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Reinforcing filler functional additive, and application thereof in silica-filled SSBR compound

A technology of functional additives and reinforcing fillers, applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve problems such as affecting the coupling agent and rubber bonding, high Mooney viscosity of mixed rubber, and easy rebound of Mooney viscosity, etc. Achieve the effect of improving dispersion, balancing wet skid resistance and rolling resistance, and reducing Mooney viscosity

Active Publication Date: 2019-04-30
RACHEM CHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are a large number of silanol groups on the surface of silica, which are highly polar, easy to aggregate and agglomerate, and have poor dispersion in the rubber compound, making it difficult to process the rubber compound.
Although the modification with coupling agent can greatly improve the dispersion of silica in the rubber compound, there are still some problems, such as some groups on the surface of silica will affect the combination of coupling agent and rubber, The rubber needs to be mixed in multiple stages, the energy consumption of mixing is high, and the Mooney viscosity is easy to rebound during parking, etc.
At the same time, because silica is difficult to disperse in the mixed rubber, the Mooney viscosity of the mixed rubber is higher, which prolongs the mixing time, resulting in low production efficiency and increased production costs.

Method used

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  • Reinforcing filler functional additive, and application thereof in silica-filled SSBR compound
  • Reinforcing filler functional additive, and application thereof in silica-filled SSBR compound
  • Reinforcing filler functional additive, and application thereof in silica-filled SSBR compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Put 20 parts by mass of octadecylamine into the reactor, heat up to complete melting, then slowly add the above-mentioned substances to 30 parts by mass of white carbon black 175GR at the same temperature, stir quickly, and then continue to add 8 parts by mass of zinc oxide and 42 parts by mass Parts of glycerin and continue to stir until the powder state, namely the reinforcing filler functional additive 1#.

Embodiment 2

[0060] Put 28 parts by mass of octadecylamine, 60 parts by mass of glycerol stearate and 12 parts by mass of zinc oxide into the reaction vessel, heat up and stir until completely melted, then pour out and cool to make tablets or melt granulate to obtain the reinforcing filler Functional additive 2#.

Embodiment 3

[0062] Put 22 parts by mass of oleic acid into the reaction vessel 1, heat up to 65°C, then put 3.3 parts by mass of zinc oxide into the reaction vessel, heat up to 125°C, and continue to drop 0.5 parts by mass of H 2 0, followed by vacuuming for about 10min, cooling to about 100°C for later use, then putting 7.98 parts by mass of glycerin, 7.02 parts by mass of zinc oxide and 0.2% salicylic acid into the reaction vessel 2, heating up to 200°C for 2.5h, centrifuging Wash and cool down, then add the sample prepared by reaction vessel 2, 23 parts by mass of octadecylamine, 26 parts by mass of stearyl alcohol and 10 parts by mass of glycerol stearate into reactor 1 and stir until completely melted, then pour out Cooling and tableting or melt granulation, the functional additive 3# for reinforcing filler is obtained.

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Abstract

The invention discloses a reinforcing filler functional additive and a preparation method thereof. The functional additive comprises a fatty acid organic substance, a metal oxide, a fatty acid ester organic substance, an organic alcohol organic substance, an organic amine organic substance, a fatty acid soap salt, a metal soap salt and silica. The reinforcing filler functional additive is appliedto a silica-filled SSBR compound to effectively improve the dispersion of silica in the SSBR, reduce the Mooney viscosity of the rubber compound and improve the Mooney viscosity stability of the rubber compound, so the dynamic balance uniformity of a tire product is improved, the dynamic heat generation performance of the rubber compound is improved, the wear resistance of the rubber compound is improved, the slippery resistance and the rolling resistance of a tire tread are balanced, the processing safety performance, physical mechanical performances and the heat aging resistance of the rubber compound are improved, and the vulcanization speed is increased. The preparation method of the reinforcing filler functional additive has the advantages of simplicity, high efficiency, and low prices and wide sources of raw materials.

Description

technical field [0001] The invention belongs to the technical field of filler-reinforced rubber products, and in particular relates to a functional additive for reinforcing filler and its application in white carbon black-filled SSBR rubber. Background technique [0002] In modern society, with the advancement of science and technology and the improvement of human awareness of environmental protection, green tires have developed rapidly. The preparation of non-toxic, harmless, high-efficiency, energy-saving, and environmentally-friendly new functional additives to improve the comprehensive new functions of silica-filled SSBR compounds has become a research direction for the rubber industry. [0003] Silica is the main raw material of green tires, which has the characteristics of nano-scale structure, large specific surface area and surface polarity, so silica has good tear resistance and super adhesion in SSBR rubber filled products It has a wide range of applications in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08K5/17C08K3/36C08K3/22C08K5/053C08K5/05C08K5/103C08K5/09C08K5/13C08L9/06
CPCC08K3/22C08K3/36C08K5/05C08K5/053C08K5/09C08K5/103C08K5/13C08K5/17C08K13/02C08K2003/2296C08L9/06Y02T10/86
Inventor 谢治国范汝良董栋张宁
Owner RACHEM CHINA CO LTD
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