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A kind of polyphenylene sulfide composite material and its preparation method and application

A composite material and polyphenylene sulfide technology, which is applied in the field of high-comparison tracking index polyphenylene sulfide reinforced composite materials and their preparation fields, can solve the problems of tracking, poor fluidity of the polyphenylene sulfide composite, etc. The effect of improved processing performance

Active Publication Date: 2020-05-05
SUZHOU NAPO ADVANCED MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] By adding this modifier, the problem of poor fluidity of polyphenylene sulfide compound at processing temperature can be improved, but this patent does not involve solving the problem of tracking
[0010] The patent (CN 102924921A) discloses a polyphenylene sulfide reinforced composite material with a high relative tracking index and its preparation method. Compared with the tracking index of the ether composite material, the tracking index (CTI) of the ether composite material can reach more than 225V, while the melt mass flow rate of the corresponding polyphenylene sulfide reinforced composite material in this patent is lower than 100g / 10min

Method used

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  • A kind of polyphenylene sulfide composite material and its preparation method and application
  • A kind of polyphenylene sulfide composite material and its preparation method and application
  • A kind of polyphenylene sulfide composite material and its preparation method and application

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preparation example Construction

[0060] In addition, the present invention also provides a kind of preparation method of above-mentioned polyphenylene sulfide composite material, and described method comprises the following steps:

[0061] (1) Take polyphenylene sulfide resin, low molecular weight plasticizer, modifier, and conductive filler by weight and mix evenly to obtain premix 1;

[0062] (2) Add premix 1 to the twin-screw extruder, then add glass fiber, and turn on the vacuum exhaust pump after the extrusion is stable, and the molten material strip is drawn from the die of the extruder into the water tank, cooled and solidified , pelletizing to obtain the granular composite material 1;

[0063] (3) drying the granular composite material 1 obtained in step (2);

[0064] (4) Weigh the dried granular composite material 1 and polyamide in proportion by weight and mix them uniformly to obtain a premix 2;

[0065] (5) Add the premix 2 obtained in step (4) to the twin-screw extruder, turn on the vacuum exha...

Embodiment 1

[0074] (1) Take polyphenylene sulfide resin, low molecular weight plasticizer, modifier, conductive filler and mix uniformly according to the weight ratio in Table 1 to obtain premix 1;

[0075] (2) Add the premix 1 into the preheated twin-screw extruder from the main feeding port, and add the long glass fiber from the side feeding port; after the extrusion is stable, turn on the vacuum exhaust pump; melt the material The strip is pulled from the die of the extruder into the water tank to cool and solidify, and then enters the pelletizing device to be cut into granular composite materials 1;

[0076] (3) Dry the granular composite material 1 in a blast drying oven at a temperature of 90-110° C. for 1-2 hours;

[0077] (4) Take the dried granular composite material 1 and polyamide according to the weight ratio in Table 1 and mix them uniformly to obtain the premix 2;

[0078](5) Add the premix 2 from the main feeding port into the twin-screw extruder that has been preheated in...

Embodiment 2

[0097] A polyphenylene sulfide reinforced composite material is prepared in the same manner as in Example 1, and is prepared according to the weight ratio including the raw materials in the following table 5:

[0098] Table five

[0099] components weight(%) polyphenylene sulfide resin 45 Low molecular weight plasticizer (low molecular weight polystyrene) 7 Modifier (compound of formula I) 2 glass fiber 30 Conductive filler (conductive graphite) 1 Polyamide resin (polytoluene adipamide) 15

[0100] The low molecular weight polystyrene in Table 5 has a weight average molecular weight of 60,000-70,000.

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Abstract

A polyphenylene sulfide composite material, a preparation method therefor and an application thereof. The polyphenylene sulfide composite material comprises the following components in percentage by weight: 30-60% of polyphenylene sulfide resin; 30-60% of glass fiber; 0.1-20% of a low-molecular-weight polymer plasticizer; 0.1-20% of a modifier; 0.1-10% of conductive filler; and 1-20% of polyamide. According to the polyphenylene sulfide composite material, by compounding the low-molecular-weight polymer plasticizer and the modifier, the fluidity of the polyphenylene sulfide composite material is improved, and the proof tracking performance of the material is also obviously improved; and moreover, by means of a small quantity of the conductive filler and polyamide resin, the proof tracking performance identical to that of a conventional polyphenylene sulfide composite material with high filling quantity is achieved.

Description

technical field [0001] The invention relates to a high specific tracking index polyphenylene sulfide reinforced composite material and a preparation method thereof, belonging to the field of polymer material modification. Background technique [0002] Polyphenylene sulfide is a thermoplastic crystalline polymer with excellent comprehensive properties. It has good molding processability, chemical resistance, flame retardancy, rigidity and modulus. It has high dimensional stability, excellent electrical properties, and fatigue resistance. High, good creep resistance, easy to form, and has the characteristics of aging resistance, radiation resistance, non-toxic and so on. It has a wide range of uses in the fields of electronics, automobiles, precision machinery, chemicals, home appliances, and aviation, aerospace and defense. In recent years, it has developed into the sixth largest general-purpose engineering plastic in the world. [0003] With the development of high-voltage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L81/02C08L23/06C08L25/06C08L77/02C08L77/06C08K9/06C08K7/14C08K7/06C08K5/13C08K3/04
CPCC08K2201/001C08K2201/003C08L81/02C08L2205/03C08L23/06C08L77/02C08K9/06C08K7/14C08K7/06C08K5/13C08L25/06C08L77/06C08K3/04
Inventor 周玄全谷志杰
Owner SUZHOU NAPO ADVANCED MATERIAL TECH CO LTD
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