Preparation method of polyether material, polyether film and preparation method thereof

A technology of polyester material and polyester film, which is applied in the field of preparation of polyester materials, can solve the problems of low flame retardancy of polyester film and inability to solve the problem of heat and humidity resistance of polyester film, and achieve high heat and humidity resistance of flame retardants , Excellent physical and mechanical properties and electrical insulation properties, the effect of high flame retardant properties

Active Publication Date: 2014-03-12
浙江南洋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese patent (authorized announcement number: CN101967272A) discloses a preparation method of polyester film for solar backplane film. The polyester film obtained by this method improves the moisture and heat resistance of the polyester film to a certain extent, but it cannot Solve the effect of adding flame retardants (phosphorus or other flame retardants) on the heat and humidity resistance of polyester films, which shows that the polyester film still cannot solve the problem of achieving high flame retardancy and high heat and humidity resistance at the same time
And the polyester film that this method obtains can only reach UL94VTM-2 grade aspect flame retardancy, and the flame retardancy of this polyester film is relatively low

Method used

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  • Preparation method of polyether material, polyether film and preparation method thereof
  • Preparation method of polyether material, polyether film and preparation method thereof
  • Preparation method of polyether material, polyether film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1000 parts by mass of purified terephthalic acid and 400 parts by mass of diol are added to the pulping tank, the diol is preferably ethylene glycol, and then 0.05 parts by mass of esterification is added to the reaction tank Catalyst sodium acetate, 0.5 parts by mass of polycondensation catalyst antimony trioxide and 0.05 parts by mass of stabilizer trimethyl phosphate, start the mixer, beating at a speed of 50-100 revolutions / min for 30 minutes, and then heating and heating to 245°C~ Carry out the esterification reaction at 250°C for 2.5 to 3.0 hours, and when the effluent amount of the esterification reaction reaches more than 95% of the theoretical effluent amount, the esterification reaction ends, and a post-esterification reaction slurry is obtained;

[0042] After the end of the esterification reaction, the slurry after the esterification reaction is transferred to the polycondensation reactor, and the temperature of the slurry after the esterification reaction is co...

Embodiment 2

[0044] 500 parts by mass of purified terephthalic acid and 200 parts by mass of ethylene glycol were added to the pulping tank, and then 0.03 parts by mass of the esterification catalyst magnesium acetate and 0.1 parts by mass of the polycondensation catalyst were added to the reaction tank. Antimony glycol and 0.1 parts by mass of stabilizer triphenyl phosphate, then start the mixer, beating at a speed of 50-100 revolutions per minute for 20 minutes, then heating and then raising the temperature to 255℃~260℃ for esterification reaction 3.5~4 When the effluent amount of the esterification reaction reaches more than 95% of the theoretical effluent amount, the esterification reaction ends, and a slurry after the esterification reaction is obtained;

[0045] After the end of the esterification reaction, the slurry after the esterification reaction is transferred to the polycondensation reactor, and the temperature of the slurry after the esterification reaction is continuously increa...

Embodiment 3

[0047] 800 parts by mass of purified terephthalic acid and 310 parts by mass of ethylene glycol were added to the pulping tank, and then 0.01 parts by mass of esterification catalyst cobalt acetate and 0.2 parts by mass of polycondensation catalyst ethyl were added to the reaction tank. A mixture of antimony diol and antimony trioxide and 0.1 parts by mass of stabilizer phosphoric acid, then start the mixer, beating at a speed of 50-100 revolutions per minute for 20 minutes, then heating and then raising to 250°C to 255°C for esterification React for 3.0 to 3.5 hours, when the effluent amount of the esterification reaction reaches more than 95% of the theoretical effluent amount, the esterification reaction ends, and a slurry after the esterification reaction is obtained;

[0048] After the esterification reaction is completed, transfer the esterification slurry to the polycondensation reactor, continue to increase the temperature of the esterification slurry to 275°C to 278°C, an...

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Abstract

The invention relates to a preparation method of a polyether material, a polyether film and a preparation method thereof, belonging to the technical field of a polyether film for a backboard film of a solar battery. In order to solve the problem of bad flame retardance and humidity resistance of the existing polyether film, the invention provides a polyether film which comprises a surface layer I, a core layer and a surface layer II, wherein the core layer comprises a polyether chip and a master batch polyether chip, and the core layer also comprises a modified highly humidity-resistant flame-retardant polyether material which is prepared by the following steps: in the presence of a catalyst, performing an esterification reaction between pure terephthalic acid and dihydric alcohol; after the reaction, performing a pre-condensation polymerization reaction; when the intrinsic viscosity reaches 0.20-0.30g / dl, adding a reaction type phosphorus-based flame retardant, increasing the vacuum degree, and performing a condensation polymerization reaction; when the intrinsic viscosity reaches 0.50-0.65g / dl, adding a chain extender ADR and an anti-hydrolysis agent aromatic polycarbodiimide for a copolymerization reaction. Meanwhile, the polyether film has the advantages of high flame retardance and high humidity resistance.

Description

Technical field [0001] The invention relates to a preparation method of a polyester material, a polyester film and a preparation method thereof, and belongs to the technical field of polyester films for solar battery back sheet films. Background technique [0002] At present, composite solar cell backsheet films at home and abroad mainly include composite films such as TPT, TPE, KPK and BBF, which are by far the most ideal protective structural material for crystalline silicon solar cell packaging. However, the solar cell back sheet film (TPT, TPE, KPK, BBF composite film, etc.) not only requires the properties of "Plastic King" fluoroplastics (aging resistance, corrosion resistance, solvent resistance, stain resistance and hydrophobicity, etc.), but also The performance of the ester (mechanical, high and low temperature resistance, aging resistance, non-cracking, excellent electrical insulation), but also to improve its moisture and heat resistance, water vapor barrier and flame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L79/00C08G63/692B32B27/06B32B27/36B29C47/06B29C47/92H01L31/049B29C48/08B29C48/92
CPCY02E10/50B29C48/92B29C2948/92704B29C48/08B29C2948/92895
Inventor 曾强杨安文狄伟
Owner 浙江南洋科技有限公司
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