Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for characterizing dispersity of insoluble sulfur in rubber composition

A rubber composition and dispersive technology, applied in the direction of analyzing materials, instruments, etc., can solve the problems of heavy workload, time-consuming, not representative of individuals, etc., and achieve the effect of short test cycle

Inactive Publication Date: 2015-12-09
SHANDONG LINGLONG TIRE
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it is labor-intensive, time-consuming, and cannot represent the differences between individuals

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
  • Method for characterizing dispersity of insoluble sulfur in rubber composition
  • Method for characterizing dispersity of insoluble sulfur in rubber composition
  • Method for characterizing dispersity of insoluble sulfur in rubber composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) Analyze the size of the insoluble sulfur particle raw material:

[0030] Three samples of IS raw materials from different manufacturers were selected, which are respectively referred to as sample 1, sample 2 and sample 3 in the present invention. For the samples from each manufacturer, select an insoluble sulfur sample group composed of multiple samples, without any treatment, and directly observe with SEM. Among them, the model of sample 1 is CrystexHDOT20, the model of sample 2 is HDOT20, and the model of sample 3 is HDOT20.

[0031] IS raw material SEM sample pretreatment: the sample is evenly distributed on the conductive adhesive, and the surface cannot be squeezed or otherwise damaged by tools such as tweezers. blown away.

[0032] Make SEM samples from IS raw materials: disperse a certain amount of insoluble sulfur particles on the conductive adhesive, fix the conductive adhesive on the sample holder, and observe the size and shape of the sample with SEM.

...

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 a method for characterizing the dispersity of insoluble sulfur in a rubber composition. The method comprises the following steps that 1, the size of insoluble sulfur particle raw materials is analyzed, wherein the size of an insoluble sulfur sample group is analyzed by adopting an SEM to obtain a formula which the particle size needs to meet and the size classification grade of the insoluble sulfur particle raw materials; 2, the size of insoluble sulfur particles in the rubber composition is analyzed, wherein the rubber composition containing insoluble sulfur in the step 1 is prepared, and the size of the insoluble sulfur particles in the rubber composition is analyzed by adopting the SEM to obtain the result that the size of the insoluble sulfur particle raw materials is in accordance with that of the insoluble sulfur particles in the rubber composition; 3, the dispersity of the insoluble sulfur in the rubber composition can be determined according to the size of the insoluble sulfur particle raw materials. According to the method, the raw materials are directly analyzed, the test period is short, multiple sets of sample analysis can be simultaneously performed, and not only can the data statistics and analysis be achieved, but also the differences among individuals can be observed.

Description

technical field [0001] The present invention relates to a method for characterizing the dispersibility of insoluble sulfur in rubber compositions. Background technique [0002] Insoluble sulfur (IS) is a non-blooming vulcanizing agent for unsaturated elastomers. It is widely used as a vulcanizing agent for radial tires. The dispersion of IS directly affects the quality of rubber compounds and tires. [0003] At present, most of the characterization of IS dispersion adopts rheometer curve superposition method, observation method and density method to characterize its dispersion in rubber. For example, the rheometer superposition method belongs to the category of statistical analysis, and it is the conclusion obtained from a large number of experimental tests. The conclusion is only valid for the whole, and there are many influencing factors, but not necessarily valid for the individual. The disadvantage of this method is that it is labor-intensive, time-consuming, and does n...

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
IPC IPC(8): G01N15/00
Inventor 王锋张丽丽刘自光丛守清花曙太罗洪罡
Owner SHANDONG LINGLONG TIRE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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