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A novel high-efficiency bio-based phosphite antioxidant and preparation method thereof

A technology of ester antioxidant and base phosphorous acid, applied in chemical instruments and methods, compounds of group 5/15 elements of the periodic table, organic chemistry, etc., can solve problems such as hazards and restrictions, and achieve high molecular weight, Excellent thermal stability and excellent oxidation resistance

Active Publication Date: 2020-06-02
SHANDONG LINYI SUNNY WEALTH CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, nonylphenol can continuously accumulate in organisms through the food chain, so studies have shown that even if the emission concentration is very low, it is extremely harmful
Therefore, the application of TNPP with nonylphenol as the main raw material is gradually restricted

Method used

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  • A novel high-efficiency bio-based phosphite antioxidant and preparation method thereof
  • A novel high-efficiency bio-based phosphite antioxidant and preparation method thereof
  • A novel high-efficiency bio-based phosphite antioxidant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The synthesis of the pentadecylphenol of embodiment 1

[0049] Add 986 grams of cardanol into a clean 2L pressure reactor, add 5 grams of Raney nickel catalyst, and replace the air in the reactor with nitrogen until the nitrogen content of the gas discharged from the outlet is ≥99.5%, and the hydrogen flow rate is controlled through the connected hydrogen cylinder. Hydrogen replacement, after the replacement, re-flow hydrogen to the pressure of about 4MPa in the kettle, stop the hydrogen flow, close the hydrogen valve, seal the reaction kettle, gradually raise the temperature, observe the reaction pressure during the heating process, control the pressure not to exceed 5MPa by adjusting the heating speed, and keep the stirring speed at about 300r / min, heat up to about 120°C in about 2 hours, keep the reaction at the reaction temperature of 120-140°C for 3 hours, cool down to below 45°C after the reaction is completed, slowly open the vent valve, and restore the normal pre...

Embodiment 2

[0050] The synthesis of the pentadecylphenol of embodiment 2

[0051] Add 986 grams of cardanol into a clean 2L pressure reactor, add 8 grams of Raney nickel catalyst, and replace the air in the reactor with nitrogen until the nitrogen content of the gas discharged from the outlet is ≥99.5%, and the hydrogen flow rate is controlled through the connected hydrogen cylinder. Hydrogen replacement, after the replacement, re-flow hydrogen to the pressure in the kettle to about 4MPa, stop the hydrogen flow, close the hydrogen valve, seal the reaction kettle, gradually raise the temperature, observe the reaction pressure during the heating process, control the pressure in the kettle to not exceed 5MPa by adjusting the heating speed, and keep stirring The speed is about 300r / min, the temperature is raised to about 110°C in about 1.5h, and the reaction is maintained at a reaction temperature of 110-130°C for 2.5 hours. The reaction product is released, transferred to a four-neck flask f...

Embodiment 3

[0052] The synthesis of the pentadecylphenol of embodiment 3

[0053] Add 986 grams of cardanol into a clean 2L pressure reactor, add 3 grams of Raney nickel catalyst, and replace the air in the reactor with nitrogen until the nitrogen content of the gas discharged from the outlet is ≥99.5%, and the hydrogen flow rate is controlled through the connected hydrogen cylinder. Hydrogen replacement, after the replacement, re-flow hydrogen until the pressure in the kettle is about 4.5MPa, stop the hydrogen flow, close the hydrogen valve, seal the reaction kettle, gradually raise the temperature, observe the reaction pressure during the heating process, control the pressure not to exceed 5.5MPa by adjusting the heating speed, and keep stirring The speed is about 300r / min, the temperature is raised to about 120°C in about 2.5h, and the reaction is maintained at a reaction temperature of 120-140°C for 3.5 hours. The reaction product is released, transferred to a four-neck flask for vacu...

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Abstract

The invention discloses a novel efficient biology-based phosphite ester antioxidant and two preparation methods thereof. The structural formula of the antioxidant is as shown in the specification. Thepreparation methods are characterized in that cardanol is subjected to hydrogenation to obtain 3-pentadecyl-phenol, and the 3-pentadecyl-phenol, phosphorus trichloride and quaternary pentane are allowed to have esterification reaction under certain reaction conditions to obtain the biology-based phosphite ester antioxidant. The novel efficient biology-based phosphite ester antioxidant has the advantages that the antioxidant does not contain nonyl phenol and is large in molecular weight, green, environmentally friendly and safe; due to the fact that the antioxidant contains two trivalent phosphorus, each trivalent phosphorus contains three P-O bonds, and P is positively trivalent, the antioxidant can combine with instable components in polymer to generate oxide, and the antioxidant is goodin effect.

Description

technical field [0001] The invention relates to an antioxidant for polymer materials, in particular to a novel high-efficiency bio-based phosphite antioxidant and a preparation method thereof. Background technique [0002] During processing and long-term use, polymers are susceptible to light and heat, oxidized by oxygen in the air, lose mechanical properties, discoloration, cracks, loss of gloss and other changes, and the appearance becomes unattractive. Antioxidants need to be added to improve the processing stability and long-term stability of the polymer. Antioxidants are such a class of chemical substances, when only a small amount exists in the polymer system, they can delay or inhibit the oxidation process of the polymer, thereby preventing the aging of the polymer and prolonging its service life, also known as "Anti-aging agent". [0003] The types of antioxidants are: hindered phenol antioxidants, phosphite antioxidants, thio antioxidants, etc. [0004] Phosphite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/6574C08K5/527C08L23/12
CPCC07F9/65744C08K5/527C08L2201/08C08L23/12
Inventor 付建英朱优江
Owner SHANDONG LINYI SUNNY WEALTH CHEM CO LTD
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