合成树脂及塑料
閤成樹脂及塑料
합성수지급소료
CHINA SYNTHETIC RESIN AND PLASTICS
2013年
5期
24-27,59
,共5页
淀粉%β-环糊精%无皂乳液聚合%金属离子%吸附
澱粉%β-環糊精%無皂乳液聚閤%金屬離子%吸附
정분%β-배호정%무조유액취합%금속리자%흡부
starch%β-cyclodextrin%no soap emulsion polymerization%metal ion%adsorption
采用无皂乳液聚合法制备丙烯酸乙酯（EA）与丙烯酰胺（AM）接枝淀粉/β-环糊精（β-CD）树脂，通过傅里叶变换红外光谱、扫描电子显微镜分析了树脂的结构，用原子吸收光谱法研究了树脂的吸附性能。结果表明：当淀粉用量为2.00?g，淀粉，β-CD，EA，AM质量比为2.0∶1.0∶1.0∶0.5，引发剂用量为0.03?g，交联剂用量为0.03?g，聚乙烯醇用量为0.04?g，十二烷基硫酸钠为0.02?g，在50?℃时反应5?h，得到的树脂接枝率最大。树脂对金属离子吸附量与金属离子结构、外层电子排布有关，吸附Cu2+，Mn2+的最佳时间分别为120，150?min；随着金属离子质量浓度及溶液pH值的增大，吸附量亦增大，且树脂对Cu2+吸附量大于Mn2+。树脂对色素胭脂红的吸附量随胭脂红质量浓度的增大而增大。当Cu2+，Mn2+和胭脂红初始质量浓度分别为50.0，50.0，40.0?mg/L时，吸附量分别为15.531?0，10.285?0，12.138?0?mg/g。
採用無皂乳液聚閤法製備丙烯痠乙酯（EA）與丙烯酰胺（AM）接枝澱粉/β-環糊精（β-CD）樹脂，通過傅裏葉變換紅外光譜、掃描電子顯微鏡分析瞭樹脂的結構，用原子吸收光譜法研究瞭樹脂的吸附性能。結果錶明：噹澱粉用量為2.00?g，澱粉，β-CD，EA，AM質量比為2.0∶1.0∶1.0∶0.5，引髮劑用量為0.03?g，交聯劑用量為0.03?g，聚乙烯醇用量為0.04?g，十二烷基硫痠鈉為0.02?g，在50?℃時反應5?h，得到的樹脂接枝率最大。樹脂對金屬離子吸附量與金屬離子結構、外層電子排佈有關，吸附Cu2+，Mn2+的最佳時間分彆為120，150?min；隨著金屬離子質量濃度及溶液pH值的增大，吸附量亦增大，且樹脂對Cu2+吸附量大于Mn2+。樹脂對色素胭脂紅的吸附量隨胭脂紅質量濃度的增大而增大。噹Cu2+，Mn2+和胭脂紅初始質量濃度分彆為50.0，50.0，40.0?mg/L時，吸附量分彆為15.531?0，10.285?0，12.138?0?mg/g。
채용무조유액취합법제비병희산을지（EA）여병희선알（AM）접지정분/β-배호정（β-CD）수지，통과부리협변환홍외광보、소묘전자현미경분석료수지적결구，용원자흡수광보법연구료수지적흡부성능。결과표명：당정분용량위2.00?g，정분，β-CD，EA，AM질량비위2.0∶1.0∶1.0∶0.5，인발제용량위0.03?g，교련제용량위0.03?g，취을희순용량위0.04?g，십이완기류산납위0.02?g，재50?℃시반응5?h，득도적수지접지솔최대。수지대금속리자흡부량여금속리자결구、외층전자배포유관，흡부Cu2+，Mn2+적최가시간분별위120，150?min；수착금속리자질량농도급용액pH치적증대，흡부량역증대，차수지대Cu2+흡부량대우Mn2+。수지대색소연지홍적흡부량수연지홍질량농도적증대이증대。당Cu2+，Mn2+화연지홍초시질량농도분별위50.0，50.0，40.0?mg/L시，흡부량분별위15.531?0，10.285?0，12.138?0?mg/g。
Starch/β-cyclodextrin?resin?grafted?by?ethyl?acrylate(EA)?and?acrylamide(AM)?was?synthe-sized?by?no?soap?emulsion?polymerization.?The?structure?of?the?resin?was?analyzed?by?Fourier?transform?infrared?spectroscopy(FTIR)?and?scanning?electron?microscopy(SEM),?and?the?adsorption?properties?of?the?resin?were?tested?by?atomic?absorption?spectrometry(AAS).?The?results?show?that?the?resin?with?the?maximum?grafting?ratio?is?obtained?when?the?mass?of?starch?is?2.00?g,?the?mass?ratio?of?starch,?β-cyclodextrin,?EA?and?AM?is?2.0∶1.0∶1.0∶0.5,?the?mass?of?the?initiator,?crosslinking?agent,?polyvinyl?alcohol?and?sodium?dodecyl?sulfate?are?0.03,?0.03,?0.04,?0.02?g,?respectively,?and?the?reaction?is?carried?out?at?50?℃?for?five?hours.?The?adsorbance?of?metal?ions?by?the?resin?is?associated?with?the?structure?and?outer?electron?configuration?of?the?metal?ions.?The?optimal?adsorption?time?of?Cu2+?and?Mn2+?are?120,?150?minutes,?respectively.?The?adsorbance?increases?with?the?rise?in?the?concentration?of?metal?ions?and?pH?value,?and?the?adsorbance?of?Cu2+?is?more?than?that?of?Mn2+.?The?adsorbance?of?carmine?by?the?resin?increases?with?the?augmentation?of?the?concentration?of?carmine.?The?adsorbance?of?Cu2+,?Mn2+?and?carmine?by?the?resin?are?15.531?0,?10.285?0,?12.138?0?mg/g?when?the?initial?concentration?of?Cu2+,?Mn2+?and?carmine?are?50.0,?50.0,?40.0?mg/L,?respectively.
