MPPO (modified polyphenylene oxide) composite material and preparation method thereof

A composite material and raw material technology, applied in the field of composite materials, can solve the problems of material product fluidity and CTI value not involved, and achieve the effect of delaying polymer oxidation or auto-oxidation process, high CTI value, and improving impact performance

Active Publication Date: 2017-02-01
QINGDAO HAIER NEW MATERIAL R&D CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent application CN 102321359A discloses a modified polyphenylene ether PPO, which records technical solutions for modification in terms of flame retardancy, thermal deformation, impact strength, etc. The thermal deformation temperature reaches 130°C and the impact strength reaches 17KJ / m 2 , but the fluidity and CTI value of the material product are not involved

Method used

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  • MPPO (modified polyphenylene oxide) composite material and preparation method thereof
  • MPPO (modified polyphenylene oxide) composite material and preparation method thereof
  • MPPO (modified polyphenylene oxide) composite material and preparation method thereof

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Embodiment 1

[0028] The preparation of embodiment 1 MPPO composite material

[0029] PPO is compounded by the following two kinds of PPO by weight percentage: PPO, its intrinsic viscosity is 40dl / g, 80%; PPO, its intrinsic viscosity is 45dl / g, 20%. Styrene HIPS has an impact strength of 90J / m and a melt index of 14g / 10min (200°C, 5kg). The flame retardant is resorcinol bis(diphenyl phosphate), the toughening agent is styrene-ethylene-butylene-styrene block copolymer, the antioxidant is antioxidant 1010 and 168, and the sulfide is Zinc sulfide, the oxide is zinc oxide.

[0030] Each raw material component was weighed according to the following weight percentage content: PPO 45kg, polystyrene 25kg, flame retardant 18kg, toughening agent 8kg, antioxidant 1kg, zinc sulfide 1kg, zinc oxide 1kg. Put the weighed raw materials into a mixer, mix at 200r / min for 2min, discharge, and then extrude and granulate with a twin-screw extruder; the processing temperature of the twin-screw extruder is 220-...

Embodiment 2

[0031] The preparation of embodiment 2 MPPO composite material

[0032] PPO is compounded by the following two kinds of PPO by weight percentage: PPO, whose intrinsic viscosity is 40dl / g, 70%; PPO, whose intrinsic viscosity is 45dl / g, 30%. Styrene HIPS has an impact strength of 110J / m and a melt index of 11g / 10min (200°C, 5kg). The flame retardant is polyaryl phosphate, the toughening agent is styrene-ethylene-butylene-styrene block copolymer, and the antioxidants are antioxidants 1076 and 168.

[0033] Each raw material component was weighed according to the following weight percentage content: PPO 53kg, polystyrene 20kg, flame retardant 15kg, toughening agent 10kg, antioxidant 1kg. Put the weighed raw materials into a mixer, mix at 300r / min for 2min, discharge, and then extrude and granulate with a twin-screw extruder; the processing temperature of the twin-screw extruder is 220-250°C, The extruder includes seven temperature zones, one of which is 230°C, the second section...

Embodiment 3

[0034] The preparation of embodiment 3 MPPO composite material

[0035] The intrinsic viscosity of PPO is 40 dl / g. Polystyrene is a high-flow high-impact polystyrene HIPS, with an impact strength of 100J / m and a melt index of 12g / 10min (200°C, 5kg). The flame retardant is triphenyl phosphate, the toughening agent is styrene-butadiene-styrene block copolymer, and the antioxidants are antioxidants 1076 and 168.

[0036] Each raw material component was weighed according to the following weight percentage content: PPO 65kg, polystyrene 22kg, flame retardant 10kg, toughening agent 3kg, antioxidant 0.2kg. Put the weighed raw materials into a mixer, mix at 200r / min for 5min, discharge, and then extrude and granulate with a twin-screw extruder; the processing temperature of the twin-screw extruder is 220-250°C, The extruder includes seven temperature zones, one of which is 225°C, the second stage is 245°C, the third stage is 255°C, the fourth stage is 255°C, the fifth stage is 255°C...

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Abstract

The invention discloses an MPPO (modified polyphenylene oxide) composite material which comprises, by weight, 45-70 parts of PPO (polyphenylene oxide), 10-25 parts of polystyrene, 3-18 parts of flame retardants, 2-10 parts of toughening agents, 0.1-1 part of antioxidant, 0.1-1 part of sulfide and 0.1-1 part of oxide. The viscosity of the PPO is 40-45dl / g. The invention further provides a preparation method of an MPPO material which is high in impact strength, heat resistance and CTI (comparative tracking index) and good in halogen-free flame retardant effect. The composite material can pass a 125 DEG C ball indentation test, is uniform in comprehensive performance and can be widely applicable to the electronic and electrical appliance fields such as shells of electronic products and glue filling boxes of computer control systems.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to an MPPO composite material and a preparation method thereof. Background technique [0002] Polyphenylene ether (English name: Polyphenylene oxiole, referred to as PPO) is one of the world's five general-purpose engineering plastics. It has the advantages of high rigidity, high heat resistance, flame retardant, high strength, wear resistance, non-toxicity, and pollution resistance. The dielectric constant and dielectric loss of PPO are one of the smallest varieties among engineering plastics, and they are hardly affected by temperature and humidity. The disadvantages are poor solvent resistance, easy stress cracking of products, low notched impact strength, high melt viscosity, and extremely poor processability. Pure PPO resin cannot be molded by injection. The PPO / PS alloy is prepared by blending PPO and polystyrene (PS) in a wide composition range, that is, MPPO. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L51/04C08L53/02C08K13/02C08K5/523C08K5/521C08K5/134C08K5/526C08K3/30C08K3/22B29C47/38B29C48/395
CPCB29C48/395C08L71/12C08L2201/02C08L2201/08C08L2203/20C08L2205/03C08L25/06C08L53/025C08K13/02C08K5/523C08K5/1345C08K5/526C08K2003/3009C08K2003/2296C08L53/02C08K5/521
Inventor 周洋吉家绚李彬刘机关张秀文谭伟宏崔青涛李伟
Owner QINGDAO HAIER NEW MATERIAL R&D CO LTD
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