Rare earth rubber aging inhibitor and application thereof

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, simple production and improved compatibility.

Active Publication Date: 2009-11-11
广东炜林纳新材料科技有限公司
View PDF3 Cites 11 Cited by
  • 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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rare earth rubber aging inhibitor and application thereof

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a novel rubber aging inhibitor containing rare earth substances and application of the same in natural rubber. In the rubber aging inhibitor, the rare earth substances are formed by reaction of more than one inorganic substance containing light rare earth element, more than one inorganic substance containing other metallic elements except the rare earth element, and more than one organic acid with the carbon chain length of between C1 and C22 and/or derivative of the organic acid. The rubber aging inhibitor has the characteristics of diverse anti-aging property, non-toxicity and non pollution. Moreover, the aging inhibitor also has the functions of processing and lubrication, is favorable for the dispersion of rubber filler, and improves the compatibility between rubber and 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap