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Nanomontmorillonite Intercalate Polymeric Nylon Barrier Packaging Material

Posted on:2009-09-08Degree:MasterType:Thesis
Country:ChinaCandidate:Y ZhangFull Text:PDF
GTID:2132360245968411Subject:Materials science
Abstract/Summary:PDF Full Text Request
In this paper, according to the suspension property, dispersibility, whiteness of special requirement of nylon-6/montmorillonite in situ composite engineering , review the influence factors of preparation super decentralization organic montmorillonite. The main material is sodium montmorillonite comparison organic montmorillonite from USA(NOMMT) and domestic organic(COMMT) montmorillonite. Hexadecyl trimethyl ammonium bromide is intercalated.Research and contrast the technics of mechanical way, ultrasonic surge and built-up mechanical way and ultrasonic surge, achieve better arts and crafts and condition, obtain super decentralization organic montmorillonite who's organic permutation ratio is over 90 percent through optimize experimentation and layer space between is 3.13nm greater than NOMMT's(2.6nm) and COMMT's(1.6nm) exclusive use montmorillonite mating matched system for nylon-6/montmorillonite in situ composite continuum polymerization. Solve succeed the easy sedimentation of difficult problem industrialization production montmorillonite.in hexanolactamAccording to much higher demand of barrier in this programme, design structure model of High Barrier nylon membrane by oxygen nanomontmorillonite, develop a feasible route preparation, then oxygen agent attached to montmorillonites , and also using XRD, SEM and small-angle laser characterize as its micro-structure, interlayer distance is up to 4.1nm, the specific surface area is as high as 1586.42m2/kg,augment nearly 8 times. Median drive reduce from 17.29μm to1.53μm,three times less than NOMMT.Macro-physics-testing is up to the national standards of industrialization. Polymerization experimental results show that the new OMMT also has good polymerization properties. Polymerization products of high brightness, high rate of conversion features resolve montmorillonite impact problem of nylon polymerization during the existing research work. Nanomontmorillonite used for passive barrier layer, oxygen used for activator agent for the two synergies, the PA6 barrier will greatly improve.
Keywords/Search Tags:Montmorillonite, Oxygen agent, PA6/montmorillonites nanocomposites, Barrier
PDF Full Text Request
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