本文選題：軟質(zhì) + 3D打印��； 參考：《浙江理工大學(xué)》2017年碩士論文

【摘要】：3D打印多以硬質(zhì)材料為主,打印件在紡織服裝打樣等柔軟性要求較高的領(lǐng)域的應(yīng)用范圍受到限制。因此,對于軟質(zhì)材料適用于3D打印的研究就顯得很有必要。本文首先對熔融沉積成型中軟質(zhì)尼龍3D打印線材的制備工藝和打印工藝進(jìn)行了優(yōu)化;然后對光固化成型中PUA預(yù)聚物樹脂的合成工藝進(jìn)行了研究;最后對光固化樹脂配方進(jìn)行了討論,并對樹脂的光固化特性進(jìn)行了研究。首先,以軟質(zhì)材料PA12/3533為基材,通過雙螺桿擠出機(jī)加工成3D打印線材,由桌面熔融沉積成型3D打印機(jī)進(jìn)行打印,并對其線材制備工藝和打印工藝進(jìn)行研究。結(jié)果表明:在PA12/3533材料達(dá)到分解溫度之前,材料的加工溫度范圍較寬泛,較適合進(jìn)行擠出和打印,并且加工溫度和擠出速率對實(shí)驗(yàn)具有非常重要的影響。在PA12/3533軟質(zhì)3D打印線材的制備過程中,擠出溫度較高,則線材受自重影響較大而自然垂落,無法牽伸;擠出溫度較低,則熔體粘度較大,流動阻力較大,無法擠出;適當(dāng)提高螺桿轉(zhuǎn)速和喂料轉(zhuǎn)速對于線材的穩(wěn)定擠出是有利的。對于軟質(zhì)PA12/3533材料,較適合的3D打印線材擠出工藝參數(shù)為:四區(qū)段溫度分別設(shè)置為180℃、185℃、190℃、195℃,螺桿轉(zhuǎn)速35 r/min,喂料轉(zhuǎn)速20 r/min。在PA12/3533軟質(zhì)線材的3D打印過程中,打印頭速度移動不宜過快、層高不宜過高、打印溫度也不宜過高,否則打印件的力學(xué)性能變差。對于PA12/3533軟質(zhì)打印線材,較合適的3D打印工藝參數(shù)為:打印頭移動速度40 mm/s、層高為0.10 mm、打印溫度200℃。在上述優(yōu)化工藝的基礎(chǔ)上,本文還探索了軟質(zhì)材料PA12/3533在紡織服裝打樣及工業(yè)生產(chǎn)中的應(yīng)用,打印出的連衣裙和車輪模型具有良好的造型風(fēng)格和柔韌性能。其次,結(jié)合分子結(jié)構(gòu)設(shè)計(jì)合成了光固化樹脂的重要組成部分——PUA預(yù)聚物樹脂,并對其合成工藝進(jìn)行了研究。結(jié)果表明:適當(dāng)提高第一步反應(yīng)溫度和降低第二步反應(yīng)溫度以及適量加入催化劑和阻聚劑有利于縮短反應(yīng)時間、提高反應(yīng)效率、減少雙鍵損失。本實(shí)驗(yàn)所合成的PUA預(yù)聚物樹脂的優(yōu)化工藝為:第一步反應(yīng)溫度65℃,反應(yīng)3 h,催化劑DBTDL質(zhì)量分?jǐn)?shù)0.10%;第二步反應(yīng)溫度55℃,反應(yīng)4 h,催化劑質(zhì)量分?jǐn)?shù)0.15%,阻聚劑HQ質(zhì)量分?jǐn)?shù)0.20%;此條件下合成的PUA預(yù)聚物樹脂生成了聚氨酯鏈段結(jié)構(gòu)。最后,制備了一種軟質(zhì)光固化PUA樹脂,并研究了光引發(fā)劑種類和含量以及稀釋劑種類和含量對固化件力學(xué)性能的影響。結(jié)果表明:實(shí)驗(yàn)制備的光固化樹脂較柔軟、機(jī)械性能較好;光引發(fā)劑的種類和含量對樹脂的光固化速度影響較大;稀釋劑的種類和含量主要影響光固化后樹脂的力學(xué)性能。就本實(shí)驗(yàn)而言,當(dāng)光引發(fā)劑TPO質(zhì)量分?jǐn)?shù)為3%時,光固化時間最短;當(dāng)稀釋劑2-EHA的質(zhì)量分?jǐn)?shù)為10%時,光固化樹脂機(jī)械特性最好。按照此配方制備的光固化PUA樹脂,經(jīng)405 nm激光(功率為1 W)掃描照射后能夠快速固化,且層間粘結(jié)力較佳、固化件柔軟性較好,有望進(jìn)一步開發(fā)成軟質(zhì)光固化3D打印樹脂。
[Abstract]:3D printing is mainly hard materials, and the application scope of the printing parts in the textile and garment proofing is limited. Therefore, it is necessary to study the application of soft materials to 3D printing. In this paper, the preparation and printing process of soft nylon 3D printing wire in molten deposition molding are first carried out in this paper. The synthesis process of PUA prepolymer resin in light curing was studied. Finally, the formulation of light curing resin was discussed and the light curing characteristic of the resin was studied. First, the soft material PA12/3533 was used as the base material and the double screw extruder was added into 3D to print the wire, and the 3D printing was formed by the desktop melting deposition. The machine is printed, and the preparation and printing process of the wire rod are studied. The results show that the temperature range of the material is wide before the PA12/3533 material reaches the decomposition temperature, it is more suitable for extrusion and printing, and the processing temperature and the extrusion rate have a very important influence on the experiment. In the PA12/3533 soft 3D printing wire rod, the wire rod is printed. In the preparation process, the extrusion temperature is high, the wire rod is greatly influenced by the weight of self weight and can not be drafted, and the extrusion temperature is low, the melt viscosity is higher, the flow resistance is larger and the extrusion speed can not be extruded. It is favorable to improve the screw speed and feed speed for the stable extrusion of wire rod. For soft PA12/3533 material, it is more suitable for 3D printing. The extrusion parameters of wire rod are as follows: four section temperature is set at 180, 185, 190, 195, screw speed 35 r/min and feed speed 20 r/min. in 3D printing of PA12/3533 soft wire. The speed of printing head should not be too fast, the layer height should not be too high, and the printing temperature should not be too high. Otherwise, the mechanical properties of the printing parts are worse. To PA 12/3533 soft print wire is more suitable for 3D printing process parameters: the moving speed of the printing head is 40 mm/s, the height of the layer is 0.10 mm and the printing temperature is 200. On the basis of the above optimization process, the paper also explores the application of the soft material PA12/3533 in the textile and garment proofing and industrial production, the printed dress and the wheel model are good. Secondly, the PUA prepolymer resin, an important component of the light curing resin, was designed and synthesized by the molecular structure, and the synthesis process was studied. The results showed that the first step reaction temperature and second step reaction temperature were improved and the catalyst and inhibitor were added to shorten the first step reaction temperature. The reaction time, improve the reaction efficiency and reduce the loss of double bond. The optimization process of PUA prepolymer resin synthesized in this experiment is: first step reaction temperature 65 C, reaction 3 h, catalyst DBTDL mass fraction 0.10%; second step reaction temperature 55 C, reaction 4 h, catalyst mass fraction 0.15%, HQ mass fraction 0.20%; under this condition, the synthesized PUA prepolymer In the end, a soft light cured PUA resin was prepared. The effects of the type and content of the photoinitiator and the type and content of the diluent on the mechanical properties of the cured parts were studied. The results showed that the light curing resin prepared by the experiment was more soft and the mechanical properties were better; the types and content of photoinitiators were good. The light curing rate of the resin is greatly influenced; the type and content of the diluent mainly affect the mechanical properties of the resin after light curing. As to this experiment, when the mass fraction of the photoinitiator TPO is 3%, the light curing time is the shortest. When the mass fraction of the diluent 2-EHA is 10%, the mechanical properties of the light cured tree grease are the best. PUA resin can quickly solidify after 405 nm laser (power of 1 W), and the bonding force between layers is better and the softness of the solidified part is better. It is expected to be further developed into a soft light cured 3D printing resin.

