Special PPS (polyphenylene sulfide) plastic having good bonding property with epoxy adhesive and preparation method of PPS plastic

An epoxy glue and special technology, applied in the field of special plastics, can solve the problems that PPS resin cannot be bonded with epoxy glue, cannot meet the strong bonding force, insufficient insulation and sealing performance, etc., so as to meet the requirements of the glue filling process and improve the mechanical properties. and heat resistance, the effect of improving polarity

Inactive Publication Date: 2018-05-29
SHANGHAI PRET COMPOSITES +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] (1) The operating viscosity is high, which is somewhat inconvenient in construction
[0013] (2) The impact strength is low and brittle
[0014] (3) The peel strength is low, and there are few resins with good adhesion to epoxy resins. Commonly used resins include polyphenylene sulfide (PPS), polybutylene terephthalate (PBT) and polyethylene terephthalate. After glycol ester (PET), nylon (polyamide 6, polyamide 66, high-temperature nylon PPA, etc.) are potted and cured, there is a small gap between the resi

Method used

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  • Special PPS (polyphenylene sulfide) plastic having good bonding property with epoxy adhesive and preparation method of PPS plastic
  • Special PPS (polyphenylene sulfide) plastic having good bonding property with epoxy adhesive and preparation method of PPS plastic
  • Special PPS (polyphenylene sulfide) plastic having good bonding property with epoxy adhesive and preparation method of PPS plastic

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Embodiment 1: The PPS special plastic with good bonding ability with epoxy resin used in the potting technology of this embodiment, in parts by mass, includes the following components:

[0055] 50 parts of PPS resin, 3 parts of toughening agent, 0.3 parts of antioxidant, 0.3 part of heat stabilizer, 2 parts of silane coupling agent, 1 part of coloring agent, 45 parts of glass fiber.

[0056] Among them, the toughening agent is styrene thermoplastic elastomer, and the antioxidant is multi-element hindered phenol and phosphite.

[0057] The preparation method of the above-mentioned PPS special plastic with good combination with epoxy resin is as follows:

[0058] In terms of parts by mass, premix 50 parts of PPS resin, 3 parts of toughening agent, 0.3 parts of antioxidant, 0.3 parts of heat stabilizer, 2 parts of silane coupling agent and 1 part of coloring agent to obtain a mixture uniformly. Put 45 parts of glass fiber and glass fiber into the extruder for melt blending and ext...

Example Embodiment

[0060] Embodiment 2: The PPS special plastic with good adhesion to epoxy resin used in the potting technology of this embodiment, in parts by mass, includes the following components:

[0061] 50 parts of PPS resin, 3 parts of toughening agent, 0.3 parts of antioxidant, 0.3 part of heat stabilizer, 2 parts of silane coupling agent, 1 part of coloring agent, 45 parts of glass fiber.

[0062] Among them, the toughening agent is styrene thermoplastic elastomer and GMA, GMA is 20% of the total mass of the toughening agent, and the antioxidant is a multi-element hindered phenol and phosphite.

[0063] The preparation method of the PPS special plastic with good adhesion to the epoxy resin used in the potting technology in this embodiment is the same as that of the first embodiment.

Example Embodiment

[0064] Embodiment 3: The PPS special plastic with good adhesion to epoxy resin used in the potting technology of this embodiment, in parts by mass, includes the following components:

[0065] 50 parts of PPS resin, 3 parts of toughening agent, 0.3 parts of antioxidant, 0.3 part of heat stabilizer, 2 parts of silane coupling agent, 1 part of coloring agent, 45 parts of glass fiber.

[0066] Among them, the toughening agent is styrene thermoplastic elastomer and GMA, GMA is 50% of the total mass of the toughening agent, and the antioxidant is multi-element hindered phenol and phosphite.

[0067] The preparation method of the PPS special plastic used in the glue filling technology in this embodiment is the same as that of the embodiment 1.

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Abstract

The invention discloses special PPS (polyphenylene sulfide) plastic having good bonding property with an epoxy adhesive and a preparation method of the PPS plastic. The PPS plastic is prepared from the following raw materials in parts by mass: 50-80 parts of PPS resin as a main material as well as the following auxiliary materials: 10-50 parts of glass fiber, 1-5 parts of a silane coupling agent,3-15 parts of a flexibilizer, 0.3-3 parts of an antioxidant and 0.3-3 parts of a heat stabilizer. The special PPS plastic has the beneficial effects that the components are optimized, wherein a flexibilizer is optionally selected from anhydride modified ethylene thermoplastic elastomers, styrene thermoplastic elastomers and unsaturated epoxy copolymers, toughness and impact strength can be improved, polarity of the special PPS plastic and wettability of the special PPS plastic to the epoxy adhesive can also be improved, and accordingly, adhesion between the special PPS plastic and epoxy resinis improved, and requirements of the glue filling process are met; the content of the components is optimized, and mechanical properties and heat resistance of the special PPS plastic are improved.

Description

technical field [0001] The invention relates to the technical field of special plastics, in particular to a PPS special plastic with good bonding property with epoxy resin and a preparation method thereof. Background technique [0002] Insulation potting technology is to mechanically or manually pour the liquid compound into the device equipped with electronic components and circuits, and solidify it into a thermosetting polymer insulation material with excellent performance under normal temperature or heating conditions. [0003] Strengthen the integrity of electronic devices, improve the resistance to external shocks and vibrations; improve the insulation between internal components and lines, which is conducive to the miniaturization and lightweight of devices; avoid direct exposure of components and lines, improve the waterproof and moisture-proof performance of devices, and Improve performance and stability parameters. [0004] Because of the superior performance of ep...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08L51/00C08L53/02C08K13/04C08K7/14
Inventor 周良霄肖浩张中伟蔡青周文
Owner SHANGHAI PRET COMPOSITES
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