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Synthesis method of poly polyethylene terephthalate-adipate-m-epoxypentadecyl phenol butanediete

A technology of epoxy pentadecylphenol butylene glycol and m-epoxypentadecylphenol, which is applied in the field of polymer material synthesis, can solve the problem of high price, poor aging resistance of PBAT film, and unsatisfactory mechanical properties. Demand and other issues, to achieve the effects of improving aging resistance, reducing application costs, and reducing the content of terminal carboxyl groups

Active Publication Date: 2020-12-15
广州市海珥达环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PBAT is currently the most promising material to replace traditional plastics, but its large-scale development and application are mainly restricted by the high price compared with traditional plastics.
In addition, due to the existence of terminal carboxyl groups in the main chain structure of PBAT, it will catalyze the degradation of PBAT, resulting in poor aging resistance of PBAT film, and the mechanical properties cannot meet the needs of use during use.

Method used

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  • Synthesis method of poly polyethylene terephthalate-adipate-m-epoxypentadecyl phenol butanediete
  • Synthesis method of poly polyethylene terephthalate-adipate-m-epoxypentadecyl phenol butanediete
  • Synthesis method of poly polyethylene terephthalate-adipate-m-epoxypentadecyl phenol butanediete

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A kind of synthetic method of polyterephthalic acid-adipic acid-m-epoxypentadecylphenol butylene glycol ester, comprises the following steps:

[0034] 1) Synthesis of m-epoxypentadecylphenol

[0035] Add 500g of pentadecenylphenol and 50g of formic acid into a three-necked round-bottomed flask with mechanical stirring, a separatory funnel and a thermometer, in 390g of 50% H 2 o 2 Add 5g of phosphoric acid into the separatory funnel and start dropping. The dropping temperature does not exceed 40°C. After the dropping is completed, the temperature is raised to 60°C to continue the reaction for 3 hours. , the upper layer oily ester is washed to neutrality, and 50 ℃ dewaters through vacuum distillation to obtain light yellow oily matter m-epoxypentadecylphenol, its epoxy value is 4.52%, and the viscosity at 25 ℃ is 8250cps;

[0036] 2) Synthesis of polyadipate / butylene terephthalate (PBAT)

[0037] Using the co-esterification method, using n-tetrabutyl titanate as a cata...

Embodiment 2

[0041] A kind of synthetic method of polyterephthalic acid-adipic acid-m-epoxypentadecylphenol butylene glycol ester, comprises the following steps:

[0042] 1) Preparation of m-epoxypentadecylphenol

[0043] Add 500g of pentadecenylphenol and 70g of formic acid into a three-necked round-bottomed flask with mechanical stirring, a separatory funnel and a thermometer, in 350g of 50% H 2 o 2Add 8g of phosphoric acid into the separatory funnel and start dropping. The dropping temperature does not exceed 40°C. After the dropping is completed, the temperature is raised to 55°C to continue the reaction for 3.5h. Water, and the upper layer of oil and ester was washed with water until neutral, and the water was removed by distillation under reduced pressure at 55°C to obtain a light yellow oily substance, m-epoxypentadecylphenol, with an epoxy value of 4.47%, and a viscosity of 8968cps at 25°C;

[0044] 2) Synthesis of polyadipate / butylene terephthalate (PBAT)

[0045] Using the co-...

Embodiment 3

[0049] A kind of synthetic method of polyterephthalic acid-adipic acid-m-epoxypentadecylphenol butylene glycol ester, comprises the following steps:

[0050] 1) Preparation of m-epoxypentadecylphenol

[0051] Add 500g of pentadecenylphenol and 100g of formic acid into a three-necked round-bottomed flask with mechanical stirring, a separatory funnel and a thermometer, in 300g of 50% H 2 o 2 Add 10g of phosphoric acid into the separatory funnel and start dropping. The dropping temperature does not exceed 40°C. After the dropping is completed, the temperature is raised to 50°C to continue the reaction for 4 hours. , the upper layer of oily ester was washed to neutrality, and 60 DEG C dewatered under reduced pressure to obtain light yellow oily matter meta-epoxypentadecylphenol, its epoxy value was 4.31%, and its viscosity at 25 DEG C was 9525 cps;

[0052] 2) Synthesis of polyadipate / butylene terephthalate (PBAT)

[0053] Using the co-esterification method, using n-tetrabutyl ...

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Abstract

The invention belongs to the technical field of high polymer materials, and relates to a synthesis method of poly polyethylene terephthalate-adipate-m-epoxypentadecyl phenol butanediete. The PBATE material is prepared by synthesizing poly (butylene terephthalate) adipate (PBAT) and m-epoxypentadecyl phenol, and the mass ratio of PBAT to m-epoxypentadecyl phenol is (1.8 to 19): 1; the m-epoxy pentadecyl phenol is prepared by carrying out epoxidation reaction on m-pentadecenyl phenol and hydrogen peroxide under the action of weak acid and a catalyst, so that phenolic hydroxyl is reserved, and anepoxy bond is generated; the two functional groups react with carboxyl-terminated groups in PBAT, so that the content of carboxyl-terminated groups in PBATE can be remarkably reduced, and the ageingresistance of PBATE is improved; the mechanical property of the material is superior to that of PBAT, so that a large amount of cheap filler can be added in practical application, the production costis remarkably reduced, and the material has a wide market application prospect.

Description

technical field [0001] The invention belongs to the technical field of polymer material synthesis, and in particular relates to a synthesis method of polyterephthalic acid-adipic acid-m-epoxypentadecylphenol butylene glycol ester. Background technique [0002] In recent years, with the rapid development of social economy, the widespread use of polymer materials, especially plastic films, has brought great convenience to people's lives. Traditional plastic film materials mainly come from petroleum, such as polyethylene, polypropylene, etc. These plastic films also bring a series of environmental and energy problems during use. A large amount of plastic waste seriously affects people's health and living environment. For example, some agricultural land has begun to reduce production due to the impact of waste plastic film, and the "white pollution" caused by waste plastics has caused serious harm to the environment. Therefore, with the dwindling of non-renewable petroleum reso...

Claims

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Application Information

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IPC IPC(8): C08G63/91C08G63/183
CPCC08G63/183C08G63/916
Inventor 邓健能毋亭亭阳范文李道斌
Owner 广州市海珥达环保科技有限公司
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