第 44 卷第 1 期 |  | Vol. 44 No. 1 | 2014 年 2 月 | Feb 2014 |
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所屬欄目:功能材料
白泥/氯化聚乙烯母粒料的制備及在PVC型材中的應用 |
李 淵1,羅瓊林1,徐建雙2,熊 晨2,蘇勝培1*
(1. 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;2. 深圳市博富隆新材料科技有限公司,廣東 深圳 518118) |
摘 要:利用不同添加劑,將白泥與氯化聚乙烯(CPE)濕法混煉,利用添加助劑的不同,通過(guò)雙螺桿擠出機擠出造粒制備了兩種白泥/CPE(A,B)母粒料;將白泥/CPE母粒料與PVC樹(shù)脂以及其他助劑共擠制備了PVC型材。研究了兩種母粒料制備及使用方法對PVC型材性能的影響,母粒料A法制備的PVC型材彎曲強度、彎曲彈性模量、拉伸強度、拉伸彈性模量、沖擊強度、維卡軟化溫度分別為65.4 MPa、2 900 MPa、44.5 MPa、1 100 MPa、14.5 kJ/m2、85.0℃,母粒料B法分別為63.5 MPa、2 800 MPa、42.9 MPa、1 000 MPa、16.2 kJ/m2、82.3℃,兩種方法制備的PVC型材彎曲彈性模量、維卡軟化溫度均高于GB/T 8814-2004門(mén)、窗用未增塑聚氯乙烯(PVC-U)型材要求(彎曲彈性模量≥2 200 MPa,維卡軟化溫度≥75℃)。SEM分析結果表明白泥粒子與PVC基體界面結合良好,分散均勻,顆粒粒徑約為0.5~1.0 μm。實(shí)驗結果表明利用兩種母粒料制備的PVC型材在性能上無(wú)顯著(zhù)差異,均可達到均勻分散白泥粒子的目的。 |
關(guān)鍵詞:白泥;氯化聚乙烯;母粒料;聚氯乙烯 |
中圖分類(lèi)號:TQ325 文獻標識碼:A 文章編號:1009-9212(2014)01-0038-06 |
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Preparation of Lime Mud/CPE Master Batches and Their Applications in the Preparation of PVC Profile |
LI Yuan1,LUO Qiong-lin1,XU Jian-shuang2,XIONG Chen2,SU Sheng-pei1*
(1. College of Chemistry and Chemical Engineering,Key Lab of Sustainable Resources Processing and Advanced Materials,Hunan Normal University,Changsha 410081,China;2. Shenzhen Prosperous New Materials Co.,Ltd.,Shenzhen 518118,China) |
Abstract:Lime mud/chlorinated polyethylene(CPE)master batch(A or B)was prepared by means of twin-roll mixing and extruding,and then it was blended with polyvinyl chloride(PVC)resin and additives to prepare composite material. Two different master batches were prepared and their effects on the properties of PVC profile were investigated. The flexural strength,flexural modulus,tensile strength,tensile modulus,impact strength and Vicat softening temperature of PVC profile prepared by master batch A is 65.4 MPa,2 900 MPa,44.5 MPa,1 100 MPa,14.5 kJ/m2 and 85.0℃,and by master batch B is 63.5 MPa,2 800 MPa,42.9 MPa,1 000 MPa,16.2 kJ/m2 and 82.3℃,respectively. The flexural modulus and Vicat softening temperature of two composites are superior to the standard of GB/T 8814-2004 which is for unplasticized polyvinyl chloride(PVC)profiles for the doors and windows(flexural modulus ≥2 200 MPa,Vicat softening temperature ≥75℃). The SEM analysis of typical composite showed that the particle size of lime mud is from 0.5 to 1 μm. The results indicate that there is no significant difference in performance between the PVC profiles prepared by master batch A and B,and the lime mud particles are well dispersed in the PVC matrix. |
Key words:lime mud;chlorinated polyethylene;master batch;polyvinyl chloride |
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基金項目:湖南師范大學(xué)瀟湘學(xué)者啟動(dòng)資金資助課題(化050613),深圳市戰略新興產(chǎn)業(yè)發(fā)展專(zhuān)項資金(CXZZ20120830161412161)。
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作者簡(jiǎn)介:李 淵(1988-),男,湖南衡陽(yáng)人,碩士研究生,研究方向:高分子復合材料。(E-mail:liyuan5257750@gmail.com)
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聯(lián) 系 人:蘇勝培,教授,博士生導師。(E-mail:sushengpei@gmail.com)
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收稿日期: 2013-12-2
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