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A kind of sealing ring and preparation method thereof

A sealing ring and accelerator technology, applied in the field of sealing rings and their preparation, can solve the problems of poor tensile strength and shorten the service life of the sealing ring, and achieve the effects of ensuring service life and increasing tensile strength

Active Publication Date: 2021-01-12
太仓市开源橡胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this application is to solve the above-mentioned daily life, it is often necessary to heat the edible container, and the sealing ring also often expands and shrinks after being heated. The existing sealing ring has reduced the sealing ring due to poor tensile strength. The problem of service life

Method used

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  • A kind of sealing ring and preparation method thereof
  • A kind of sealing ring and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An embodiment of the present invention provides a sealing ring. The sealing ring includes the following raw materials by weight: 80 parts of nitrile rubber, 28 parts of white carbon black, 5 parts of plasticizer, 3 parts of zinc oxide, 0.5 parts of stearic acid, Anti-aging agent 445 0.3 part, polyethylene glycol-40000.2 part, silane coupling agent 0.6 part, accelerator TBZTD 0.2 part, accelerator CZ 0.2 part, accelerator M 0.2 part, accelerator TRA 0.1 part, sulfur 0.2 part, ultramarine blue 0.1 part, 5 parts of titanium dioxide and 10 parts of light calcium carbonate.

[0032] A preparation method of a sealing ring, the preparation method comprises the following steps:

[0033] Step 1: Preheat the mold: the temperature of the upper mold and the lower mold are both 170℃, the pressure is 20mpa, and the preheating is 360 seconds; if the machine curing conditions, mold or mold position are found to be unsatisfactory, the team leader or dispatcher should be notified.

[00...

Embodiment 2

[0040] An embodiment of the present invention provides a sealing ring. The sealing ring includes the following raw materials by weight: 90 parts of nitrile rubber, 30 parts of silica, 8 parts of plasticizer, 4 parts of zinc oxide, 0.8 parts of stearic acid, 0.5 part of antioxidant 445, 0.3 part of polyethylene glycol-40000, 1 part of silane coupling agent, 0.5 part of accelerator TBZTD, 0.5 part of accelerator CZ, 0.5 part of accelerator M, 0.2 part of accelerator TRA, 0.4 part of sulfur, ultramarine blue 0.12 parts, 8 parts of titanium dioxide and 20 parts of light calcium carbonate.

[0041] A preparation method of a sealing ring, the preparation method comprises the following steps:

[0042] Step 1: Preheat the mold: the temperature of the upper mold and the lower mold are both 170℃, the pressure is 20mpa, and the preheating is 360 seconds; if the machine curing conditions, mold or mold position are found to be unsatisfactory, the team leader or dispatcher should be notifie...

Embodiment 3

[0049] An embodiment of the present invention provides a sealing ring. The sealing ring includes the following raw materials by weight: 100 parts of nitrile rubber, 34 parts of white carbon black, 10 parts of plasticizer, 5 parts of zinc oxide, 1 part of stearic acid, 1 part of antioxidant 445, 0.5 part of polyethylene glycol-40000, 1.5 part of silane coupling agent, 0.8 part of accelerator TBZTD, 0.8 part of accelerator CZ, 0.8 part of accelerator M, 0.4 part of accelerator TRA, 0.6 part of sulfur, 0.15 parts of ultramarine blue, 10 parts of titanium dioxide and 30 parts of light calcium carbonate.

[0050] A preparation method of a sealing ring, the preparation method comprises the following steps:

[0051] Step 1: Preheat the mold: the temperature of the upper mold and the lower mold are both 170℃, the pressure is 20mpa, and the preheating is 360 seconds; if the machine curing conditions, mold or mold position are found to be unsatisfactory, the team leader or dispatcher sh...

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Abstract

The invention relates to the technical field of food sealing, in particular to a seal ring and a preparation method thereof. In daily life, food containers are frequently heated, seal rings expand andcontract due to heating, and service lives of existing seal rings are shortened due to low tensile strength. The seal ring is prepared from acrylonitrile-butadiene rubber, white carbon black, plasticizer, zinc oxide, stearic acid, an anti-aging agent 445, polyethylene glycol-4000, a silane coupling agent, an accelerant TBZTD, an accelerant CZ, an accelerant M, an accelerant TRA, sulfur, ultramarine, titanium dioxide and light calcium carbonate. By coordination and cooperation of substances, tensile strength of the seal ring is greatly improved, and the service life of the seal ring is guaranteed.

Description

technical field [0001] The application relates to the technical field of food sealing, in particular to a sealing ring and a preparation method thereof. Background technique [0002] Sealing is a component or measure that prevents fluid or solid particles from leaking from adjacent joint surfaces and prevents external impurities such as dust and moisture from entering the interior of machinery and equipment. The sealed working medium can be gas, liquid or powdered solid. Poor sealing reduces machine efficiency, creates waste and pollutes the environment. The leakage of flammable, explosive or toxic working medium will endanger the safety of people and equipment. The intrusion of air, water or dust into the equipment will pollute the working medium, affect the product quality, increase the wear of parts, and shorten the life of the machine. Seals are divided into static seals and dynamic seals. The seal between relatively stationary parts in machinery (or equipment) is ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L71/02C08K13/02C08K3/36C08K3/22C08K5/09C08K3/26C09K3/10
CPCC08K2003/2241C08K2003/2296C08K2003/265C08L9/02C09K3/10C08L71/02C08K13/02C08K3/36C08K3/22C08K5/09C08K3/26
Inventor 冯华周革
Owner 太仓市开源橡胶有限公司