pp鏂欐噳(y墨ng)鐢ㄤ粙绱癸細
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鑱氫笝鐑�( PP) 灞簬绲�(ji茅)鏅舵€ч珮鑱氱墿锛屾湁钁楄唱(zh矛)杓�銆佺劇(w煤)姣掋€佸児(ji脿)寤�銆佽€愰珮婧瓑鍎�(y艒u)榛�(di菐n)锛屽湪閱�(y墨)钘�銆侀鍝�銆佹苯杌婂拰鍖栧伐绛夐牁(l菒ng)鍩熶腑鏈夎憲寤ｆ硾鐨勭敤閫斻€�PP 鏄吀鍨嬬殑鐔卞鎬у鏂欎箣涓€锛岃嚜寰炵背铇悊宸ュぇ瀛�(xu茅)鐨�G锛� Natta 鏁欐巿鐧�(f膩)鐝�(xi脿n)绛夎(gu墨)鑱氫笝鐑互渚�(l谩i)锛屽叏鐞冪殑鑱氫笝鐑伐妤�(y猫)杩呴€熺櫦(f膩)灞�锛岀従(xi脿n)浠婄敘(ch菐n)閲�?j墨)H娆′簬鑱氫箼鐑€傛敞濉戞垚鍨嬭兘澶犱竴娆℃垚鍨嬪褰㈠京(f霉)闆�銆佸昂瀵告垨甯舵湁宓屼欢鐨勫鏂欏埗鍝�锛屾槸濉戞枡鍔犲伐鐨勪富瑕佹柟娉曚箣涓€銆傚鏂欑啍楂旂殑琛ㄨ榛忓害鍙互鎸囧皫(d菐o)鎿畾娉ㄥ宸ヨ棟锛屼篃鑳藉鎸囧皫(d菐o)妯″叿鍨嬭厰瑷�(sh猫)瑷�(j矛)鍜屽劒(y艒u)鍖栨祦閬撴締娉ㄧ郴绲�(t菕ng)銆�
闀�(zh菐ng)鏈熺従(xi脿n)璨�3080澶氬皯閷�
Rheological Properties of Flame Retardent and Antistatic Polypropylene Material
WANG Shuai 1,2, WANG Kejian 1*, MA Yi 2*, ZHANG Yinling 2, LIANG Wenbin 2,WANG Xu 1,SHI Jiao 1,JIANG Zhuoyu 1
锛�1 College of Mechanical and Electrical Engineering, Beijing University of Chemical and Technology锛� Beijing 100029锛�China;2 National Institute of Clean and Low Carbon Energy锛�Beijing 102211锛�China锛�
Abstract: The effects of brominated flame retardant and carbon black-filling on the extrusion distortion of PP melt and dynamic rheological properties were investigated by capillary rheometer and rotational rheometer. It was shown that the more filled resin exhibited higher critical shear rate for extrusion distortion corresponding to wider processing window in low filler content range. In dynamic rheometry, the higher filled resins behavior in shear thinning with higher complex viscosity锛�storage modulus and loss modulus instead of lower loss factor. Quantitative analyses were conducted using entanglement model and Cross model. Filler can absorb polymer chains reducing wall adsorption dropping distortion and further resulting in higher critical shear rate. Particle filled network increases in the plateau modulus and entanglement density shortening relaxation time for quicker recovering according to smaller extrusion swell ratio. Carbon black more than 3.5wt% in composite forms percolation network being characterized by higher zero shear viscosity and longer relaxation time where liquid-solid-like transition occurs. Simultaneously, the surface resistivity decreased obviously. The viscoelastic percolation value consistent with the electrical percolation value approximately.
Keywords: Rheology; polymer; particle; composites; extrusion distortion; percolation network銆�
闀�(zh菐ng)鏈熺従(xi脿n)璨�3080澶氬皯閷�
pp椤嗙矑鍘熸枡鐗归粸(di菐n)锛�
鐗归粸(di菐n)锛氱劇(w煤)姣掋€佺劇(w煤)鍛�锛屽瘑搴﹀皬锛屽挤(qi谩ng)搴�銆佸墰搴�銆佺‖搴﹁€愮啽鎬у潎鍎�(y艒u)浜庝綆澹撹仛涔欑儻,鍙湪100搴﹀乏鍙充娇鐢�.鍏锋湁鑹ソ鐨勯浕鎬ц兘鍜岄珮闋荤禃绶ｆ€т笉鍙楁繒搴﹀奖闊�,浣嗕綆婧檪(sh铆)璁婅剢銆佷笉鑰愮（銆佹槗鑰佸寲.閬╀簬鍒朵綔涓€鑸(j墨)姊伴浂浠�,鑰愯厫铦曢浂浠跺拰绲曠罚闆朵欢 銆傚父瑕嬬殑閰�銆佸牽鏈夋(j墨)婧跺姂灏�(du矛)瀹冨咕涔庝笉璧蜂綔鐢�锛屽彲鐢ㄤ簬椋熷叿銆�
杌婄敤pp椤嗙矑鏀规€т粙绱癸細
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闀�(zh菐ng)鏈熺従(xi脿n)璨�3080澶氬皯閷�
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