Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rubber composition, and preparation method and application thereof

A rubber composition and natural rubber technology, applied in tire parts, transportation and packaging, special tires, etc., can solve problems such as easy to fall off, cumbersome fixing methods, etc., achieve good foaming effect, good sound absorption effect, and reduce decomposition temperature Effect

Inactive Publication Date: 2019-11-08
GUANGZHOU FENGLI RUBBER TIRE
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a rubber composition and its preparation method and application, which solves the problem that the existing highly foamed material is fixed in the tire cavity by an adhesive, the fixing method is cumbersome, and it is easy to fall off during high temperature and dynamic use

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
  • Rubber composition, and preparation method and application thereof
  • Rubber composition, and preparation method and application thereof
  • Rubber composition, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] This embodiment is the preparation of tire

[0072] By weight: NR: 54kg, BIIR glue 126kg, carbon black 117kg, foaming agent azodicarbonamide 15kg, zinc oxide 5.4kg, stearic acid 3.6kg, oil 12.6kg, resin 4.5kg, thiazole accelerator 2.7kg, sulfur 0.9kg. The above-mentioned composition material is processed by a 2-stage mixing process, and the mixing is carried out in an F370 internal mixer, and the rotor speed is 10-60r / min; after the 2-stage mixing, the tablet is discharged from the mill; Add NR: 54kg, BIIR glue 126kg, carbon black 117kg, stearic acid 3.6kg, oil 12.6kg, resin 4.5kg, debinding temperature 130°C; add zinc oxide 5.4kg, thiazole accelerator 2.7kg, sulfur 0.9kg, the debinding temperature is 105°C. After parking for 4 hours, the thickness of the film is controlled at 3mm, and the width can be adjusted according to the size of the tire. After the calendered film is parked for another 4 hours, the tire blank is formed. When the tire is formed, a layer of film...

Embodiment 2

[0075] This embodiment is the preparation of tire

[0076] By weight: NR: 36kg, BIIR glue 144kg, carbon black 117kg, foaming agent azodicarbonamide 20kg, zinc oxide 5.4kg, stearic acid 5kg, oil 12.6kg, resin 4.5kg, thiazole accelerator 2.7 kg, sulfur 0.9kg. The above-mentioned composition material is processed by a 2-stage mixing process, and the mixing is carried out in an F370 internal mixer, and the rotor speed is 10-60r / min; after the 2-stage mixing, the tablet is discharged from the mill; Add NR: 36kg, BIIR glue 144kg, carbon black 117kg, zinc oxide 5.4kg, stearic acid 5kg, oil 12.6kg, resin 4.5kg, debinding temperature 130°C; add zinc oxide 5.4kg in the second stage, thiazole accelerator 2.7kg, sulfur 0.9kg, debinding temperature is 105°C. After parking for 4 hours, the thickness of the film is controlled at 3mm, and the width can be adjusted according to the size of the tire. After the calendered film is parked for another 4 hours, the tire blank is formed. When the ...

Embodiment 3

[0089] The tires prepared in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 were tested for cavity noise in real vehicles.

[0090] The result is as figure 1 As shown, the corresponding peak value in the frequency range of 200-250 Hz is the cavity noise of the tire. For the tires prepared in Examples 1-2 of the present invention, the peak value generated in the frequency range of 200-250 Hz in the actual vehicle test is obviously lower than that of Comparative Examples 1-2, and the cavity noise is better, which shows that whether the rubber composition of the invention is Canceling the blowing agent or reducing the dosage of active agent can not reach the cavity noise level of the embodiment of the present invention. In addition, by comparing Example 1 and Example 2, it can be found that when the mass ratio of (3-30): (3-8) is adjusted in the amount of foaming agent and raw rubber, the peak value change in the range of 200-250Hz Not much.

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
decomposition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of tires, and particularly relates to a rubber composition, and a preparation method and application thereof. The invention discloses the rubber composition which is prepared from the following components: halogenated butyl rubber, natural rubber, carbon black, a foaming agent, an activating agent and auxiliary agents. The formula of rubber compositionhas high similarity with the formula of a rubber material of the liner layer of a vacuum radial tire, so that the co-vulcanization effect of the rubber composition and the rubber material of the linerlayer of the tire is ensured, the phenomenon that the rubber composition falls off from a tire body is avoided, and a capsule isolating agent is not required to be cleaned. In addition, due to use ofthe foaming agent, the rubber composition has a good foaming effect; and through use of the activating agent, the foaming agent is activated, so that the decomposition temperature of the foaming agent is reduced, and then the rubber composition can be normally foamed in a tire vulcanization temperature range of 160-180 DEG C. When the rubber composition is applied to a tire, the cavity noise of the tire can be low.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a rubber composition and a preparation method and application thereof. Background technique [0002] With the rapid development of the automobile industry, consumers have higher and higher requirements for automobile comfort. Tire noise has always been an important factor affecting the NVH performance of automobiles. With the blowout development of new energy vehicles, reducing tire noise has become the most important issue in current automobile development. [0003] The most important noise affecting passenger comfort is tire cavity noise. The cavity noise frequency of all tires has an obvious single peak or split peak between 200 and 250 Hz. The excitation causes cavity resonance, which is transmitted through the chassis and body parts, causing noise in the car. [0004] Due to the high requirements of OEMs, tire manufacturers are trying various methods to improve cavity noise....

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L7/00C08L91/00C08L101/00C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06C08J9/10B60C1/00
CPCB60C1/0008C08J9/0023C08J9/0061C08J9/0066C08J9/0095C08J9/103C08J2203/04C08J2323/28C08J2400/00C08J2407/00C08J2491/00
Inventor 李键王志远罗吉良
Owner GUANGZHOU FENGLI RUBBER TIRE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com