Vehicle tire rubber composite material

Patent metadata

Field	Value
Publication number	US-11505684-B2
Application number	US-202217666875-A
Country	US
Kind code	B2
Filing date	Feb 8, 2022
Priority date	Feb 8, 2021
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

A vehicle tire rubber composite material, raw materials of the vehicle tire rubber composite material comprise the following components by weight: 30-40 weight distributions of solution-polymerized styrene-butadiene rubber, 35-55 weight distributions of rare earth butadiene rubber, 10-30 weight distributions of phenyl modified natural rubber, 5-14 weight distributions of polyurethane elastomer, 3-9 weight distributions of acetylene carbon black, 2-5 weight distributions of multifunctional abrasion-resistant flame retardant Cu@HNT@MoS 2 -PZE, 3-6 weight distributions of elastic fiber, 1-3 weight distributions of heat stabilizer, 2-3 weight distributions of silane coupling agent, 1-2.5 weight distributions of anti-scorching agent, 1-2.5 weight distributions of turpentine oil, and 4-6 weight distributions of accelerator.

First claim

What is claimed is:

1. A multifunctional flame-retardant vehicle tire rubber composite material, wherein:
raw materials of the multifunctional flame-retardant vehicle tire rubber composite material comprise the following components: solution-polymerized styrene-butadiene rubber, rare earth butadiene rubber, phenyl modified natural rubber, polyurethane elastomer, acetylene carbon black, multifunctional abrasion-resistant flame retardant comprising copper modified halloysite nanotubes coated with polyphosphazenes (PZE) modified MoS 2 elastic fiber, heat stabilizer, silane coupling agent, anti-scorching agent, turpentine oil, and accelerator, wherein a weight ratio of the solution-polymerized styrene-butadiene rubber, the rare earth butadiene rubber, the phenyl modified natural rubber, the polyurethane elastomer, the acetylene carbon black, the multifunctional abrasion-resistant flame retardant comprising the copper modified halloysite nanotubes coated with PZE modified MoS 2 , the elastic fiber, the heat stabilizer, the silane coupling agent, the anti-scorching agent, the turpentine oil, and the accelerator is 30-40: 35-55: 10-30: 5-14: 3-9: 2-5: 3-6: 1-3: 2-3: 1-2.5: 1-2.5:4-6;
raw materials of the phenyl modified natural rubber comprise N-bromosuccinimide, natural rubber, methylene dichloride, methanol, tetrahydrofuran, potassium hydroxide, phenylboronic acid, and palladium catalyst; and
raw materials of the multifunctional abrasion-resistant flame retardant comprising the copper modified halloysite nanotubes coated with PZE modified MoS 2 comprise halloysite nanotubes, CuSO 4 ·5H 2 O, Na 3 C 6 H 5 O 7 ·2H 2 O, hydrazine hydrate, Na 2 MoO 4 ·2H 2 O, L-cysteine, eugenol, anhydrous potassium carbonate, and phosphonitrilic chloride trimer.

2. The vehicle tire rubber composite material according to claim 1 , wherein:
a method for preparing the phenyl modified natural rubber comprises the following steps:
(1) dissolving the natural rubber in the methylene dichloride, stirring for 1-3 hours under a nitrogen atmosphere at 29-31° C., then adding the N-bromosuccinimide, continually stirring at 29-31° C. for 2-4 hours, then adding the methanol to coagulate a first product, and drying under pressure less than 1 atm (atmospheric pressure) to obtain a brominated natural rubber; and
(2) dissolving the brominated natural rubber in the tetrahydrofuran, stirring for 1-3 hours under a nitrogen atmosphere at room temperature, then adding the phenylboronic acid or p-tolylboronic acid and adding an aqueous solution of the potassium hydroxide and the palladium catalyst, refluxing and reacting for 5-10 hours, adding the methanol to coagulate a second product, and then drying under pressure less than 1 atm to obtain the phenyl modified natural rubber.

