Polyester composite film and its preparation method
A composite film and polyester technology, applied in the field of polyester composite film, can solve the problems of large equipment investment, high energy consumption, environmental pollution, etc., and achieve the effects of low oxygen permeability, increased fracture growth rate, and reduced production costs.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0044] 1. Preparation of modified copolyester raw materials
[0045] On a 1 cubic polyester semi-continuous device, according to the method produced by the device, use about 665 kg of large bright chips and 108 kg of ethylene glycol and an appropriate amount of alcoholysis catalyst to carry out alcoholysis at 260 ° C to Prepare mother liquor; add 300 kg of PTA (or equivalent molar amount of dibasic acid), 150 kg of EG and a certain molar amount of modified monomer CHDM in each batch in the beating kettle, and an appropriate amount of catalyst and melt strength strengthening agent, the catalyst ethylene glycol antimony is added in a weight ratio of 0.35‰ of the copolyester, and the melt strength enhancer is 1,2,4-trimellitic anhydride, and the weight ratio added is 0.125‰ of the copolyester; each batch The slurry is fed into the esterification tank at a certain speed, so that the reaction temperature in the esterification tank is controlled at 250°C; the materials in each batch...
Embodiment 2
[0058] 1. Preparation of modified copolyester raw materials
[0059] On a 1 cubic polyester semi-continuous device, according to the method produced by the device, use about 665 kg of large bright chips and 108 kg of ethylene glycol and an appropriate amount of alcoholysis catalyst to carry out alcoholysis at 260 ° C to Prepare mother liquor; In beating kettle, add 300 kilograms of PTA (or the dibasic acid of considerable molar quantity), 150 kilograms of EG and the modified monomer CHDM of certain molar quantity in every batch, and an appropriate amount of catalyzer, catalyzer antimony acetate The weight ratio added is 0.45‰ of the copolyester; each batch of slurry is added to the esterification kettle at a certain speed, so that the reaction temperature in the esterification kettle is controlled at 250°C; the materials in each batch of beating kettle are completely added to the esterification kettle And after the reaction is complete, the part of the esterified lactone in th...
Embodiment 3
[0072] 1. Preparation of modified copolyester raw materials
[0073] On a 1 cubic polyester semi-continuous device, according to the method produced by the device, use about 665 kg of large bright chips and 108 kg of ethylene glycol and an appropriate amount of alcoholysis catalyst to carry out alcoholysis at 260 ° C to Prepare mother liquor; add 300 kg of PTA (or equivalent molar amount of dibasic acid), 150 kg of EG and a certain molar amount of CHDM in each batch in the beating kettle, and an appropriate amount of catalyst and melt strength enhancer, catalyst antimony The weight ratio added is 0.2‰ of the copolyester, and the weight ratio of the melt strength enhancer glycerin added is 0.05‰ of the copolyester; each batch of slurry is added to the esterification kettle at a certain speed, so that the esterification kettle The reaction temperature is controlled at 250°C; the material in each batch of beating kettle is completely added to the esterification kettle and after t...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More