CN111890650A - 一种3d打印用pla/tpu双组份线材及其制备方法 - Google Patents
一种3d打印用pla/tpu双组份线材及其制备方法 Download PDFInfo
- Publication number
- CN111890650A CN111890650A CN201910367793.3A CN201910367793A CN111890650A CN 111890650 A CN111890650 A CN 111890650A CN 201910367793 A CN201910367793 A CN 201910367793A CN 111890650 A CN111890650 A CN 111890650A
- Authority
- CN
- China
- Prior art keywords
- tpu
- pla
- printing
- wire
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/28—Storing of extruded material, e.g. by winding up or stacking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/325—Calcium, strontium or barium phosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
Abstract
本发明提供一种3D打印用PLA/TPU双组份线材及其制备方法。采用自主开发3D线材挤出生产线制备“皮-芯”结构3D线材,皮层为PLA材料,芯层为适量的羟基磷灰石与聚酯型TPU的共混物,PLA/TPU双组份按一定配比分别置于A挤出螺杆和B挤出螺杆中,A挤出螺杆加工温度Ⅰ~Ⅵ区(℃):195~200,185~190,190~195,190~195,190~195,185~190,B挤出螺杆加工温度Ⅰ~Ⅵ区(℃):190~195,200~205,200~205,205~210,205~210,200~205,通过适量的羟基磷灰石和聚酯型TPU,改善PLA与TPU两相间的粘结力,经特制模头共挤制备PLA/TPU双组份线材。本发明有益效果是:本发明不仅克服了PLA线材脆性高和抗冲击性能差的缺陷,而且克服了TPU材料收卷易粘连和难打印的缺陷,适用于3D打印,富有弹性,易打印,可用于关节连接处打印。
Description
技术领域
本发明涉及3D打印制造技术领域,具体涉及一种3D打印用PLA/TPU双组份线材及其制备方法。
背景技术
3D打印技术,即增材制造技术,是一种新兴的快速成型技术。它是一种以数字模型文件为基础,运用粉末金属或塑料等可粘合材料,通过逐层打印的方式来构造物体的技术,不需经过模具制造,节省了模具制造的时间及成本。基本原理是叠层制造,逐层增加材料来生成三维实体的技术。作为推动第三产业革命的核心技术,3D打印具有网络化、数字化、个性化等特点,逐渐应用于医学、生物工程、建筑、服装、航空等领域。
熔融挤压堆积成型技术(FDM)一般是在桌面上打印,又因其操作简单,所以材料普遍易得,成为3D打印技术中常用的一种技术工艺。其原理是利用热塑性聚合物材料在熔融状态下,从喷头处挤压出来,凝固形成轮廓形状的薄层,再逐层叠加堆积最终形成产品。所用的材料主要是环保高分子材料,如:PLA、ABS、PCL、PHA、PBS等。以避免熔融的高分子材料所产生的气味或是分解产生有害物质与人接触造成安全问题,在这些材料中聚乳酸(PLA)因其原料来源充分而且可以再生、具有生物降解性和生物相容性成为FDM技术中目前应用最广泛的高分子材料。但由于PLA的玻璃化转变温度较高,在常温下呈现硬而脆的性质,难于应用于关节连接处打印,从而严重限制了它在3D打印领域的应用。
热塑性聚氨酯弹性体(TPU)具有柔韧性佳,3D耗材开发者不断尝试以TPU材料挤出耗材,但TPU线材收卷易粘连、3D打印时吃料难、打印效率低等问题,成为限制其应用于3D打印领域的主要原因。
TPU的软段主要是聚酯或聚醚,并且已发现PLA与一些聚酯或聚醚相容,因而TPU与PLA具有良好的相容性;TPU硬段部分较多的氨基甲酸酯链节可能与PLA形成氢键相互作用,从而增强两相间的结合。在体系中添加适量的羟基磷灰石作为PLA/TPU界面改性剂,羟基磷灰石与PLA通过相互作用而具有良好的结合强度以及羟基磷灰石与TPU之间形成了氢键,从而通过羟基磷灰石提高PLA与TPU两相之间的界面粘附力,将PLA包覆于TPU表层,克服了TPU线材收卷易粘连、难打印等缺陷的同时,赋予PLA/TPU线材高柔韧性,可用于关节连接处打印,拓展其应用范围。
发明内容
基于上述背景和问题,本发明的目的在于提供一种柔韧性佳、易打印的PLA/TPU线材及其制备方法。
为了达成上述目的,本发明的解决方案是:
