Carbon black masterbatch rubber composition for tires and preparation method thereof

A technology of rubber composition and masterbatch, which is applied in the direction of special tires, tire parts, rolling resistance optimization, etc., and can solve problems such as high heat generation, difficult processing and application, and environmental hazards

Active Publication Date: 2014-03-26
PETROCHINA CO LTD
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because polybutadiene/silica composites are prepared by solution polymerization using n-butyllithium as an initiator, a large amount of organic solvents are used in the preparation process, which is not only harmful to the environment, but also macromolecules It is difficult for the chain to contain and coagulate all the silica particles, and there will be a loss of quality. At the same time, it may also aggregate in the co-coagulation gel matrix, making it difficult to achieve good dispersion
In addition, the PSN prepared by the solution polymerization met

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbon black masterbatch rubber composition for tires and preparation method thereof
  • Carbon black masterbatch rubber composition for tires and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0064] Example 1

[0065] Surface functional modification of nano-silica: Weigh 150g of nano-silica and dry it in an oven for later use, then mix it with 1500g of toluene and ultrasonically disperse it fully. Add 300g of hydrolyzed VTES, stir and heat to 82°C and reflux for 3 hours. Then filter, wash, and vacuum dry.

[0066] Functional emulsion preparation

[0067] In the first step, the monomer pre-emulsion is prepared. 1,3-butadiene 1200g, sodium dodecylbenzene sulfonate 120g, deionized water 1800g, sodium hydroxide 12g, potassium persulfate 2.4g are mixed and pre-emulsified for 20 minutes to prepare a pre-emulsion.

[0068] The second step is to prepare functional emulsion with modified nano-silica as the core. Take 3.6g of surface functionalized modified nano silica and add it to a reactor containing 60g of sodium dodecylbenzene sulfonate and 480g of deionized water, stir and heat to 60℃, and then take 313g of monomer pre-emulsion Add to the reactor, control the temperature of...

Example Embodiment

[0075] Example 2

[0076] According to the method disclosed in "Journal of Radiation Research and Radiation Technology", Volume 25, Issue 5, 2007, "Surface Modification of Nano-Silica and Radiation Initiated Grafting of GMA", the method for preparing surface-functionalized modified nano-silica: Weigh 10 g of nano-silica and dry it in an oven at 50°C for 5 hours, add the dried nano-silica into an aqueous solution containing 98 g of coupling agent MPS, and ultrasonically disperse for 1 hour. After dispersion, the mixture was stirred at 110°C for 8 hours. After filtering, the modified silica was washed with toluene, the resulting product was vacuum filtered and then subjected to Soxhlet extraction, and finally placed in an oven for drying.

[0077] Functional emulsion preparation

[0078] In the first step, the monomer pre-emulsion is prepared. 1200 g of isoprene, 72 g of sodium lauryl sulfate, 1200 g of deionized water, 6 g of ammonia, and 9.6 g of ammonium persulfate were mixed and...

Example Embodiment

[0086] Example 3

[0087] Surface functional modification of nano-silica: Weigh 240g of nano-silica and dry it in an oven for later use, then mix it with 4800g of xylene and ultrasonically disperse it fully, add 312g of hydrolyzed VTMS, stir and heat to 93°C and reflux for 4 hours , Then filter, wash, vacuum dry.

[0088] Functional emulsion preparation

[0089] In the first step, the monomer pre-emulsion is prepared. Prepared by mixing 1,3-pentadiene 1200g, sodium dodecylbenzene sulfonate 40g, alkylphenol polyoxyethylene ether 200g, deionized water 1920g, sodium carbonate 9.6g, and sodium persulfate 9.8g for 30 minutes Into a pre-emulsion.

[0090] The second step is to prepare functional emulsion with modified nano-silica as the core. Take 54g of surface-functionalized modified nano silica and add it to the reactor containing 54g of fatty acid soap and 456g of deionized water, stir and raise the temperature to 68°C, then take 676g of monomer pre-emulsion into the reactor, control...

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
Nitrogen adsorption specific surface areaaaaaaaaaaa
Nitrogen adsorption specific surface areaaaaaaaaaaa
Nitrogen adsorption specific surface areaaaaaaaaaaa
Login to view more

Abstract

The invention discloses a carbon black masterbatch rubber composition for tires and a preparation method thereof. The rubber composition contains 100 parts of main rubber and 0.5-3 parts of sulfurizing reagent, wherein the main rubber comprises carbon black masterbatch and diene rubber; the carbon black masterbatch is prepared by the following steps: dispersing carbon black in deionized water to form carbon black slurry, uniformly mixing with nano silicon dioxide/polymerized conjugated dialkene graft modified rubber latex, and condensing; nano silicon dioxide/polymerized conjugated dialkene function compound emulsion contains 0.1-5 parts of surface functional modified nano silicon dioxide based on 100 parts by mass of dry basis; the nano silicon dioxide/polymerized conjugated dialkene function compound emulsion has particle size of 50-80 nanometers, number-average molecular weight of 100000-140000 and molecular weight distribution of 2-3. The rubber composition has good abrasive resistance, good wet slip resistance, and low rolling resistance.

Description

technical field [0001] The present invention relates to a rubber composition, more specifically to a rubber composition containing carbon black masterbatch and used for tire tread. Background technique [0002] With the development of automobiles in the direction of high speed, safety, energy saving and comfort, the requirements for high performance tires are also increasing year by year, which requires tire treads to have good wet skid resistance, excellent wear resistance and low rolling resistance. [0003] Nano-silica, commonly known as white carbon black, is the second largest reinforcing agent used in the rubber industry after carbon black. Since the 1990s, silica has been widely used as a reinforcing filler in tire tread formulations, so that the above-mentioned "devil triangle" performance required by tire treads can be more clearly balanced. [0004] Qiu Quanfang (“Latex Blending Method” Natural Rubber / SiO2 Nanocomposite Microstructure and Performance Control, 201...

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): C08L9/00C08L9/06C08L7/00C08K13/06C08K9/06C08K3/36C08K3/04C08F36/04C08F2/44C08F2/24C08J3/22B60C1/00
CPCY02T10/86
Inventor 赵志超胡育林马朋高郑聚成燕鹏华王永峰邵卫路祥李波李树毅李晶郑红兵陈建刚王锋丛日新占德生秦传高李铁柱
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap