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Polyphenylene sulfide resin composite material and preparation method thereof

A technology of polyphenylene sulfide resin and composite material, which is applied in the field of polyphenylene sulfide resin composite material and its preparation, polyphenylene sulfide resin pellet and its manufacturing field, can solve the complex preparation process, slow crystallization speed, color change, etc. problem, to achieve the effect of simple preparation method, low cost and simple composition

Active Publication Date: 2020-08-25
四川明道和化学新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] In summary, the modified material of PPS either has complex components and high cost, or its preparation process is complicated, and the crystallization speed is slow, and because PPS is usually used as a modified material, the modified material is colored during processing In addition, due to the sulfur in the PPS molecule, it is not resistant to oxygen, although the original powder non-crosslinked resin is white, it is prone to color changes during processing

Method used

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  • Polyphenylene sulfide resin composite material and preparation method thereof
  • Polyphenylene sulfide resin composite material and preparation method thereof
  • Polyphenylene sulfide resin composite material and preparation method thereof

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preparation example Construction

[0042] The preparation method of the polyphenylene sulfide resin composite material of the present invention comprises the following steps: after mixing polyphenylene sulfide, phosphite, zinc carbonate and silane coupling agent, twin-screw extruding and granulating, the obtained strip is water-cooled, air-dried, pelletized and sieved to obtain polyphenylene sulfide resin composite material particles.

[0043] Wherein, twin-screw extruders commonly used in the art can be used for twin-screw extrusion granulation.

Embodiment 1

[0052] Take 100 parts by weight of the PPS resin synthesized above, 0.3 parts by weight of zinc carbonate, 0.45 parts by weight of triphenyl phosphite, and 2 parts by weight of silane coupling agent KH550, put them into a high-speed mixer and mix them evenly, and use TE -50 twin-screw extruder for granulation, the strips are water-cooled, air-dried, pelletized, and sieved to obtain Φ3×3 cylindrical or flat cylindrical non-adhesive particles, that is, polyphenylene sulfide resin composite material particles.

[0053] The extrusion process of TE-50 twin-screw is as follows: first stage 200°C; second stage 280°C; third stage 300°C; fourth stage 300°C; fifth stage 300°C; head 280°C; ;Feeding speed 30HZ; Vacuum degree -0.85MPa;

[0054] The obtained particles were subjected to differential scanning calorimetry (DSC) analysis and thermogravimetric analysis. The crystallization temperature was 225.9°C, and the DSC spectrum is shown in figure 1 , and other test results are shown in T...

Embodiment 2

[0056] Take 100 parts by weight of the PPS resin synthesized above, 0.5 parts by weight of zinc carbonate, 5 parts by weight of triphenyl phosphite, and 1 part by weight of silane coupling agent KH550, put them into a high-speed mixer and mix them evenly, and use TE -50 twin-screw extruder for granulation, the strips are water-cooled, air-dried, pelletized, and sieved to obtain Φ3×3 cylindrical or flat cylindrical non-adhesive particles, that is, polyphenylene sulfide resin composite material particles.

[0057] The extrusion process of TE-50 twin-screw is as follows: first stage 200°C; second stage 280°C; third stage 300°C; fourth stage 300°C; fifth stage 300°C; head 280°C; ;Feeding speed 30HZ; Vacuum degree -0.85MPa;

[0058] The obtained particles were subjected to DSC and thermogravimetric analysis, the crystallization temperature was 213.65°C, and the DSC spectrum is shown in figure 2 , and other test results are shown in Table 1.

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Abstract

The invention relates to a polyphenylene sulfide resin composite material and a preparation method thereof, and belongs to the technical field of polymer composite materials. The technical problem tobe solved by the invention is to provide a polyphenylene sulfide resin composite material. The composite material is composed of the following components in parts by weight: 100 parts of polyphenylenesulfide, 0.4-20 parts of phosphite ester, 0-3 parts of zinc carbonate, and 0-20 parts of a silane coupling agent. The phosphite, the zinc carbonate and the silane coupling agent are added into the polyphenylene sulfide, the components cooperate with one another and achieve a synergistic effect, the crystallization of the polyphenylene sulfide resin composite material is accelerated, the polyphenylene sulfide resin composite material has low glass transition temperature and high crystallization speed, the mold temperature during molding is reduced, and the composite material further has advantages of excellent coloring property, light color, good thermal stability and good crystallization property. The composite material has the advantages of simple components, simple preparation method, low process control difficulty and low cost, and is suitable for industrial large-scale production.

Description

technical field [0001] The invention relates to a polyphenylene sulfide resin composite material and a preparation method thereof, in particular to a polyphenylene sulfide resin pellet with excellent crystallinity and good stability and a production method thereof, belonging to the technical field of polymer composite materials. Background technique [0002] Polyphenylene sulfide (PPS) is a Chemical structure of crystalline thermoplastic polymers. The melting point of PPS is 277-282°C, and the glass transition temperature is 85-93°C. PPS is recognized as an engineering plastic with excellent properties such as heat resistance, chemical resistance, flame resistance and dimensional stability. It is widely used in the fields of electronics, electrical components, automotive parts, and thin films. [0003] In recent years, there has been an increasing demand for thermoplastic resins with high flame resistance and chemical resistance as materials for electrical and electronic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08K5/526C08K5/544C08K3/26
CPCC08K5/526C08K5/544C08K3/26C08L2201/08C08L81/02
Inventor 李勇梁平
Owner 四川明道和化学新材料有限公司