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sltmac

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2Â¥2011-06-04 07:53:22
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sltmac

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scuccc(½ð±Ò+50, ·­ÒëEPI+1): ÉñËÙ°¡£¬Ð»Ð»ÁË 2011-06-04 10:23:13
ÓÉÓÚÄÉÃ×SiO2Á£×Ó×ÔÉíµÄÌØµãÔì³ÉÆäÔÚ¾ÛºÏÎï»ùÌåÖУ¬ÈÝÒ×·¢ÉúÍžÛÏÖÏ󣬶Ը´ºÏ²ÄÁÏÔì³É½á¹¹È±ÏÝ£¬Ó°Ï츴ºÏ²ÄÁϵÄÐÔÄÜ£¬ËùÒÔÒªÇó¶ÔÄÉÃ×SiO2Á£×ӵıíÃæ½øÐиÄÐÔ¡£Agglomeration of nano-SiO2 in poly-substrate will be induced due to the characteristic of SiO2 itself and the the property of composites will also be affected by the agglomeration, so it¡¯s necessary to modify the surface of nano-SiO2.
±¾ÊµÑé²ÉÓþ²µçÎü¸½×÷Ó㬽«Ñõ»¯Ê¯Ä«(GO)°ü¸²ÔÚSiO2Á£×Ó±íÃæ£¬ÖƵÃÄÉÃ×SiO2-GOÁ£×Ó¡£
SiO2-GO nanoparticles were fabricated by GO coated on the surface of nano-SiO2 based on the electrostatic absorption effect in our experiment.
ͨ¹ýÈÜÒº·¨ÖƱ¸ÁËSiO2/PVDFºÍSiO2-GO/PVDFÁ½ÖÖÄÉÃ׸´ºÏ²ÄÁÏ¡£Ö÷ÒªÑо¿ÁËÉÏÊöÁ½ÖÖÄÉÃ׸´ºÏ²ÄÁϵÄÁ¦Ñ§ÐÔÄÜ£¬ÒÔ¼°SiO2ºÍSiO2-GOÁ½ÖÖÌîÁÏÓëPVDF»ùÌåµÄ½çÃæ×÷ÓÃ
SiO2/PVDF and SiO2-GO/PVDF nano composites were prepared via sol-gel method, the mechanical performance of nano composites and interfacial effect between SiO2, SiO2-GO and PVDF substrate were also investigated.
Ñо¿½á¹û±íÃ÷£¬Ñõ»¯Ê¯Ä«(GO)¿ÉÒԽϺõİü¸²ÔÚSiO2?±íÃæ£¬½«ÆäÌî³äµ½PVDF»ùÌåÖУ¬¿ÉÒÔÓÐЧµØÌá¸ßSiO2-GO/PVDF¸´ºÏ²ÄÁϵÄÁ¦Ñ§ÐÔÄÜ£¬²¢ÇÒÄܹ»ÔöÇ¿ÌîÁÏÁ£×ÓÓëPVDFµÄÖ®¼äµÄ½çÃæÐ§Ó¦¡£
The results indicated that GO could well be coated on the surface of SiO2, meanwhile, the mechanical performance of SiO2-GO/PVD composite would  be enhanced and the interfacial effect between filler particle and PVDF would also be improved by padding it into PVDF substrate.
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