Rubber softening agent and preparation method thereof

A rubber softener and bitumen technology, applied in building components, building insulation materials, construction, etc., can solve the problem that tires cannot be exported to EU countries, and achieve the effect of non-toxic and cost-saving products.

Active Publication Date: 2012-06-20
TIANJIN HANKE LUBRICANT PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the domestic rubber softeners used by tire manufacturers do not meet the EU safety standards, which directly leads to the inability of the tires produced to be exported to EU countries.

Method used

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Examples

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preparation example Construction

[0016] The preparation method of described rubber softener comprises the following steps successively:

[0017] (1) Heat the asphalt to 80°C-100°C until it becomes liquid and melt, stir well, keep the constant temperature at 80°C-100°C for 50-70 minutes;

[0018] (2) Add corresponding proportion of naphthenic oil, heat at constant temperature to 100-120°C, stir well, and the heating time is 40-60 minutes;

[0019] (3) After cooling, store at room temperature for 24-27 hours to obtain an asphalt-modified rubber softener.

Embodiment 1

[0021] (1) Heat 10 kg of asphalt to 80°C until it becomes liquid and melt, stir well, keep the constant temperature at 80°C for 50 minutes;

[0022] (2) Add 90kg of naphthenic oil, heat at constant temperature to 100C, stir well, and the heating time is 40 minutes;

[0023] (3) After cooling, store at room temperature for 24 hours to obtain an asphalt-modified rubber softener.

Embodiment 2

[0025] (1) Heat 30 kg of asphalt to 100°C until it becomes liquid and melt, stir well, keep the constant temperature at 100°C for 70 minutes;

[0026] (2) Add 70 kg of naphthenic oil, heat at a constant temperature to 120°C, stir well, and the heating time is 60 minutes;

[0027] (3) After cooling, store at room temperature for 27 hours to obtain an asphalt-modified rubber softener.

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Abstract

The invention discloses a rubber softening agent and a preparation method thereof. The rubber softening agent comprises the following raw material in part by weight: 10 to 30 percent of asphalt and 70 to 90 percent of naphthenic oil. The preparation method comprises: heating the asphalt to 80 to 100 DEG C till the asphalt is molten; fully stirring the molten asphalt, and keeping the temperature between 80 and 100 DEG C constantly for 50 to 70 minutes; adding naphthenic oil according to a corresponding ratio, heating the mixture at a constant temperature to 100 to 120 DEG C for 40 to 60 minutes with full stirring; and cooling, storing at room temperature for 24 to 27 hours and producing the rubber softening agent. The nontoxic asphalt-modified rubber softening agent which used to lack in China does not reach safety standards of European Union, thereby saving cost of China's tire manufacturers considerably.

Description

technical field [0001] The invention relates to a rubber softener and a preparation method thereof, in particular to a rubber softener for tires and a preparation method thereof. Background technique [0002] At present, the domestic rubber softeners used by tire manufacturers do not meet the EU safety standards, which directly leads to the inability of the tires produced to be exported to EU countries. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a rubber softener for rubber tires and a preparation method thereof. [0004] In order to solve the above technical problems, the technical solution adopted in the present invention is: a rubber softener, which is made up of the following raw materials in parts by weight: [0005] Bitumen 10%-30% [0006] Naphthenic oil 90%-70%. [0007] The preparation method of described rubber softener comprises the following steps successively: [0008] (1) Heat the asphalt t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L95/00C08K5/01
Inventor 王胜民王珧
Owner TIANJIN HANKE LUBRICANT PRODS
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