液体天然橡胶对湿法混炼制备天然橡胶/白炭黑复合材料性能的影响
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摘要
采用湿法混炼工艺制备天然橡胶/白炭黑(W(NR/SiO_2))复合材料,并采用液体天然橡胶(LNR)为增容剂,探讨了LNR对复合材料硫化特性、橡胶加工性能、白炭黑分散性、静态力学性能及动态性能的影响。结果表明:LNR具有较好的增容效果;使用LNR增容后,胶料的正硫化时间缩短,在白炭黑为70 phr时T_(90)缩短4.16 min,加工性能改善;白炭黑在NR中的分散性提高;胶料力学性能得到改善,在白炭黑为60 phr时最明显,拉伸强度和撕裂强度分别提高25.73%和66.59%;LNR增容后胶料的抗湿滑性提高且滚动阻力降低。复合材料良好的相容性是LNR与NR和白炭黑两相同时发生作用形成增容界面的结果。
Natural rubber/silica composites( NR/SiO_2) was prepared by wet compounding technology with liquid natural rubber( LNR) as compatibilizer. Curing characteristics,processing properties,filler dispersion and mechanical properties were investigated.The results showe that the optimum cure time is decreased 4.16 min,the processing properties of the composites were improved with the incorporation of LNR; better silica dispersion in NR in presence of LNR; the when silica is 60 phr,tensile strength and tear strength of the vulcanizates were increase 25. 73% and 66. 59% respectively; as far as the dynamic mechanical properties are concerned,the W( NR/SiO_2) composites with LNR owned a combination of high wet skid resistance and low rolling resistance. It is revealed that LNR has better compatibility,which is attributed to LNR reaction with both NR and SiO_2 to form compatibilizing interface.
Natural rubber/silica composites( NR/SiO_2) was prepared by wet compounding technology with liquid natural rubber( LNR) as compatibilizer. Curing characteristics,processing properties,filler dispersion and mechanical properties were investigated.The results showe that the optimum cure time is decreased 4.16 min,the processing properties of the composites were improved with the incorporation of LNR; better silica dispersion in NR in presence of LNR; the when silica is 60 phr,tensile strength and tear strength of the vulcanizates were increase 25. 73% and 66. 59% respectively; as far as the dynamic mechanical properties are concerned,the W( NR/SiO_2) composites with LNR owned a combination of high wet skid resistance and low rolling resistance. It is revealed that LNR has better compatibility,which is attributed to LNR reaction with both NR and SiO_2 to form compatibilizing interface.
引文
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[11]本刊记者.湿法混炼橡胶新材料工艺技术的开发进展[J].橡塑技术与装备,2015,41(7):1-6.(Print Journalist.Development progress of wet mixing for new rubber material technology[J].China Rubber/Plastics Technology and Equipment,2015,41(7):1-6.)
[12]林艳芬.湿炼法NR/n Si O2和NR/炭黑复合材料的制备、结构与性能的研究[D].广州:华南理工大学,2013.(LIN Y F.The study of wet refining method NR/Si O2and NR/N234 composites:preparation、structure and properties[D].Cuangzhou:South China University of Technology,2013.)
[13]PRASERTSRI S,RATTANASOM N.Fumed and precipitated silica reinforced natural rubber composites prepared from latex system:Mechanical and dynamic properties[J].Polymer Testing,2012,31(5):593-605.
[14]PRASERTSRI S,RATTANASOM N.Mechanical and damping properties of silica/natural rubber composites prepared from latex system[J].Polymer Testing,2011,30(5):515-526.
[15]PHINYOCHEEP P,PHETPHAISIT C W,DEROUET D,et al.Chemical degradation of epoxidized natural rubber using periodic acid:preparation of epoxidized liquid natural rubber[J].Journal of Applied Polymer Science,2005,95(1):6-15.
[16]谭锋,王迪珍,罗东山.液体天然橡胶作为NR反应型增塑剂的研究[J].橡胶工业,1998(12):711-714.(TAN F,WANG D Z,LUO D S.Study of liquid matural rubber as NR reactive plasticizer[J].Rubber Industry,1998(12):711-714.)
