Unlock instant, AI-driven research and patent intelligence for your innovation.

Desulfurization formula for regenerated rubber production

A technology of reclaimed rubber and formulation, applied in plastic recycling, recycling technology and other directions, can solve the problem of reclaimed rubber tensile strength, low elongation at break, poor mixing processing performance and demoulding performance, no elasticity, etc. problem, to achieve the effect of excellent appearance, improved process performance and mold release performance, and high elongation at break

Inactive Publication Date: 2014-11-26
柳州红日橡胶有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the production process of reclaimed rubber is roughly divided into three sections: crushing, desulfurization, and refining. The so-called "desulfurization" does not completely separate the sulfur atoms combined in the vulcanized rubber from the rubber molecules, but to process the waste rubber through chemical and physical processes. After processing, the elastic vulcanizate is partially depolymerized, the molecular network structure is destroyed, it becomes non-elastic and restores its plasticity and magnetic properties, and the vulcanized rubber can be regained. Desulfurization is a process in the production of reclaimed rubber. An important link is a key process that affects the quality of reclaimed rubber products. The desulfurization formula is the key to desulfurization. The desulfurization formula is a key technology related to the desulfurization effect of reclaimed rubber and the difficulty of post-processing. Powder, softener and activator, this formula is poor in improving the performance of mixing process and release performance, and the tensile strength and elongation at break of the produced reclaimed rubber are also low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: The desulfurization formula used in the production of reclaimed rubber of the present invention consists of the following parts by weight: 120 parts of rubber powder, 0.8 parts of activator, 1.0 part of stearic acid, 2.0 parts of coumarone, and 10 parts of coal tar.

[0014] The following are the performance test results:

[0015] Serial number Test items Testing equipment Test results 1 Shore hardness Rubber Shore Hardness Tester XJ-1 65±5 2 Tensile strength (MPa) Universal testing machine9.5 3 Elongation at break(%) Universal testing machine360

Embodiment 2

[0016] Example 2: The desulfurization formula used in the production of reclaimed rubber of the present invention consists of the following parts by weight: 130 parts of rubber powder, 0.5 parts of activator, 0.8 parts of stearic acid, 3.0 parts of coumarone, and 15 parts of coal tar.

[0017] The following are the performance test results:

[0018] Serial number Test items Testing equipment Test results 1 Shore hardness Rubber Shore Hardness Tester XJ-1 62±5 2 Tensile strength (MPa) Universal testing machine10.2 3 Elongation at break(%) Universal testing machine356

Embodiment 3

[0019] Example 3: The desulfurization formula used in the production of reclaimed rubber of the present invention consists of the following parts by weight: 150 parts of rubber powder, 1.0 part of activator, 0.5 part of stearic acid, 1.5 part of coumarone, and 13 parts of coal tar.

[0020] The following are the performance test results:

[0021] Serial number Test items Testing equipment Test results 1 Shore hardness Rubber Shore Hardness Tester XJ-1 63±5 2 Tensile strength (MPa) Universal testing machine8.0 3 Elongation at break(%) Universal testing machine358

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a desulfurization formula for regenerated rubber production, which is characterized by comprising the following components in parts by weight: 120-150 parts of rubber powder, 0.5-1.0 part of activator, 0.5-1.0 part of stearic acid, 1.5-3.0 parts of coumarone and 10-15 parts of coal tar. The formula can well enhance the compounding processibility and demoldability, and the produced regenerated rubber has higher tensile strength and higher elongation at break.

Description

Technical field [0001] The invention relates to the technical field of reclaimed rubber production, in particular to a desulfurization formula for reclaimed rubber production. Background technique [0002] Reclaimed rubber is processed from the vulcanized corner waste in the production of rubber products as raw materials, has a certain degree of plasticity, and can be reused. The production of reclaimed rubber is one of the ways to use waste rubber. The waste rubber used has reached the total 80% of the utilization. With the development of the rubber industry and other industries, reclaimed rubber is not only widely used in tires, hoses, conveyor belts, bicycle tires, rubber sheets, but also in some non-rubber industries, such as linoleum for construction materials. , Coils, sealants and other fields are also widely used. [0003] At present, the production process of reclaimed rubber is roughly divided into three sections: crushing, desulfurization, and refining. The so-called "d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08J11/10C08L17/00
CPCY02W30/62
Inventor 陈宇钢
Owner 柳州红日橡胶有限公司