疏水型白炭黑的制备及表征论文

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1、疏水型白炭黑的制备及表征论文安徽工程大学毕业设计（论文）疏水型白炭黑的制备及表征刘峰（安徽工程大学生物与化学工程学院芜湖241000）摘要本文主要是对沉淀法制备的白炭黑以PEG6000为改性剂，进行表面改性，以期增大产品的DBP吸油值，提高产品的分散性。重点考察了改性剂用量、反应温度、反应时间、分散液用量对白炭黑表面改性效果的影响。通过测定白炭黑DBP吸油值作为主要的性能指标用于确定白炭黑的改性效果。研究结果表明，当改性剂用量15%、反应温度80℃、反应时间2.5h、分散液用量为80mL，白炭黑的DBP吸油值达到3.00mL/g。最后对样

2、品的性质特征进行了表征，XRD表征为高度无定形结构。FT-IR谱图表明，采用PEG6000改性后的二氧化硅表面得到明显改善。关键词：稻壳灰；白炭黑；PEG6000；表面改性I刘峰：疏水型白炭黑的制备及表征PreparationandcharacterizationofhydrophobicsilicaLiufeng(CollegeofBiologyandChemicalEngineering,AnhuiPolytechnicUniversity,Wuhu,Anhui,241000)AbstractInthispaper,inorderto

3、increasetheDBPvalueandimprovethedispersibilityoftheproduct,thedepositionofsilicawasmodifiedwithPEG6000.Themodifierdosage,reactiontemperature,reactiontimeanddispersionliquiddosagewereusedtoanalysistheeffectofsilicasurfacemodification.TheDBPvaluewasasthemainindextodetermine

4、theeffectofmodificationofsilica.Theresultshowedthatwhenthedosageofmodifier15%,reactiontemperature80℃,reactiontime2.5handthedispersionamountwas80mL,thesilicaDBPvalueis3.00mL/g.AndtheX-raydiffractionpatternofsilicapowderswasshownatypicalamorphousstructure.Thestructureandpro

5、pertiesofsilicawerecharacterizedbyFT-IRshowedthatthepreparedsilicaviaPEG6000modifiedwasimprovedobviously.Keyword:Ricehuskash；Silica；PEG6000；SurfacemodificationII安徽工程大学毕业设计（论文）目录引言.............................................................................................

6、...........................................................-1-第1章绪论..............................................................................................................................................-2-1.1稻壳灰概述....................................................

7、.............................................................................-2-1.1.1稻壳灰简介.......................................................................................................................-2-1.1.2稻壳灰的综合利用...............................................

8、............................................................-2-1.2白炭黑的性质和结构.....................