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1、混炼器加工的聚合物结构与性能+分散相尺寸的控制 特殊设备中的混合形态 Pan-Milling Miniature mixers MINI-MAX Molder+无机填料对形态的影响+加工的影响因素Sheet FormationSundararaj U , Dori Y, Macosko C W. Polymer, 1995, 36: 1957the effect of viscosity ratio for changing PP viscosityeffect of shear ratePP3050/ PS666DPan-milling mixingMorphology of: (a) PP
2、/PA6 (80/20, w/w) blend; (b) PP/PA6 moulded from mixed PP/PA6 (80/20, w/w) powder pan-milled for 20 cycles.FTIR spectra of: (a) PP; (b) PP extracted from PP/PA6 (80/20,w/w) compound powder pan-milled for 10 cycles; (c) PP/PA6 (80/20, w/w)compound powder pan-milled for 20 cyclesZhe Chen, Q. W. (2001)
3、. Pan-milling mixing - a novel approach to forming polymer blends and controlling their morphology.Polymer International 50(9): 966-972.Pan-milling mixingZhe Chen, Q. W. (2001). Pan-milling mixing - a novel approach to forming polymer blends and controlling their morphology.Polymer International 50(
4、9): 966-972.Melt Mixing of Polycarbonate with Multi-Walled Carbon NanotubesTEM micrographs of PC/MWNT prepared from APAM(a, d, g, j), MBM(b, e, h, k) and DACA(c, f, i, l). MWNT content is 0.50 wt.-%in (a), (b) and (c); 0.75 wt.-%in (d), (e) and (f); 1.00 wt.-% in (g), (h) and (i); and 1.25 wt.-% in
5、(j), (k) and (l).Bin Lin, U. S. P. P. (2006). Melt Mixing of Polycarbonate with Multi-Walled Carbon Nanotubes in Miniature Mixers. Macromolecular Materials and Engineering 291(3): 227-238Melt Mixing of Polycarbonate with Multi-WalledCarbon Nanotubes(a) AFM micrographs (left: height image; right: amp
6、litude image) of MWNT recovered after mixing from the APAM;(b) length distribution of the MWNT recovered after mixing in the APAM. MWNT were recovered from a composite with 0.75 wt.-% MWNT by dissolving PCCompared to the original length of 1015 nmImprovement of a gram-scale mixer(a) MINI-MAX Molder
7、CS 183MMX;(b) melt mixing with Teflon disk and steel balls PP/HIPS 70/30Mixing Conditions and Average Particle Size (D) After Mixing at 180C for 5 minSetting Teflon Disk and Adding Small Steel Balls; Number of Balls Was VariedBin Yang, M. S. T. K. T. I. (2006). Improvement of a gram-scale mixer for
8、polymer blending.Journal of Applied Polymer Science 99(1): 1-5.减小混炼器加工的聚合物结构与性能+分散相尺寸的控制+特殊设备中的混合形态无机填料对形态的影响 Nanoclay Carbon Nanotube+加工的影响因素Nanoclay-Induced Morphology DevelopmentOptical images of surviving PPCL fibrils after a strain of 341 located near the rotor surfaces. (a) PA6-PP1 blend and (
9、b) PA6-PPCL blend. Dhawal P. Dharaiya, S. C. J. (2005). Nanoclay-induced morphology development in chaotic mixing of immiscible polymers.“ Journal of Polymer Science Part B: Polymer Physics 43(24): 3638-3651Nanoclay-Induced Morphology DevelopmentFrequency distribution of droplet diameter for PA6-PPC
10、L blend at various strains. The inset shows frequency distribution at strain of 341Thread breakup of fibers of (a) PP2 and (b) PPCL1 in PA6/12 films at 180 . The initial thread diameter in each case was 60 nmOrganoclay Nanocomposites MorphologySEM micrographs for foams of PLA and PLA nanocomposites
