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Environmental-friendly rubber homogenizing agent and preparation method thereof

An environmentally friendly rubber and leveling agent technology, applied in the field of rubber additives, can solve the problems affecting the unique performance of the leveling agent, high content of carcinogenic polycyclic aromatic hydrocarbons, and insufficient treatment, so as to reduce the carcinogens of polycyclic aromatic hydrocarbons and improve the technical content and added value, energy saving effects

Active Publication Date: 2015-01-28
QINGDAO LINK OIL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, domestic enterprises and scientific research institutes have also developed and launched many similar products, but there are two main problems: First, although most of the products are similar to foreign products in terms of raw material types, there is a big difference in element composition, which affects Due to the unique properties of leveling agent, it can only be used as a softening plasticizer
Second, due to insufficient treatment of asphalt and other raw materials, most products have the problem of high content of carcinogenic polycyclic aromatic hydrocarbons, which do not meet the requirements of EU REACH regulations
Patent 201210286698.9 discloses a preparation method of an environmentally friendly rubber plasticizer leveling agent. In this method, the softening point of the product is improved by chemical modification and vacuum distillation. This method has a small increase and low efficiency

Method used

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  • Environmental-friendly rubber homogenizing agent and preparation method thereof
  • Environmental-friendly rubber homogenizing agent and preparation method thereof
  • Environmental-friendly rubber homogenizing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation of modified asphalt: Add 70Kg of road petroleum asphalt and 1.5Kg of phosphoric acid to the reactor, raise the temperature to 255°C, and use an air compressor to blow air with a pressure of 0.2MPa and a flow rate of 2L / (Kg min). Put it into the reaction kettle, and when the softening point of the material reaches 95-100°C, stop blowing in the air, open the vacuum valve, and vacuumize to remove the light components. After the temperature of the material dropped to 160° C., 20 Kg of terephthalic alcohol was added, and the reaction was stirred for 1 hour.

[0022] Preparation of homogeneous agent: Add 70Kg of C5 petroleum resin and 2Kg of p-toluenesulfonic acid into the reaction kettle, heat to melt and stir, add 30Kg of modified asphalt, stir to raise the temperature to 130°C, keep the temperature and stir for 15 minutes to obtain a uniform agent, the measured softening point is 103°C.

Embodiment 2

[0024] A kind of preparation method of environment-friendly rubber leveling agent, concrete steps are as follows:

[0025] Preparation of modified asphalt: Add 90Kg of road petroleum asphalt and 2Kg of phosphoric acid to the reactor, raise the temperature to 265°C, and use an air compressor to blow air with a pressure of 0.4MPa and a flow rate of 2.5L / (Kg min). Put it into the reaction kettle, and when the material reaches the softening point of 90-95°C, stop blowing in the air, open the vacuum valve, and vacuumize to remove the light components. After the temperature of the material dropped to 150° C., 20 Kg of paraformaldehyde was added, and the reaction was stirred for 1 hour.

[0026] Preparation of homogenizer:

[0027] Add 90Kg of C9 petroleum resin and 2Kg of p-toluenesulfonic acid into the reaction kettle, heat to melt and stir, add 20 parts of modified asphalt, stir to raise the temperature to 125°C, keep stirring at the temperature for 15 minutes, and obtain the hom...

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Abstract

The invention relates to an environmental-friendly rubber homogenizing agent. The environmental-friendly rubber homogenizing agent is prepared from the following components in parts by weight: 70-90 parts of modified petroleum asphalt, 10-30 parts of carbon-hydrogen resin and 1.5-2 parts of p-toluene sulphonic acid, wherein the modified petroleum asphalt is prepared from the following components in parts by weight: 70-90 parts of petroleum asphalt, 1.5-2 parts of phosphoric acid and 10-25 parts of a modifier. The environmental-friendly rubber homogenizing agent has the beneficial effects that comprehensively considering from environmental protection property and using property of a product, at higher temperature, air, the modifier and asphalt component generate chemical reaction in the uniformly mixing process by utilizing oxidation of the air and chemical modification of the modifier, and then the amount of polycyclic aromatic hydrocarbons carcinogen is reduced when the amount of softening point of asphalt is remarkably increased; selected formula system and preparation method can reach good effect, and the acquired homogenizing agent is low in polycyclic aromatic hydrocarbons content and accords with the requirement of European Union REACH Regulations; meanwhile, with the adoption of the environmental-friendly rubber homogenizing agent, blending uniformity of rubber can be remarkably improved, mixing quality is improved, and energy is saved, thus increasing technical content and added value of the product.

Description

technical field [0001] The invention relates to the technical field of rubber additives, in particular to an environment-friendly rubber leveling agent and a preparation method thereof. Background technique [0002] Homogeneous agent is a product that can improve the homogeneity of elastomer mixtures that are difficult to mix uniformly. It can reduce the fluctuation of viscosity within and between batches, and at the same time promote the absorption and dispersion of other compounding ingredients, especially fillers. [0003] At present, the leveling agent products commonly used by domestic rubber processing enterprises are mainly imported, such as 40MSF, TNB88, etc., which have excellent performance but high prices. In recent years, domestic enterprises and scientific research institutes have developed and launched many similar products, but there are two main problems: First, although most products are similar to foreign products in terms of raw material types, there are l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L57/02C08L95/00C08K5/42C10C3/04C10C3/02C08L23/28C08L7/00
Inventor 傅秀成
Owner QINGDAO LINK OIL PROD
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