Production system for polyester master batch for preparing polyester products

A production system and technology of polyester, applied in the field of production system of polyester masterbatch used to prepare polyester products, can solve the problems of greatly affecting the quality of polyester films, difficult production processes, films with poor gloss, etc., to achieve Excellent transparency, low cost, high light transmittance and one-way heat shrinkage

Active Publication Date: 2021-03-09
JIANGSU SHUANGXING COLOR PLASTIC NEW MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is mentioned in the document that when the particle size of the inorganic fine particles is less than 0.1 μm, the dispersibility is extremely deteriorated, causing particle aggregation, which easily leads to difficulties in the production process, and coarse protrusions are formed on the film, which may produce a film with poor gloss
[0006] The above-mentioned prior art all mentions that various inorganic particles are added in the preparation process of polyester film, and the influence of inorganic particles on the performance of polyester film can also be understood, but the problem of particle agglomeration in the actual production process of specific polyester film is still Very common and has a great impact on the quality of polyester film

Method used

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  • Production system for polyester master batch for preparing polyester products

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preparation example Construction

[0026] The preparation of the polyester of the present application, taking PET as example, preferably produces bishydroxyethyl terephthalate through esterification or transesterification of terephthalic acid or dimethyl terephthalate and ethylene glycol, by It is industrially produced by a polycondensation method in which a catalyst is used for polycondensation under high temperature and vacuum. In a specific embodiment, terephthalic acid, ethylene glycol, cyclohexanedimethanol, catalyst and heat stabilizer can be used as raw materials for esterification; or terephthalic acid, ethylene glycol, isophthalic acid , catalyst and heat stabilizer as raw materials for esterification. In another specific embodiment, the catalyst is any compound of Ti / Si non-heavy metal catalyst and antimony trioxide, and the added amount thereof is 0.01-0.09% of the weight of the polyester. In another specific embodiment, the heat stabilizer is a phosphoric acid compound, and its addition amount is 0...

Embodiment 1

[0047] Add 5.0kg of terephthalic acid, 2.2kg of ethylene glycol, and 1.10g of germanium dioxide into a 20L general-purpose polymerization reactor, and carry out esterification reaction at 230-265°C and 0.2-0.3Mpa (gauge pressure). After reaching the theoretical value, the system pressure was released to normal pressure. To react under these conditions, add 1.025g of triethyl phosphate, stir at normal pressure for 10 minutes, raise the temperature and lower the pressure to 280°C and below 100Pa, carry out the reaction for 3 hours under these conditions, and finally extrude through polymerized melt, pelletize, After drying, PET polyester chips with an intrinsic viscosity of 0.75 dl / g were obtained.

[0048] Dry 60 parts by weight of airgel particles with a particle size of 0.5 μm at 120 ° C for 4 hours; dry 10 parts by weight of polylactic acid particles with a particle size of 0.5 mm or less at 110 ° C for 4 hours; Polystyrene particles below mm and 5 parts by weight of polyet...

Embodiment 2

[0052] Add 5.0kg of terephthalic acid, 2.2kg of ethylene glycol, and 1.10g of germanium dioxide into a 20L general-purpose polymerization reactor, and carry out esterification reaction at 230-265°C and 0.2-0.3Mpa (gauge pressure). After reaching the theoretical value, the system pressure was released to normal pressure. To react under these conditions, add 1.025g of triethyl phosphate, stir at normal pressure for 10 minutes, raise the temperature and lower the pressure to 280°C and below 100Pa, carry out the reaction for 3 hours under these conditions, and finally extrude through polymerized melt, pelletize, After drying, PET polyester chips with an intrinsic viscosity of 0.75 dl / g were obtained.

[0053] Dry 70 parts by weight of airgel particles with a particle diameter of 10 μm at 120 ° C for 4 hours; dry 15 parts by weight of polylactic acid particles with a particle size of 0.5 mm or less at 110 ° C for 4 hours; The following polystyrene pellets were dried at 110°C for 4...

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Abstract

The invention discloses a production system for polyester master batch for preparing polyester products. The production system comprises a polyester preparation mechanism and a functional material preparation mechanism. According to the production system for the polyester master batch, on the basis of an existing polyester preparation mechanism, the functional material preparation mechanism and matched devices such as an extrusion device, a slicing device, a drying device and a connecting pipeline are integrated, and the production system can be used for continuously and efficiently producingthe polyester master batch; and the polyester master batch produced by the production system can be used as all or part of raw materials for producing various polyester products, including but not limited to all or part of raw materials of surface layers or core layers of polyester products such as various optics products, package products and electronic devices.

Description

technical field [0001] This application relates to a production system of polyester masterbatch for the preparation of polyester products. The polyester masterbatch can be used as all or part of the raw materials for the production of various polyester products, including but not limited to various optical, packaging All or part of the raw materials for the surface layer or core layer of polyester products such as electronics and electronic devices. Background technique [0002] Polyester is a general term for polymers obtained by polycondensation of polyols and polyacids. There are many kinds of polyester, the public is more familiar with PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PTT (polytrimethylene terephthalate), PCT ( Polyester-1,4-cyclohexanedimethanol, etc. Polyester, especially polyester represented by PET, due to its excellent heat resistance and mechanical strength, transparency, chemical resistance and other advantages, It is widely us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06C08L67/02C08L83/04C08L25/06C08L23/06C08L67/04C08K7/26C08J5/18C08G63/183C08G63/199
CPCB29B9/06C08L67/02C08J5/18C08G63/183C08G63/199C08J2367/02C08J2483/04C08J2425/06C08J2423/06C08J2467/04C08K7/26C08L2203/16C08L83/04C08L25/06C08L23/06C08L67/04
Inventor 吴培服邓十全吴迪池卫罗海洋
Owner JIANGSU SHUANGXING COLOR PLASTIC NEW MATERIALS
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