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Modified polyester film and production method thereof

A technology of modified polyester and production method, applied in the field of polyester film

Inactive Publication Date: 2014-04-23
沈太英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, ordinary PET films can no longer meet these requirements, so PET must be modified from different angles according to different application requirements.

Method used

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  • Modified polyester film and production method thereof
  • Modified polyester film and production method thereof
  • Modified polyester film and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] A modified polyester film is composed of functional reagents, PET slices and bright PET slices, and is characterized in that its raw material composition mass percentage is:

[0079]

[0080] The functional reagent is a capsule structure, the core layer is composite powder, the thickness ratio of the capsule layer and the core layer is 1:22; the diameter of the functional masterbatch is 0.7-7 μm;

[0081] The composite powder is tea charcoal powder containing nano-titanium dioxide and nano-zinc oxide;

[0082] A production method of a modified polyester film, which is produced by a biaxial stretching process. The specific process is: 1. Preparation of functional reagents, 2. Pre-crystallization drying, 3. Melting extrusion, 4. Casting, 5. Longitudinal stretching And transverse stretching, seven traction, slicing, corona treatment, winding, inspection, characterized in that the pre-crystallization temperature is 151 ~ 158 ℃; melt extrusion pre-crystallized and dried P...

Embodiment 2

[0135] A modified polyester film is composed of functional reagents, PET slices and bright PET slices, and is characterized in that its raw material composition mass percentage is:

[0136]

[0137]

[0138] The functional reagent is a capsule structure, the core layer is composite powder, the thickness ratio of the capsule layer and the core layer is 1:22; the diameter of the functional masterbatch is 0.7-7 μm;

[0139] The composite powder is tea powder containing nano-titanium dioxide and nano-zinc oxide;

[0140] A production method of a modified polyester film, which is produced by a biaxial stretching process. The specific process is: 1. Preparation of functional reagents, 2. Pre-crystallization drying, 3. Melting extrusion, 4. Casting, 5. Longitudinal stretching And transverse stretching, seven traction, slicing, corona treatment, winding, inspection, characterized in that the pre-crystallization temperature is 151 ~ 158 ℃; melt extrusion pre-crystallized and drie...

Embodiment 3

[0192] A modified polyester film is composed of functional reagents, PET slices and bright PET slices, and is characterized in that its raw material composition mass percentage is:

[0193]

[0194] The functional reagent is a capsule structure, the core layer is composite powder, the thickness ratio of the capsule layer and the core layer is 1:22; the diameter of the functional masterbatch is 0.7-7 μm;

[0195] A production method of a modified polyester film, which is produced by a biaxial stretching process. The specific process is: 1. Preparation of functional reagents, 2. Pre-crystallization drying, 3. Melting extrusion, 4. Casting, 5. Longitudinal stretching And transverse stretching, seven traction, slicing, corona treatment, winding, inspection, characterized in that the pre-crystallization temperature is 151 ~ 158 ℃; melt extrusion pre-crystallized and dried PTT slices, PEN slices, PET slices, Dayouguang PET slices and modifiers are heated and melted by the extrude...

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Abstract

The invention relates to a modified polyester film and a production method thereof. The modified polyester film is composed of a functional reagent, PET (Polyethylene Terephthalate) chips and large bright PET chips and is characterized by comprising the following raw materials in percentage by mass: 1-3% of functional reagent, 1-5% of PTT (Polytrimethylene Terephthalate) chips, 1-5% of PEN (Polyethylene Naphthalate) chips, 25-50% of large bright PET chips and the balance of PET chips. The modified polyester film is widely applied in the fields such as environment-friendly films, twist wrap films, high bright films, insulating films, capacitor films, laminating pouch films, gold stamped films, aluminum laminated films and composite packaging films.

Description

【Technical field】 [0001] The invention relates to the technical field of polyester films, in particular to a modified polyester film and a production method thereof. 【Background technique】 [0002] Polyester film (PET) is a film material made of polyethylene terephthalate as a raw material, which is made into a thick sheet by extrusion and then biaxially stretched. At the same time, it is a kind of polymer plastic film, which is more and more favored by consumers because of its excellent comprehensive performance. Since my country's current production capacity and technical level still cannot meet the market demand, some still need to rely on imports. [0003] The overall performance of BOPET film is excellent, but there are also some shortcomings: ①Ordinary polyester film cannot be directly heat-sealed; ②The barrier property is not ideal; ③The heat resistance is not high enough; ④Transparency and gloss In terms of special-purpose films, it needs to be further improved; ⑤ ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/06C08K9/10C08K3/22C08K3/04B29C69/00B29C55/14B29C71/04B29C47/00
Inventor 沈太英
Owner 沈太英
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