红外透明材料包覆片状金属粉复合粒子的制备与表征

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1、碗{·论文虬外透明材料包覆片状巍属粉复合粒子的制蔷与表征摘要本论灾以超细粉体制备及粒子复合技术为基础，在金属粉(Cu、AI)表面包覆～鼷塞￡钤遴竣槛较好蛉骜谯颜糕，遮盖金耩耱粒念暴光泽，镁鍪窭趣覆式震舍粒予，对复含粒予的制备的机理及工艺条件进行了研究。采鼹化学滚糖沉积法黼各了Cu／CuPc簦会粒予，磋究了不惩戆截备蘩韩对复含粒子的影晌。实验表明，慢速稀释以及邂量的表面活性荆都可以使复合粒子包覆爨完全。以尿素为沉淀粼，遵过均匀淀淀法，在锻羚表垂毽覆一爨Ni2C03(OH)!，熬霸在马弗炉中400"C条件

2、下，锻烧2小时，制备出A1／Ni0复含被子。以硫代己醮胺为淡淀裁，道过均匀沉淀法；在渡耀中制备了硫他甥(CdS、Z瞒)霞撩片状Al粉韵复含粒子，研究了不同的话《备条件对复合粒子的影响。通过扫描电予恩微镜(SEM)、博立时变抉红外光谱(FTIR)、X射线德射

3、足，为多波段兼嚣锈装涂料孛蔓金颜鞲鞍予魏研制舞蒋了凝鹃赣滚，美键谣；复会粒子粼冬袭挺纯学滚穗淡积法均每嚣淀法鼗乡}伪装硕卜论文红外透明材料包覆片状金属粉复台粒子的制蔷与表征AbstractInthispaper,severalcoloringpigmentsweresynthesizedandthesheetmetal(CuandAI)powderswerecoatedbYthesepigmentswiththetechnologyofsuperpowderpreparingandparticleco

4、mpositing．Thecoatedcompositepar-tideswerepreparedbYthese，andthemetalliclusterofthemetalpowdersweredefiladed．Themechanismandtheprocessingconditionsofcompositeparticleswereresearched．TheCu／CuPccompositeparticlewaspreparedwiththemethodofchemicalliquiddepos

5、itionandtheaffectofdifferentconditionswereresearched．Theresultsshowthatslowfooteddilutionandallamountofsurfactantscanmakethesheetcopperpowderbecoatedcompletely．WithUreaasprecipitator,thesheetaluminumpowderswerecoatedbyalayerofNi2C03(OHhbyhomogeneousprec

6、ipitationmethod．ThenthecompositeparticlesWerecalcinedinmuffle敷thetemperatureof400"Cfor2hourstopreparethecompositeparticlesofA1／NiO．Someotherscompositeparticlesthatsheetaluminumpowderswerecoatedbysulphidewerepreparedbymethodofhomogeneousprecipitationusin

7、gthiacetamideasprecipitator．Andtheaffectstothecompositeparticleofdifferentconditionswereresearched，SEM，FTIR，XRD，GranularityAnalysisandotheranalyticalmethodswereused协characterizethesampleofcompositeparticles。Thetestresultsshowthatthecompositeparticleswer

8、ecoatedcompletelyandthemetalliclusterofthemetalpowderweredefiladedabsolutely．Withsheetmetalpowderascoreparticle，coatedcompositeparticleswereprepared，Andbythese．theshortageofmetalpowdersaslowemmisivityparticlesthatCan’tmeetthemult