纺织学报 ›› 2019, Vol. 40 ›› Issue (12): 32-38.doi: 10.13475/j.fzxb.20190201707

• 纺织工程 • 上一篇    下一篇

基于3D打印的竹节结构中空单丝制备及其压缩性能

张晓会, 杨曈, 马丕波()   

  1. 江南大学 针织技术教育部工程研究中心, 江苏 无锡 214122
  • 收稿日期:2019-02-15 修回日期:2019-08-07 出版日期:2019-12-15 发布日期:2019-12-18
  • 通讯作者: 马丕波
  • 作者简介:张晓会(1994—),女,博士生。主要研究方向为产业用针织结构设计与性能。
  • 基金资助:
    国家自然科学基金项目(11972172);国家自然科学基金项目(61772238);国家自然科学基金项目(61902150)

Preparation and compression properties of bamboo-structure hollow monofilaments by 3D printing

ZHANG Xiaohui, YANG Tong, MA Pibo()   

  1. Engineering Research Center for Knitting Technology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
  • Received:2019-02-15 Revised:2019-08-07 Online:2019-12-15 Published:2019-12-18
  • Contact: MA Pibo

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摘要：

为研究竹节结构中空单丝内部结构对其压缩性能的影响,以聚酯为耗材,利用3D打印技术制备了长度为100 mm、外径为2 mm的竹节结构中空单丝和实心单丝,测试了单丝的抗压性能,利用有限元分析探讨了竹节结构中空单丝作为间隔丝对经编间隔织物抗压性能的影响。结果表明:单丝的压缩性能受其内部结构影响,竹节结构中空单丝单位质量承受载荷的能力优于实心单丝;竹节结构中空单丝中空部分所占比例越大,单丝单位质量承受的载荷越大;织物的压缩性能与间隔丝内部结构有关,作为间隔丝的竹节结构中空单丝中空部分所占比例越大,织物单位质量承受的载荷越大。

关键词: 聚酯, 竹节结构中空单丝, 3D打印, 压缩性能, 经编间隔织物

Abstract:

In order to study the influence of the internal structure of bamboo-structure hollow monofilaments on the compression properties, bamboo-structure hollow monofilaments and solid monofilaments with the length of 100 mm and the external diameter of 2 mm were prepared by 3D printing technology using polyester as the feeding fiber. The finite element(FEM) analysis was adopted to find the influence on the compression properties of warp-knitted spacer fabrics prepared from the bamboo-structure hollow monofilaments. The experimental and FEM results show that the structure of monofilaments influence the compression properties. The bamboo-structure hollow monofilaments undertake more load per unit mass compared with the solid monofilament, and the greater the proportion of the hollow part of the hollow monofilaments, the greater the load born by per unit mass of bamboo-structure hollow monofilament. The compression properties of warp-knitted spacer fabrics are influenced by the internal structure of spacer monofilaments. The greater the proportion of the hollow part of the bamboo-structure hollow monofilaments as the spacer monofilaments, the greater the load born by per unit mass of the warp-knitted spacer fabrics.

Key words: polyester, bamboo-structure hollow monofilament, 3D printing, compression property, warp-knitted spacer fabric

中图分类号: 

  • TS184.3

表1

竹节结构中空单丝规格参数"

单丝编号 内径/mm 实心/空心 质量占比
1# 0 10/0 100.0
2# 1 1/9 77.5
3# 1 2/8 80.0
4# 1 3/7 82.5
5# 1 4/6 85.0
6# 1 5/5 87.5

图1

3D打印单丝制备示意图"

图2

3D打印单丝样品"

图3

竹节结构中空单丝的三维图像"

图4

万能材料试验机试验示意图"

表2

材料属性设置"

外径/
mm		 分布密度/
(根·cm-2)		 弹性模
量/GPa		 摩擦
因数		 密度/
(kg·m-3)		 泊松
比		 弯曲挠
度/mm
0.2 25 68 0.24 1.38×103 0.35 0.2

图5

不同压缩应变下单丝的变形情况"

图6

3D打印单丝载荷-位移曲线"

图7

单丝载荷-位移曲线"

图8

单丝压缩过程中的应力分布情况"

图9

单丝单次压缩后的高度减少量"

图10

织物的能量变化曲线"

图11

织物压缩过程中载荷-位移曲线"

图12

应力在织物表面传递形式"

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