English
聯系我們
網站地圖
郵箱
舊版回顧



寧波材料所在高分子復合材料3D打印方面取得進展

文章來源:寧波材料技術與工程研究所   發布時間:2019-05-10  【字號:     】  

  隨著科技的不斷發展進步,3D打印技術作為一種全新的數字化模擬制造技術應運而生并迅速發展。其中,熔融沉積技術具有設備簡單、工藝潔凈、運行成本低且不產生過多加工殘留物等優點,被廣泛應用于快速原型和教育等領域。但現有的熔融沉積材料主要以ABS和PLA等通用塑料為主,需要針對工業產品制造開發適合高強度工程塑料等材料的3D打印成型技術。

  中國科學院寧波材料技術與工程研究所增材制造重點實驗室許高杰團隊針對高性能工程塑料3D打印技術開展了一系列研究工作。選取了具有高堅韌度和抗疲勞特性的半晶態尼龍12和高強度聚醚酰亞胺作為基體,研究了熔體流變特性對熔融長絲燒結特性的影響,對高性能工程塑料的3D打印工藝參數、工業可用性進行了研究。研究發現,半結晶高分子具有較好的流變性能和快速燒結特性,在合適的打印條件下能夠獲得接近注塑件的力學性能。拓展了高溫高強度工程塑料在熔融沉積技術中的應用(Rapid Prototyping Journal, 2017, 23(6), 973–982. High Performance Polymers, 2019, 31(1): 97-106)。

  由于熔融沉積層層疊加成型過程產生的空隙會不可避免地降低3D打印產品的機械強度,嚴重制約了熔融沉積技術的應用推廣。研究人員在工藝研究的基礎上,開發了尼龍12/氧化石墨烯、尼龍12/碳纖維復合材料。研究發現兩種填料在熔融沉積成型過程中可實現取向分布,不僅有效提高了產品的機械強度(GNPs 7%和CFs 251.1%),還能夠對產品熱導率(提高51.4%)進行靈活調控(Journal of Applied Polymer Science, 2017, 134(39), 45332.; Materials & Design, 2018, 139: 283-292)。

  最近,研究人員以聚乳酸(PLA)為基體,以熱塑性聚氨酯(TPU)為填料,通過熔融沉積技術的整個加工流程實現了彈性體TPU原位成纖,纖維狀TPU的平均長度可以實現從67.24μm到103.72μm的精準調控。同時,TPU成纖有效改善了其與PLA基體的界面結合力。研究發現,3D打印形成的網格狀TPU可有效補償打印空隙對打印件力學強度的弱化效應,使產品的韌性達到甚至超過注塑水平。該熔融沉積原位纖維技術為制備高韌性聚乳酸復雜結構零件提供了簡便有效的方法(Macromolecular Materials and Engineering, 2019, 1900107)。

  以上工作得到國家自然科學基金(11574331, 11674335)和寧波市科技局(2016B10005, 2018A610009)的資助。

 

圖1 共混物熔融沉積成型流程圖

 

圖2 注塑(a)和打印(b)成型件中TPU的分布形貌

 

圖3 TPU含量和分布結構對制件沖擊強度的影響




(責任編輯:葉瑞優)

附件:

