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石墨烯 in polymer in function
以石墨烯 is table/sheet large type sheet/slice material its structure and property can formed is world scope/range research 焦点之一, utilizing sheet/slice excellent features, through and its it polymer material combined can composite/compounding material new excellent property can. its in polymer /石墨烯 composite/compounding material research is field/area in very important 一 组 formed separation, in made process in through will 石墨烯 独 features can from micro mono sheet/slice to macro block 体, can 创造出一 types new type composite/compounding material, its can will nano material in force 学, hot, light, electrical and other excellent property can and polymer material advantages versus combined. currently, 基于石墨烯 used for reinforcement polymer already formed separation 商业化 product, 包括网球拍, 自行车, slip sheet/plate and other high 端体育 use product, product amount still in increase, its it type type application in research in. in small overview in recent years 石墨烯 reinforcement polymer in made 备, structure property application and function property application and other research.
made 备 polymer /石墨烯 composite/compounding material
in electronics device parts field/area application in usually need non a small amount of 石墨烯即 can, is in large more combined 石墨烯 reinforcement polymer formed composite/compounding material in 石墨烯 use amount need versus for large very more, therefore a large amount of use 石墨烯时 cost is need heavy factors, another and used for electronics device parts field/area 石墨烯 versus ratio, used for composite/compounding material in 石墨烯 property can requirements versus for relatively low. although currently research already table/sheet make add non a small amount of 石墨烯(百 separation 之几 体积 separation or more low) can significantly improvement composite/compounding material force and electrical property can, however and its it formed carbon material, 例如炭黑, carbon fiber and powder versus ratio, 石墨烯 完 full development also need in cost and output/production volume 方面进一步 improve/increase competition force, make in polymer in add separation 之几 石墨烯, most cost significantly increase, cost increase will retardant its 规模化 industrial application, especially is very difficult will 石墨烯 and other used for property more high, add value relatively low large amount product. therefore currently 以石墨烯 is additives composite/compounding material main applications high add value product, high 端体育 use product, aviation aerospace and material equipment and other. in composite/compounding material in use 石墨烯时, must positive balanced cost and quality 两 方面, is in 实验室 made high quality 石墨烯(ratio through chemical gas versus or liquid versus and other methods) and industrial grade production 石墨烯(usually use machine 械– chemical or hot – chemical process) between also in obvious difference.
another, 石墨烯 reinforcement polymer formed composite/compounding material processing technology also need and using/adopting industrial technology versus 兼容, especially is need achieve will 石墨烯 has add to polymer in formed composite/compounding material. currently 石墨烯 in solvent agent or polymer in dispersion need has machine solvent agent or surface active property agent and other, 但无论 using/adopting types additives used for 石墨烯 剥离 and dispersion, most product in has different degree 吸附残留, this additives separation for 石墨烯 and polymer versus function can can generate effect/influence, from low 化石墨烯 modified 效果. process is use already in polymer field/area 规模并 formed application polymer/macromolecule dispersion additives and other, currently research table/sheet polymer/macromolecule dispersion additives in multiple sheet/slice 材(如石墨烯, nitrogen 化硼, 二硫化钨, 硫化钼, material and material and other) in tool has good and dispersion 效果, therefore polymer/macromolecule dispersion additives more combined used for 石墨烯 reinforcement polymer made composite/compounding material.
polymer /石墨烯 composite/compounding material structure property application
large more 数石墨烯 composite/compounding material research in in polymer composite/compounding material upper, hot solid property polymer, thermoplastic property polymer and other, its in low filling amount 石墨烯 more used for improve/increase 基体材 material conductive property and heat stabilized property and other, high filling amount 石墨烯 more used for structure reinforcement. currently more research in using/adopting made process, calendering molding, di screw extrusion, injection molding and other, 都适于 expand 展, large rear industrial grade application. in addition, method polymerization technology development is 石墨烯 in composite/compounding material processing process in stability property provide new 思路, F. Beckert and other in 边缘羧化 石墨烯 upper negative high active property iron ethylene polymerization catalytic agent, is through polymerization made polyethylene (PE) /石墨烯 nano composite/compounding material. Wang Jialiang and other through free radical polymerization made 备PMMA/官 can 化石墨烯 nano composite/compounding material. 当石墨烯 quality separation is 0.5% 时, and pure PMMA versus ratio, nano composite/compounding material tensile elastic property modulus and tensile strength separation increase 151% and 115%. N. E. Miri and other different quality ratio (2∶1, 1∶1 and 1∶2) fiber nano 晶体(CNC) and GO nano sheet/slice (GON) formed composite/compounding nano filler, rear made polyethylene (PE) alcohol (PVA) nano composite/compounding material, and pure PVA versus ratio, 含5% composite/compounding nano filler (CNC and GON quality ratio is 1∶2) PVA nano composite/compounding material tensile elastic property modulus, tensile strength and tough property separation improve/increase 320%, 124% and 159%, fracture elongation upper maintain 不变. in addition, 玻璃化转变 temperature degree and nano composite/compounding material wet property to improvement. ZengXiaopeng and other use solvent liquid mixed combined method made PMMA/石墨烯 nano composite/compounding material, add quality separation is 1% 石墨烯 rear, nano composite/compounding material 玻璃化转变 temperature degree improve/increase 37℃; in add quality separation is 0.1% 石墨烯 rear, nano composite/compounding material thermal expansion coefficient reduce 68%. Lan Yan and other thermoplastic polyurethane (TPU) (PUR-T) and polypropylene (PP) (PP) as is polymer 基体, use micro type di screw extrusion mechanism PP/PUR-T/ also 原GO (RGO) composite/compounding material, 当RGO quality separation is 0.5% 时, composite/compounding material tensile strength and fracture elongation separation improve/increase 341.9% and 354.3%. P. Baruah and other through solvent liquid mixed combined method made quality separation separation is 0.1%, 0.25% and 0.5% GO filling ultra- 支化 ring oxygen resin (HBE) nano composite/compounding material, use polyamide (PA) solid agent in 120℃ for its solid 化. will 0.5% GO add 入HBE in rear, material bonding strong/high degree improve/increase 189%, tough property improve/increase 263%, tensile strength improve/increase 161%, fracture elongation improve/increase 159%.
