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A kind of polyterephthalate-co-sebacate resin and preparation method thereof

A technology of polyterephthalate and phthalate, applied in the field of polymer synthesis, can solve the problems of unfavorable development of food packaging films, and achieve low static friction coefficient, high light transmittance, good transparency and The effect of processability

Active Publication Date: 2019-03-22
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned slip agents and opening agents are non-food additives, which are unfavorable for the development of food packaging films

Method used

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  • A kind of polyterephthalate-co-sebacate resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: The quality of sebacic acid is 2616.5g, the quality of 1,4-butanediol is 3395.8g, the quality of terephthalic acid is 2024.0g, the quality of tetrakis (2-ethylhexyl) titanate is 6.0 g.

Embodiment 2

[0026] Example 2: The quality of sebacic acid is 2625.9g, the quality of 1,4-butanediol is 3394.7g, the quality of terephthalic acid is 2015.1g, and the quality of tetrakis (2-ethylhexyl) titanate is 6.0 g.

Embodiment 3

[0027] Example 3: The quality of sebacic acid is 2639.9g, the quality of 1,4-butanediol is 3393.2g, the quality of terephthalic acid is 2001.6g, and the quality of tetrakis (2-ethylhexyl) titanate is 6.0 g.

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Abstract

The invention discloses a polyterephthalate-co-sebacate resin and a preparation method thereof. It is formed by polymerizing a dibasic acid and a dibasic alcohol. In terms of mole percentage, the dibasic acid consists of 45mol %-55mol% of terephthalic acid and 45mol%-55mol% of sebacic acid; the dihydric alcohol is 1,4-butanediol, and the polyterephthalate-co-decanedi The thermal performance parameter of ester resin satisfies the following relationship formula: T crystallization peak half peak width / (T melting point-T crystallization temperature)=0.05-0.26; By this polyterephthalate-co-sebacate resin When made into a film with a thickness of 25±1µm, its static friction coefficient is 0.2‑0.3, and its light transmittance is above 90%, which balances the light transmittance and static friction coefficient of the film material, and maintains a high light transmittance. At the same time, it also has a low static friction coefficient, and can be processed smoothly without adding anti-blocking agent or compatibilizer, so that the prepared polyterephthalate-co-sebacate resin shows good transparency and processing performance .

Description

technical field [0001] 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 [0002] 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 very active in the research and market application of biodegradable plastics. One of the best degradable materials. [0003] However, in actual use, it is found that the crystallization rate of polyterephthalate-co-sebacate resin not only affects the transparency of the film material, but also affects the processing of the film. If the crystallization rate is too slow, the freshly blown film tends to be self-adhesive when it is rolled on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/183C08G63/85C08G63/78
CPCC08G63/183C08G63/78C08G63/85
Inventor 王伟伟张秋汉蔡彤旻黄险波曾祥斌苑仁旭郭志龙唐美军
Owner KINGFA SCI & TECH CO LTD