專題推薦

相關新聞


© 1996 - 中國科學院 版權所有 京ICP備05002857號  京公網安備110402500047號  聯系我們

地址:北京市三里河路52號 郵編:100864

爱购彩票www.igcp5.com 590361.com | www.42uf.com | www.327108.com | 731641.com | www.15sw.com | www.334272.com | www.v65.org | www.sv44.com | www.760128.com | www.843910.com | www.905539.com | www.24596.cc | www.95cm.com | www.023751.com | www.205515.com | www.361134.com | www.197121.com | www.570888.com | www.472883.com | www.354835.com | www.664585.com | www.489993.com | www.19rw.com | www.397225.com | www.gw72.com | www.7113.net | www.11ql.com | www.92fg.com | www.109710.com | www.311342.com | www.569744.com | www.705339.com | www.798167.com | www.926885.com | www.982950.com | 857540.com | 609248.com | 997074.com | www.kx68.com | www.36888.cc | www.140087.com | www.314905.com | www.551991.com | www.413046.com | 924981.com | www.004126.com | 五彩堂www.898364.com | www.19046.com | 61146.cc | www.293382.com | www.977824.com | www.831338.com | www.863749.com | www.1782.com | www.9657.wang | www.95wa.com | 178790.com | www.725668.com | 294343.com | www.556380.com | www.219584.com | www.979484.com | www.972557.com | 558147.com | www.656835.com | cai2444.com | www.zq83.com | www.00534.com | 梦想彩票www.33112s.com | 61631.com | 800141.com | 978054.com | 好彩头彩票www.23579c.com | www.883885.com | 735995.com | www.123077.cc | 355465.com | www.c70.cc | www.91ca.cc | www.hf12.com | 天天彩票www.83560.com | www.161295.com | www.596132.com | www.879341.com | www.21446.com | www.62kj.com | www.30ig.com | www.63386.com | www.md10.com | www.06972.com | www.12797.com | www.38669.com | www.119399.com | www.805588.com | www.907193.com | 405933.com | www.iu30.com | www.13555.com | www.9733.online | www.844744.com | www.005494.com | www.150123.cc | www.003594.com | www.841878.com | www.535761.com | www.81vw.com | www.61vl.com | 53735.com | www.358923.com | www.739077.com | 238212.com | www.74jg.com | www.730618.com | www.933735.com | www.bd96.com | www.7584.cc | www.247890.com | www.7580.biz | www.016110.com | www.540911.com | www.8750.com | fg16.com | www.ww89.cc | 238042.com | www.55bs.com | www.521838.com | www.581830.com | www.676805.com | 120898.com | www.388036.com | 359573.com | www.922816.com | www.948693.com | www.720079.com | if83.com | www.3482.cc | www.839812.com | www.338330.com | www.3749.cc | www.123585.com | www.240622.com | www.471326.com | 391980.com | www.981873.com | 好运彩吧www.097037.com | www.8901.com | 254892.com | www.4377.com | www.635697.com | www.9st.com | www.78394.com | www.221959.com | www.530362.com | www.056740.com | www.51wg.com | www.3042.xyz | www.034964.com | www.917288.com | www.7861.xyz | 28002.cc | www.371568.com | www.467146.com | www.369547.com | www.627871.com | www.554913.com | 大赢家彩票平台www.811030.com | www.32534.com | 147677.com | www.96336.com | www.968651.com | 763425.com | www.03js.com | www.429437.com | 686674.com | 588789.cc | 972141.com | www.092719.com | www.768318.com | www.801563.com | www.875307.com | www.951503.com | www.822899.com | www.905363.com | www.079064.com | www.318128.com | www.444322.com | www.qq95.cc | www.15tl.com | www.6985.org | www.87hg.com | www.385044.com | www.024393.com | www.571888.cc | www.99zw.com | www.057863.com | www.753977.com | www.8348.biz | www.132660.com | www.7550.vip | www.777525.com | www.673155.com | www.112036.com | www.994951.com | www.872068.com | www.775827.com | 福彩www.16878n.com | www.811826.com | www.814323.com | 190961.com | www.404000.cc | 110575.com | 65fw.com | www.539873.com | www.894288.com | www.513537.com | www.27jz.com | www.6jw.com | 59978.com | 075589.com | 974204.com | www.733966.cc | www.896668.cc | 282468.com | www.020534.com | www.u65.com | www.cp3595.com | www.333192.com | www.8437.cn | www.778420.com | www.918730.com | www.18944.com | www.234114.com | 72365.com | www.237351.com | 818合彩www.www.9889hc.com | 056049.com | www.465866.com | www.767520.com | www.733655.com | 339053.com | www.0958.org | www.412159.com | www.582939.com | www.05678.com | www.713283.com | www.3306.biz | www.260001.com | www.043399.com | www.784011.com | www.c52.club | www.gu97.com | www.089816.com | www.637308.com | www.049036.com | www.789.in | www.643411.com | www.505440.com | 11193.com | www.130663.com | www.22626.cc | www.992240.com | 47169.com | 654915.com | 41868.com | www.0996.net | www.871013.com | www.54lt.com | www.537208.com | www.398065.com | www.503381.com | 933160.com | www.399800.com | www.970767.com | 155806.com | 862530.com | www.bz29.com | www.213863.com | www.345567.com | www.953843.com | www.63be.com | 970604.com | www.71954.com | www.f41.cc | 博友彩www.219553.com | www.3289.bid | www.099615.com | 308818.com | www.494986.com | www.988948.com | www.370754.com | www.691973.com | www.055540.com | www.902683.com | www.982767.com | 760150.com | 37578.com | www.7972.biz | www.216725.com | www.502553.com | www.788186.com | www.826019.com | www.858672.com | 46aw.com | 660.hk | www.6795.org | www.770958.com | www.jj89.cc | www.94mw.com | 848617.com | www.951152.com | www.ep14.com | 福彩www.15355r.com | www.515313.com | www.854868.com | 477912.com | 085576.com--163a.com | 860038.com | www.487011.com | 254131.com | www.632196.com | 幸运彩票www.669308.com | www.984536.com | 999560.com--92209.com | 425092.com | www.23uy.com | www.356538.com | www.954052.com | www.51193.cc | www.051921.com | www.130740.com | www.135647.com | www.353813.com | www.360939.com | www.391202.com | www.540035.com | www.450655.com | www.475966.cc | www.230699.com | www.01am.com | www.371083.com | www.82ar.com | www.271024.com | 大赢家彩票平台www.287916.com | www.07687.com | www.1993.website | www.563585.com | www.fl55.com | www.220347.com | www.86as.com | www.753923.com | www.803189.com | www.981506.com | www.29512.cc | www.239822.com | www.226323.com | www.410052.com | www.801329.com | www.382023.com | www.872734.com | www.942581.com | www.026801.com | www.55356.cc | www.456738.com | www.534422.com | www.571056.com | www.392003.com | 66198.cc | www.247277.com | 293776.com | www.889830.com | www.888977.com | www.823096.com | www.808939.com | www.vr79.com | www.214111.com | q64.net | 910217.com | 057679.com | www.716277.com | www.821100.com | www.827995.com | www.771435.com | www.yj76.com | www.192605.com | www.512753.com | www.dmg333.com | 240522.com | www.969630.com | www.797771.com | 彩票5www.550243.com | 958457.com | www.sp35.com | www.005341.com | www.68977.cc | www.37xb.com | www.459000.com | www.874535.com | 128314.com | 652050.com | 089502.com | www.214854.com | 网易彩票www.07163x.com | www.je02.com | www.64nx.com | 920776.com | www.610253.com | www.436.bid | www.339481.com | 744260.com | www.il35.com | www.4768.xyz | 2924.cc | www.638009.com | www.686222.com | www.222174.com | www.267010.com | www.24wl.com | www.787012.com | www.jp72.com | www.118998.com | 500彩票www.647977.com | www.956253.com | 963461.com | www.46km.com | www.521390.com | 68彩票www.68689h.com | www.310111.cc | 983400.com | www.01860.com | www.360427.com | www.318930.com | www.595543.com | www.88589.cc | www.600534.com | 660682.com | www.1jm.com | www.810863.com | 701899.com | www.6457.cc | 500彩票www.701541.com | 339809.com | 686446.com | www.14oq.com | www.918002.com | www.888116.com | www.680111.cc | www.518806.com | 46yp.com | kf356.com | www.223596.com | www.3292.win | www.360528.com | 458467.com | www.018673.com | www.160978.com | 747457.com | 046887.com | www.358210.com | www.116991.com | www.105546.com | www.433223.com | www.260758.com | www.453444.com | 481368.com | www.ac47.com | www.239652.com | 292871.com | 350004.com | 875655.com | www.383989.com | www.626504.com | www.801524.com | www.5490.cm | www.1hg.cc | 015666.com | www.qf83.com | www.200552.com | 848577.com | 36661.com | 611147.com | www.365364.cc | www.604136.com | www.357019.com | 250825.com | www.126420.com | www.625751.com | www.363362.com | 618507.com | www.736653.com | www.379563.com | www.24847.com | www.28vm.com | www.495220.com | 320216.com | www.01ku.com | www.683570.com | 874711.com | 970733.com | www.934037.com | www.354255.com | www.341360.com | 379314.com | 731274.com | www.05ds.cc | www.81ev.com | www.lc12.com | www.762715.com | www.r57.com | www.6371.top | www.b81.club | www.737912.com | 238361.com | he03.com | 947827.com | 383629.com | www.878579.com | www.802798.com | www.880034.com | www.112308.com | www.557366.com | www.729948.com | www.sm01.com | www.8757.xyz | www.372204.com | www.753593.com | 094896.com | www.xf23.com | www.03sv.com | www.14384.com | 830037.com | www.13077.com | www.751388.com | www.11vt.com | www.623.mobi | www.954198.com | 056148.com | www.881.website | www.429.mobi | 326601.com | 790970.com | 677755.com | 瑞彩网www.980158.com | www.13906.com | www.22665.cc | www.801178.com | www.xa23.com | www.597652.com | www.265751.com | www.0379.tv | 4907.org | www.798189.com | 864608.com | www.964336.com | www.17iz.com | 933112.com | 691468.com | www.913159.com | www.544334.com | www.506721.com | 豪彩VIPwww.7fk.com | 999308.com | 602112.com | VIP彩票www.898953.com | 713456.cc | www.201980.com | www.039962.com | www.1197.net | www.221447.com | 187615.com | 119864.com | 089660.com | 327517.com | 065175.com | 13e彩票www.705059.com | www.770648.com | www.906262.com | 345258.com | www.588858.com | 931285.com | www.035135.com | www.791437.com | www.620319.com | www.874747.com | www.cai7644.com | www.418107.com | www.860800.com | 576451.com | www.55558.cc | www.ez63.com | www.99ss.com | www.593953.com | www.91ep.com | www.614558.com | 290819.com | www.757312.com | www.692627.com | www.959364.com | www.931196.com | www.006718.com | www.711839.com | www.ke96.com | 097333.cc | www.889575.com | 472533.com | www.27ny.com | www.z32.cc | www.0395.net | www.es1.com | www.1127.win | www.633408.com | www.785198.com | www.7748.in | www.1678.win | 840506.com | 028241.com | 267591.com | 22088.cc | www.261625.com | www.534023.com | 590176.com | www.411157.com | www.910698.com | www.612021.com | www.483500.com | www.068477.com | www.886070.com | 672102.com | 117601.com | www.012317.com | www.110157.com | www.920265.com | www.84ts.com | 吉利彩票www.66376h.com | 272756.com | www.905353.com | www.15756.cc | www.476317.com | www.379696.com | www.p12.xyz | www.102.cm | www.eo74.com | 948567.cc | www.77944.cc | www.119444.com | www.18db.com | 005761.com | 036693.com | www.980341.com | www.qu39.com | www.b87.net | www.517998.com | www.538672.com | www.296835.com | www.901851.com | 352540.com | 402299.com | www.86876.com | www.13222.cc | www.055388.com | www.053098.com | www.210935.com | www.593052.com | www.115417.com | www.075618.com | 3693.biz | www.101777.cc | www.358610.com | www.587300.com | www.35dw.cc | www.142524.com | www.581848.com | www.560261.com | www.505646.com | www.532605.com | 958914.com | www.293393.com | www.26895.cc | 769305.com | www.850218.com | www.358494.com | www.854523.com | www.wh08.com | 千禧彩票www.528qx.com | www.223480.com | www.089761.com | www.555794.com | www.390853.com | www.505556.com | www.972016.com | 441477.com | www.764252.com | www.386908.com | www.5829.org | 677691.com | www.941145.com | www.080509.com | www.321061.com | 220286.com | www.ui10.com | www.3pz.cc | www.5au.com | www.64yf.com | www.mk33.com | www.5908.com | www.61632.com | www.964871.com | www.354442.com | www.52cn.com | www.6607.shop | www.920533.com | 812234.com | www.437070.com | www.380452.com | www.3664.biz | www.161920.com | www.70hh.com | www.539636.com | www.223781.com | www.39189.com | www.994.cm | www.078054.com | www.024877.com | www.362610.com | www.310862.com | www.52449.cc | www.328822.com | www.372029.com | www.675202.com | www.62xa.com | www.8839.com | www.9231.online | www.ip60.com | www.68853.com | www.480074.com | www.g62.net | www.082357.com | www.t50.top | www.250033.com | www.132198.com | www.122486.com | www.27ey.com | www.1235.me | www.003717.com | www.12801.com | 421944.com | xy9122.com | www.b64.cc | 083619.com | www.59939.com | 375448.com | www.633075.com | www.660040.com | www.582083.com | www.393431.com | 813996.com | www.255871.com | www.115603.com | www.872612.com | www.114007.com | www.849592.com | 大赢家彩票网www.54400o.com | www.604953.com | www.ea84.com | 067687.com | 乐彩www.lczg3.com | www.239220.com | 609405.com | www.967608.com | www.798258.com | www.960145.com | www.716956.com | 535109.com | 657197.com | www.899271.com | www.637932.com | www.109851.com | www.718236.com | www.874019.com | www.873351.com | www.550876.com | www.788393.com | www.651202.com | www.375234.com | www.800372.com | www.715536.com | www.ik42.com | 272607.com | www.560891.com | www.316516.com | www.602053.com | www.193110.com | www.137709.com | www.cp402.com | 508764.com | www.fm48.com | www.867922.com | www.661029.com | www.802885.com | www.cr92.cc | 282308.com | www.230045.com | 694883.com | www.230014.com | www.70px.com | www.611116.cc | www.926917.com | 500彩票网www.622307.com | 福彩网www.60007k.com | 403868.com | www.302613.com | www.085526.com | www.301262.com | www.8409.com | 如意彩票www.931518.com | www.291708.com | www.335515.com | www.230422.com | www.948678.com | www.964130.com | www.951284.com | www.791112.com | www.61rn.com | www.1911.net | www.5123.top | www.9701.org | www.7312.cc | www.260967.com | www.cp0158.com | www.84xv.com | 大赢家彩票网www.630155.com | 190058.com | 彩票5www.550174.com | www.865529.com | www.570315.com | www.33690.com | www.741518.com | www.813841.com | 627535.com | www.028895.com | 纵横彩票www.903839.com | www.032651.com | www.285541.com | www.605119.com | www.493986.com | www.380088.com | www.366823.com | www.774567.com | www.oe87.com | www.796548.com | 974852.com | www.gg09.com | www.184370.com | www.179509.com | www.974369.com | 310307.com | www.71570.com | www.319837.com | www.69zo.com | 222145.com | 梦想彩票站www.43131u.com | www.9939.bid | www.964.cm | www.0911.pro | www.4706.top | www.664252.com | www.836213.com | www.790706.com | 彩多多www.78949c.com | 639486.com | 62386.com | www.35055.cc | www.248301.com | www.123691.com | 207409.com | 830295.com | 849958.com | www.939728.com | www.022628.com | www.580385.com | 793073.com | 31600.com | www.1713.vip | www.222509.com | www.0313.biz | www.358709.com | www.ft04.com | www.258023.com | www.794851.com | www.658568.com | www.640251.com | www.219022.com | www.812838.com | www.315754.com | 509971.com | www.292168.com | www.325769.com | www.811885.com | www.816637.com | www.669331.com | www.no53.com | www.ba81.com | www.434178.com | www.7283.org | www.411452.com | www.235589.com | www.0278.biz | www.244682.com | www.488884.com | www.75081.com | www.5849.xyz | www.259559.com | www.7577.net | www.