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

A kind of rubber accelerator diethyldithiocarbamate sulfone and its preparation method and application

A technology of diethyldithiocarbamate and sodium diethyldithiocarbamate, applied in organic chemistry and other directions, can solve the problems of waste water polluting the environment and not conforming to the concept of green chemistry.

Active Publication Date: 2022-05-24
SOUTH CHINA UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of the above two processes will produce waste water to pollute the environment, and the synthesis process of tetraethylthiuram disulfide may use oxidants such as toxic gas chlorine or carcinogenic sodium nitrite, which does not conform to the concept of green chemistry

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 rubber accelerator diethyldithiocarbamate sulfone and its preparation method and application
  • A kind of rubber accelerator diethyldithiocarbamate sulfone and its preparation method and application
  • A kind of rubber accelerator diethyldithiocarbamate sulfone and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 11.25g sodium diethyldithiocarbamate (0.05mol) was dispersed in 150ml cyclohexane under stirring at 300rpm, and then 3.04g sulfonyl chloride (0.0225mol) was added dropwise to sodium diethyldithiocarbamate In the cyclohexane dispersion liquid, control the temperature at 0 ℃, and stir for 60min; after the reaction is finished, the rubber accelerator diethyl diethyl diethyl diethyl diethyl diethyl diethyl diacrylate is obtained by suction filtration, washing, drying, pulverization and sieving (mesh 400 mesh). Thiocarbamate sulfone; the yield of the obtained product is 76.4%.

Embodiment 2

[0035] 11.25g of sodium diethyldithiocarbamate (0.05mol) was dispersed in 150ml of petroleum ether under stirring at 300rpm, and then 4.05g of sulfonyl chloride (0.03mol) was added dropwise to the mixture of sodium diethyldithiocarbamate. In the petroleum ether dispersion liquid, the temperature was controlled at 10° C., and stirred for 60 minutes; after the reaction was completed, the rubber accelerator diethyl disulfide was prepared by suction filtration, washing, drying, pulverization, and sieving (mesh 400 mesh). Carbamate sulfone; the yield of the obtained product is 91.0%.

Embodiment 3

[0037] 11.25g of sodium diethyldithiocarbamate (0.05mol) was dispersed in 150ml of hexane under stirring at 300rpm, and 5.06g of sulfonyl chloride (0.0375mol) was added dropwise to the mixture of sodium diethyldithiocarbamate. In the hexane dispersion, the temperature was controlled at 15 ° C, and stirred for 60 min; after the reaction was completed, the rubber accelerator diethyldithiocyanate was prepared by suction filtration, washing, drying, pulverization, and sieving (400 mesh sieves). Carbamate sulfone; the yield of the obtained product is 81.8%.

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

No PUM Login to View More

Abstract

The invention relates to the field of rubber vulcanization accelerators, in particular to a rubber accelerator diethyldithiocarbamate sulfone and its preparation method and application. The method comprises: dispersing sodium diethyldithiocarbamate in an organic solvent with a polarity less than 0.2 under stirring conditions, adding sulfuryl chloride, stirring and reacting to obtain a light yellow solid A; suction filtering the light yellow solid A, The rubber accelerator diethyldithiocarbamate sulfone is obtained by washing, drying, pulverizing and sieving. The preparation method of the invention is environment-friendly, pollution-free, low in cost, and the vulcanization acceleration effect of the prepared accelerator is better than that of dithiocarbamate accelerators and thiuram accelerators of the same side group.

Description

technical field [0001] The invention relates to the field of rubber vulcanization accelerators, in particular to a rubber accelerator diethyldithiocarbamate sulfone and a preparation method and application thereof. Background technique [0002] Vulcanization is the last and most important step in the processing and production of rubber products. In this step, the rubber and the vulcanizing agent undergo a series of cross-linking reactions, so that the rubber forms macromolecules with a three-dimensional spatial network structure from macromolecules of a linear structure, thereby showing the unique high elastic properties of rubber elastomers and Excellent mechanical and other physical and chemical properties. [0003] Rubber vulcanization accelerator is a general term for such substances that can accelerate the vulcanization rate of rubber, shorten the vulcanization time, and reduce the amount of vulcanizing agent in the rubber without reducing the physical and mechanical p...

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): C07C333/30C08K5/41C08L9/06
CPCC07C333/30C08K5/41C08L9/06
Inventor 朱立新颜鹏江涛杨豪杰
Owner SOUTH CHINA UNIV OF TECH
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