11、with different weight fraction of 30B: (a) PLA, original magnification 50; (b) PLA/1 wt % 30B, original magnification 200; (c) PLA/2 wt % 30B, original magnification 200; (d)PLA/5 wt % 30B, original magnification 250Yingwei Di, S. I. E. D. M. L. N. (2005). Poly(lactic acid)/organoclay nanocomposites
12、: Thermal, rheological properties and foam processing.Journal of Polymer Science Part B: Polymer Physics 43(6): 689-698.X50X200X200X250混炼器加工的聚合物结构与性能+分散相尺寸的控制+特殊设备中的混合形态+无机填料对形态的影响加工的影响因素 Time . Quiescent Annealingmixing conditions on the morphology and properties?loufov,. (2003). Effect of mixing c
13、onditions on the morphology and properties of polystyrene/polyethylene blends compatibilized withstyrene-butadiene block copolymers. Journal of Polymer Science Part B: Polymer Physics 41(6): 609-622.20 minTimeTimeTimeTime2 2 2 2Coalescence and interfacial tensioncoalescencecoalescencecoalescencecoal
14、escenceInterfacial Interfacial Interfacial Interfacial tensiontensiontensiontensionCompatibilizerCompatibilizerCompatibilizerCompatibilizer1 1 1 1Molecular WeightMolecular WeightMolecular WeightMolecular Weight3 3 3 3Quiescent AnnealingInitial Pore Radius RInitial Pore Radius R0 0 After Blending and
15、 Viscosity After Blending and Viscosity Ratios Ratios p p (Viscosity of PS/Viscosity of HDPE) at (Viscosity of PS/Viscosity of HDPE) at 200C200CSEM micrographs for PS1/PE1 50/50 SEM micrographs for PS1/PE1 50/50 (a) non annealed sample; (b) annealed at 180C for 10 min; (c) annealed at 200C for 30 mi
16、n; and (d) annealed at 180C for 30 min. (The white bars denote 100 um).Zhenhua Yuan, B. D. F. (2005). Coarsening of immiscible co-continuous blends during quiescent annealing. AIChE Journal 51(1): 271-280.Quiescent AnnealingPresence of thin rods/threads in SEM micrographs of PS1/PE1 50/50 annealed a
17、t 190C for 45 minZhenhua Yuan, B. D. F. (2005). Coarsening of immiscible co-continuous blends during quiescent annealing. AIChE Journal 51(1): 271-280.Quiescent Annealing(a) the thin rod merges/flows into thick ones (a) the thin rod merges/flows into thick ones at at both sides, the thick rod merges
18、 into a much both sides, the thick rod merges into a much thicker one at the same timethicker one at the same time(b) the thin rod becomes thinner during the (b) the thin rod becomes thinner during the merging processmerging process(c) the thin rod breaks/splits(c) the thin rod breaks/splits(d) the
19、residual parts retract/shrink to the thick (d) the residual parts retract/shrink to the thick rodsrods. .Quiescent AnnealingPS1/PE1 50/50 annealed at 200 for 10 minwithout SEBSwith15%SEBSannealed at 200 for 60 minZhenhua Yuan, B. D. F. (2006). Influence of the efficacy of interfacial modification on
20、 the coarsening of cocontinuous PS/HDPE blends during quiescent annealing. Journal of Polymer Science Part B: Polymer Physics 44(4): 711-721.Quiescent AnnealingSEM micrographs of 50/50 PS/PE blends with 1% PSPE block copolymers after mixing at 50 rpm for 10 min at 170 : PSPE(a) no block copolymer, (
21、b) 6k,(molecular weight)(c) 40k, (d) 100k and (e) 200k.Galloway, Jeffrey A.; Jeon, Hyun K.; Bell, Joel R.; Macosko, ChristopherW. Block copolymer compatibilization of cocontinuous polymer blends. Polymer (2005), 46(1), 183-191Quiescent Annealing1 退火可以使共连续相粗化coarsening2 界面改性剂可以抑制连续相的粗化原因a 改性剂迁移至体系表面，减小界面张力 b 在连续相内部形成胶束3 改性剂的分子量对抑制有明显的影响
