Low-hysteresis antistatic tread rubber material for fuel-efficient tires, and preparation method thereof

A technology for fuel-saving tires and tread rubber, applied in the rubber field, can solve the problems of increased tire cost, high price, and difficulty in practical application.

Active Publication Date: 2014-11-05
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of graphene is very expensive. According to different qualities, the price ranges from 0.5-200,000 yuan / kg. Even a small amount (0.5-3phr) will cause a substantial increase in tire cost. Therefore, graphene-modified tires are still difficult to be practical. change

Method used

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  • Low-hysteresis antistatic tread rubber material for fuel-efficient tires, and preparation method thereof
  • Low-hysteresis antistatic tread rubber material for fuel-efficient tires, and preparation method thereof
  • Low-hysteresis antistatic tread rubber material for fuel-efficient tires, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Example 1: The formula of low-hysteresis antistatic fuel-saving tire tread rubber composite material composition ratio in parts by mass is shown in Table 4.

[0090] Table 4. Formulation of Example 1

[0091]

[0092] The specific mixing process of composite materials:

[0093] Step 1: Add all the rubber, silica, carbon black, silane coupling agent, zinc oxide, and stearic acid into the mixing chamber of the internal mixer for mixing. The mixing temperature should not exceed 120°C. The time is 240 seconds. After debinding, cool to room temperature and stand for 24 hours to obtain a section of masterbatch.

[0094] Step 2: Add a piece of masterbatch obtained in step 1 into the mixing chamber of the internal mixer for mixing. The temperature of the mixing chamber is controlled within the range of 150 to 160°C, and the mixing time is 360 seconds. Parked for 16 hours to obtain the second-stage remix rubber.

[0095] Step 3: Put the two-stage remix rubber, accelerator ...

Embodiment 2

[0096] Example 2: The formula of low hysteresis antistatic fuel-saving tire tread rubber composite material composition ratio in parts by mass is shown in Table 5.

[0097] Table 5. Formulation of Example 2

[0098]

[0099]

[0100] The specific mixing process of composite materials:

[0101] Step 1: Add all the rubber, silica, carbon black, silane coupling agent, zinc oxide, and stearic acid into the mixing chamber of the internal mixer for mixing. The mixing temperature should not exceed 120°C. The time is 240 seconds. After debinding, cool to room temperature and stand for 24 hours to obtain a section of masterbatch.

[0102] Step 2: Put a piece of masterbatch obtained in step 1 into the mixing chamber of the internal mixer for mixing. The temperature of the mixing chamber is controlled within the range of 145 to 160°C, and the mixing time is 400 seconds. Parked for 16 hours to obtain the second-stage remix rubber.

[0103] Step 3: Add the second-stage remix rubbe...

Embodiment 3

[0104] Example 3: The formula of low-hysteresis antistatic fuel-saving tire tread rubber composite material composition ratio in parts by mass is shown in Table 6.

[0105] Table 6. Formulation of Example 3

[0106]

[0107]

[0108] The specific mixing process of composite materials:

[0109]Step 1: Add all the rubber, silica, carbon black, silane coupling agent, zinc oxide, and stearic acid into the mixing chamber of the internal mixer for mixing. The mixing temperature should not exceed 120°C. The time is 240 seconds. After debinding, cool to room temperature and stand for 20 hours to obtain a section of masterbatch. .

[0110] Step 2: Add a piece of masterbatch obtained in step 1 into the mixing chamber of the internal mixer for mixing. The temperature of the mixing chamber is controlled within the range of 145 to 160°C, and the mixing time is 420 seconds. Parked for 16 hours to obtain the second-stage remix rubber.

[0111] Step 3: Add the second-stage remix rub...

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Abstract

The invention relates to a low-hysteresis antistatic tread rubber composite material and a preparation method thereof. According to the rubber composite material, mixed rubber formed by solution polymerization of styrene-butadiene rubber and butadiene rubber is adopted as substrate rubber. Carbon nano-tube bundles, white carbon black, and carbon black enhancing filling materials are added. A silane coupling agent, an anti-aging agent, an accelerator, and a cross-linking agent are added. The mixing of the rubber composite material can be carried out with a multi-stage manner in an open mill or an internal mixer. The rubber composite material provided by the invention has low-dynamic-hysteresis and antistatic characteristics. Under a temperature of 60 DEG C and dynamic strain of 7%, dynamic loss factor tandelta is no higher than 0.14. According to GB/T1410-2006 determination, a volume resistivity is lower than 1*10<9>omega.cm. The mechanical strength and wear resistance of the material are better than or equivalent to those of a regular tire tread rubber material. When the rubber composite material provided by the invention is used for preparing a tire tread, tire rolling resistance can be reduced, and a problem of high white carbon black tire material static electricity accumulation can be solved.

Description

Technical field: [0001] The invention relates to a tread rubber composite material for low-lag antistatic fuel-saving tires and a preparation method thereof, belonging to the technical field of rubber. Background technique: [0002] Due to the high oil price and the pressure of environmental protection, fuel-saving high-performance tires have become the development direction of the world tire industry. [0003] Countries such as Europe, America, Japan and South Korea have launched their own regulations, standards or specifications for fuel-efficient high-performance tires, the most typical of which is the "EU Tire Labeling Law" (EC1222 / 2009) officially implemented by EU countries on November 1, 2012. , requiring that tires sold in the EU must be labeled for fuel economy, safety and noise levels. China also tried out the "Technical Specifications for Green Tires" on March 1, 2014. [0004] 20-30% of a car's fuel consumption is used to overcome the rolling resistance of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L9/00C08K13/04C08K7/24C08K3/36C08K3/04C08K3/22C08K5/09C08K3/06C08K5/548B60C1/00
CPCY02T10/86
Inventor 卢咏来宋洋张立群吴友平刘力田明
Owner BEIJING UNIV OF CHEM TECH
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