694 (MMA)/ * 1,2 2, (1., 300450;2., 010018) :, 2,, MMA 2.1 ( ),, ;, MMA 30%,, (AR);, MMA, (AR);N,N,,, (AR); (AIBN), AFM MMA/, (AR); (MOCA),, ; (MMA),, (AR) 0.11nm, 3.985nm, 2.2 0.67nm, : ; ; ; ( ) : TB324 :A 2.3 :1001-9731(2011) Ⅳ-694-05 [5] 2.4 1, 100~, 120 0.086MPa 1.5~2h, 60, MDI, (70±2), 1.5h,, ( [1], ) MOCA [2] 100~120,, (DBE), A B,,, 120, 1h, [3] NaOH, 2.5 2.5.1 [4] ( ) /,, 20, 24h,, g1 0.001g,,20, 24h, (MMA), g2, : * : (200711020504); (20090514) :2010-10-12 :2011-05-03 : : (1982-),,,,,
: (MMA)/ 695 g2 -g1 346.8Hv 766.5Hv, MMA Δg = 100% g1 MMA, 2.5.2, HXD-10007M, MMA,,, ( JB6148-92 ), 1 (20±1) (65±5)% 15s, 9.8N 2.5.3 MMW-1 [6,7], 2.5.4 (SEM) ( S- 3400N) 1 MMA/ 2.5.5 (SPM) Fig1 MMA/elasticpolyurethanetotalbodysolvent CSPM5500, resistanceperformanc, 1 MMA/ 3 Table 1 MMA/elastic polyurethane total body of hardness 3.1 (HRA,HRC) (Hv) 1 MMA 0(MMA) 68.42 35.91 346.8 0 40%, 0.0298 10%(MMA) 69.53 38.04 364.1 0.0071 MMA 20%(MMA) MMA 30%(MMA) 67.19 75.90 33.63 58.9 323.9 694.9 40%(MMA) 81.97, 61.49 766.5 3.4 2 MMA, 3 3.2 MMA, 4 MMA/ MMA, MMA 2 MMA Fig2DiferentcontentsofMMAfrictiontorquediagram
696 3 MMA Fig3DiferentcontentMMAthefrictioncoeficientgraph MMA MMA, 10%,, 3.5 5 MMA 5(a) (b) (c),, 4 MMA/ 5(d) (e), Fig4 MMA/elasticpolyurethanetotalbodywearfig-, [8] ure, 2 3 4, MMA MMA, MMA [9], MMA, 30%, ; MMA 3.6 30% MMA/ 3D ( 6~9), MMA, MMA, [10] MMA MMA, 2 MMA/ Table2 MMA/elasticpolyurethanetotalbodyscanningprobemicroscopicgrainanalysis MMA/PU 10% :0.40nm 10% :0.40nm MMA/PU 10% :70.000nm 10% :65.000nm MMA/PU :95.93nm 2 50% :0.80nm 50% :0.80nm 50% :80.000nm 50% :75.000nm :0.04nm 2 :45.63nm 2 :0.04nm 2 90% :1.80nm 90% :1.70nm 90% :90.000nm 90% :90.000nm :1.74nm 2 :1.07nm 2 :1.13nm :1.02nm :82.342nm :78.357nm
聚氨酯弹性共体的耐磨性能的研究及微观分析 李亚斌 等 甲基丙烯酸甲酯 ＭＭＡ ６９７ 图 ５ 不同含量 ＭＭＡ 的拉伸断裂面扫描电镜图 ｆ ｆ ｎ ｏｎ ｎ ＭＭＡ ｎ ｆ ｕ ｗ ｐ ｏｎ ｍ ｏｇ ｐｈ ｇ５ｄ 通过与未改性的聚氨酯弹性体的微观比较发现分 子的平均粒径增 大 了 ０ １１ｎｍ 高 度 增 大 了 ３ ９８５ｎｍ 而分子的面积增加了 ０ ６７ｎｍ 这也说明形成了共聚物 分子 图 ８ ＭＭＡ 聚氨酯弹性共体的扫描探针显微图 ｈｎ ｐｏ ｏ ｂｏｄｙ ｎｎ ｎｇ ｙｕ ｇ８ ＭＭＡ ｏｇ ｐｈ ｏｂｍ ｐ 图 ６ 聚氨酯弹性体扫描探针显微图 ｏｂ ｍ ｈｎ ｏｍ ｎｎ ｎｇ ｐ ｏ ｇ６ｐｏ ｙｕ ｐｈ ｇ 图 ９ ＭＭＡ 聚氨酯弹性共体的扫描探针显微 ３Ｄ 图 ｐｏ ｈｎ ｏ ｂｏｄｙ ｎｎ ｎｇ ｇ９ ＭＭＡ ｙｕ ｏｂｍ ｏ ｏｐｙ３ｄｄ ｗ ｎｇ ｐ ４ 结 图 ７ 聚氨酯弹性体扫描探针显微 ３Ｄ 图 ｈｎ ｏｍ ｎｎ ｎｇｐ ｏｂ ｍ ｏ ｇ７ｐｏ ｙｕ ｏｐｙ３ｄｄ ｗ ｎｇ 论 １ 该复合 材 料 随 着 ＭＭＡ 的 含 量 从 ０ 增 加 到 ４０ 时 该 复 合 材 料 的 溶 解 率 从 ０ ０２９８ 减 少 到 了 这说明利用 ０ ００７１ ＭＭＡ 对这种材料的耐溶剂性能 有所提高同时 发 现 复 合 材 料 中 随 着 ＭＭＡ 的 加 入 材料的硬度由 ３４６ ８Ｈｖ 增加到 ７６６ ５Ｈｖ 这样就导致 改性后的复合材料有着较强的硬度
