Owner KESHUN WATERPROOF TECH CO LTD