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Machinable and ozone-resistant rubber material and preparation method thereof

A rubber material and ozone resistance technology, applied in the field of rubber materials, can solve the problems of poor ozone resistance, poor processing performance and high production cost, and achieve the effects of improving ozone resistance, processing resistance, and good compatibility.

Active Publication Date: 2014-04-30
NINGGUO ZHENGDAO RUBBER & PLASTIC PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The natural rubber products of the prior art have poor ozone resistance and processability, and in addition, the production cost is also relatively high

Method used

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  • Machinable and ozone-resistant rubber material and preparation method thereof
  • Machinable and ozone-resistant rubber material and preparation method thereof
  • Machinable and ozone-resistant rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Put 100 parts by mass of natural rubber into an internal mixer at one time and masticate at 60°C for 1-2 minutes to obtain plasticized raw rubber. Add 6 parts by mass of antioxidant RD, 5 parts by mass of zinc oxide, and 1.5 parts by mass of stearic acid to the plasticized raw rubber to start banburying. After some time, mix 25 parts by mass of EPDM powder, 60 parts by mass of Add carbon black N550 together and continue banburying. When more than 80% of the powder is finished, feed 25 parts by mass of naphthenic oil to continue banburying. When the temperature rises to 90°C, lift the pressure cover to the upper position, and after cleaning, press down the pressure cover to continue banburying with 1.5 parts by mass of sulfur S-80 and 4 parts by mass of accelerator CZ. When the temperature rises to 110°C, remove the glue to obtain the banbury rubber. Put the banbury rubber into the open mill, adjust the roller distance of the open mill to 6-10mm, cut the rub...

Embodiment 2

[0031] Example 2: Put 100 parts by mass of natural rubber into an internal mixer at one time and masticate at 60° C. for 1-2 minutes to obtain plasticized raw rubber. Add 6 parts by mass of antioxidant RD, 4 parts by mass of zinc oxide, and 1.5 parts by mass of stearic acid to the plasticized raw rubber to start banburying. After some time, mix 25 parts by mass of EPDM powder, 60 parts by mass of Add carbon black N550 together and continue banburying. When more than 80% of the powder is finished, feed 25 parts by mass of naphthenic oil to continue banburying. When the temperature rises to 90°C, lift the pressure cover to the upper position. After cleaning, press down the pressure cover to continue banburying with 1 mass part of sulfur S-80 and 4 mass parts of accelerator CZ. When the temperature rises to 110°C, remove the glue to obtain the banbury rubber. Put the banbury rubber into the open mill, adjust the roller distance of the open mill to 6-10mm, cut the rubber powder ...

Embodiment 3

[0032] Example 3: Put 100 parts by mass of natural rubber into an internal mixer at one time and masticate at 60° C. for 1-2 minutes to obtain plasticized raw rubber. Add 6 mass parts of antioxidant RD, 6 mass parts of zinc oxide, and 1.5 mass parts of stearic acid to the plasticized raw rubber to start banburying. After some time, 25 mass parts of EPDM powder, 70 mass parts Add carbon black N550 together and continue banburying. When more than 80% of the powder is finished, feed 30 parts by mass of naphthenic oil to continue banburying. When the temperature rises to 90°C, lift the pressure cover to the upper position. After cleaning, press down the pressure cover to continue banburying with 1 mass part of sulfur S-80 and 4 mass parts of accelerator CZ. When the temperature rises to 110°C, remove the glue to obtain the banbury rubber. Put the banbury rubber into the open mill, adjust the roller distance of the open mill to 6-10mm, cut the left and right sides of the mixed ru...

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Abstract

The invention discloses a machinable and ozone-resistant rubber material and a preparation method thereof. The rubber material consists of the following materials in parts by mass: 70-120 parts of natural rubber, 5-30 parts of ethylene-propylene-diene monomer (EPDM) rubber powder, 50-70 parts of carbon black, 20-30 parts of a softening agent, 4-6 parts of zinc oxide, 1-2 parts of stearic acid, 1-2 parts of sulfur, 3-5 parts of an accelerant and 4-8 parts of an anti-aging agent. According to the rubber material and the preparation method thereof, ozone-resistant performance of the natural rubber is enhanced through adding the EPDM rubber powder which is relatively high in content of a third monomer to the natural rubber; the EPDM rubber powder has good compatibility with the natural rubber, so that machining resistance of the rubber material is improved and cost is reduced.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a rubber material with machinability and ozone resistance and a preparation method thereof. Background technique [0002] Rubber materials are highly elastic polymer materials with reversible deformation. It is elastic at room temperature, can produce large deformation under a small external force, and can return to its original shape after the external force is removed. Rubber is divided into natural rubber and synthetic rubber. Natural rubber is a natural polymer compound with polyisoprene as the main component, which is composed of 91% to 94% rubber hydrocarbon (polyisoprene) and other components such as protein, fatty acid, ash, sugar, etc. . Natural rubber is the most widely used general-purpose rubber. The natural rubber products in the prior art have poor ozone resistance and processability, and in addition, the production cost is also relatively high. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L23/16C08K13/02C08K3/04C08K3/22C08K3/06C08K5/09
Inventor 夏礼安
Owner NINGGUO ZHENGDAO RUBBER & PLASTIC PARTS
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