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Production method of polyphenylsulphone physical foaming sheet and production system thereof

A polyphenylene sulfone and physical foaming technology is applied in the field of polymer material processing to achieve the effects of fast heat conduction, high efficiency and excellent high temperature barrier properties

Pending Publication Date: 2019-05-17
南京法宁格节能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far there is no report on polyphenylsulfone foam

Method used

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  • Production method of polyphenylsulphone physical foaming sheet and production system thereof
  • Production method of polyphenylsulphone physical foaming sheet and production system thereof
  • Production method of polyphenylsulphone physical foaming sheet and production system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] A kind of production method step of polyphenylene sulfone physical foam sheet is as follows:

[0121] 1. Add 88kg of polyphenylene sulfone (PPSU) resin and 0.1kg of nucleating agent according to the weight ratio, and add them to the twin-screw extruder 2 through the feeder (feeding system) 1 for shearing and mixing, In the fourth section of the barrel of the twin-screw extruder 2, the metering pump of the foaming agent injection device 3 is used to inject 0.1 kg of liquid carbon dioxide foaming agent, carbon dioxide and PPSU resin nucleating agent, and are fully mixed through the twin-screw extruder to form Mixed melt, the temperature of the mixed melt is 250 degrees, the mixed melt (melt) is filtered by the screen changer 4 to filter the impurities in the mixed melt, and the heat exchanger 5 is used to reduce the temperature of the mixed melt, so that the mixed melt The temperature evenly drops to about 220 degrees, and is extruded through the extrusion die 6 extrusion...

Embodiment 2

[0126] A kind of production method step of polyphenylene sulfone physical foam sheet is as follows:

[0127] 1. Add 100kg of polyphenylene sulfone (PPSU) resin and 2kg of nucleating agent according to the weight ratio, and add them to the twin-screw extruder 2 through the feeder (feeding system) 1 for shearing and mixing. In the fourth section of the barrel of the twin-screw extruder 2, the metering pump of the blowing agent injection device 3 is used to inject 10 kg of liquid carbon dioxide foaming agent, carbon dioxide and PPSU resin nucleating agent, and are fully mixed through the twin-screw extruder to form a mixed melt. body, the temperature of the mixed melt is 260 degrees, the mixed melt (melt) is filtered by the screen changer 4 to filter the impurities in the mixed melt, and the heat exchanger 5 is used to reduce the temperature of the mixed melt, so that the temperature of the mixed melt is uniform Drop to about 220 degrees, and extrude through extrusion die head 6 ...

Embodiment 3

[0132] A kind of production method step of polyphenylene sulfone physical foam sheet is as follows:

[0133] 1. Add 95 kg of polyphenylene sulfone (PPSU) resin and 1 kg of nucleating agent according to the proportion by weight, and add them to the twin-screw extruder 2 through the feeder (feeding system) 1 for shearing and mixing. In the fourth section of the barrel of the twin-screw extruder 2, the metering pump of the foaming agent injection device 3 is used to inject 5 kg of liquid carbon dioxide foaming agent, carbon dioxide and PPSU resin nucleating agent, and are fully mixed through the twin-screw extruder to form a mixed melt. body, the temperature of the mixed melt is 255 degrees, the mixed melt (melt) is filtered by the screen changer 4 to filter the impurities in the mixed melt, and the heat exchanger 5 is used to reduce the temperature of the mixed melt, so that the temperature of the mixed melt is uniform Drop to about 220 degrees, and extrude through extrusion die...

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Abstract

The invention relates to the field of high molecular material machining, in particular to a production method of a polyphenylsulphone (PPSU) physical foaming sheet and a production system thereof. According to the production method of the polyphenylsulphone (PPSU) physical foaming sheet, PPSU resin, a nucleating agent and a foaming agent are adopted, mixed, heated through a plastic extruding machine, subjected to fusion mixing and physical foaming, then extruded through a die head, leveled through a leveling machine, subjected to roller pressing conveying of a pressing roller machine, cooled and cut to be manufactured into the polyphenylsulphone (PPSU) physical foaming sheet. The PPSU resin, the nucleating agent and the foaming agent are contained, and the physical foaming sheet comprises,by weight part ratio, 88-100 of PPSU resin, 0.1-2 of the nucleating agent and 0.1-10 of the foaming agent. The production system of the polyphenylsulphone (PPSU) physical foaming sheet comprises a feeding machine, a double-screw plastic extruding machine, a foaming agent injecting device, a net replacing device, a heat exchanger, an extruding die head, a leveling machine, a pressing roller machine, a cooling device and a cutting machine.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to a production method and a production system of polyphenylene sulfone (PPSU) physically foamed sheets. technical background [0002] Polyphenylene sulfone is produced by the reaction of p-polyphenylene sulfide and peracetic acid. It is an amorphous polymer compound containing sulfone groups and aromatic nuclei in the main chain of the molecule. It is one of the organic polymer materials with the best comprehensive properties. It has the characteristics of good heat resistance, radiation resistance, corrosion resistance, good mechanical properties, electrical properties and flame retardant properties, and has been widely used in aerospace, military and electronics fields. So far there is no report on polyphenylsulfone foam. Contents of the invention [0003] Purpose of the invention In view of the deficiencies in the prior art, the present invention provides a producti...

Claims

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Application Information

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IPC IPC(8): B29C44/50B29C44/56B29C44/34B29C48/285C08L81/06C08K3/34C08K3/36C08J9/12
Inventor 郭鑫齐许鹏
Owner 南京法宁格节能科技股份有限公司
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