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pp鏂欐噳(y墨ng)鐢ㄤ粙绱癸細

鑱氫笝鐑鏂欑殑鏀规€у彲鍒嗙偤鍖栧(xu茅)鏀规€у拰鐗╃悊鏀规€у叐绋柟娉�銆傚寲瀛�(xu茅)鏀规€т富瑕侀€氶亷鍏辫仛銆佹帴鏋�銆佷氦鑱�(li谩n)绛夋柟寮�, 鏀硅畩鑱氫笝鐑殑鍒嗗瓙绲�(ji茅)妲�(g貌u)浠ラ仈鍒版敼鎬х殑鐩殑; 鐗╃悊鏀规€у墖鍦ㄦ暣鍊嬫敼鎬ч亷绋嬩腑涓嶇櫦(f膩)鐢熷寲瀛�(xu茅)鍙嶆噳(y墨ng), 鍦�PP鍩洪珨涓姞鍏ュ叾浠栫劇姗熸潗鏂�銆佹湁姗熸潗鏂欍€佸叾浠栧鏂�銆佹鑶�銆佺啽濉戞€у綀鎬ч珨鎴栨湁鐗规畩鍔熻兘鐨勬坊鍔犲姪鍔戠瓑, 缍�(j墨ng)閬庡叡娣�銆佸寮锋垨濉厖绛夋墜娈靛埗寰楀叿鏈夊劒(y艒u)鐣版€ц兘鐨�PP寰�(f霉)鍚堟潗鏂欍€�

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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�銆佺劇姣掋€佸児寤�銆佽€愰珮婧瓑鍎�(y艒u)榛�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�銆�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互渚嗭紝鍏ㄧ悆鐨勮仛涓欑儻宸ユキ(y猫)杩呴€熺櫦(f膩)灞�锛岀従(xi脿n)浠婄敘(ch菐n)閲忓儏娆′簬鑱氫箼鐑�銆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鏂欏埗鍝侊紝鏄鏂欏姞宸ョ殑涓昏鏂规硶涔嬩竴銆傚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)瑷堝拰鍎�(y艒u)鍖栨祦閬撴締娉ㄧ郴绲�(t菕ng)銆�

绌�(w臎n)瀹氫緵鎳�(y墨ng)2040鎿犲嚭绱�

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 b 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 bs 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 approximaby.

Keywords: Rheology; polymer; particle; composites; extrusion distortion; percolation network銆�

绌�(w臎n)瀹氫緵鎳�(y墨ng)2040鎿犲嚭绱�

pp椤嗙矑鍘熸枡鐗归粸锛�

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杌婄敤pp椤嗙矑鏀规€т粙绱癸細

鏀规€�PP 鐨勬埃鍛崇祫鎴愬強褰㈡垚锛氭敼鎬�PP 鏉愭枡鐨勬埃鍛充富瑕佷締婧愪簬鏉愭枡鐨勬彯鐧�(f膩)鎬ф湁姗熷寲鍚堢墿(VOC)锛屽叾绲勬垚鍙互閫氶亷姘ｇ浉鑹茶瓬鈥� 鏈夋璩�(zh矛)璀滆伅(li谩n)鐢ㄥ剙銆侀爞绌烘硶绛夋柟娉曢€茶鍒嗘瀽銆傜緟蹇犲瘜閫氶亷姘ｇ浉鑹茶瓬鈥撹唱(zh矛)璀滃皪杌婄敤PP 寰�(f霉)鍚堟潗鏂欐埃鍛抽€茶浜嗗垎鏋愮爺绌�銆傜祼(ji茅)鏋滅櫦(f膩)鐝�(xi脿n)锛�PP 鏉愭枡鐨勬彯鐧�(f膩)鎬ф埃楂旂祫鍒嗘湁杩�20 绋�锛屼富瑕佺敱缇板熀鍖栧悎鐗╄垏鐑撮鍖栧悎鐗╃祫鎴�锛屽苟涓斿湪閫欎簺绲勫垎涓�锛岀景鍩哄寲鍚堢墿濡傞叜銆侀啗鑸囬叝姣旂兇椤炲寲鍚堢墿鑳界敘(ch菐n)鐢熸洿鏄庨’鐨勬埃鍛�銆