3. The vehicle tire rubber composite material according to claim 2 , wherein a mass ratio of the natural rubber, the methylene dichloride, and the N-bromosuccinimide in the step (1) is 1-5: 95-100: 2-6.

4. The vehicle tire rubber composite material according to claim 2 , wherein a mass ratio of the brominated natural rubber, the tetrahydrofuran, the phenylboronic acid or the p-tolylboronic acid, the potassium hydroxide, and the palladium catalyst in the step (2) is 1-4: 95-100: 0.1-0.5: 6-10: 0.006-0.01.

5. The vehicle tire rubber composite material according to claim 1 , wherein:
a method for preparing the multifunctional abrasion-resistant flame retardant comprising the copper modified halloysite nanotubes coated with PZE modified MoS 2 comprises the following steps:
(1) dissolving the halloysite nanotubes and the CuSO 4 ·5H 2 O in a mixed solvent consisting of ethanol and water with a volume ratio of 20-40:2-10, then slowly dripping Na 3 C 6 H 5 O 7 ·2H 2 O aqueous solution to obtain a solution, continually sonicating for 2-3 hours, then adding the hydrazine hydrate, reducing at 75-85° C. for 1-2 hours, centrifuging, washing, and drying to obtain copper modified halloysite nanotubes;
(2) sonicating to disperse the copper modified halloysite nanotubes and the Na 2 MoO 4 ·2H 2 O in distilled water, then adding the L-cysteine while stirring, then reacting at 180-200° C. for 36-48 hours, centrifuging, washing, and drying to obtain copper modified halloysite nanotubes coated with MoS 2 ; and
(3) adding the copper modified halloysite nanotubes coated with MoS 2 and the eugenol into dried acetonitrile solvent, adding the anhydrous potassium carbonate, stirring, then slowly dripping an acetonitrile solution of the phosphonitrilic chloride trimer under nitrogen atmosphere, and reacting at 80-85° C. for 36-72 hours to obtain the multifunctional abrasion-resistant flame retardant comprising the copper modified halloysite nanotubes coated with PZE modified MoS 2 .

6. The vehicle tire rubber composite material according to claim 5 , wherein a ratio of the halloysite nanotubes, the CuSO 4 ·5H 2 O, the Na 3 C 6 H 5 O 7 ·2H 2 O, and the hydrazine hydrate in the step (1) is 60 mg-120 mg: 10 mg-30 mg: 70 mg-100 mg: 2 mL-4 mL.

7. The vehicle tire rubber composite material according to claim 5 , wherein a mass ratio of the copper modified halloysite nanotubes, the Na 2 MoO 4 ·2H 2 O, and the L-cysteine in the step (2) is 0.1-0.3: 0.5-0.9: 2-4.

8. The vehicle tire rubber composite material according to claim 5 , wherein a mass ratio of the copper modified halloysite nanotubes coated with MoS 2 , the eugenol, and the anhydrous potassium carbonate in the step (3) is 1-3: 3-5: 2-5.

9. The vehicle tire rubber composite material according to claim 1 , wherein the elastic fiber is at least one of elastic polyethylene fiber, silk, or polyurethane fiber.

10. A vehicle tire, wherein the vehicle tire is made of raw materials comprising the vehicle tire rubber composite material according to claim 1 .

Assignees

• Univ Xiamen
• Cheng Shin Tire Xiamen Co Ltd

Inventors

• Dai Lizong
• Hong Jing
• Cao Hesheng
• Chen Guorong
• Luo Weiang
• Yuan Conghui
• Zeng Birong
• Xu Yiting

Classifications

• B60C1/00

  Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition · CPC title

• C08L9/00 Primary

  Compositions of homopolymers or copolymers of conjugated diene hydrocarbons · CPC title

• C08L2205/035

  containing four or more polymers in a blend · CPC title

• C08L2205/16

  Fibres; Fibrils · CPC title

• C08L7/00

  Compositions of natural rubber · CPC title