Rubber block isolating agent for breaking natural rubber, and preparation method thereof

A natural rubber and release agent technology, applied in the field of rubber additives, can solve problems such as endangering the health of operators, affecting the performance of compound rubber, polluting the working environment, etc., and achieve the effects of benefiting human health, improving isolation performance, and saving consumption

Inactive Publication Date: 2017-09-12
青岛福凯橡塑新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of crushing, mixing, storing and automatic weighing of natural rubber, the crushed rubber blocks are easy to stick to each other and then aggregate into blocks, so it is necessary to coat the surface of the rubber block with a release agent To prevent them from sticking to each other, the fastest release agent currently used is generally powdered whi

Method used

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  • Rubber block isolating agent for breaking natural rubber, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A rubber block release agent for natural rubber crushing, the rubber block release agent includes the following components in parts by weight:

[0026] 10-20 parts of fatty acid ester, 10-20 parts of fatty acid, 1-10 parts of organic filler, 60-75 parts of inorganic carrier;

[0027] The fatty acid ester is one or more of pentaerythritol tetrastearate, glyceryl stearate, and propylene glycol stearate;

[0028] The fatty acid is one or more of stearic acid, palmitic acid and lauric acid;

[0029] The organic filler is one or a combination of fatty acid calcium and fatty acid zinc;

[0030] The inorganic carrier is one or a combination of silicate fillers and calcium carbonate fillers;

[0031] The silicate filler is white carbon black or kaolin.

[0032] The preparation method of above-mentioned rubber block release agent comprises the steps:

[0033] S1. Add fatty acid ester, fatty acid and organic filler into the reaction kettle, heat and melt while stirring and ke...

Embodiment 2

[0037] A rubber block release agent for natural rubber crushing, the rubber block release agent includes the following components in parts by weight:

[0038] 10 parts of pentaerythritol tetrastearate, 15 parts of palmitic acid, 5 parts of calcium fatty acid, 30 parts of white carbon black, 40 parts of calcium carbonate.

[0039] The preparation method of above-mentioned rubber block release agent comprises the steps:

[0040] S1. Add 10 parts of pentaerythritol tetrastearate, 15 parts of palmitic acid, and 5 parts of fatty acid calcium into the reaction kettle, heat and melt while stirring and keep the temperature at 110° C. to obtain a molten mixture;

[0041] S2. Add 30 parts of white carbon black and 40 parts of calcium carbonate to the high-speed mixer, and spray the molten mixture obtained in step 1 into the mixer during high-speed stirring. After spraying, continue to stir at high speed for 15 minutes;

[0042] S3. Add the mixture prepared in step 2 to a granulator to ...

Embodiment 3

[0044] A rubber block release agent for natural rubber crushing, the rubber block release agent includes the following components in parts by weight:

[0045] 10 parts of glyceryl stearate, 10 parts of fatty acid, 5 parts of zinc unsaturated fatty acid, 25 parts of kaolin, 50 parts of calcium carbonate.

[0046] The preparation method of above-mentioned rubber block release agent comprises the steps:

[0047] S1. Add 10 parts of glyceryl stearate, 10 parts of fatty acid, and 5 parts of unsaturated fatty acid zinc into the reaction kettle, heat and melt while stirring and keep the temperature at 115° C. to obtain a molten mixture;

[0048] S2. Add 25 parts of kaolin and 50 parts of calcium carbonate to the high-speed mixer, and spray the molten mixture obtained in step 1 into the mixer during high-speed stirring. After the spraying is completed, continue to stir at high speed for 20 minutes;

[0049] S3. Add the mixture prepared in step 2 to a granulator to granulate and sieve...

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Abstract

The invention discloses a rubber block isolating agent for breaking natural rubber, and a preparation method thereof. The rubber block isolating agent comprises the following components in parts by weight: 10 to 20 parts of fatty acid ester, 10 to 20 parts of fatty acid, 1 to 10 parts of organic filler, and 60 to 75 parts of an inorganic carrier, wherein the fatty acid ester is one or more of pentaerythritol tetrastearate, glyceryl stearate and propylene glycol stearate; the fatty acid is one or more of stearic acid, palmitic acid and lauric acid; the organic filler is one or combination of fatty acid calcium and fatty acid zinc; the inorganic carrier is one or combination of silicate filler and calcium carbonate filler. The rubber block isolating agent can be combined with a broken rubber block quickly to isolate the rubber block so as to prevent adhesion again, dust cannot be generated during spraying, the usage of the isolating agent is reduced, and the working environment is improved.

Description

technical field [0001] The invention relates to the technical field of rubber additives, in particular to a rubber block release agent for crushing natural rubber and a preparation method thereof. Background technique [0002] In order to improve the quality of mixed rubber and reduce the energy consumption during the mixing process, some domestic tire manufacturers have launched natural rubber crushing production lines one after another. On the other hand, it can reduce the impact of the quality fluctuation of natural rubber on the mixed rubber material, and improve the process stability of the mixed rubber material. The natural rubber crushing production line is basically composed of three parts: the first part is the crushed rubber system, the main function is to crush a piece of natural rubber of about 35Kg into small rubber blocks with a diameter of less than 80mm, and the crushed rubber needs to be continuously added during the crushing process Use a release agent to ...

Claims

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Application Information

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IPC IPC(8): C08K5/103C08K5/09C08K5/098C08K3/36C08K3/34C08K3/26C08L7/00C08J7/06
CPCC08K5/103C08J7/06C08K3/26C08K3/346C08K3/36C08K5/09C08K5/098C08L7/00
Inventor 傅秀成徐正润
Owner 青岛福凯橡塑新材料有限公司
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