Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of tetramethylammonium hydroxide catalytic thermoplastic material and preparation method thereof

A technology of tetramethylammonium hydroxide and thermoplastic materials, applied in the field of thermoplastic materials, can solve the problems of slow reaction and affecting the quality of thermoplastic elastic materials, etc., and achieve the effects of fast reaction speed, improved toughness and strength, and sufficient reaction

Active Publication Date: 2022-07-22
CANGZHOU SUNHEAT CHEM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the polarized modification method of thermoplastic elastic materials is mainly through organic acid and H 2 o 2 An in-situ reaction occurs to generate a peroxidized organic acid, which then causes the thermoplastic elastomer solution to undergo an epoxidation reaction with the peroxidized organic acid, thereby introducing an epoxy group into the molecular chain of the thermoplastic elastomer. The introduction of the epoxy group significantly improves the thermoplasticity. The polarity of elastic materials can also improve the mechanical properties of thermoplastic elastic materials, and make thermoplastic elastic materials have new reactivity and expand their application fields. However, since the reaction is carried out in a two-phase system of aqueous phase and organic phase, There is a disadvantage of relatively slow reaction, and it is accompanied by various by-products, which affect the quality of the final thermoplastic elastic material

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 tetramethylammonium hydroxide catalytic thermoplastic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0029] 80 parts by weight of a solution with a content of 15 wt% of styrene-butadiene-styrene block copolymer, add 6 parts by weight of formic acid and 0.5 part by weight of tetramethylammonium hydroxide; stir at room temperature for 10-30 minutes , until fully mixed; add H 2 O 2 8 parts by weight of the solution and an appropriate amount of deionized water, H 2 O 2 The concentration of the solution is 35vol%, then the solution is heated to 50 degrees Celsius, and the epoxidation reaction is carried out for 3.5 hours; use a saturated aqueous solution of sodium bicarbonate or Na 2 S2 O 4 Saturated aqueous solution, rinse the reaction product until it reaches neutrality; and extract the organic layer from the reaction product using a separatory funnel, and volatilize and remove the solvent under vacuum conditions to obtain epoxidized modified styrene-butadiene-benzene Ethylene block copolymer as final product.

Embodiment II

[0031] 90 parts by weight of a solution with a content of 20 wt% of styrene-butadiene-styrene block copolymer, add 8 parts by weight of formic acid and 0.8 parts by weight of tetramethylammonium hydroxide; stir at room temperature for 10-30 minutes , until fully mixed; add H 2 O 2 10 parts by weight of the solution and an appropriate amount of deionized water, H 2 O 2 The concentration of the solution is 40vol%, then the solution is heated to 60 degrees Celsius, and the epoxidation reaction is carried out for 6 hours; use a saturated aqueous solution of sodium bicarbonate or Na 2 S 2 O 4 Saturated aqueous solution, rinse the reaction product until it reaches neutrality; and extract the organic layer from the reaction product using a separatory funnel, and volatilize and remove the solvent under vacuum conditions to obtain epoxidized modified styrene-butadiene-benzene Ethylene block copolymer as final product.

Embodiment III

[0033] Add 8 parts by weight of formic acid and 1 part by weight of tetramethylammonium hydroxide to 100 parts by weight of a solution with a content of 25% by weight of styrene-butadiene-styrene block copolymer; stir at room temperature for 10-30 minutes , until fully mixed; add H 2 O 2 10 parts by weight of the solution and an appropriate amount of deionized water, H 2 O 2 The concentration of the solution is 40vol%, then the solution is heated to 75 degrees Celsius, and the epoxidation reaction is carried out for 6 hours; use a saturated aqueous solution of sodium bicarbonate or Na 2 S 2 O 4 Saturated aqueous solution, rinse the reaction product until it reaches neutrality; and extract the organic layer from the reaction product using a separatory funnel, and volatilize and remove the solvent under vacuum conditions to obtain epoxidized modified styrene-butadiene-benzene Ethylene block copolymer as final product.

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 present application provides a tetramethylammonium hydroxide catalytic thermoplastic material and a preparation method thereof. The present invention is directed to thermoplastic elastic materials, with H 2 O 2 As an epoxidation reagent, tetramethylammonium hydroxide is used as a phase transfer catalyst to catalyze the epoxidation reaction of thermoplastic elastic materials, thereby improving the epoxidation reaction speed and increasing the compatibility of thermoplastic materials with polar materials properties, improve the toughness and strength of thermoplastic materials.

Description

technical field [0001] The present application relates to the technical field of thermoplastic materials, in particular to a tetramethylammonium hydroxide catalytic thermoplastic material and a preparation method thereof. Background technique [0002] Thermoplastic elastic materials have the advantages of high elongation, low temperature resistance, and easy processing, and can be used in waterproof materials, plastic modification, adhesives, LED lighting equipment, etc. [0003] The molecular polarity of thermoplastic elastic materials is small, so the adhesion with polar materials is relatively poor, and the two are incompatible, but in practice, there is a need to use thermoplastic elastic materials with polar materials, so thermoplastic elastic materials are generally required. The material is modified to make it polarized, thereby enhancing its compatibility and adhesion with polar materials. [0004] At present, the polarization modification method of thermoplastic el...

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): C08F8/08C08F297/04
CPCC08F8/08C08F297/04
Inventor 刘颂军孙炜贾成林
Owner CANGZHOU SUNHEAT CHEM