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Rubber product additive and preparation method for same

A technology for rubber products and additives, applied in the field of rubber product additives and its preparation, can solve the problems of no active agent, etc., achieve the effects of reducing adsorption, improving the working environment, and being environmentally friendly

Active Publication Date: 2016-09-21
丰城市友好化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But dibutylzinc thiophosphate is only an accelerator and has no effect as an active agent

Method used

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  • Rubber product additive and preparation method for same
  • Rubber product additive and preparation method for same
  • Rubber product additive and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: rubber product additive of the present invention, for making the derivant of phosphoric acid sulfuric acid as raw material, the mol ratio of raw material in its production is as follows:

[0029] The molar ratio of alcohol above dihydric to phosphorus pentasulfide is 2-4:1,

[0030] The molar ratio of divalent metal oxide to sulfuric acid is 1:1-2.

[0031] Preferably, the molar ratio of dihydric or higher alcohol to phosphorus pentasulfide is 3-4:1.

[0032] Preferably, the molar ratio of divalent metal oxides to sulfuric acid is 1:1.2-1.8.

[0033] Among them, sulfuric acid is prepared by the reaction of dibasic alcohols and phosphorus pentasulfide, the reaction temperature is 30 degrees Celsius to 90 degrees Celsius, the reaction humidity is below 80%, and the water content of dibasic alcohols is required to be below 0.2%. Add to the above alcohol;

[0034] Among them, the sulfuric acid salt is prepared by reacting sulfuric acid and metal oxides, the...

Embodiment 2

[0041] Embodiment 2: The production steps are the same as in Embodiment 1, except that the temperature for controlling the reaction between alcohols above the binary level and phosphorus pentasulfide is 60 degrees Celsius to 90 degrees Celsius, and the humidity is below 60%.

Embodiment 3

[0042] The formula and consumption of embodiment 3 and embodiment 4 are shown in the following table respectively:

[0043]

[0044]

[0045] The preparation steps of embodiment 3 and embodiment 4 are the same as the steps of embodiment 1 and embodiment 2, and the only difference is the formula and dosage.

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Abstract

The invention relates to a rubber product additive, which is a derivative of dialkylthiophosphoric acid prepared from raw materials alcohol with more than two bases, phosphorus pentasulfide and bivalent metal oxide, wherein the molar ratio of the raw materials during production is as follows: the molar ratio of the alcohol with more than two bases to the phosphorus pentasulfide is (1-4):1, and the molar ratio of the bivalent metal oxide to the dialkylthiophosphoric acid is 1:(1-2). The invention also provides a preparation method for the rubber product additive. According to the rubber product additive and the preparation method for the same, when a product produced by adopting the alcohol with more than two bases as a raw material of alkyl thiophosphate instead of butanol is used as a promoter and an activator for rubber mixing, the adsorption effects of white carbon black on auxiliaries can be reduced, environment-friendliness is achieved, no cancerogen nitrosamine is produced, and the working environment of a mixing operator can be improved.

Description

technical field [0001] The invention relates to the field of rubber production, in particular to a rubber product additive with active and promoting functions and a preparation method thereof. Background technique [0002] As a filler for rubber products, silica has advantages in wet grip and low rolling resistance. Now it is more and more used, but silica has strong adsorption, which will absorb the additives in the rubber formula and reduce its Efficiency, increase the use of additives, making the production cost rise. [0003] In addition, general-purpose accelerators will produce nitrosamine carcinogens during rubber mixing, which seriously affects the physical and mental health of rubber mixers. Therefore, many high-risk accelerators such as NOBS have been replaced by accelerators that do not produce nitrosamines. . Alkyl thiophosphates and esters, because their molecular structure does not contain secondary amine structures, do not produce nitrosamines, the US Food a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/5398C08L21/00C08L71/02C08K13/02C07F9/165
CPCC07F9/1651C08K5/5398C08L21/00C08L2205/03C08L71/02C08K13/02
Inventor 陈思佳
Owner 丰城市友好化学有限公司