| 第 41 卷第 3 期 |  | Vol. 41 No. 3 | | 2011 年 6 月 | Jun 2011 |
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所屬欄目：功能材料
黑液-蒙脫土／聚氯乙烯／丁腈橡膠熱塑性彈性體的制備及性能研究 |
| 杜 鵬，曹仲林，蘇勝培*
（湖南師范大學(xué) 化學(xué)化工學(xué)院 資源精細化與先進(jìn)材料湖南省高校重點(diǎn)實(shí)驗室，湖南 長(cháng)沙 410081） |
| 摘 要：采用蒙脫土對造紙黑液中的木質(zhì)素進(jìn)行絮凝沉淀，制備黑液-蒙脫土復合物（BL-MMT），然后將其應用于聚氯乙烯／丁腈橡膠（PVC／NBR）熱塑性彈性體，并對其力學(xué)性能、耐老化性能及熱降解性能進(jìn)行測試。結果表明：隨著(zhù)BL-MMT中木質(zhì)素蒙脫土比例增大，熱塑性彈性體力學(xué)性能先增大后減小，適宜配比m（木質(zhì)素）∶m（蒙脫土）=1∶1。BL-MMT份數增大，熱塑性彈性體力學(xué)性能先增大后減小，20份時(shí)出現最大值。BL-MMT填充的PVC／NBR熱塑性彈性體與添加炭黑和碳酸鈣相比，力學(xué)性能和熱性能相當，而耐老化性能更為優(yōu)越。黑液-蒙脫土復合物可望用作PVC／NBR熱塑性彈性體的補強劑。 |
| 關(guān)鍵詞：黑液；蒙脫土；PVC；NBR；熱塑性彈性體 |
| 中圖分類(lèi)號：TQ333 文獻標識碼：A 文章編號：1009-9212（2011）03-0043-05 |
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| Study on Preparation and Properties of Black Liquor Montmorillonite Complex／PVC／NBR Thermoplastic Elastomer |
| DU Peng，CAO Zhong-lin，SU Sheng-pei*
（College of Chemistry and Chemical Engineering，The Key Laboratory of Resource Fine-processing and Advanced Materials，College of Hunan Province，Changsha 410081，China） |
| Abstract：A black liquor-montmorillonite complex （BL-MMT） was prepared by flocculating precipitation of lignin in black liquor with montmorillonite，and applied in the preparation of PVC／NBR thermoplastic elastomer composites. The mechanical properties，aging performance and thermal properties of the PVC／NBR composites were tested. The experimental results indicated that the mechanical properties of BL-MMT/PVC／NBR composites were affected by the loadings and composition of BL-MMT complex. A high performance was achieved at a lignin/MMT ratio of 1∶1. The mechanical properties of BL-MMT／PVC／NBR increase with the loading of BL-MMT up to 20 phr. A comparison study was also performed using carbon black and calcium carbonate as comparative fillers. There is no significant mechanical and thermal property difference among BL-MMT，carbon black and calcium carbonate as fillers for PVC／NBR composites. However，the aging property of BL-MMT／PVC／NBR was the best. All experimental results indicated that BL-MMT could be an effective reinforcing agent in PVC/NBR thermoplastic elastomer. |
| Key words：black liquor; montmorillonite; PVC; NBR; thermoplastic elastomer |
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基金項目：國家科技專(zhuān)項科技服務(wù)小分隊項目（2009GJD20047）。
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作者簡(jiǎn)介：杜 鵬（1988-），男，湖南永順人，研究方向：高分子復合材料。（E-mail：543339359@qq.com）
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聯(lián) 系 人：蘇勝培，教授，博士生導師，研究方向：高分子復合材料。（E-mail：sushengpei@gmail.corn）
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收稿日期：2011-04-2
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