Conductive MPPO (Modified Polyphenylene Oxide) engineering material with excellent comprehensive properties and preparation method thereof
A technology with comprehensive performance and engineering materials, applied in textiles and papermaking, fiber treatment, plant fibers, etc., can solve the problems of dust drop, high cost and high price of composite materials, achieve good market application prospects, excellent mechanical properties, The effect of low carbon black addition
Inactive Publication Date: 2019-01-18
SHENZHEN FUHENG PLASTICS PIGMENT
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Problems solved by technology
The current traditional method is to add conductive fillers such as carbon black, carbon fiber, carbon nanotubes, and graphene to the matrix resin, but the general amount of carbon black added is 30%, and there is a phenomenon of dusting, and the amount of carbon fiber added is about 15%, but the price High, the cost of preparing composite materials is high, the addition of carbon nanotubes and graphene is low (2-5%), but the price is high, and it is easy to agglomerate, and processing is inconvenient
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preparation example Construction
[0033] A preparation method of conductive MPPO engineering material with excellent comprehensive performance, including the following steps:
[0034] (1) Soak the sisal fiber in a 10% NaOH solution for 24 hours, and then repeatedly wash out the remaining alkaline solution with clear water, and titrate with an acetic acid solution to neutrality. Then soak the sisal fiber in clean water for 8 hours to make it fully absorb water. Finally, the fiber is placed in a steam explosion machine to blast the fiber into a cotton-like shape, and finally the cotton-like fiber is placed in a dehumidifying drying box for drying at 65°C for 8 hours;
[0035] (2) Place the conductive carbon black, sisal fiber silicon and alkane coupling agent in a high-speed mixer at a ratio of 50:50:2. The sequence is that the silane coupling agent is mixed with the sisal fiber at high speed for 5 minutes. After the hemp fiber surface is completely wetted, add it and then add it to the conductive carbon black high-...
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Abstract
The invention provides a conductive MPPO (Modified Polyphenylene Oxide) engineering material with excellent comprehensive properties. The conductive MPPO engineering material is characterized by comprising the following components in percentage by mass: 35-50% of PPO resin, 10-15% of HIPS (High Impact Polystyrene) resin, 30-45% of a self-made conductive fiber, 4-6% of a toughening agent, 0.1-0.3%of a coupling agent, 0.2-0.4% of an antioxidant and 0.4-0.8% of a lubricant. The conductive MPPO engineering material is excellent in mechanical property, good in anti-electrostatic resistance, low incarbon black addition amount when being compared with a conventional process and relatively low in cost, and has a very good market application prospect. The invention further provides a preparationmethod of the conductive MPPO engineering material with excellent comprehensive properties. The preparation method is simple to operate, easy in condition control, low in cost, low in equipment requirements and applicable to industrial production.
Description
[Technical Field] [0001] The invention relates to the technical field of engineering plastic modification, in particular to a conductive MPPO engineering material with excellent comprehensive performance and a preparation method thereof. [Background technique] [0002] PPO is non-toxic, transparent, low relative density, and has excellent mechanical strength, stress relaxation resistance, creep resistance, heat resistance, water resistance, water vapor resistance, and dimensional stability. It has good electrical properties in a wide temperature and frequency range. The main disadvantages are poor melt fluidity and difficult processing and molding. Most practical applications are MPPO (PPO blends or alloys). If PPO is modified with HIPS, the processing performance can be greatly improved. , Improve stress crack resistance and impact performance, reduce costs, but heat resistance and gloss are slightly reduced. PPO / HIPS alloy has good electrical insulation like most polymer mater...
Claims
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IPC IPC(8): C08L71/12C08L51/04C08L1/02C08K5/134C08K5/526D06M11/74D06M13/513D06M11/38D06M101/06
CPCC08K2201/001C08K2201/011C08L71/12C08L2201/04C08L2205/03C08L2205/16D06M11/38D06M11/74D06M13/513D06M2101/06C08L51/04C08L1/02C08K5/1345C08K5/526
Inventor 刘明谢飞张峰
Owner SHENZHEN FUHENG PLASTICS PIGMENT