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A kind of thermally conductive polybutylene succinate ionomer and its preparation method and application

A technology of polybutylene succinate and ionomer, which is applied in the field of thermally conductive polybutylene succinate ionomer and its preparation, can solve the problems of low viscosity and melt strength, reduced mechanical properties of materials, Restricted applications and other issues, to achieve high melt viscosity and strength, good processing performance, high thermal conductivity

Active Publication Date: 2020-09-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are problems with this method. First, the cost of heat-conducting insulating particles is relatively expensive, which increases the cost of heat-conducting polymers. Secondly, when the amount of heat-conducting particles is high, the heat-conducting network can be established inside the polymer, and the heat-conducting performance can be obvious. improved, and the mechanical properties of the material will be reduced
However, due to the non-polar ester bonds and methylene structural units of the main chain of the PBS molecule, the intermolecular force and the entanglement between the molecular chains are low, and at the same time, it has the disadvantages of low viscosity and melt strength of the material, which limits its application in the market. Applications in fields such as fully biodegradable foams and films

Method used

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  • A kind of thermally conductive polybutylene succinate ionomer and its preparation method and application
  • A kind of thermally conductive polybutylene succinate ionomer and its preparation method and application
  • A kind of thermally conductive polybutylene succinate ionomer and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Before esterification, pour dry nitrogen into the flask and replace the air in the flask. Repeat 5 times to remove the air in the flask. The system is under the protection of nitrogen. The succinic acid (SA, 1 mole part) and succinic acid Alcohol (BD, 1.2 mole parts) was mixed, and then the system was heated to 180°C under stirring, and the temperature was maintained to react until the collected by-product water was close to the theoretical value, and 1000 ppm of titanic acid relative to the total mass of succinic acid and butanediol was added. Tetrabutyl ester was used as a catalyst, the reaction temperature was increased to 210°C under vacuum, and reacted for 1.5h to obtain polybutylene succinate prepolymer. Then the reaction temperature was lowered to 140°C, and the polybutylene succinate was added. Diethanolamine hydrochloride with a glycol ester prepolymer mass of 0.01 is used as an ionic monomer, vacuumed for 2h, and nitrogen is passed and a chain extender (chain ex...

Embodiment 2

[0049] Before esterification, pour dry nitrogen into the flask and replace the air in the flask. Repeat 5 times to remove the air in the flask. The system is under the protection of nitrogen. The succinic acid (SA, 1 mole part) and succinic acid Alcohol (BD, 1.2 mole parts) was mixed, and then the system was heated to 180°C under stirring, and the temperature was maintained to react until the collected by-product water was close to the theoretical value, and 1000 ppm of titanic acid relative to the total mass of succinic acid and butanediol was added. Tetrabutyl ester was used as a catalyst, the reaction temperature was increased to 210°C under vacuum, and reacted for 1.5h to obtain polybutylene succinate prepolymer. Then the reaction temperature was lowered to 140°C, and the polybutylene succinate was added. Diethanolamine hydrochloride with a glycol ester prepolymer mass of 0.03 was used as an ionic monomer. The reaction was carried out under vacuum for 2 hours. Nitrogen gas w...

Embodiment 3

[0051] Before esterification, pour dry nitrogen into the flask and replace the air in the flask. Repeat 5 times to remove the air in the flask. The system is under the protection of nitrogen. The succinic acid (SA, 1 mole part) and succinic acid Alcohol (BD, 1.2 mole parts) was mixed, and then the system was heated to 180°C under stirring, and the temperature was maintained to react until the collected by-product water was close to the theoretical value, and 1000 ppm of titanic acid relative to the total mass of succinic acid and butanediol was added. Tetrabutyl ester was used as a catalyst, the reaction temperature was increased to 210°C under vacuum, and reacted for 1.5h to obtain polybutylene succinate prepolymer. Then the reaction temperature was lowered to 140°C, and the polybutylene succinate was added. Diethanolamine hydrochloride with a glycol ester prepolymer mass of 0.05 was used as an ionic monomer. The reaction was carried out under vacuum for 2 hours. Nitrogen gas w...

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Abstract

The invention belongs to the technical field of polymer materials, and discloses a thermally-conductive polybutylene succinate ionomer and a preparation method and application thereof. The preparationmethod comprises the following steps that under an inert atmosphere, succinic acid and butanediol are mixed, stirred and heated for a reaction, a catalyst is added, during vacuuming, the temperatureis increased to 200-220 DEG C for a reaction of 0.5-2.5 hours, and a polybutylene succinate prepolymer is obtained; then the temperature is decreased to 135-155 DEG C, an ionic monomer is added, and vacuuming is conducted for a reaction of 1.5-3.5 hours; finally, nitrogen is introduced, a chain extender is added for a reaction, and after the reaction is completed, cooling is conducted to room temperature to obtain the thermally-conductive polybutylene succinate ionomer. The thermally-conductive polybutylene succinate ionomer is subjected to hot pressing treatment to prepare a sheet-shaped sample strip, then stretching treatment is conducted, and the anisotropic thermally-conductive polybutylene succinate ionomer is prepared.

Description

Technical field [0001] The invention belongs to the technical field of polymer materials, and particularly relates to a thermally conductive polybutylene succinate ionomer and a preparation method and application thereof. Background technique [0002] Due to its diverse functions, light weight, low cost, and good chemical stability, polymers are widely used in many industrial fields such as structural materials and electronic products. However, the low thermal conductivity of polymers limits their application in certain fields. Due to the limited thermal conductivity, the low thermal conductivity of polymers is one of the main technical obstacles to polymer-based flexible electronic products. Common synthetic polymers, including polyethylene terephthalate (PET), low density polyethylene (LD-PE), polypropylene, and polymethyl methacrylate (PMMA), have a thermal conductivity of generally 0.1 -0.3W / (m·k) range. Improve the thermal conductivity of polymers through physical or chem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/73C08G18/66C08G18/42C08G18/32B29C55/02
CPCB29C55/02C08G18/0814C08G18/3275C08G18/4238C08G18/6655C08G18/73
Inventor 张水洞徐跃茹科
Owner SOUTH CHINA UNIV OF TECH
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