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Anti-oxidation stabilizer composition and modified cis-polybutadiene

An anti-oxidative stabilizer, butadiene rubber technology, applied in the rubber field, can solve the problem of less new stabilizer and its composition, etc.

Active Publication Date: 2019-10-08
SHANDONG LINYI SUNNY WEALTH CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two commonly used antioxidants TNPP and BHT have health, safety and environmental protection problems.
At present, it is urgent to solve the safety, health and environmental problems of the existing antioxidant system of butadiene rubber. After searching, it is found that there are few studies on the new stabilizer of butadiene rubber and its composition, especially for the safety of butadiene rubber. , Environmentally friendly, green bio-based antioxidants and their compositions are less researched

Method used

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  • Anti-oxidation stabilizer composition and modified cis-polybutadiene
  • Anti-oxidation stabilizer composition and modified cis-polybutadiene
  • Anti-oxidation stabilizer composition and modified cis-polybutadiene

Examples

Experimental program
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Embodiment 1～7

[0049] Take 1500ml of glue solution and place them in different 2L large beakers, add stabilizers of different components shown in Table 1 to the corresponding large beakers according to the amount of 0.3% to 0.6% of the dry glue mass, and put the glue solution in the large beaker. Put the beaker into a 60°C constant temperature water bath, stir evenly at a constant temperature, pour the glue with the stabilizer into the glue pot respectively, open the steam valve to let steam into the glue pot to boil the glue, boil the glue for about 15 minutes, take it out The circle-shaped white butadiene rubber solid is dried on a double-roll mill at 100°C to obtain raw rubber samples with different stabilizer formulations, that is, modified butadiene rubber. The physical and chemical properties of the samples before aging are tested, and then the samples are placed Carry out aging test at 105 ℃, take samples every two days to test the physical and chemical properties of the sample, test M...

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Abstract

The invention provides an anti-oxidation stabilizer composition and modified cis-polybutadiene. The composition comprises bis(m-pentadecylphenyl)]pentaerythritol diphosphite, a hindered phenolic stabilizer and ditridecyl thiodipropionate in a mass ratio of 1:(0.2-5):(0-1), wherein the hindered phenolic stabilizer is one or more selected from beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid isooctanol ester, beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid tridecyl alcohol ester and bis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]octadecylamine diethanol ester. Accordingto the composition provided by the invention, under the combined action of the above components in the mass ratio, the composition can be applied to cis-polybutadiene and improve oxidation resistanceof the cis-polybutadiene; and the modified cis-polybutadiene has Mooney viscosity of 44.2-45.2 Pa*S, oxidation induced time (OIT) of 108.2-112.6 min and a yellow index (YI) of 11.8-15.9 after being aged for 192 h.

Description

technical field [0001] The invention belongs to the technical field of rubber, in particular to an anti-oxidation stabilizer composition and modified butadiene rubber. Background technique [0002] During processing and daily use, polymer materials are vulnerable to oxygen, light, heat, and metal ion impurities in the air, and free radical reactions occur, which in turn leads to discoloration, cracking, and loss of gloss in the polymer. On the one hand, the appearance It becomes unsightly, and what is more serious is the decline in mechanical properties. Due to the large number of double bonds in the rubber molecular chain, the problem of thermo-oxidative aging is more prominent. Thermo-oxidative aging is a change that occurs in all kinds of rubber all the time, which is the cause of rubber damage. The main reason is that it seriously affects the appearance and life of the rubber. It is necessary to add a stabilizer to improve the processing stability and long-term stability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/527C08K5/38C08K5/134C08K5/17C08L9/00
CPCC08K5/1345C08K5/175C08K5/38C08K5/527C08L2201/08C08L9/00
Inventor 付建英
Owner SHANDONG LINYI SUNNY WEALTH CHEM CO LTD
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