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

A kind of preparation method and application of modified alkylphenol formaldehyde tackifying resin

A technology of modification of alkyl phenolic resin, applied in the field of phenolic resin, can solve problems such as energy loss, increased fuel consumption, and accelerated aging of rubber materials

Active Publication Date: 2014-10-29
RACHEM CHINA CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For rubber materials, the heat generated by the deformation of rubber during use causes energy loss on the one hand, and accelerates the aging speed of rubber materials on the other hand.
In tires, this heat build-up is correlated with rolling resistance, increasing fuel consumption

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
  • A kind of preparation method and application of modified alkylphenol formaldehyde tackifying resin
  • A kind of preparation method and application of modified alkylphenol formaldehyde tackifying resin
  • A kind of preparation method and application of modified alkylphenol formaldehyde tackifying resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] With 100g commercially available p-tert-butylphenol-formaldehyde resin (204 resin Softening point 145.2 ℃) is added in the mixed solvent of 50mL toluene and 50mL ethanol, be warmed up to 60 ℃; After the resin is completely dissolved, add 15g concentration and be the sodium hydroxide aqueous solution of 30% by weight, start dripping bromobutyl after 15 minutes of reaction Add 15g of alkane, drop it within 30 minutes; keep the reaction at 60°C, add a small amount of dilute hydrochloric acid to neutralize to a pH value of 6-8, add 50mL of toluene to extract after 5h, wash with 100mL of distilled water, and separate the water phase components; collect After the oil phase is composed, the temperature is raised to 180°C and the solvent in the system is distilled off under normal pressure, and then further distilled at a pressure of 2-3kPa for 15 minutes to completely remove the solvent and volatile substances in the resin to obtain the modified alkylphenol-formaldehyde resin....

Embodiment 10

[0035] The preparation of the rubber composition is carried out according to the formula shown in Table 2

[0036]

[0037] The resins prepared according to the examples were evaluated in a mixture of natural rubber (Malaysian Standard Rubber, SMR20) and butadiene rubber (Beijing Yanshan Petrochemical Co., Ltd., BR9000) to evaluate and compare their performance relative to the tackifying resin before modification.

[0038] In the first stage, natural rubber, butadiene rubber, carbon black, oil, zinc oxide and stearic acid were mixed in a Banbury mixer at 150°C to make a rubber masterbatch. Then in the second stage, the modified tackifying resin, anti-aging agent 4020 and TMQ prepared according to the method in the example were mixed into an appropriate amount of rubber masterbatch at about 140°C. At about 100°C, the insoluble sulfur and sulfenamide accelerator NS were added to the third stage open mill mixer and leveled. The test compositions were stored at constant room tem...

Embodiment 11

[0040] In this example, a rubber processing analyzer (RPA2000) by Alpha Technology was used to measure dynamic mechanical properties.

[0041] The RPA2000 is capable of testing uncured and cured rubber with high repeatability and reproducibility. Available tests and subtests include frequency sweep at constant temperature and strain, sulfur change at constant temperature and frequency, strain sweep at constant temperature and frequency, and temperature sweep at constant strain and frequency. The high accuracy of the instrument enables repeated testing of changes in the properties of glue samples. Storage modulus and Tanδ data are measured by strain sweep and frequency sweep of vulcanized rubber samples at 60°C. The test data are listed in Table III.

[0042] Table 3. Properties of materials obtained by testing modified alkylphenolic resins

[0043]

[0044] The above data clearly show that the vulcanizate compound added with the resin of the present invention exhibits go...

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
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a modified alkyl phenolic tackifying resin and a preparation method of the modified alkyl phenolic tackifying resin. The method comprises the following steps of: dissolving alkyl phenolic resin in a solvent, adding a basic catalyst, adding a modifying agent for reaction, neutralizing, extracting and washing by water after reaction, and distilling an organic matter to obtain the modified resin. The modified alkyl phenolic resin provided by the invention is used in a natural rubber and synthetic rubber mixture, so that the good viscosity of the original resin can be kept, and the dynamic property of the rubber can be improved.

Description

technical field [0001] The invention relates to the field of phenolic resins, in particular to a preparation method of a modified alkylphenolic tackifying resin for improving the dynamic performance of rubber materials. Background technique [0002] Alkylphenolic resins have a long history as tackifiers in rubber materials along with the development of synthetic rubber. The use of alkylphenolic resin can effectively improve the self-adhesiveness of synthetic rubber and solve the problem of adhesion between rubber parts, which has been mentioned in many patent documents (CN200880130918.0, CN101511893A). Alkyl phenolic resins, especially tert-butyl and tert-octyl phenolic resins, have been widely used in the production of tires, rubber hoses, conveyor belts, V-belts, shoe soles, sheets and stamping products. [0003] However, with the development of society, the requirements for product environmental protection are gradually increasing. For rubber materials, the heat generat...

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 Patents(China)
IPC IPC(8): C08G8/28C08L9/00C08L7/00C08L61/14
Inventor 张成王文芳关云歌董栋
Owner RACHEM CHINA CO LTD
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