Rubber protecting wax and preparation method thereof

A technology of rubber protective wax and microcrystalline wax, which is applied in the field of rubber additives, can solve the problems of lack of pertinence and poor protective effect, and achieve the effects of high density, extended service life, and good wax film migration performance

Active Publication Date: 2013-08-21
QINGDAO FIHONOR CHEM SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, an object of the present invention is to propose a rubber protective wax and a preparation method thereof, to solve the problems that the above-mentioned protective wax lacks pertinence and poor protective effect in different temperature ranges of rubber products

Method used

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  • Rubber protecting wax and preparation method thereof
  • Rubber protecting wax and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A rubber protection wax, which contains components and the weight percentage of each component: 22.0% fully refined paraffin wax, 26.0% semi-refined paraffin wax, 51.0% microcrystalline wax, and 1.0% EVA copolymer.

[0029] Wherein, the fully refined paraffin wax is 62# fully refined petroleum wax with a melting point of 63.8°C and a normal paraffin content of 65.5%; the semi-refined paraffin wax is 58# semi-refined petroleum wax with a melting point of 60.5°C and normal The alkane content is 72.8%; the microcrystalline wax is 75# microcrystalline wax with a melting point of 74.5°C and a normal alkane content of 45.7%.

[0030] Put the weighed fully refined paraffin wax and semi-refined paraffin wax into the reaction kettle, slowly raise the temperature to 135°C, after the materials are completely melted, stir at 50 rpm for 45 minutes, then add microcrystalline wax and EVA polymer, and stir for 60 minutes Finally, after all the materials are melted, they pass through a ...

Embodiment 2

[0032] A rubber protection wax, which contains components and the weight percentage of each component: 25.0% fully refined paraffin wax, 28.0% semi-refined paraffin wax, 45.5% microcrystalline wax, and 1.5% EVA copolymer.

[0033] Wherein, the fully refined paraffin wax is 62# fully refined petroleum wax with a melting point of 63.8°C and a normal paraffin content of 65.5%; the semi-refined paraffin wax is 58# semi-refined petroleum wax with a melting point of 60.5°C and normal The alkane content is 72.8%; the microcrystalline wax is 75# microcrystalline wax with a melting point of 74.5°C and a normal alkane content of 45.7%.

[0034] Put the weighed fully refined paraffin wax and semi-refined paraffin wax into the reaction kettle, slowly raise the temperature to 130°C, stir at 60 rpm for 15 minutes after all the materials are melted, add microcrystalline wax and EVA polymer, and stir for 80 minutes Finally, after all the materials are melted, they pass through a filter to fil...

Embodiment 3

[0036] A rubber protective wax, which contains components and the weight percentage of each component are: 27.0% fully refined paraffin wax, 29.0% semi-refined paraffin wax, 42.0% microcrystalline wax, and 2.0% EVA copolymer.

[0037] Wherein, the fully refined paraffin wax is 64# fully refined petroleum wax with a melting point of 65.2°C and a normal paraffin content of 63.7%; the semi-refined paraffin wax is 62# semi-refined petroleum wax with a melting point of 62.5°C and normal The alkane content is 69.1%; the microcrystalline wax is 75# microcrystalline wax with a melting point of 74.1°C and a normal alkane content of 44.6%.

[0038] Put the weighed fully refined paraffin wax and semi-refined paraffin wax into the reaction kettle, slowly raise the temperature to 140°C, stir at 70 rpm for 20 minutes after all the materials are melted, add microcrystalline wax and EVA polymer, and stir for 60 minutes Finally, after all the materials are melted, they pass through a filter to...

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Abstract

The invention relates to rubber protecting wax which comprises the components in percentage by weight: 20-40% of fully refined paraffin wax, 25-45% of half refined paraffin wax, 20-53% of microcrystalline wax and 0.5-5% of ethylene-vinyl acetate copolymer EVA. The invention further discloses a preparation method of the rubber protecting wax. The rubber protecting wax provided by the invention is used in a rubber product and has a good protective effect, and the service life of the rubber product can be prolonged.

Description

technical field [0001] The invention belongs to the field of rubber additives, in particular to a rubber protective wax and a preparation method thereof. Background technique [0002] Rubber is the product of vulcanization and crosslinking of hydrocarbon polymers. The existence of unsaturated double bonds makes rubber highly elastic, but the chemical reactivity of unsaturated double bonds makes rubber easy to react with ozone and its chemicals in the air, and aging due to light and heat, breaking double bonds, Loss of elasticity, resulting in cracks. [0003] Rubber protective wax is a physical anti-aging agent. When its content in the rubber compound exceeds its solubility in rubber, the protective wax is sprayed on the surface of the product to form a physical protective film, which can effectively prevent the ozone of the product. Cracked. Famous foreign rubber protective wax production companies include Rheinland, AStoR and Bairuimei. The products they produce focus o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L91/06C08L23/08
Inventor 傅秀成
Owner QINGDAO FIHONOR CHEM SCI & TECH
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