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Preparation method of antistatic PBAT polymer and antistatic PBAT polymer

A kind of polymer and antistatic technology, which is applied in the field of polymer preparation, can solve the problems of limited application, and achieve the effect of improving conversion rate, increasing antistatic performance and good durability

Pending Publication Date: 2021-01-29
CHINESE TEXTILE ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in existing applications, due to the existence of static electricity, its application in some applications is limited.

Method used

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  • Preparation method of antistatic PBAT polymer and antistatic PBAT polymer
  • Preparation method of antistatic PBAT polymer and antistatic PBAT polymer
  • Preparation method of antistatic PBAT polymer and antistatic PBAT polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In the first esterification tank, add 100 kilograms of adipic acid, the amount of butanediol added is (1.2:1 molar ratio to adipic acid), and tetrabutyl titanate catalyst is added (0.02 %), the esterification temperature is 165° C. The esterification rate reaches 99.0%, and the first product is obtained.

[0041] In the second esterification tank, add 100 kilograms of terephthalic acid, the amount of butanediol added is (the molar ratio with adipic acid is 1.3:1), and the tetraisopropyl titanate catalyst is added (the molar amount of terephthalic acid 0.02%), the esterification temperature is 250°C, the esterification rate reaches 99.0%, and the second product is obtained.

[0042] The weight ratio of the first product and the second product is 1:1 and pumped into the polymerization reactor respectively, and the molar amount of the stabilizer antioxidant 1010 added is the total molar amount of the terephthalic acid and adipic acid 0.01%. The molecular weight of the ad...

Embodiment 2

[0046] In the first esterification tank, add 100 kilograms of adipic acid, the amount of butanediol added is (1.2:1 molar ratio to adipic acid), and tetrabutyl titanate catalyst is added (0.02 %), the esterification temperature is 175° C. The esterification rate reaches 99.0%, and the first product is obtained.

[0047] In the second esterification tank, add 100 kilograms of terephthalic acid, the amount of butanediol added is (the molar ratio to succinic acid is 1.3:1), and the tetraisopropyl titanate catalyst is added (the molar amount of terephthalic acid 0.02%), the esterification temperature is 255°C, the esterification rate reaches 99.0%, and the second product is obtained.

[0048] The weight ratio of the first product and the second product is 1:1 and pumped into the polymerization reactor respectively, and the molar amount of the stabilizer antioxidant 1010 added is the total molar amount of the terephthalic acid and adipic acid 0.01%. The molecular weight of polyethy...

Embodiment 3

[0052] In the first esterification tank, add 100 kilograms of adipic acid, the amount of butanediol added is (1.2:1 molar ratio to adipic acid), and tetrabutyl titanate catalyst is added (0.02 %), the esterification temperature is 165° C. The esterification rate reaches 99.0%, and the first product is obtained.

[0053] In the second esterification tank, add 100 kilograms of terephthalic acid, the amount of butanediol added is (the molar ratio with adipic acid is 1.3:1), and the tetraisopropyl titanate catalyst is added (the molar amount of terephthalic acid 0.02%), the esterification temperature is 250°C, the esterification rate reaches 99.0%, and the second product is obtained.

[0054] The weight ratio of the first product and the second product is 1:1 and pumped into the polymerization reactor respectively, and the molar amount of the stabilizer antioxidant 1010 added is the total molar amount of the terephthalic acid and adipic acid 0.01%. The molecular weight of the ad...

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Abstract

The invention discloses a preparation method of an antistatic PBAT polymer and the antistatic PBAT polymer, and belongs to the technical field of polymer preparation. The method comprises the steps ofmixing p-adipic acid, butanediol and a first catalyst, and carrying out a first esterification reaction to obtain a first intermediate product; mixing terephthalic acid, butanediol and a second catalyst, and carrying out a second esterification reaction to obtain a second intermediate product; carrying out pre-polycondensation reaction on the first catalyst, the second catalyst, a set dosage of polyethylene glycol ether and a polycondensation catalyst in a polymerization reaction kettle to obtain a pre-polycondensation product; and carrying out final polycondensation reaction on the pre-polycondensation product to obtain the antistatic PBAT polymer. The polymer is prepared by the method. According to the method, the polyethylene glycol ether is introduced to the PBAT main chain, the polyethylene glycol ether can improve the antistatic property of the PBAT copolymer, and the antistatic effect is good in durability. In addition, the first esterification reaction and the second esterification reaction are separately carried out, so that more byproducts are prevented from being generated.

Description

technical field [0001] The invention relates to the technical field of polymer preparation, in particular to a preparation method of an antistatic PBAT polymer and an antistatic PBAT polymer. Background technique [0002] PBAT is a thermoplastic biodegradable plastic, which is a copolymer of butylene adipate and butylene terephthalate. It has the characteristics of both PBA and PBT. It has good ductility and elongation at break, and Good heat resistance and impact performance; in addition, it also has excellent biodegradability, and is currently one of the most active biodegradable plastics in research and one of the best degradable materials in the market. However, in existing applications, due to the existence of static electricity, its application in some applications is limited. Contents of the invention [0003] In view of this, the present invention provides a method for preparing an antistatic PBAT polymer and an antistatic PBAT polymer, which can improve the antis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/672C08G63/78C08G63/85C08G63/183
CPCC08G63/672C08G63/183C08G63/78C08G63/85
Inventor 刘伯林
Owner CHINESE TEXTILE ACAD
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