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Modified organosilicon material for tire and preparation method thereof

A silicone and modified technology, which is applied in special tires, tire parts, transportation and packaging, etc., to achieve the effect of easy control, simple method and improved mechanical properties

Active Publication Date: 2019-03-05
CHENGDU GUIBAO SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The silicone graft or silicone block copolymer prepared by chemical modification can improve the compatibility of silicone materials and tire rubber, but there is no good compatibility with tire rubber, which can be improved after adding. Silicone materials for tire rubber properties

Method used

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  • Modified organosilicon material for tire and preparation method thereof
  • Modified organosilicon material for tire and preparation method thereof
  • Modified organosilicon material for tire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Under the condition of 25°C, in the reactor, 100g of double-ended aminomethyl vinyl polysiloxane with a degree of polymerization of 20, 100g of double-ended hydroxymethylpolysiloxane with a degree of polymerization of 30 and 120g of double-ended hydroxymethyl polysiloxane with a degree of polymerization of 30 double-terminated hydroxyl polybutadiene was dissolved in a mixed solution of tetrahydrofuran and N,N-dimethylformamide. After raising the temperature to 60°C, a toluene solution of 12 g of benzhydryl-4,4'-diisocyanate was added. After reacting for 2 hours, continue to heat up to 90°C, add 0.2 g of ethylenediamine to continue the reaction for 3 hours, transfer the reactant to ethanol / water solution to precipitate modified silicone material A, wash the polymer, and vacuum at 60°C Dry to constant weight. The product yield of modified silicone material A is 98%, and the weight average molecular weight is 8×10 4 .

[0057] The NMR spectrum of polymer A is shown in t...

Embodiment 2

[0059] At 25°C, first mix 100g of double-ended aminomethylphenyl polysiloxane with a degree of polymerization of 38, 15g of double-ended aminomethylvinyl polysiloxane with a degree of polymerization of 10, 15g of double-ended aminomethylvinylpolysiloxane with a degree of polymerization of 75 The double-terminated hydroxymethyl vinyl polysiloxane and 80 g of the double-ended hydroxy polybutadiene with a degree of polymerization of 58 were dissolved in a mixed solution of dichloromethane and N,N dimethylformamide for use. Prepare a toluene solution of 6 g of benzhydryl-4,4'-diisocyanate, 0.2 g of toluene diisocyanate, and 10 g of 4,4'-cyclohexylmethane diisocyanate for subsequent use. Prepare a mixed solution of 0.2 g of ethylenediamine, 0.3 g of propylene glycol, and 0.1 g of hydroquinone in dichloromethane and tetrahydrofuran for later use.

[0060] Add a certain amount of dichloromethane and N, N dimethylformamide mixed solution into the reactor, drop the above three solution...

Embodiment 3

[0062] At 25°C, first mix 100g of double-ended aminomethyl vinyl polysiloxane with a degree of polymerization of 30, 15g of double-ended aminomethylpolysiloxane with a degree of polymerization of 78, and 15g of double-ended aminomethylpolysiloxane with a degree of polymerization of 10. Aminomethylpolysiloxane, 10g of double-terminal hydroxymethyl vinyl polysiloxane with a degree of polymerization of 15, 50g of polybutadiene with a degree of polymerization of 70, and 15g of double-terminal amino with a degree of polymerization of 60 Polyisoprene was dissolved in a mixed solution of dichloromethane, toluene and N,N dimethylformamide.

[0063] After heating up to 60°C, add 2g of isophorone diisocyanate, 0.2g of toluene diisocyanate, 20g of 4,4'-cyclohexylmethane diisocyanate in toluene, 1g of propylenediamine, 0.2g of o-phenylenediamine in tetrahydrofuran After the solution continued to react for 3 hours, the reactant was transferred to ethanol / water solution to precipitate the m...

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Abstract

The invention discloses a modified organosilicon material for a tyre and a preparation method thereof. The modified organosilicon material is a multiblock copolymer mainly comprising an organosilicon material. Double end functionalized organopolysiloxane, a double end functionalized polymer with a C-C structure main chain and a compound with the general structural formula of OCN-Z-NCO undergo a condensation polymerization reaction in a bulk polymerization system with or without a Y1-E-Y1 compound at a temperature of room temperature to 100 DEG C to produce the modified organosilicon material. The modified organosilicon material for a tyre has good compatibility with rubber for a tyre and can improve tyre rubber sample mechanical properties after use in tyre rubber. The modified organosilicon material for a tyre can improve a tyre white carbon black filling amount and improve tyre sample mechanical properties without a coupling agent.

Description

technical field [0001] Embodiments of the present invention relate to the field of polymer materials, and more specifically, embodiments of the present invention relate to a modified silicone material for tires and a preparation method thereof. Background technique [0002] The automobile industry has become an important support for the national economy, and the number of automobile tires has increased sharply. At present, the tire industry has become one of the industries that consume the most synthetic rubber and natural rubber. As an important high-speed running part of a car, tires consume more than 20% of the vehicle's energy consumption during driving, second only to the engine. At present, the rubber used to prepare tires mainly includes natural rubber, butadiene rubber, and styrene-butadiene rubber. With the increasing depletion of petroleum resources, it is imminent to develop energy-saving tires and develop new materials for tires to reduce the tire industry's dep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/61C08G18/67C08G18/69C08G18/62C08L75/14C08K13/02B60C1/00
Inventor 黄强王崇浩谢利平熊婷周文亮王有治王跃林
Owner CHENGDU GUIBAO SCI & TECH
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