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A flattening treatment method and treatment device for polyamic acid resin solution

A polyamic acid resin and processing device technology, which is applied in the direction of flat products, household utensils, and other household utensils, can solve problems such as no special treatment methods for polyamic acid resin solutions, and achieve simple structure, uniform dispersion and stability , easy-to-achieve effects

Active Publication Date: 2017-05-24
GUILIN ELECTRICAL EQUIP SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Have not yet seen the report of other special treatment methods to polyamic acid resin solution

Method used

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  • A flattening treatment method and treatment device for polyamic acid resin solution
  • A flattening treatment method and treatment device for polyamic acid resin solution

Examples

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Effect test

Embodiment Construction

[0018] Example of flattening treatment device for polyamic acid resin solution

[0019] Embodiment of the flattening processing device of the polyamic acid resin solution figure 1 As shown, after the polyamic acid resin synthesis reaction kettle, the flattening molds from the first to third stages are sequentially connected, followed by the defoaming kettle, and then the salivation device.

[0020] The first-level to third-level flattening molds have slit openings, the length of the slit opening is 1200 mm, and the opening width is 0.6 mm.

[0021] The first-level and third-level flattening molds are equipped with cooling devices, and the mold temperature is -5°C. The second-level flattening molds are equipped with heating devices, and the mold temperature is 42°C.

[0022] In this example, the material conveying pipeline and the flattening mold are connected through a special adapter interface. The material conveying pipelines connected to the flattening mold are all straigh...

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Abstract

The invention discloses a method and device for flattening treatment of a polyamide acid resin solution. The method includes the steps that the polyamide acid resin solution passes through slip openings which is 100-3200 mm long and 0.01-5 mm wide one to eight times to be subjected to flattening pretreatment, and then dribbling is performed, wherein cold treatment at the temperature ranging from minus 30 DEG C to 25 DEG C or heat treatment at the temperature ranging from 20 DEG C to 100 DEG C is conducted while the flattening pretreatment is performed. According to the treatment device, one to eight flattening treatment moulds with the slit openings are additionally arranged behind a reaction still, in front of and / or behind a defoaming still and in front of a dribbling device, wherein the flattening treatment moulds are connected in sequence; the flattening treatment moulds are provided with cooling or heating devices; when the number of the flattening treatment moulds is more than two, moulds provided with cooling devices and moulds provided with heating devices are arranged alternatively. The mechanical property and heat stability of polyimide film products made from the polyamide acid resins treated through the method and device are both remarkably improved, and filler is scattered evenly and stably. The device is simple in structure, low in cost and easy to manufacture.

Description

technical field [0001] The invention relates to the technical field of polyimide film manufacture, in particular to a flattening treatment method and a treatment device for a polyamic acid resin solution. Background technique [0002] Polyimide film is a polymer material with excellent properties such as high strength, high toughness, wear resistance, high temperature resistance, and corrosion resistance. It is the main insulating material for making various medium and high-end electrical and electronic components, and is widely used in electrical and electronic industry. At present, the manufacturing process of polyimide film is to use polyamic acid resin solution as raw material, and salivate on a salivating machine to obtain a self-supporting polyamic acid film, and then undergo heating stretching, high temperature imidization, cooling and setting treatment to obtain a polyimide film. imide film. [0003] With the design requirements of light, thin, short, small and hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C41/24B29C41/34B29C41/46B29L7/00
Inventor 任小龙韩艳霞王林蒋耿杰朱恒斌
Owner GUILIN ELECTRICAL EQUIP SCI RES INST
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