Process of preparing natural rubber filler with solid waste oil shale

A solid waste and natural rubber technology, which is applied in the field of preparing natural rubber fillers from oil shale solid waste, can solve the problems of accelerated aging of natural rubber, low oil content, and low refining value, and achieve improved aging resistance, Reduction of environmental pollution and improvement of aging performance

Inactive Publication Date: 2007-08-22
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It has been reported in the literature that under the synergistic effect of potassium acetate and KOH, the crystal structure of kerogen shale can be changed into an amorphous structure as a filler for natural rubber, but the kerogen shale treatment process is relatively complicated
[0007] There are also reports in the literature that oil shale slag is crushed or surface-modified and directly added to rubber as a filler. However, the composition of oil shale solid waste accumulated in the field is relatively complex, and the composition of samples from different layers, different locati...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing natural rubber filler by using oil shale solid waste, which comprises the following steps: oil shale, oil shale slag, surrounding rock and rock mud are prepared in a ratio of 10:50:20:20 for oil shale solid After the mixture is dried, it is ground in a vibration mill for 10 seconds, and then in a fast grinder for 15 minutes to obtain an oil shale mixture powder with a particle size of 3-15 μm. Put the oil shale mixture powder into a high-speed mixer, add calcium stearate of 1% by mass of the oil shale mixture powder, and carry out surface modification at 170°C for 20 minutes to obtain modified oil shale Powder mixture. The mass ratio of the modified oil shale mixture powder to the antioxidant is 50:2.5 and the modified oil shale mixture powder and the antioxidant are selected to obtain natural rubber filler; wherein the antioxidant is antioxidant 4010NA and antioxidant RD, Anti-aging agent 4010NA 1.5, anti-aging agent RD1.0.

[0033] Application...

Embodiment 2

[0036]A method for preparing natural rubber filler by using oil shale solid waste, which comprises the following steps: oil shale, oil shale slag, surrounding rock and rock mud are prepared in a ratio of 10:50:20:20 for oil shale solid After the mixture is dried, it is ground in a vibration mill for 10 seconds, and then in a fast grinder for 15 minutes to obtain an oil shale mixture powder with a particle size of 3-15 μm. Put the oil shale mixture powder into a high-speed mixer, add calcium stearate of 1% by mass of the oil shale mixture powder, and carry out surface modification at 170°C for 20 minutes to obtain modified oil shale Powder mixture. The mass ratio of the modified oil shale mixture powder and the antioxidant is 60: 2.5 and the modified oil shale mixture powder and the antioxidant are selected to obtain natural rubber filler; wherein the antioxidant is antioxidant 4010NA and antioxidant RD, Anti-aging agent 4010NA 1.5, anti-aging agent RD1.0.

[0037] Applicatio...

Embodiment 3

[0040] A kind of method utilizing oil shale solid waste to prepare natural rubber filler, it comprises the following steps: oil shale slag is first dried, grinds 10 seconds in vibration mill, then grinds 15 minutes in quick grinder, obtains Oil shale slag powder with a particle size of 3-15 μm. Put the oil shale slag powder into a high-speed mixer, add calcium stearate with 1% of the mass of the oil shale slag powder, and perform surface modification at 170°C for 20 minutes to obtain modified oil shale Slag powder. According to the mass ratio of modified oil shale slag powder and anti-aging agent, the modified oil shale slag powder and anti-aging agent are selected to obtain natural rubber filler; wherein the anti-aging agent is anti-aging agent 4010NA and anti-aging agent RD, Antiaging agent 4010NA 1.5, antiaging agent RD 1.0.

[0041] Application of the above natural rubber filler: The formula of the vulcanized rubber is as follows: natural rubber 100, sulfur 2.5, accelera...

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Abstract

The present invention relates to natural rubber filler, and is especially process of preparing natural rubber filler with solid waste oil shale. The process includes the following steps: 1. crushing and grinding solid waste oil shale to obtain solid waste oil shale powder; 2. surface modifying the solid waste oil shale powder with surface modifier in the amount of 0.8-3 wt% of the solid waste oil shale powder at 80-200 deg.c for 15-30 min to obtain modified solid waste oil shale powder; and 3. mixing the modified solid waste oil shale powder and anti-ageing agent in the weight ratio of 10-60 to 2-4 to obtain the natural rubber filler product. The anti-ageing agent contains at least one component capable of deactivating heavy metal elements. The present invention has simple preparation process and low cost.

Description

technical field [0001] The invention relates to a method for preparing a natural rubber filler, in particular to a method for preparing a natural rubber filler by using oil shale solid waste. technical background [0002] Oil shale is a rock formed by the simultaneous deposition of fine-grained mineral debris and organic matter decomposed by lower animals and plant residues. It consists of two parts: organic matter and inorganic minerals. The composition of inorganic minerals includes a variety of minerals, the most common of which are quartz, clay minerals, carbonates, sulfates, sulfides, iron hydroxide and table salt. The exploitation of oil shale for many years has formed a large amount of oil shale solid waste, and the stacking of these solid waste occupies a large amount of land. Moreover, the oil shale solid waste contains a large amount of toxic or potentially toxic substances, such as heavy metal elements, trace radioactive elements, carcinogens, etc., which serious...

Claims

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Application Information

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IPC IPC(8): C08K11/00C08L7/00C08K9/06
Inventor 胡珊严春杰陈洁渝蒋鹏王焰新祁士华
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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