功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2015年
2期
2144-2147,2152
,共5页
何永兴%朱光明%邬治平%周玉明
何永興%硃光明%鄔治平%週玉明
하영흥%주광명%오치평%주옥명
有机-无机微胶囊%溶剂蒸发%氯离子触发
有機-無機微膠囊%溶劑蒸髮%氯離子觸髮
유궤-무궤미효낭%용제증발%록리자촉발
organic-inorganic microcapsules%solvent evaporation%chlorine ion triggered
通过溶剂蒸发法制备囊壁嵌入硫酸铅(Pb-SO4)的十六烷/聚甲基丙烯酸甲酯(PMMA)有机-无机复合微胶囊,利用络合原理在囊壁中嵌入与氯离子发生络合反应的硫酸铅,从而达到对氯离子触发。通过激光粒径分析、十六烷检测仪和扫描电子显微镜(SEM)来确定微胶囊的制备工艺参数和触发效果。结果表明,5%的聚乙烯醇(PVA)做乳化剂,400 r/min乳化搅拌转速制备出的微胶囊粒径在100μm 左右,粒径分布范围比较窄,且PbSO4在壁材上分布很均匀。此外,微胶囊在不同浓度的盐水中和不同的时间内触发的效果不同。
通過溶劑蒸髮法製備囊壁嵌入硫痠鉛(Pb-SO4)的十六烷/聚甲基丙烯痠甲酯(PMMA)有機-無機複閤微膠囊,利用絡閤原理在囊壁中嵌入與氯離子髮生絡閤反應的硫痠鉛,從而達到對氯離子觸髮。通過激光粒徑分析、十六烷檢測儀和掃描電子顯微鏡(SEM)來確定微膠囊的製備工藝參數和觸髮效果。結果錶明,5%的聚乙烯醇(PVA)做乳化劑,400 r/min乳化攪拌轉速製備齣的微膠囊粒徑在100μm 左右,粒徑分佈範圍比較窄,且PbSO4在壁材上分佈很均勻。此外,微膠囊在不同濃度的鹽水中和不同的時間內觸髮的效果不同。
통과용제증발법제비낭벽감입류산연(Pb-SO4)적십륙완/취갑기병희산갑지(PMMA)유궤-무궤복합미효낭,이용락합원리재낭벽중감입여록리자발생락합반응적류산연,종이체도대록리자촉발。통과격광립경분석、십륙완검측의화소묘전자현미경(SEM)래학정미효낭적제비공예삼수화촉발효과。결과표명,5%적취을희순(PVA)주유화제,400 r/min유화교반전속제비출적미효낭립경재100μm 좌우,립경분포범위비교착,차PbSO4재벽재상분포흔균균。차외,미효낭재불동농도적염수중화불동적시간내촉발적효과불동。
Organic-inorganic compound microcapsules with capsule wall embedded lead sulfate (PbSO4 )and hexadecane core surrounded by PMMA shell had been prepared by the solvent evaporation,embedded in the cap-sule wall and chloride ion complexing reaction of lead sulfate by using the theory of complex to achieve the chlo-ride ion was triggered.preparation of microcapsule technology parameters and triggered effects be determined by scanning and optical microscopy techniques and hexadecane detector.Results show that microcapsule particle size in about 100 microns while the concentration of PVA as the dispersion agent is 5% and the stirring speed is 400 r/min,and the particle size is uniform,and PbSO4 is evenly distributed on the wall.In addition to,Micro-capsules with the effect of trigger is changed in different time and concentrations of brine.