一种3D打印用PLA/TPU双组份线材及其制备方法,具体步骤是:3D线材挤出生产线制备“皮-芯”结构3D线材,皮层为PLA材料,芯层为适量的羟基磷灰石与聚酯型TPU的共混物,PLA/TPU双组份按一定配比分别置于A挤出螺杆和B挤出螺杆中,A挤出螺杆加工温度Ⅰ~Ⅵ区(℃):195~200,185~190,190~195,190~195,190~195,185~190,B挤出螺杆加工温度Ⅰ~Ⅵ区(℃):190~195,200~205,200~205,205~210,205~210,200~205,经特制模头共挤PLA/TPU双组份线材。
所述PLA/TPU线材结构:“皮-芯”同心圆;
所述皮层/芯层组份配比:0~50%:50~100%;
所述羟基磷灰石含量:0.5%~2%。
所述PLA材料熔体流动速率(210℃、2.16kg):6.0g/10min~25g/10min,加工温度为180~200℃。
所述TPU材料为聚酯型TPU,加工温度为190~210℃。
所述制备方法包括:将挤出机模口挤出的PLA/TPU线材先经过7~15℃冷却水冷却,再通过风冷传送带烘干,得到适合于3D打印尺寸要求的挤出线材。
所述制备方法包括:使用卷线机将经过水冷和烘干的挤出线材用线盘收取,收卷的频率控制在5~20HZ。
本发明的有益效果是:
1、本发明的PLA/TPU双组份线材通过TPU表层覆盖PLA,现实收卷不粘连、易打印等特点;
2、通过对适量的羟基磷灰石和聚酯型TPU,实现TPU与PLA两相间较好的粘结,打印出来的产品质量高,性能优异;
3、筛选的PLA和TPU的品种加工温度相似,熔点接近,利用其线材成型和线材打印。
具体实施方式
以下是本发明的几个具体实施例,进一步说明本发明,但是本发明不仅限于此。
实施例1
3D线材挤出生产线制备“皮-芯”结构3D线材,皮层为PLA材料,芯层为适量的羟基磷灰石与聚酯型TPU的共混物,PLA/TPU/羟基磷灰石按5%:94%:1%配比分别置于A挤出螺杆和B挤出螺杆中,A挤出螺杆加工温度Ⅰ~Ⅵ区(℃):195,193,196,194,190,200,B挤出螺杆加工温度Ⅰ~Ⅵ区(℃):193,201,205,207,208,204,经特制模头共挤PLA/TPU双组份线材。将挤出的PLA/TPU线材先经过7℃冷却水冷却,再通过风冷传送带烘干,收卷频率控制在10HZ,得到适合于3D打印尺寸要求的挤出线材。
实施例2
3D线材挤出生产线制备“皮-芯”结构3D线材,皮层为PLA材料,芯层为适量的羟基磷灰石与聚酯型TPU的共混物,PLA/TPU/羟基磷灰石按10%:88%:2%配比分别置于A挤出螺杆和B挤出螺杆中,A挤出螺杆加工温度Ⅰ~Ⅵ区(℃):195,193,196,194,190,200,B挤出螺杆加工温度Ⅰ~Ⅵ区(℃):193,201,205,207,208,204,经特制模头共挤PLA/TPU双组份线材。将挤出的PLA/TPU线材先经过10℃冷却水冷却,再通过风冷传送带烘干,收卷频率控制在15HZ,得到适合于3D打印尺寸要求的挤出线材。
Claims (8)
1.一种3D打印用PLA/TPU双组份线材及其制备方法,其特征在于本发明的具体步骤是:3D线材挤出生产线制备“皮-芯”结构3D线材,皮层为PLA材料,芯层为适量的羟基磷灰石与聚酯型TPU的共混物,PLA/TPU双组份按一定配比分别置于A挤出螺杆和B挤出螺杆中,A挤出螺杆加工温度Ⅰ~Ⅵ区(℃):195~200,185~190,190~195,190~195,190~195,185~190,B挤出螺杆加工温度Ⅰ~Ⅵ区(℃):190~195,200~205,200~205,205~210,205~210,200~205,经特制模头共挤PLA/TPU双组份线材。
2.根据权利要求1所述一种3D打印用PLA/TPU双组份线材及其制备方法,其特征在于:所述的线材结构为“皮-芯”同心圆。
3.根据权利要求1所述一种3D打印用PLA/TPU双组份线材及其制备方法,其特征在于;所述的皮层/芯层组份配比为0~50%:50~100%。
4.根据权利要求1所述一种3D打印用PLA/TPU双组份线材及其制备方法,其特征在于:所述的羟基磷灰石含量为0.5%~2%。
5.根据权利要求1所述一种3D打印用PLA/TPU双组份线材及其制备方法,其特征在于:所述的PLA材料为熔体流动速率(190℃、2.16kg)为6.0g/10min~25g/10min,加工温度为180~200℃。
6.根据权利要求1所述一种3D打印用PLA/TPU双组份线材及其制备方法,其特征在于:所述的TPU材料为聚酯型TPU,加工温度为190~210℃。
7.根据权利要求1所述一种3D打印用PLA/TPU双组份线材及其制备方法,其特征在于:所述步骤包括将挤出机模口挤出的PLA/TPU线材先经过7~15℃冷却水冷却,再通过风冷传送带烘干,得到适合于3D打印尺寸要求的挤出线材。
8.根据权利要求1所述一种3D打印用PLA/TPU双组份线材及其制备方法,其特征在于:所述步骤包括使用卷线机将经过水冷和烘干的挤出线材用线盘收取,收卷的频率控制在5~20HZ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910367793.3A CN111890650A (zh) | 2019-05-05 | 2019-05-05 | 一种3d打印用pla/tpu双组份线材及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910367793.3A CN111890650A (zh) | 2019-05-05 | 2019-05-05 | 一种3d打印用pla/tpu双组份线材及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111890650A true CN111890650A (zh) | 2020-11-06 |
