Thermally-conductive polybutylene succinate ionomer and preparation method and application thereof

A polybutylene succinate and ionomer technology, 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 material mechanical properties, Limit application and other issues, to achieve the effect of high melt viscosity and strength, good processing performance, and high thermal conductivity

Active Publication Date: 2019-09-06
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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  • Thermally-conductive polybutylene succinate ionomer and preparation method and application thereof
  • Thermally-conductive polybutylene succinate ionomer and preparation method and application thereof
  • Thermally-conductive polybutylene succinate ionomer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Before the esterification, feed dry nitrogen into the flask, replace the air in the bottle, and repeat 5 times to remove the air in the bottle, and the system is under the protection of nitrogen. Alcohol (BD, 1.2 mole parts) was mixed, and then the system was heated to 180°C under stirring, and the temperature was maintained until the collected by-product water was close to the theoretical value, and then 1000ppm of titanic acid relative to the total mass of succinic acid and butanediol was added Tetrabutyl ester is used as a catalyst, and the reaction temperature is raised to 210°C while vacuuming, and reacted for 1.5h to obtain a polybutylene succinate prepolymer, then the reaction temperature is lowered to 140°C, and polybutylene succinate is added The diethanolamine hydrochloride of glycol ester prepolymer quality 0.01 is as ionic monomer, vacuumizes reaction 2h, logical nitrogen and adds the chain extender (chain extender) that accounts for polybutylene succinate pr...

Embodiment 2

[0049] Before the esterification, feed dry nitrogen into the flask, replace the air in the bottle, and repeat 5 times to remove the air in the bottle, and the system is under the protection of nitrogen. Alcohol (BD, 1.2 mole parts) was mixed, and then the system was heated to 180°C under stirring, and the temperature was maintained until the collected by-product water was close to the theoretical value, and then 1000ppm of titanic acid relative to the total mass of succinic acid and butanediol was added Tetrabutyl ester is used as a catalyst, and the reaction temperature is raised to 210°C while vacuuming, and reacted for 1.5h to obtain a polybutylene succinate prepolymer, then the reaction temperature is lowered to 140°C, and polybutylene succinate is added The diethanolamine hydrochloride of glycol ester prepolymer quality 0.03 is as ionic monomer, vacuumizes reaction 2h, logical nitrogen and adds the chain extender (chain extender) that accounts for polybutylene succinate pr...

Embodiment 3

[0051] Before the esterification, feed dry nitrogen into the flask, replace the air in the bottle, and repeat 5 times to remove the air in the bottle, and the system is under the protection of nitrogen. Alcohol (BD, 1.2 mole parts) was mixed, and then the system was heated to 180°C under stirring, and the temperature was maintained until the collected by-product water was close to the theoretical value, and then 1000ppm of titanic acid relative to the total mass of succinic acid and butanediol was added Tetrabutyl ester is used as a catalyst, and the reaction temperature is raised to 210°C while vacuuming, and reacted for 1.5h to obtain a polybutylene succinate prepolymer, then the reaction temperature is lowered to 140°C, and polybutylene succinate is added The diethanolamine hydrochloride of glycol ester prepolymer quality 0.05 is as ionic monomer, vacuumizes reaction 2h, logical nitrogen and adds the chain extender (chain extender) that accounts for polybutylene succinate pr...

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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 in particular relates to a thermally conductive polybutylene succinate ionomer and a preparation method and application thereof. Background technique [0002] Polymers are widely used in various industrial fields such as structural materials and electronic products due to their diverse functions, light weight, low cost, and good chemical stability. However, the low thermal conductivity of polymers limits their applications in certain fields. The low thermal conductivity of polymers is one of the major technical barriers for polymer-based flexible electronics due to their limited ability to conduct heat. Common synthetic polymers, including polyethylene terephthalate (PET), low-density polyethylene (LD-PE), polypropylene, and polymethylmethacrylate (PMMA), typically have a thermal conductivity of 0.1 -0.3W / (m·k) range. Improve the thermal conductivity of polymers through physical ...

Claims

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Application Information

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Patent Type & Authority Applications(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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