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Preparation method of polyester filler material containing isosorbide and methyl-beta-cyclodextrin

A technology of isosorbide and polyester filler, applied in the field of polyester preparation, to achieve the effect of reducing the loss of raw materials, wide selection range, and reducing the probability of ring formation of product molecules

Inactive Publication Date: 2021-02-05
南京江北新区生物医药公共服务平台有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the above preparation of polyester filler material with isosorbide and cyclodextrin components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add DMT (6.65g), methyl-β-cyclodextrin (89g), isosorbide (10g), stannous pyrophosphate (0.67g) and an appropriate amount of additives into a polymerization reactor equipped with a rectification tower , heated and stirred. When the temperature reaches 160ºC, it is evacuated to remove by-products, and the temperature is raised to 200ºC within 15 minutes, and the heating time is 60 minutes. Then the temperature was raised to 230ºC, the pressure was around 2mmHg, and the heating time was 90 min.

Embodiment 2

[0023] Add DMT (3.32g), methyl-β-cyclodextrin (89g), isosorbide (10g), stannous pyrophosphate (1.05g) and an appropriate amount of additives into a polymerization reactor equipped with a rectification tower , heated and stirred. When the temperature reaches 160ºC, it is evacuated to remove by-products, and the temperature is raised to 200ºC within 15 minutes, and the heating time is 60 minutes. Then the temperature was raised to 240ºC, the pressure was around 2mmHg, and the heating time was 90 min.

Embodiment 3

[0025] Add DMT (6.65g), methyl-β-cyclodextrin (89g), isosorbide (20g), stannous pyrophosphate (2.11g) and an appropriate amount of additives into a polymerization reactor equipped with a rectification tower , heated and stirred. When the temperature reached 160ºC, it was evacuated to remove by-products, and the temperature was raised to 190ºC within 15 minutes, and the heating time was 45 minutes. Then the temperature was raised to 230ºC, the pressure was around 2mmHg, and the heating time was 90 min.

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PUM

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Abstract

The invention discloses a preparation method of a polyester filler material containing isosorbide and methyl beta cyclodextrin. According to the method, a diacid part, methyl beta cyclodextrin and anisosorbide part are taken as monomers, stannous pyrophosphate is taken as a catalyst for reaction, and polyester is prepared by utilizing existing polymerization equipment at enough temperature and pressure. The stannous pyrophosphate is a non-toxic organic metal catalyst, and when the polymer is applied to medicines, human bodies, agriculture and the like, the property is very important. According to the method, the temperature required by reaction can be reduced, the loss of raw materials in the system is reduced, the occurrence probability of side reaction is reduced, and the molecular weight is not reduced. Meanwhile, when stannous pyrophosphate is left in the polymer, the settling velocity of the coating filler can be reduced, and the filler performance is improved. Meanwhile, the methyl beta ring paste is used as an embedded part to be inserted into a polyester polymer structure, the material mobile phase selection range is wide, high pressure resistance is achieved, and the method can be applied to microsphere filler or coating filler.

Description

technical field [0001] The invention relates to a method for preparing polyester, in particular to a method for preparing a polyester filler material containing isosorbide by using an organometallic catalyst. Background technique [0002] Traditional polyester (PET) is a polymer compound, which is produced by polycondensation of terephthalic acid and ethylene glycol to produce polyethylene terephthalate. PET has good fiber forming properties, mechanical properties, abrasion resistance, creep resistance, low water absorption and electrical insulation properties. Polyester is mainly used to produce polyester fiber (polyester), and is widely used in light industry, machinery, electronics, food packaging and other industrial fields as non-fiber films, plastics, packaging containers, adhesives, and coating products. However, with the development of society, ordinary polyester can no longer meet the growing needs of people's lives and industrial fields. [0003] The scientific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/668C08G63/85
CPCC08G63/668C08G63/85
Inventor 朱旨昂阚苏立孙祥徐晓岚卢清瑶王路殷倩倩
Owner 南京江北新区生物医药公共服务平台有限公司
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