【學(xué)位授予單位】：浙江理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP391.73

【相似文獻(xiàn)】

相關(guān)期刊論文 前3條

1 洪小芹;趙志敏;李鵬;王田虎;;基于光纖傳感的光固化材料臨界曝光量測試[J];鄭州大學(xué)學(xué)報(工學(xué)版);2009年01期

2 李雙;李云慶;王家喜;;聯(lián)苯單元丙烯酸酯的合成及光固化研究[J];信息記錄材料;2007年04期

3 ;[J];;年期

相關(guān)會議論文 前3條

1 李鵬;趙志敏;洪小芹;郭林峰;;基于光固化材料的自修復(fù)光纖微彎傳感器[A];2007年全國博士生學(xué)術(shù)論壇（材料科學(xué)與工程學(xué)科）論文集[C];2007年

2 孫芳;黃毓禮;A.Korigodski;G.Popova;V.Kireev;;新型聚醚與有機(jī)硅多丙烯酸酯的感光性及其光固化材料性能研究[A];2000年非銀鹽信息記錄材料學(xué)術(shù)報告會論文集[C];2000年

3 洪嘯吟;;光固化膠粘劑的發(fā)展[A];北京粘接學(xué)會第四屆學(xué)術(shù)年會-膠黏劑論文集[C];1992年

相關(guān)重要報紙文章 前2條

1 關(guān)訊;我國光固化材料發(fā)展勢頭迅猛[N];中國包裝報;2008年

2 記者胡浩;天洋推出防火保溫光固化氟碳飾面一體化板[N];中國建材報;2011年

相關(guān)碩士學(xué)位論文 前7條

1 李娟;基于微噴工藝的低粘度快固化型三維打印材料的研究[D];南京航空航天大學(xué);2015年

2 姜丹丹;光固化3DP材料的增韌改性及其收縮性能研究[D];南京航空航天大學(xué);2016年

3 王祥;水溶性光固化3D打印支撐材料的制備與性能研究[D];南京航空航天大學(xué);2016年

4 張吉;軟質(zhì)尼龍材料3D打印與軟質(zhì)PUA光固化材料的研究[D];浙江理工大學(xué);2017年

5 江峰;齒科用可見光固化膠粘劑的制備及性能研究[D];中北大學(xué);2007年

6 洪小芹;用于智能復(fù)合材料自修復(fù)的光固化材料的制備及性能研究[D];南京航空航天大學(xué);2009年

7 郭平;乙烯基環(huán)氧樹脂的可見光固化及性能研究[D];武漢理工大學(xué);2010年

，

本文編號：1836290