[1],,.[J].,2006,23(2): 165-166. [2] HurimotoY,ShirakawaK,Yoshioka M,etal.Liquefac- tionofuntreated WoodwithPolyhydricAlcoholsandits,2004.215-237. [10],. [M]. :,1990. Theresearchandmicroscopicanalysisonwearresistanceofmethyl methacrylate(mma)/polyurethaneelastomer LIYa-bin 1,2,HUANGJin-tian 2 (1.TianjinSodaPlant,Tianjin300450,China; 2.ColegeofMaterialsScienceandArtDesign,InnerMongoliaAgriculturalUniversity,Hohhot010018,China) 698 (2) MMA Applicationto Polyurethane Foams[C].New Zealand: MMA, ChemicalModificationofLignocelulosics,1992.163-172. [3] MMA 30%, MaldasD,ShiraishiN.[J].InternJPolymeric Mater,1996, 33(1):61-71. [4] Alma M H,Yoshioka M,YaoY G,etal.[J].WoodSci- (3) MMA enceandtechnology,1998,32(4):297-308., [5],,,.[J]., AFM MMA/ 2009,2. [6] Blom H P,TehJ W,RudinA.[J].JApplPolymSci, 1996,60:1405-1407. 0.11nm, 3.985nm, [7] Gibsonlt,CookseyB G,LitlejohnD,etal.[J].Anal 0.67nm, Chim Acta,1997,337:151-164. [8] LinR H.[J].JPolymSciChem,1990,27:97-116. : [9]. ( )[M]. : Abstract:Inordertoimprovetheutilizationofwoodinessmaterialdegradation,thispaperfirstlysynthesized polyurethaneelastomerusingliquiddegradationandcopolymerizatedthepolyurethaneelastomerbyutilizationof methylmethacrylate,whichfindsthatalongwiththeinitiationofmmatheperformanceandhardnessofcom- poundsolventresistancearebothincreased.whenthecontentofmmais30%,andatthispointitswastage, frictiontorqueandfrictioncoeficientarealthebiggest.asthejoiningofmmathematerialfracturechanged fromunderstandingfracturetotheaccurateunderstandingfractureshiftandtheyaretypicalbritlefractures. UsingtheAFMitcanbeobservedthat MMA/elasticpolyurethanetotalbodyformedbetweenthe molecular structureofinterpenetrating.throughthe microcosmiccomparison withunmodifiedpolyurethaneelastomer, ularareaincreased0.67nm,anditalsoshowstheformationofthecopolymer. Keywords:methylmethacrylate;elasticpolyurethanealtogether;wear;microscopicanaly sis 櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔櫔 ( 693 ) Preparationofnanoencapsulatedelectronicinkbycomplexcoacervation WANG Deng-wu 1,WANGFang 2,MASu-de 1,ZHAO Xiao-peng 3 (1.BasicDepartment,XijingUniversity,Xi an710123,china; 2.DepartmentofChemistry,ShaanxiInstituteofEducation,Xi an710061,china; 3.SmartMaterialsLaboratory,NorthwesternPolytechnicalUniversity,Xi an710072,china) theaveragesizeofmolecularincreases0.11nm,theaverageheightofmolecularincreased3.985nm,andmolec- Abstract:Inthispaper,thenanoencapsulatedelectronicinkcontainingTiO 2nanoparticlesmodifiedwithstearic aciddispersedintetrachloroethylene(tce)werepreparedbycomplexcoacervationusinggelatin-gumacaciaas walmaterials,andthefactorsefectedthedispersionabilityofsuspensionwasdiscussed,andthenanoencapsu- latedelectricinkswerealsoprepared.theresultsshowedthedispersionwasabletobeobtainedbyoptimizing thefactors.thenanocapsulespreparedwithuniformsizedistribution,andthetio 2nanoparticleswereencap- sulatedinnanocapsulesidentifiedbytem. Keywords:electronicink;TiO 2 ;stearicacid;microcapsule;complexcoacervation