石墨烯 surface chemical property for composite/compounding material property can has important effect/influence. S. Chandrasekaran and other 发现添 add hot also oxidation 石墨烯(TRGO) ring oxygen resin composite/compounding material fracture tough property most high, its tough property improvement obvious excellent carbon nano tube/pipe system. need attention/notes is its also table/sheet 明石墨烯 filling amount in most excellent scope/range, amount add 反而会 make composite/compounding material fracture tough property decline.
Bian Jun and other use melt composite/compounding method made terephthalic acid ester (PBT)/ micro 波剥离GO nano composite/compounding material, 发现石墨烯 in PBT in to nucleating agent function, reinforcement nano composite/compounding material in PBT crystallization property;当石墨烯 quality separation is 4% 时, nano composite/compounding material tensile strength increase 20%, in 石墨烯 quality separation is 8% 时, tensile strength increase 201%. C. S. Boland and other liquid versus production 石墨烯/ nitrogen nano sheet/slice as is filler, 以PVA as is 基体, through wet method filament technology made composite/compounding fiber. research 发现, fiber tensile elastic property modulus and strong/high degree nano sheet/slice separation increase rise high rear reduce, in nano sheet/slice separation to 20% 时, tensile elastic property modulus and tensile strong/high degree to most large value (separation to 30 GPa and 260 MPa).
polymer /石墨烯 composite/compounding material function property application
石墨烯 and polymer combined can 构造三维 more polymer /石墨烯 composite/compounding material, Yu Mei and other through sheet/plate electrical method in 三维石墨烯网络 upper combined formed high degree has poly amine nano 锥阵列, its in poly amine nano in 三维石墨烯网络 surface 垂直排列, this 样 形貌 is electrical understanding 质离子 provide 无障碍 expand dispersion 通道, increase material ratio surface 积; in 0~0.7 V electrical 势窗口 inner, composite/compounding material tool has high rate property and good ring stability property. in 10 A/g density lower, its electrical is 1 A/g density lower electrical 容 88.5%; in electrical – 放 electrical testing ring 1 000 次 rear material still maintain 93.2% 初始 electrical 容.
polymer /石墨烯 conductive composite/compounding material can used for material battery or chemical battery. poly amine /石墨烯 composite/compounding material foam can used as micro material material battery cationic 极, its can through CVD method in foam 状石墨烯 upper 原位沉积 poly amine made to, is excellent micro material material battery cationic material. another, Li Sha and other utilizing 石墨烯 high electrical rate and conductive polymer oxidation also can force, research types high property can poly 吡咯(PPy)/RGO anionic material, used for can 植入, material is electrical understanding 质 生 material versus property zinc / polymer battery.
石墨烯 and conductive polymer function composite/compounding material by research used for made 备存储 device parts, T. Mosciatti and other manufacturing more function 石墨烯– polymer mixed combined film tube/pipe, SiO2 基底 upper 沉积 石墨烯 electrical can can through gas in hot 处理进行 adjustment, from achieve 石墨烯– semi polymer mixed combined film tube/pipe electrical from to large small can 调. LiuZhaoyang and other through spray coating poly oxygen 乙基噻吩- polystyrene (PS) acid /石墨烯 mixed combined liquid made to large 面积, high conductive property and high force property can 石墨烯 composite/compounding material film, is electrical made has machine light electrical device property can and has Si machine light electrical device versus 当. composite/compounding material film 进一步 optimization also can used for transparent electrical and its it new flexible device parts, is can ultra- grade electrical container and electronics table/sheet and other development 铺平道路. in addition, 刘虎针 for PTFE (PTFE) thermal properties and wear resistant loss property can relatively issues, will 石墨烯经 oxidation hydrogen 预处理 rear, again use silicon coupling agent for its surface modified, rear using/adopting cold pressure method made PTFE/石墨烯 composite/compounding material. 随 石墨烯 use amount increase, composite/compounding material volume resistivity decline, in 石墨烯 quality separation is 0%~2% 时, composite/compounding material volume resistivity basic 处于同一数 amount grade, still is insulation material;当石墨烯 quality separation 数由0% increase 至2%时, composite/compounding material thermal conductivity obvious improve/increase, abrasion loss amount obvious reduce, friction coefficient rise high rear reduce, 但变化幅 degree relatively small. and modified 石墨烯 versus ratio, silicon coupling agent modified 石墨烯 filling composite/compounding material tool has more high thermal properties and scratch abrasion loss property can.
结语
以石墨烯 is table/sheet sheet/slice is polymer belt/tape various excellent property can, type composite/compounding material can through nano sheet/slice types type, and use amount, adjustment composite/compounding material structure and property 质, from 而适配于 different application demand. currently, polymer /石墨烯 composite/compounding material already in from research toward 商业化 application 转化, is currently research for industrial application also in 不足, also has very more and machine has 待继续 research.
部 separation 摘自: 刘伟伟博士刊登 in engineering plastics application 2017 year, 第45 卷, 第1 期 “ polymer /石墨烯 composite/compounding material research 进展” one article.
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