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| STUDY OF NANO-CONCENTRATES IMPROVEMENT IN WATER RESISTANCE OF APP/PER/EN COATING |
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| 中科院金属腐蚀与防护研究所 |
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Abstract Surface of nanometer silicon dioxide and magnesium hydroxide was modified by Sol sperse17000 dispersing agent.Nano-concentrates were gotten by mixing modified na noparticles with resin through ball milling and supersonic wave,then flame retar dant nano-coatings with different content of nano-concentrates were prepared.Dis persion morphology and stability principle of nanoparticles were analyzed by the use of transmittance electron microscopy (TEM) and Fourier transform infrared s pectroscopy(FT-IR).Morphology,molecule structure,water transport behavior and th ermal degradation of the flame retardant coatings were studied by use of SEM,FT- IR,curve of weight loss,DTA.It is indicated that 4% nano-concentrates can enhanc e water resistance and do not harm thermal degradation and flame retardant prope rty.
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Received: 30 December 2004
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