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Macromolecule nucleating agent modified polyethylene glycol terephthalate

A technology of polyethylene terephthalate and ethylene terephthalate, which is applied in the field of polymer nucleating agent modified polyethylene terephthalate, can solve the problem of polymer crystallization. The molecular weight of the nucleating agent should not be too large, the ability to promote crystallization is weakened, and the mobility of the molecular chain is reduced, so as to achieve good dispersion, reduce crystal defects, and improve melt fluidity.

Inactive Publication Date: 2015-06-10
JIESHOU CITY TIANHONG PACKAGING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The molecular weight of polymer crystallization nucleating agent should not be too large, otherwise its compatibility with PET will be poor, and its ability to promote crystallization will be weakened due to the decrease in the mobility of molecular chains

Method used

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  • Macromolecule nucleating agent modified polyethylene glycol terephthalate
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  • Macromolecule nucleating agent modified polyethylene glycol terephthalate

Examples

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Effect test

example 1

[0023] Example 1: (using polymer nucleating agent: poly-3-methylbutene-1)

[0024] A polymer nucleating agent modified polyethylene terephthalate, comprising the following raw materials in parts by weight: PET: 50kg, polymer nucleating agent (poly-3-methylbutene-1): 0.1kg; crystallization accelerator (polyethylene glycol): 0.1kg; antioxidant DLTP: 0.1kg; ultraviolet absorber UV-P: 0.1kg.

[0025] Improve polyethylene terephthalate according to the polymeric nucleating agent described above, the preparation method comprises the following steps: (1) poly-3-methylbutene-1, polyethylene glycol, PET are respectively added Dry in an oven at 80-150°C for 4-6 hours before use;

[0026] (2) Mix poly 3-methylbutene-1 and PET evenly, then add polyethylene glycol, antioxidant DLTP and ultraviolet absorber UV-P in sequence, mix in a high-speed mixer for 2 to 8 minutes, and use a twin-screw The extruder performs melt blending extrusion granulation. The temperature setting of the extruder...

Embodiment 2-27

[0027] Embodiment 2-27, use macromolecule class nucleating agent: poly-3-methylbutene-1, the parts by weight of other raw materials that adopt is as follows: unit kg

[0028] Example 2 3 4 5 6 7 8 9 10 11 PET 50 50 50 50 50 50 50 50 80 80 poly-3-methylbutene-1 0.3 0.5 0.1 0.3 0.5 0.1 0.3 0.5 0.1 0.3 polyethylene glycol 0.1 0.1 0.3 0.3 0.3 0.5 0.5 0.5 0.1 0.1 DLTP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 UV-P 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2

[0029] Example 12 13 14 15 16 17 18 19 20 21 PET 80 80 80 80 80 80 80 100 100 100 poly-3-methylbutene-1 0.5 0.1 0.3 0.5 0.1 0.3 0.5 0.1 0.3 0.5 polyethylene glycol 0.1 0.3 0.3 0.3 0.5 0.5 0.5 0.1 0.1 0.1 DLTP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 UV-P 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3

[0030] Example 22 23 24 25 26 27...

example 28

[0031] Example 28: (using polymer nucleating agent: polyvinylcyclosilane)

[0032] A polymer nucleating agent modified polyethylene terephthalate, comprising the following raw materials in parts by weight: PET: 50kg, polymer nucleating agent (polyvinylcyclosilane): 0.1kg; crystallization Accelerator (polyethylene glycol): 0.1kg; antioxidant DLTP: 0.1kg; ultraviolet absorber UV-P: 0.1kg.

[0033] According to the polymer nucleating agent described above to improve polyethylene terephthalate, the preparation method comprises the following steps: (1) respectively mixing polyvinylcyclosilane, polyethylene glycol, and PET at 80-150° C. Dry in the oven for 4-6 hours before use;

[0034] (2) Mix polyvinylcyclosilane and PET evenly, then add polyethylene glycol, antioxidant DLTP and ultraviolet absorber UV-P in sequence, mix in a high-speed mixer for 2 to 8 minutes, and use a twin-screw extruder to process Melt blending extrusion granulation. The temperature setting of the extruder...

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Abstract

A macromolecule nucleating agent modified polyethylene glycol terephthalate is characterized by being prepared by the following raw materials in parts by weight: 50-100 parts of polyethylene glycol terephthalate, 0.1-0.5 part of macromolecule nucleating agent, 0.1-0.5 part of crystallization prompter, 0.1-0.3 part of antioxidant and 0.1-0.3 part of ultraviolet light absorber. The macromolecule nucleating agent is none in odor, good in dispersibility and compatibility and high in crystalline degree and the mechanical property of a product is good. The macromolecule nucleating agent is a novel functional assistant for prompting polymer crystallization and improving grain structure thereof, can realize heterogeneous nucleation of polymer, improve rigidity, wearing resistance and processing performance of a material, improve crystalline degree and crystallization rate, reduce the grain size, reduce grain defects, and make crystals be more perfect, and therefore the rigidity, wearing resistance and electricity endurance of a mixer are improved to a certain extent, the melt fluidity is improved, and the extruding and injection molding are prompted.

Description

technical field [0001] The invention relates to the technical field of resin products, in particular to a polymer nucleating agent-modified polyethylene terephthalate. Background technique [0002] Polyethylene terephthalate (PET) has excellent wear resistance, heat resistance and chemical resistance, and its slow crystallization rate and slow nucleation process are conducive to the production of highly transparent blow molding bottles, but also Therefore, it cannot meet the needs of rapid injection molding in industry, thus restricting its application in engineering plastics. [0003] By adding nucleating agents and crystallization accelerators, the crystallization speed of PET can be increased, and its impact strength can also be improved. The emergence of PET nucleating agents has largely solved the problems of its engineering application. Although there are many substances that can be used as PET nucleating agents, the nucleating agents that are actually used to produce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/20C08L43/04C08L71/08B29B9/06B29C47/92B29C48/92
Inventor 吴磊张德顺胡伟李汪洋陈辉孙晓华王若愚谢玉良徐凤锦
Owner JIESHOU CITY TIANHONG PACKAGING MATERIAL
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