[17]周荣杰,李超群,杨晓红,等.液体天然橡胶作软化剂对NR/白炭黑复合材料性能的影响[J].材料导报,2015,29(4):60-63.(ZHOU R J,LI C Q,YANG X H,et al.Effect of liquid natural rubber as softener on the property of NR/silica composit[J].Materials Review:Research,2015,29(4):60-63.)
[18]IBRAHIM A,SAHRIM A,SOM S C.Blending of natural rubber with linear low-density polyethylene[J].Journal of Applied Polymer Science,1995,58(58):1125-1133.
[19]PRANEE P,SAYAN D.Ultraviolet-curable liquid natural rubber[J].Journal of Applied Polymer Science,2000,78(8):1478-1485.
[20]KARGARZADEH H,AHMAD I,ABDULLAH I,et al.Functionalized liquid natural rubber and liquid epoxidized natural rubber:a promising green toughening agent for polyester[J].Journal of Applied Polymer Science,2015,132(3):1-15.
[21]KO J Y,PRAKASHAN K,JIN K K.New silane coupling agents for silica tire tread compounds[J].Journal of Elastomers&Plastics,2012,44(6):549-562.
[22]ZHANG F Q,LIAO L S,WANG Y Z,et al.Reinforcement of natural rubber latex with silica modified by cerium oxide:preparation and properties[J].Journal of Rare Earths,2016,34(2):221-226.
[23]LI Y,HAN B,WEN S,et al.Effect of the temperature on surface modification of silica and properties of modified silica filled rubber composites[J].Composites Part A.Applied Science&Manufacturing,2014,62(17):52-59.
[24]GROSCH K A.The relation between the friction and viscoelastic properties of rubber[J].Proceedings of the Royal Society A,1963,274(1356):21-39.
[2]王鹏,苏正涛,赖亮庆,等.硫化压力对橡胶/金属热硫化粘接剥离强度的影响[J].航空材料学报,2016,36(1):69-74.(WANG P,SU Z T,LAI L Q,et al.Impact of curing pressure on peel strength of hot-curing metal/rubber adhesive joint[J].Journal of Aeronautical Materials,2016,36(1):69-74.)
[3]戈明亮,贾德民.X射线衍射法研究天然橡胶/黏土纳米复合材料的插层过程[J].材料工程,2012(3):43-46.(GE M L,JIA D M.Study on intercalating stage of natural rubber/clay nanocomposites by X-ray diffraction[J].Journal of Materials Engineering,2012(3):43-46.)
[4]WANG M J,MORRIS M D,KUTSOVSKY Y.Effect of fumed silica surface area on silicone rubber reinforcement[J].Kgk Rubberpoint,2008,61(3):107-117.
[5]KAEWSAKUL W,SAHAKARO K,DIERKES W K,et al.Optimization of mixing conditions for silica-reinforced natural rubber tire tread compounds[J].Rubber Chemistry&Technology,2012,85(2):277-294.
[6]赵国璋,施利毅,卓靖,等.天然橡胶基凹凸棒土纳米复合材料制备及性能研究[J].材料工程,2011(11):9-14.(ZHAO G Z,SHI L Y,ZHUO J,et al.Study on preparation and properties of attapulgite reinforced natural rubber nanocomposites[J].Journal of Materials Engineering,2011(11):9-14.)
[7]SEEKKUARACHCHI I N,TANAKA K,KUMAZAWA H,et al.Dispersion mechanism of nano-particulate aggregates using a high pressure wet-type jet mill[J].Chemical Engineering Science,2008,63(9):2341-2366.
[8]李俊娟,王宝品,攸路军,等.湿法混炼共沉胶新材料的制备与研究[J].合成材料老化与应用,2015(1):23-26.(LI J J,WANG B P,YOU L J,et al.Study on preparation of integral rubber by wet mixing method[J].Synthetic Materials Aging and Application,2015(1):23-26.)