Family
ID=73169139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910367793.3A Pending CN111890650A (zh) | 2019-05-05 | 2019-05-05 | 一种3d打印用pla/tpu双组份线材及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111890650A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115262090A (zh) * | 2022-07-25 | 2022-11-01 | 苏州贝彩纳米科技有限公司 | 一种可降解弹性聚乳酸熔喷非织造材料及其制备方法 |
CN115449215A (zh) * | 2022-06-10 | 2022-12-09 | 苏州复丝络科新材料有限公司 | 一种3d打印线材及其制备方法和应用 |
-
2019
- 2019-05-05 CN CN201910367793.3A patent/CN111890650A/zh active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115449215A (zh) * | 2022-06-10 | 2022-12-09 | 苏州复丝络科新材料有限公司 | 一种3d打印线材及其制备方法和应用 |
CN115449215B (zh) * | 2022-06-10 | 2024-01-02 | 苏州复丝络科新材料有限公司 | 一种3d打印线材及其制备方法和应用 |
CN115262090A (zh) * | 2022-07-25 | 2022-11-01 | 苏州贝彩纳米科技有限公司 | 一种可降解弹性聚乳酸熔喷非织造材料及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101318135B1 (ko) | 코팅 원사용 열가소성 폴리우레탄 컴파운드의 조성물 | |
KR101341054B1 (ko) | 코팅 원사의 제조방법 | |
CN111890650A (zh) | 一种3d打印用pla/tpu双组份线材及其制备方法 | |
DE202007018690U1 (de) | Mehrschichtfolie | |
KR101341055B1 (ko) | 열가소성 폴리우레탄 원사의 조성물 및 그 제조방법 | |
KR20180002733A (ko) | 3차원 조형물의 제조방법 및 3차원 조형물 제조용 필라멘트 | |
JP6820500B2 (ja) | 線条樹脂成形体 | |
KR101780475B1 (ko) | 필라멘트 형성에 이어 연속적으로 형상화가 가능한 3차원 프린팅 방법 | |
CN108285625B (zh) | 一种3d打印制备聚乳酸立构复合物的方法 | |
CN108059806A (zh) | 一种3d打印用pla/tpu复合材料 | |
CN104962051A (zh) | 一种竹塑复合3d打印用丝材及其制作方法 | |
CN109203449A (zh) | 一种低孔隙率3d打印制品的制备方法 | |
CN110193894B (zh) | 一种sls尼龙废料粉末的回收方法 | |
CN106700357A (zh) | 一种水溶性3d打印支撑材料及其制备方法 | |
JPH07506547A (ja) | 鉛筆の製造方法及び装置 | |
CN107964205A (zh) | 一种适用于快速成型的pp/sebs的制备方法 | |
CN107446339A (zh) | 一种适用于3d打印胸腹固定带的柔性材料及其制备方法 | |
JP3222767U (ja) | 造形材料 | |
CN108129830A (zh) | 一种用于3d打印的pla/tpu双组份线材及其制备方法 | |
CN106589575A (zh) | 一种适用于3d打印的pp/sebs复合材料 | |
CN111349265A (zh) | 一种3d打印用改性尼龙6及其制备方法 | |
CN106554594A (zh) | 一种适用于3d打印的sebs复合材料及其制备方法 | |
CN106700358A (zh) | 一种可用于3d打印的pva/pla复合材料 | |
CN114290632A (zh) | 一种熔融沉积成型3d打印耐热立构聚乳酸线材制备方法 | |
CN113372698A (zh) | 一种弹性体pla/tpu 3d打印线材及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201106 |