复配偶联剂改性粉煤灰及其对氯丁橡胶性能的影响
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摘要
采用物理球磨法和复配偶联剂化学接枝法相结合对粉煤灰进行改性,研究改性粉煤灰对氯丁橡胶(CR)性能的影响。结果表明:改性粉煤灰平均粒径减小至5.79μm,复配偶联剂在粉煤灰表面形成完整包覆层,使其疏水性增强,Zeta电位绝对值减小,达到良好的表面改性效果;在CR中填充10～20份改性粉煤灰,其可与炭黑具有良好的协同作用,硫化胶综合性能最优。
The fly ash was modified by physical ball milling and chemical grafting of complex coupling agent,and the effect of the modified fly ash on the properties of chloroprene rubber(CR) was studied. The results showed that the average particle size of the modified fly ash was reduced to 5. 79 μm,and the complex coupling agent formed a complete coating on the surface of the fly ash. The hydrophobicity of the fly ash was enhanced and the absolute value of the Zeta potential was reduced,indicating achievement of good surface modification. With 10～20 phr of modified fly ash with carbon black,a good synergistic effect was obtained,and the compound had optimal comprehensive properties.
The fly ash was modified by physical ball milling and chemical grafting of complex coupling agent,and the effect of the modified fly ash on the properties of chloroprene rubber(CR) was studied. The results showed that the average particle size of the modified fly ash was reduced to 5. 79 μm,and the complex coupling agent formed a complete coating on the surface of the fly ash. The hydrophobicity of the fly ash was enhanced and the absolute value of the Zeta potential was reduced,indicating achievement of good surface modification. With 10～20 phr of modified fly ash with carbon black,a good synergistic effect was obtained,and the compound had optimal comprehensive properties.
引文
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[13]李安,王巧玲,高光涛.制备工艺对环保型白炭黑/氯丁橡胶/顺丁橡胶复合材料结构和性能的影响[J].橡胶工业,2017,64(3):149-152.
[14]冯俊杰,张瑞芳,龚伦伦,等.基于粉煤灰的多孔无机保温材料的研制[J].材料科学与工程学报,2014,32(5):638-642.
[2]Kosiorkazberuk M,Wiedzka D J W.Influence of Fly Ash Form Co-combustion of Coal and Biomass on Scalling Resistence of Concrete[J].Archives of Civil Engineering,2010(3):239-254.
[3]He Y,Luo Q,Hu H.Situation Analysis and Countermeasures of China’s Fly Ash Pollution Prevention and Control[J].Procedia Environmental Sciences,2012,16:690-696.
[4]Ramesan M T.Processing Characteristics,Mechanical and Electrical Properties of Chlorinated Styrene Butadiene Rubber/Fly Ash Composites[J].Journal of Thermoplastic Composite Materials,2015,28(9):1286-1300.
[5]唐忠锋,王继虎,陈有双,等.活化粉煤灰/NR复合材料的制备与性能研究[J].橡胶工业,2009,56(10):611-614.
[6]曹兰柱,乔铁虎.粉煤灰作补强填料的研究[J].露天采矿技术,2007(3):69-71.
[7]Satapathy S A,Nag G B Nando.Thermoplastic Elastomers from Waste Polyethylene and Reclaim Rubber Blends and Their Composites with Fly Ash[J].Process Safety&Environmental Protection,2010,88(2):131-141.
[8]胡红英,胡慧萍,陈启元.非水环境中球磨作用对改性SiO2晶体结构、粒度和Zeta电位的影响[J].过程工程学报,2007,7(4):827-831.
[9]赵计辉,王栋民,王学光,等.改性三乙醇胺助磨剂对粉煤灰水泥的助磨性能[J].非金属矿,2015(1):25-28.
[10]肖翠微.粉煤灰在水处理领域的应用进展[J].洁净煤技术,2016,22(4):45-51.
[11]万祥龙,张海军,叶漫,等.粉煤灰改性及其疏水薄膜研究[J].化工新型材料,2013,41(11):171-173.
[12]赵旭升,贾德民,罗远芳,等.NR/NBR共混物动态力学性能研究[J].橡胶工业,1999,46(2):75-77.
[13]李安,王巧玲,高光涛.制备工艺对环保型白炭黑/氯丁橡胶/顺丁橡胶复合材料结构和性能的影响[J].橡胶工业,2017,64(3):149-152.
[14]冯俊杰,张瑞芳,龚伦伦,等.基于粉煤灰的多孔无机保温材料的研制[J].材料科学与工程学报,2014,32(5):638-642.