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A kind of rare earth rubber antioxidant and its application

A rubber antioxidant and rare earth technology, which is applied to the field of rubber antioxidants containing rare earth substances, can solve problems such as inconvenient storage and transportation, and achieve the effects of low cost, improved compatibility and simple production.

Active Publication Date: 2011-12-14
广东炜林纳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process can reduce the cost and increase the yield of the product, but it still belongs to the aniline rubber anti-aging agent, and this rubber anti-aging agent is in liquid state, so it is inconvenient to store and transport

Method used

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  • A kind of rare earth rubber antioxidant and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Commercially available adipic acid and stearic acid are melted at 80-120°C, start the agitator and put in a catalytic amount of glacial acetic acid, after stirring evenly, add La at 80-105°C 2 o 3 React with CaO and pentaerythritol at 105-140°C for 3-3.5 hours, and after purification and other treatments, the rare earth antioxidant WPG (its general formula is LaCa(C 18 h 35 o 2 ) 2.6 (C 5 h 7 o 4 ) 1.3 (C 6 h 8 o 4 ) 0.8 ).

[0034] Thin pass 100 grams of natural rubber 6 times, each time the rubber materials are continuously stacked until all the rubber passes through the double rollers, and then the rubber blocks are turned 90 degrees and placed vertically in the open mixer, and continue processing in this way; after that Add 5 grams of zinc oxide and 2 grams of stearic acid. When the powder is completely eaten, cut a 3 / 4 knife on each side, make a triangle bag, and then add 2 grams of rare earth anti-aging agent WPG. When the powder is completely eaten, c...

Embodiment 2

[0036] Commercially available sebacic acid and epoxy oleic acid are melted at 80-120°C, start the agitator and put in catalytic amount of glacial acetic acid, after stirring evenly, add refined mixed light rare earth oxide (oxidized Lanthanum and cerium oxide) and ZnO and pentaerythritol, react at 105-140°C for 3-3.5 hours, and after purification and other treatments, the rare earth anti-aging agent WPC can be obtained.

[0037] Thin pass 100 grams of natural rubber 6 times, each time the rubber materials are continuously stacked until all the rubber passes through the double rollers, and then the rubber blocks are turned 90 degrees and placed vertically in the open mixer, and continue processing in this way; after that Add 5 grams of zinc oxide and 2 grams of stearic acid. When the powder is completely eaten, cut a 3 / 4 knife on each side, make a triangle bag, and then add 2 grams of rare earth anti-aging agent WPC. When the powder is completely eaten, cut off each side 3 / 4 kn...

Embodiment 3

[0039] Thin pass 100 grams of natural rubber 6 times, each time the rubber materials are continuously stacked until all the rubber passes through the double rollers, and then the rubber blocks are turned 90 degrees and placed vertically in the open mixer, and continue processing in this way; after that Add 5 grams of zinc oxide and 2 grams of stearic acid. When the powder is completely eaten, cut a 3 / 4 knife on each side, make a triangle bag, and then add 3 grams of rare earth anti-aging agent WPG. When the powder is completely eaten, cut off each side 3 / 4 knife at a time, make a triangle bag; then add 1.5 grams of vulcanization accelerator CZ and 0.5 grams of vulcanization accelerator DM until the powder is completely eaten, cut 3 / 4 knife on each side, make a triangle bag; finally add 1.5 Gram sulfur, cut a 3 / 4 knife on each side, make a triangular bag three times, then reduce the roller distance, thin the sheet four times, and place it on the polyester film to stand for 3 hou...

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PUM

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Abstract

The invention discloses a novel rubber antioxidant containing rare earth substances and its application in natural rubber. In the rubber antioxidant of the present invention, the rare earth substances are composed of one or more inorganic substances containing light rare earth elements, one or more inorganic substances containing other metal elements other than rare earth elements, and one or more carbon A substance formed by the reaction of organic acids and / or organic acid derivatives with a chain length of C1 to C22. The rubber anti-aging agent of the invention has the characteristics of diversified anti-aging properties, non-toxic and non-polluting. In addition, the anti-aging agent also has the function of processing and lubrication, which helps to disperse the rubber filler and improve the compatibility between the rubber and the inorganic filler.

Description

technical field [0001] The invention relates to a rubber antioxidant and its application, more specifically, the invention relates to a rubber antioxidant containing rare earth substances and its application. Background technique [0002] Polymer materials, especially rubber, are often prone to degradation and crosslinking reactions under the conditions of heat, light and oxygen, destroying the structure and performance of rubber. In order to solve the problem of rubber aging, appropriate additives are usually added to the rubber to inhibit or delay the aging process and improve the application performance and service life of the rubber. This additive used to prevent rubber from oxidative aging is an anti-aging agent. [0003] The main function of the anti-aging agent is to block the damage to the rubber surface due to factors such as heat, oxygen, ozone, variable price metal ions, mechanical stress, light, and high-energy rays inside the rubber during the long-term storage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/098C08L21/00
Inventor 郑德陈俊贾德民陈玉坤钱玉英冷海强
Owner 广东炜林纳新材料科技有限公司
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