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Selenium-containing rubber material for tire and preparation method of material

A technology for rubber materials and tires, applied in the field of selenium-containing rubber materials for tires and their preparation, can solve problems such as irreparable losses, and achieve the effect of good thermal stability

Inactive Publication Date: 2016-11-09
SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some new cross-links are formed, it cannot make up for the loss caused by the above changes.

Method used

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  • Selenium-containing rubber material for tire and preparation method of material
  • Selenium-containing rubber material for tire and preparation method of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) In parts by mass, weigh raw materials: 100 parts of natural rubber NR, 3 parts of crosslinking agent, 1 part of accelerator CZ (N-cyclohexyl-2-benzothiazyl sulfenamide), 5 parts of active zinc oxide , 1 part of antioxidant 4010 (N-cyclohexyl-N'-phenyl-p-phenylenediamine), 30 parts of white carbon black, 10 parts of liquid coumarone, 1 part of titanate; the crosslinking agent is sulfur powder (95% by mass content of sulfur) and selenium powder (95% by mass content of selenium, directly purchased in the market, 100 orders) are mixed in a mass ratio of 1:0.25;

[0034] (2) Mixing: Add the materials weighed in step (1) into the internal mixer in order for mixing, the roller temperature is 50°C, and the feeding sequence is as follows: figure 1 As shown, the details are: natural rubber, active zinc oxide, accelerator CZ, anti-aging agent 4010, white carbon black, liquid coumarone, titanate, selenium powder, sulfur powder, thin through-out sheet, packed in a triangular bag...

Embodiment 2

[0036] (1) In parts by mass, weigh raw materials: 100 parts of natural rubber NR, 2 parts of crosslinking agent, 1 part of accelerator CZ (N-cyclohexyl-2-benzothiazyl sulfenamide), 5 parts of active zinc oxide , 1.5 parts of antioxidant 4010 (N-cyclohexyl-N'-phenyl-p-phenylenediamine), 35 parts of white carbon black, 8 parts of liquid coumarone; the cross-linking agent is sulfur powder (sulfur mass content 95% ) and selenium powder (selenium mass content 95%, direct purchase in the market, 100 orders) is mixed in a mass ratio of 1:1;

[0037] (2) Mixing: Add the materials weighed in step (1) into the internal mixer in order for mixing, the roller temperature is 50°C, and the order of addition is: natural rubber, active zinc oxide, accelerator CZ, anti-aging agent 4010, white Carbon black, liquid coumarone, selenium powder, sulfur powder, thin slices, packed into triangular bags, and sliced ​​to obtain selenium-containing rubber materials.

Embodiment 3

[0039] The difference between this example and Example 1 is that the crosslinking agent does not contain sulfur powder, all of it is selenium powder, and the prepared selenium-containing rubber material is recorded as Se (selenium powder). The heat aging performance test is shown in Table 1.

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Abstract

The invention belongs to the field of rubber materials, and particularly relates to a selenium-containing rubber material for a tire and a preparation method of the material. The preparation method includes the steps: weighing raw materials according to a ratio and adding the weighed materials into an internal mixer for mixing in the following sequence: matrix rubber, a vulcanizing activator, a vulcanizing accelerator, an anti-aging agent, a filling reinforcing agent, a softening plasticizer, a compounding agent and a cross-linking agent; performing thin-passing, discharging, triangular packing and sheeting to obtain the selenium-containing rubber material. The cross-linking agent is selenium powder or mixture of sulfur powder and selenium powder. Sulfur is partially or totally replaced by selenium con-generic with the sulfur, the prepared novel rubber material is applied to the tire, good in heat stability and free from heat aging, generated cross-linking bonds exactly make up cross-linking bond loss caused by reduction, and the novel rubber material for the tire is excellent.

Description

technical field [0001] The invention belongs to the field of rubber materials, and in particular relates to a selenium-containing rubber material used for tires and a preparation method thereof. Background technique [0002] Raw rubber is the main material for the manufacture of rubber products. Rubber products are widely used. Different rubber products have different application occasions, and the raw rubber used is also different. For example, natural rubber is often used in automobile tires and other places that require high physical and mechanical properties due to its good comprehensive physical and mechanical properties. However, since there are many double bonds in natural rubber (that is, high degree of unsaturation), it is easy to interact with oxygen in the air (that is, aging) to cause performance degradation and affect the service life. It is often used together with styrene-butadiene and butadiene rubber to improve performance. , to reduce costs; if rubber prod...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08L23/22C08L9/00C08L45/02C08K13/02C08K3/06C08K3/02C08K3/36C08K5/18B60C1/00
CPCC08L7/00B60C1/00C08K2201/003C08L2201/08C08L45/02C08K13/02C08K3/06C08K3/02C08K3/36C08K5/18
Inventor 朱立新石川郭宝春
Owner SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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