[9]李花婷,蔡尚脉,王清才,等.绿色轮胎用橡胶材料的研究进展[J].橡胶科技,2014(4):5-9.(LI H T,CAI S M,WANG Q C,et al.Research progress in rubber materials for green tire[J].Rubber Science and Technology,2014(4):5-9.)
[10]陈琛.滚动阻力及米其林绿色轮胎[J].汽车与配件,2009(8):73-73.(CHEN C.Rolling resistance and Michelin green tyre[J].Automobile and Parts,2009(8):73-73)
[11]本刊记者.湿法混炼橡胶新材料工艺技术的开发进展[J].橡塑技术与装备,2015,41(7):1-6.(Print Journalist.Development progress of wet mixing for new rubber material technology[J].China Rubber/Plastics Technology and Equipment,2015,41(7):1-6.)
[12]林艳芬.湿炼法NR/n Si O2和NR/炭黑复合材料的制备、结构与性能的研究[D].广州:华南理工大学,2013.(LIN Y F.The study of wet refining method NR/Si O2and NR/N234 composites:preparation、structure and properties[D].Cuangzhou:South China University of Technology,2013.)
[13]PRASERTSRI S,RATTANASOM N.Fumed and precipitated silica reinforced natural rubber composites prepared from latex system:Mechanical and dynamic properties[J].Polymer Testing,2012,31(5):593-605.
[14]PRASERTSRI S,RATTANASOM N.Mechanical and damping properties of silica/natural rubber composites prepared from latex system[J].Polymer Testing,2011,30(5):515-526.
[15]PHINYOCHEEP P,PHETPHAISIT C W,DEROUET D,et al.Chemical degradation of epoxidized natural rubber using periodic acid:preparation of epoxidized liquid natural rubber[J].Journal of Applied Polymer Science,2005,95(1):6-15.
[16]谭锋,王迪珍,罗东山.液体天然橡胶作为NR反应型增塑剂的研究[J].橡胶工业,1998(12):711-714.(TAN F,WANG D Z,LUO D S.Study of liquid matural rubber as NR reactive plasticizer[J].Rubber Industry,1998(12):711-714.)
[17]周荣杰,李超群,杨晓红,等.液体天然橡胶作软化剂对NR/白炭黑复合材料性能的影响[J].材料导报,2015,29(4):60-63.(ZHOU R J,LI C Q,YANG X H,et al.Effect of liquid natural rubber as softener on the property of NR/silica composit[J].Materials Review:Research,2015,29(4):60-63.)
[18]IBRAHIM A,SAHRIM A,SOM S C.Blending of natural rubber with linear low-density polyethylene[J].Journal of Applied Polymer Science,1995,58(58):1125-1133.
[19]PRANEE P,SAYAN D.Ultraviolet-curable liquid natural rubber[J].Journal of Applied Polymer Science,2000,78(8):1478-1485.
[20]KARGARZADEH H,AHMAD I,ABDULLAH I,et al.Functionalized liquid natural rubber and liquid epoxidized natural rubber:a promising green toughening agent for polyester[J].Journal of Applied Polymer Science,2015,132(3):1-15.
[21]KO J Y,PRAKASHAN K,JIN K K.New silane coupling agents for silica tire tread compounds[J].Journal of Elastomers&Plastics,2012,44(6):549-562.
[22]ZHANG F Q,LIAO L S,WANG Y Z,et al.Reinforcement of natural rubber latex with silica modified by cerium oxide:preparation and properties[J].Journal of Rare Earths,2016,34(2):221-226.
[23]LI Y,HAN B,WEN S,et al.Effect of the temperature on surface modification of silica and properties of modified silica filled rubber composites[J].Composites Part A.Applied Science&Manufacturing,2014,62(17):52-59.
[24]GROSCH K A.The relation between the friction and viscoelastic properties of rubber[J].Proceedings of the Royal Society A,1963,274(1356):21-39.