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Multipurpose polyester film and preparation method thereof

A polyester film, multi-purpose technology, applied in the field of polyester film, can solve the problems of polyester film complexity, difficult customs supervision, difficult to judge, etc.

Active Publication Date: 2014-01-01
福建百宏高新材料实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complexity and difficulty of judgment of polyester film, it brings many difficulties to the supervision of customs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] A multi-purpose polyester film is composed of a functional auxiliary agent and PET slices, wherein the functional auxiliary agent accounts for 1.5% of the weight fraction of the polyester film.

[0076] The functional additive is a capsule structure, the core layer is composite coconut shell powder, and the thickness ratio of the capsule layer to the core layer is 1:18; the diameter of the functional masterbatch is 0.5-3 μm; the composite coconut shell powder contains nano-dioxide Coconut shell powder of silicon, nano titanium dioxide and nano zinc oxide.

[0077] A method for preparing a multi-purpose polyester film, which adopts a biaxial stretching process for production, and its specific process is: 1. Preparation of functional additives, 2. Pre-crystallization drying, 3. Melt extrusion, 4. Casting, 5. Longitudinal stretching Stretching and transverse stretching, seven traction, slicing, corona treatment, winding, inspection, characterized in that the pre-crystalliz...

Embodiment 2

[0134] A multipurpose polyester film is composed of a functional auxiliary agent and PET slices, wherein the functional auxiliary agent accounts for 2.5% of the polyester film's mass fraction.

[0135] The functional additive is a capsule structure, the core layer is composite coconut shell powder, and the thickness ratio of the capsule layer to the core layer is 1:18; the diameter of the functional masterbatch is 0.5-3 μm; the composite coconut shell powder contains nano-dioxide Coconut shell powder of silicon, nano titanium dioxide and nano zinc oxide.

[0136] A method for preparing a multi-purpose polyester film, which adopts a biaxial stretching process for production, and its specific process is: 1. Preparation of functional additives, 2. Pre-crystallization drying, 3. Melt extrusion, 4. Casting, 5. Longitudinal stretching Stretching and transverse stretching, seven traction, slicing, corona treatment, winding, inspection, characterized in that the pre-crystallization te...

Embodiment 3

[0188] A multi-purpose polyester film is composed of a functional auxiliary agent and PET slices, wherein the functional auxiliary agent accounts for 3.5% of the mass fraction of the polyester film.

[0189] The functional additive is a capsule structure, the core layer is composite coconut shell powder, and the thickness ratio of the capsule layer to the core layer is 1:18; the diameter of the functional masterbatch is 0.5-3 μm; the composite coconut shell powder contains nano-dioxide Coconut shell powder of silicon, nano titanium dioxide and nano zinc oxide.

[0190] A method for preparing a multi-purpose polyester film, which adopts a biaxial stretching process for production, and its specific process is: 1. Preparation of functional additives, 2. Pre-crystallization drying, 3. Melt extrusion, 4. Casting, 5. Longitudinal stretching Stretching and transverse stretching, seven traction, slicing, corona treatment, winding, inspection, characterized in that the pre-crystallizat...

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Abstract

The invention relates to a multipurpose polyester film and a preparation method thereof. The preparation method adopts a biaxial orientation technique and comprises the following steps: 1. preparation of functional assistants; 2. precrystallization and drying; 3. melt extrusion: the precrystallized and dried PET (polyethylene terephthalate) slices and the functional assistants are heated and molten by an extruder, and the melt is uniformly delivered to a die head for slab casting under the push of extrusion pressure; 4. slab casting: the uniform and stable melt from the extrusion system runs on rotating quenching rollers through the die head to form an amorphous slab; 5. longitudinal stretching and lateral stretching: the cast slab is subjected to longitudinal stretching after entering a longitudinal stretching machine, and subjected to lateral stretching after entering a lateral stretching machine; and 7. pulling, slicing, corona treatment, rolling and inspection. The method has wide application range, such as environment-friendly films, twist wrap films, high-brightness films, insulation films, capacitive films, car protecting films, bronzing films, aluminizing films and composite packaging films.

Description

【Technical field】 [0001] The invention relates to the technical field of polyester film, in particular to a multipurpose polyester film and a preparation 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. It is a colorless, transparent and glossy film with excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high and low temperature resistance, chemical resistance, oil resistance, air tightness and fragrance retention. , is one of the commonly used barrier compos...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K9/10C08K3/04C08K3/36C08K3/22B29C55/14
Inventor 彭齐飞邱育钦
Owner 福建百宏高新材料实业有限公司
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