Production technology for elastic rubber

A production process, elastic rubber technology, applied in the field of rubber, can solve the problems of easy permanent deformation, high price of natural rubber, large rubber loss factor, etc., to achieve the effect of increasing elasticity, not easy to permanent deformation, and long service life

Inactive Publication Date: 2016-08-03
BENGBU LONGHUA DIE CASTING MACHINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although NR has a small loss factor, it has the best overall performance, excellent elasticity, good fatigue resistance, low heat generation, small creep, good adhesion to metal parts, cold resistance, electrical insulation and processing performance. , so NR is widely used for shock absorption purposes, but a single type of rubber has certain weaknesses, the price of natural rubber is high, and some rubbers have a large loss factor, and some rubbers are weak and prone to permanent deformation. Some have low toughness and are easy to crack

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A production process of elastic rubber, comprising the following steps,

[0021] (5), batching: equipped with raw materials, raw materials include 20 parts by weight of natural rubber, 20 parts of butyl rubber, 2 parts of toughening agent, 3 parts of elastic agent, 0.3 part of calcium silicate, 1 part of cobalt oxide, plasticizer 0.3 parts, 10 parts of anti-aging agent and 2 parts of boron trifluoride; the elastic agent is butyl-conjugated diene, pentaerythritol oleate and maleic acid glycoside, and the addition ratio of the three is 1:2:1;

[0022] (6) Mixing: Fully mix the other substances in the raw materials except the elastic agent and put them into the mixer for mixing treatment. The mixing temperature is 70°C, and the mixing time is 20 minutes, and then lowered When the temperature reaches 40°C, add the powdered elastic agent and knead for 10;

[0023] (7) Mold forming: use a mold to shape the mixed raw materials, and then cool them;

[0024] (8) Stress relief ...

Embodiment 2

[0030] A production process of elastic rubber, comprising the following steps,

[0031] (9), batching: equipped with raw materials, raw materials include 30 parts of natural rubber, 30 parts of butyl rubber, 4 parts of toughening agent, 8 parts of elastic agent, 0.5 parts of calcium silicate, 3 parts of cobalt oxide, plasticizer by weight 0.5 parts, 18 parts of anti-aging agent and 4 parts of boron trifluoride; the elastic agent is butadiene conjugated diene, pentaerythritol oleate and maleic acid glycoside, and the addition ratio of the three is 1:2:1;

[0032] (10) Mixing: Fully mix the other substances in the raw materials except the elastic agent and then put them into the mixer for mixing treatment. The mixing temperature is 80°C, and the mixing time is 30 minutes, and then reduce When the temperature reaches 60°C, add the powdered elastic agent and knead for 20;

[0033] (11), mold forming: use mold to carry out molding process to the raw material after kneading, then c...

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PUM

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Abstract

A production process of elastic rubber, relating to the technical field of rubber, comprising the following steps: batching: preparing raw materials, the raw materials include natural rubber, butyl rubber, toughening agent, 3-8 parts of elastic agent, calcium silicate, oxidized Cobalt, plasticizer, anti-aging agent and boron trifluoride; the elastic agent is butane conjugated diene, pentaerythritol oleate and maleic acid glycoside; mixing: after fully mixing other substances in the raw materials except the elastic agent Put it into the mixer for mixing treatment; mold forming: use the mold to shape the mixed raw materials, and then cool them; stress treatment: soak the formed rubber in clean water, then boil, boil The temperature is 80-100° C., and the time is 5-10 minutes. The rubber produced by the invention is cheap, has high elasticity, high toughness, long service life and is not easy to be permanently deformed.

Description

Technical field: [0001] The invention relates to the technical field of rubber, in particular to a production process of elastic rubber. Background technique: [0002] The loss factor of the rubber material used for shock absorption is not only related to the structure of the rubber itself, but also related to temperature and frequency. At normal temperature, the loss factor of natural rubber (NR) and butadiene rubber (BR) is small, styrene-butadiene rubber (SBR), neoprene rubber (CR), ethylene-propylene rubber (EPR), polyurethane rubber (PU) and silicone rubber The loss factor is in the middle, and the loss factor of butyl rubber (HR) and nitrile rubber (NBR) is the largest. [0003] There are generally five types of rubber materials used for shock absorption, namely NR, SBR, and BR are ordinary rubber materials; NBR is used for oil-resistant vulcanized rubber; CR is used for weather-resistant vulcanized rubber; IIR is used for high damping vulcanized rubber; Heat resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L23/22C08L23/28C08L23/16C08K13/02C08K5/01C08K5/103C08K5/1539C08K5/17B29B7/28B29B7/72B29C71/02
CPCC08L7/00B29B7/283B29B7/286B29B7/726B29B7/728B29C71/02C08L23/22C08L2205/035C08L23/286C08L23/16C08K13/02C08K5/01C08K5/103C08K5/1539C08K5/17
Inventor 周文平
Owner BENGBU LONGHUA DIE CASTING MACHINE CO LTD
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