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Special protective material for polar rubber and preparation method thereof

A technology of protective materials and polar rubber, which is applied in the field of special protective materials for polar rubber and its preparation. It can solve the problems of easy migration, frosting and high price, and achieve the effects of low price, alleviating adhesion and improving process performance.

Active Publication Date: 2020-06-16
常州市五洲化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Anti-aging agent NBC (nickel dibutyl dithiocarbamate) is a commonly used anti-ozone aging material for polar rubber, and can improve the heat resistance of polar rubber; however, it has the disadvantages of high price, easy migration and frosting

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  • Special protective material for polar rubber and preparation method thereof

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Effect test

Embodiment 1

[0021] A special protective material for polar rubber of the present invention consists of the following components (by weight): 40 parts of nickel dibutyldithiocarbamate, 30 parts of nickel terephthalate, and 30 parts of calcium terephthalate .

[0022] The method for preparing the special protective material for polar rubber comprises the following steps:

[0023] (1) Under constant stirring, mix alkali reduction waste water, dibutylamine, carbon disulfide and caustic soda in a certain proportion. After completely dissolving, add activated carbon with a mass percentage of 0.2% of the solution, and stir for 10 minutes to make it evenly dispersed in solution, and then filtered to obtain a decolorized, clear sodium salt solution;

[0024] (2) Under constant stirring, mix the sodium salt solution obtained in step (1) with the nickel chloride solution with a mass percentage of 35%, and continue to stir and react at a speed of 150 rpm for 60 minutes to obtain a mixed slurry A;

...

Embodiment 2

[0029] The difference between embodiment 2 and embodiment 1 is:

[0030] A special protective material for polar rubber of the present invention consists of the following components (by weight): 50 parts of nickel dibutyldithiocarbamate, 40 parts of nickel terephthalate, and 10 parts of calcium terephthalate .

[0031] The method for preparing the special protective material for polar rubber comprises the following steps:

[0032] (1) Under constant stirring, mix alkali reduction waste water, dibutylamine, carbon disulfide and caustic soda in a certain proportion. After completely dissolving, add activated carbon with a mass percentage of 0.2% of the solution, and stir for 20 minutes to make it evenly dispersed in solution, and then filtered to obtain a decolorized, clear sodium salt solution;

[0033] (2) Under continuous stirring, mix the sodium salt solution obtained in step (1) with the nickel chloride solution with a mass percentage of 60%, and continue to stir and reac...

Embodiment 3

[0037] The difference between embodiment 3 and embodiment 1 is:

[0038] A special protective material for polar rubber of the present invention consists of the following components (by weight): 45 parts of nickel dibutyldithiocarbamate, 35 parts of nickel terephthalate, and 20 parts of calcium terephthalate .

[0039] The method for preparing the special protective material for polar rubber comprises the following steps:

[0040] (1) Under constant stirring, mix the alkali reduction wastewater, dibutylamine, carbon disulfide and caustic soda in a certain proportion. After completely dissolving, add activated carbon with a mass percentage of 0.2% of the solution, and stir for 15 minutes to make it evenly dispersed in solution, and then filtered to obtain a decolorized, clear sodium salt solution;

[0041] (2) Under constant stirring, mix the sodium salt solution obtained in step (1) with the nickel chloride solution with a mass percentage of 45%, and continue to stir and rea...

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Abstract

The invention discloses a special protective material for polar rubber and a preparation method thereof. The protective material is composed of the following components (in parts by weight): 40-50 parts of nickel dibutyldithiocarbamate; 30 to 40 parts of nickel terephthalate; and 10 to 30 parts of calcium terephthalate. The preparation method of the protective material comprises the following steps: (1) mixing alkali deweighting wastewater, dibutylamine, carbon disulfide and caustic soda according to a certain ratio, dissolving, and filtering with activated carbon to obtain a clarified solution; (2) reacting the solution obtained in the step (1) with a nickel chloride solution to obtain slurry A; (3) reacting the alkali deweighting water filtered by the activated carbon with a calcium chloride solution to obtain slurry B; and (4) uniformly mixing the slurry A in the step (2) and the slurry B in the step (3), separating, washing and drying to obtain a target product. The protective material disclosed by the invention is moderate in price, good in dispersity in a rubber material and excellent in protective performance, and can also improve the defect that the rubber material is easyto adhere.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a special protective material for polar rubber and a preparation method thereof. Background technique [0002] Among the commonly used rubber types, polar rubber mainly includes neoprene, nitrile rubber, hydrogenated nitrile rubber, carboxylated nitrile rubber, fluororubber, polyurethane rubber, polyether rubber, polysulfide rubber, acrylate rubber, chlorinated Polyvinyl chloride rubber, chlorosulfonated polyethylene rubber, etc. The properties of this type of rubber are: good oil resistance, good heat resistance, high strength and low insulation, so it is often used in oil-resistant and high-temperature-resistant occasions. [0003] During the processing, storage and use of rubber and its products, aging symptoms such as cracking, stickiness, hardening, softening, pulverization, discoloration, and mildew will appear due to the combined effects of internal and extern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/39C08K5/098C08L23/34C08L9/02C08K13/02C08K3/22C08K3/06C08K3/04
CPCC08K5/098C08K5/39C08K2003/2296C08K2201/014C08L23/34C08L9/02C08K13/02C08K3/22C08K3/06C08K3/04
Inventor 张莉娜唐英俊方春平
Owner 常州市五洲化工有限公司
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