Method for predicting the rubber reinforcing effect of organic-inorganic composite for rubber reinforcement

Patent metadata

Field	Value
Publication number	US-11852647-B2
Application number	US-201816466891-A
Country	US
Kind code	B2
Filing date	Jan 5, 2018
Priority date	Mar 27, 2017
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

The present disclosure relates to a method for predicting a rubber reinforcing effect of an organic-inorganic composite for rubber reinforcement. According to the present disclosure, a method for reliably predicting a rubber reinforcing effect of an organic-inorganic composite for rubber reinforcement by thermogravimetric analysis without mixing with a rubber composition is provided.

First claim

The invention claimed is:

1. A method for predicting a rubber reinforcing effect of an organic-inorganic composite, comprising:
measuring weight change of an organic-inorganic composite as a function of temperature over a temperature range of 30° C. to 500° C. to perform thermogravimetric analysis (TGA); and
determining if the organic-inorganic composite is sufficient for rubber reinforcement based on the following Equation 1 being satisfied:
Da≥ 3.0  [Equation 1]

wherein, in Equation 1,
Da is an area under a derivative thermogravimetric curve over a temperature range of 300° C. to 500° C., wherein the derivative thermogravimetric curve is in units of weight reduction percent of the organic-inorganic composite relative to temperature (%/° C.), and
wherein the derivative thermogravimetric curve is obtained from the thermogravimetric analysis (TGA) of the organic-inorganic composite.

2. The method for predicting a rubber reinforcing effect of the organic-inorganic composite of claim 1 ,
wherein the organic-inorganic composite for rubber reinforcement comprises an inorganic filler and a coupling agent bonded to at least a part of a surface of the inorganic filler.

3. The method for predicting a rubber reinforcing effect of the organic-inorganic composite of claim 2 ,
wherein the inorganic filler is at least one particle selected from the group consisting of silica, crystalline aluminosilicate, amorphous aluminosilicate, kaolin, clay, and aluminum hydrate.

4. The method for predicting a rubber reinforcing effect of the organic-inorganic composite of claim 2 ,
wherein the coupling agent is at least one compound selected from the group consisting of bis(3-triethoxysilylpropyl) tetrasulfide, bis(2-triethoxy silylethyl) tetrasulfide, bis(4-triethoxysilylbutyl) tetrasulfide, bis(3-trimethoxysilylpropyl) tetrasulfide, bis(2-trimethoxy silylethyl) tetrasulfide, bis(4-trimethoxysilylbutyl) tetrasulfide, bis(3-triethoxysilylpropyl) trisulfide, bis(2-triethoxysilylethyl) trisulfide, bis(4-triethoxysilylbutyl) trisulfide, bis(3-trimethoxysilylpropyl) trisulfide, bis(2-trimethoxy silylethyl) trisulfide, bis(4-trimethoxysilylbutyl) trisulfide, bis(3-triethoxysilylpropyl) disulfide, bis(2-triethoxy silylethyl) disulfide, bis(4-triethoxysilylbutyl) disulfide, bis(3-trimethoxysilylpropyl) disulfide, bis(2-trimethoxy silylethyl) disulfide, bis(4-trimethoxysilylbutyl) disulfide, 3-trimethoxysilylpropyl-N,N-dimethylthiocarbamoyltetrasulfide, 3-triethoxysilylpropyl-N,N-dimethylthiocarbamoyltetrasulfide, 2-triethoxysilylethyl-N,N-dimethylthiocarbamoyltetrasulfide, 2-trimethoxysilylethyl-N,N-dimethylthiocarbamoyltetrasulfide, 3-trimethoxysilylpropylbenzothiazolyltetrasulfide, 3-triethoxysilylpropyl benzothiazole tetrasulfide, 3-trimethoxysilylpropyl methacrylate mono sulfide, and 3-trimethoxysilylpropyl methacrylate mono sulfide.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Woo Seok
• Jun Shin Hee
• Lee Ha Na
• Choi Kwon Il
• Oh Myounghwan

Classifications

• G01N5/02 Primary

  by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content {(absorption bulbs B01D53/00)} · CPC title

• C08K3/12

  Hydrides · CPC title

• C08K3/34

  Silicon-containing compounds · CPC title

• C08K3/346

  Clay · CPC title

• C08K3/36

  Silica · CPC title