液相沉积法制备氢氧化镁包覆碳微球复合阻燃材料  

Preparation of Mg(OH)_2 coating carbon microsphere composite flame-resisting material by liquid deposition method

作　　者：张莹[1] 牛梅[2,1] 薛宝霞[1] 杨雅茹[1] 李京京[1] 戴晋明[2,1] 

机构地区：[1]太原理工大学轻纺工程学院,榆次030600 [2]太原理工大学新材料界面科学与工程教育部重点实验室,太原030024

出　　处：《化工新型材料》2016年第4期66-68,共3页New Chemical Materials

基　　金：国家自然科学(青年)基金(51302183);山西省自然科学(青年)基金(2012021021-6);山西省回国留学人员科研基金(2012L027);太原理工大学青年基金资助项目(2012-044)

摘　　要：以碳微球(CMSs)、氢氧化钠和氯化镁为原料,采用液相沉积法制备了Mg(OH)_2/CMSs复合阻燃材料,通过场发射扫描电镜(SEM)和X射线衍射仪(XRD)分析了材料的微观形貌和结构;并结合Mg(OH)_2/CMSs复合阻燃材料与聚对苯二甲酸乙二醇酯(PET)共混制备Mg(OH)_2/CMSs/PET复合材料,通过数显氧指数测试仪分析其阻燃性能。结果表明,通过液相沉积法Mg(OH)_2包覆在CMSs表面,且包覆效果较好;Mg(OH)_2/CMSs复合阻燃材料燃烧时分解生成的氧化镁(MgO)、水和残余炭层,使得Mg(OH)_2/CMSs/PET复合材料的极限氧指数由PET的21.0%增加到27.5%,并具有优良的抑烟性和抗熔滴性,提高了PET材料的阻燃性能。MgOH2/CMSs composite flame-resisting materials were prepared by liquid deposition method,using carbon microspheres（CMSs）,NaOH and MgCl_2 as raw materials.The micromorphology and structure of samples were characterized by field emission scanning electron microscopy（SEM）and X-ray diffraction analyzer（XRD）.And MgOH2/CMSs/PET composite materials were prepared by mixing MgOH2/CMSs composite flame-resisting materials with PET.The flame-resisting property were analysed by the limited oxygen index tester.The formation mechanism of MgOH2/CMSs materials was discussed in detail.The results showed that MgOH2 was coated on the surfaces of carbon microspheres,and the effect of coating was better by liquid deposition method.In addition,MgOH2/CMSs materials can decompose into MgOand water,formed the char layers,which made the limiting oxygen index of MgOH2/CMSs/PET to increase from 21.0%to 27.5%,resulting in the good properties of suppression smoke and anti-dripping.It suggested the flame-resisting property of MgOH2/CMSs/PET materials was improved.

关 键 词：碳微球 液相沉积法 抑烟 抗熔滴 阻燃 

分 类 号：TB33[一般工业技术—材料科学与工程]