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Polyterephthalate-co-sebacate resin and preparation method thereof

A technology of polyethylene terephthalate and phthalate, applied in the field of polymer synthesis, can solve the problems of material waste, poor moisture permeability of membrane materials, and affecting the application of membrane materials

Inactive Publication Date: 2021-07-30
ZHUHAI WANTONG CHEM +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Yet polyterephthalate-co-sebacate resin also has the following defects: when polyterephthalate-co-sebacate resin is made into film material, the moisture permeability of film material is relatively low. Poor, affecting the application of membrane materials
At present, the moisture permeability of membrane materials is mainly adjusted by the thickness of the membrane, such as PE membrane, and this adjustment method has certain defects. Too thick may cause material waste, and too thin may sacrifice the mechanical properties of the material.

Method used

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  • Polyterephthalate-co-sebacate resin and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] The parts of sebacic acid were 26.52, the parts of 1,4-butanediol were 42.71, the parts of terephthalic acid were 30.71, and the parts of tetrakis(2-ethylhexyl) titanate were 0.06.

Embodiment 2

[0030]The parts of sebacic acid were 30.27, the parts of 1,4-butanediol were 42.41, the parts of terephthalic acid were 27.26, and the parts of tetrakis(2-ethylhexyl) titanate were 0.06.

Embodiment 3

[0032] The parts of sebacic acid are 21.86, the parts of 1,4-butanediol are 43.08, the parts of terephthalic acid are 35.00, and the parts of tetrakis (2-ethylhexyl) titanate are 0.06.

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Abstract

The invention discloses polyterephthalate-co-sebacate resin and a preparation method thereof. The structure of the polyterephthalate-co-sebacate resin meets the following relational expression: S[delta]<hydrogen on a conjugated carbon chain> / S[delta]<hydrogen on a saturated carbon chain 1.2-2.4> = 0.1-0.35, wherein the S[delta]<hydrogen on a conjugated carbon chain> is the total area of the peak integral of the hydrogen on the conjugated carbon chain in the 1H NMR spectrogram, and the S[delta]<hydrogen on a saturated carbon chain 1.2-2.4> is the total area of the peak integral of the hydrogen which is on the saturated carbon chain in the 1H NMR spectrogram and has chemical shift being 1.2-2.4 ppm. When the polyterephthalate-co-sebacate resin is prepared into a film with the thickness of 25 + / -1 [mu] m, the water vapor transmission rate is 100-1500 g / m < 2 > / d, and the polyterephthalate-co-sebacate resin has good moisture permeability.

Description

[0001] Cross References to Related Applications [0002] The present invention is a divisional application submitted on September 9, 2016 with the application number 201610813868.2 and the title of the invention "a poly terephthalate-co-sebacate resin and its preparation method". technical field [0003] The invention belongs to the field of polymer synthesis, and in particular relates to a polyterephthalate-co-sebacate resin and a preparation method thereof. Background technique [0004] Polyterephthalate-co-sebacate resin is a copolymer of butylene sebacate and butylene terephthalate, polyterephthalate-co-sebacate The ester resin contains flexible aliphatic chains and rigid aromatic chains, so it has high toughness and high temperature resistance. Due to the existence of ester bonds, it is also biodegradable. It is currently very active in the research and market application of biodegradable plastics. One of the best degradable materials. [0005] Yet polyterephthalate-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183C08G63/78
CPCC08G63/183C08G63/78C08G63/85
Inventor 王伟伟袁志敏蔡彤旻黄险波曾祥斌苑仁旭郭志龙唐美军
Owner ZHUHAI WANTONG CHEM