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A kind of manufacturing process of polyphenylene sulfide film

A technology of polyphenylene sulfide film and manufacturing process, which is applied in the field of polyphenylene sulfide film manufacturing process, and can solve problems such as complex film production process and process conditions

Active Publication Date: 2021-08-17
陈逊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From the patent, it is found that according to the characteristics of polyphenylene sulfide resin, as well as the film production process and process conditions, it is too complicated

Method used

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  • A kind of manufacturing process of polyphenylene sulfide film

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Effect test

Embodiment 1

[0046] First, sodium hydrosulfide and sodium hydroxide are added to N-methyl-2-pyrrolidone solvent, and then oxygen-free deionized water of 9 mol / mol NaHS is added to make NaHS in the system: NaOH: NMP: H 2 The molar ratio of O is 1.0:1.16:1.5:10.0; heated to 148°C at a heating rate of 2.0°C / min, kept at this temperature for 1.5h, and then heated to 183°C at a heating rate of 1.0°C / min. Insulate for 1.5 hours, then raise the temperature to 213°C. Under this temperature condition, keep hold for 8 minutes, and then drop the temperature to 203°C. After the system materials are processed by such a treatment process, the Na in the system 2 S:NMP:H 2 The mol ratio of O is 1.0: 0.6: 1.1; Add p-dichlorobenzene, hexachlorobenzene raw material and NMP solvent again, make the Na of the system 2 S:p-DCB:Hexachlorobenzene:NMP:H 2 The molar ratio of O is 1.0: 0.98: 0.13: 3.3: 1.1; then the temperature of the system is raised to 218°C. Under this temperature condition, after 4.5h of heat p...

Embodiment 2

[0051] First, sodium hydrosulfide and sodium hydroxide are added to the N-methyl-2-pyrrolidone solvent, and then 11mol / mol NaHS oxygen-free deionized water is added to make the NaHS in the system: NaOH: NMP: H 2 The molar ratio of O is 1.0:1.19:1.8:12.0; heated to 158°C at a heating rate of 3.0°C / min, kept at this temperature for 1.0h, and then heated to 188°C at a heating rate of 2.0°C / min. Keep warm for 1.0h, and then raise the temperature to 233°C. Under this temperature condition, keep warm for 3 minutes, and then drop the temperature to 206°C. After the system materials are processed by such a treatment process, the Na in the system 2 S:NMP:H 2 The mol ratio of O is 1.0: 0.9: 1.8; Add p-dichlorobenzene, hexachlorobenzene raw material and NMP solvent again, make the Na of system 2 S:p-DCB:Hexachlorobenzene:NMP:H 2 The molar ratio of O is 1.0:0.99:0.18:3.3~3.8:1.8; then the temperature of the system is raised to 222°C. Under this temperature condition, after 3.0 hours of ...

Embodiment 3

[0061] First, sodium hydrosulfide and sodium hydroxide are added to the N-methyl-2-pyrrolidone solvent, and then 10mol / mol NaHS oxygen-free deionized water is added to make the NaHS in the system: NaOH: NMP: H 2 The molar ratio of O is 1.0:1.17:1.6:11.0; heated to 151°C at a heating rate of 2.3°C / min, kept at this temperature for 1.2h, and then heated to 184°C at a heating rate of 1.3°C / min. Insulate for 1.4 hours, then raise the temperature to 225°C. Under this temperature condition, keep hold for 6 minutes, and then drop the temperature to 204°C. After the system materials are processed by such a treatment process, the Na in the system 2 S:NMP:H 2 The mol ratio of O is 1.0: 0.7: 1.4; Add p-dichlorobenzene, hexachlorobenzene raw material and NMP solvent again, make the Na of the system 2 S:p-DCB:Hexachlorobenzene:NMP:H 2 The molar ratio of O is 1.0: 0.983: 0.143: 3.5: 1.4; then the temperature of the system is raised to 220°C. Under this temperature condition, after 3.5 hou...

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Abstract

The invention discloses a manufacturing process of a polyphenylene sulfide film, which is characterized by using sodium hydrosulfide, sodium hydroxide, p-dichlorobenzene and hexachlorobenzene as raw materials, and N-methyl-2-pyrrolidone as a solvent, Polyphenylene sulfide resin is polycondensed under certain conditions; the polyphenylene sulfide resin is purified - washing - drying - extrusion granulation - devolatilization drying - melt extrusion - melt metering - melt forced filtration - T type Die-casting roll-air knife, vacuum channel-cooling roll-thickness gauge-electrostatic attachment-winding into attached polyphenylene sulfide film roll. The polyphenylene sulfide film obtained by the invention can be widely used in electronic appliances, military industry, aerospace, machinery, chemical industry, food packaging and other industries.

Description

technical field [0001] The invention belongs to polymer products and relates to the field of film manufacturing, in particular to a manufacturing process of polyphenylene sulfide film. Background technique [0002] With the advancement of science and technology and the development of society, people are developing and applying new technologies and materials more and more widely, and the requirements for electronic and electrical insulation materials are getting higher and higher, especially those with high temperature resistance and hydrolysis resistance. Electric insulating material, new material with very low water absorption and moisture absorption at the same time. [0003] In recent years, electrical insulating materials for electric motors, capacitors, and lithium-ion batteries are gradually required to have properties such as heat resistance at high temperatures, hydrolysis resistance, low moisture absorption, high electrical insulation, and chemical corrosion resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L81/02C08J5/18C08G75/0209C08G75/0254C08G75/0281
CPCC08G75/0209C08G75/0254C08G75/0281C08J5/18C08J2381/02
Inventor 陈逊
Owner 陈逊
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