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管狀三維織物的織造及其復合材料的力學性能探索

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【摘要】:三維織物是一種結(jié)構復雜的立體織物,角連鎖織物是三維織物其中的一種交織成型的結(jié)構穩(wěn)定的立體織物。角連鎖織物結(jié)構復雜而有規(guī)律,通過設計相關的結(jié)構參數(shù),設計織造出相關三維織物。角連鎖三維織物一般結(jié)合高性能纖維制造成先進復合材料,運用于生活的各個領域。本文以緯角連鎖為織物的基本組織結(jié)構,通過設計經(jīng)緯紗的交織方式,使管狀織物一體成型的同時,其在沿管壁方向有緯紗的疊加而增加管壁的厚度。具體設計為穿棕采用順穿法,穿筘采用一筘一入,將1500D芳綸長絲織造一體成型的兩層、三層、四層管狀織物,同時設計織造出與各層管狀織織物具有相同經(jīng)紗根數(shù)以及相同斜紋傾斜度的斜紋織物,卷繞成相應層數(shù)的管狀。用環(huán)氧樹脂、稀釋劑、固化劑增強相,采用真空輔助成型工藝(VARTM)及自主設計的易脫模管狀模具對其進行復合,模具特征在于包括一個圓柱內(nèi)襯體、內(nèi)套管和外套管,圓柱內(nèi)襯體可分為n個分割體,拆卸時分別抽出,通過減小與管壁的接觸面積而有效地減小了圓柱內(nèi)襯體外壁與管狀復合材料內(nèi)壁的摩擦力,使圓柱內(nèi)襯模具的脫去簡單易操作。通過對所制備的的復合管狀材料與相應斜紋織物卷繞成相同層數(shù)管狀的管狀復合材料的力學測試對比,來分析經(jīng)緯紗在外力作用下的受力破壞方式。實驗結(jié)果表明:采用合適的織造工藝參數(shù),以及對織機的零部件進行調(diào)整,控制打緯時的緯紗張力,能完整的織造出一體成型的三維管狀織物。在壓縮性能與彎曲性能對比后得出,一體成型的管狀織物復合材料由于緯紗相互纏擾,對各層經(jīng)紗的束縛效果,能有效的減緩復合管材的破壞過程,且其壓縮斷裂強力以及彎曲最大受力都優(yōu)于卷繞成型的管狀復合材料。
[Abstract]:The three-dimensional fabric is a three-dimensional fabric with a complex structure, and the angle-linked fabric is a three-dimensional fabric with a stable and stable three-dimensional fabric. The structure of the angle chain fabric is complicated and regular, and the related three-dimensional fabric is designed by the design of the related structural parameters. The angle-linked three-dimensional fabric is generally made into an advanced composite material with high-performance fibers, and is applied to various fields of life. In this paper, the basic structure of the fabric is linked by the weft angle, and the thickness of the pipe wall is increased by the superposition of the weft yarns in the direction of the pipe wall by the design of the warp of the weft. in particular to a two-layer, three-layer and four-layer tubular fabric which are integrally formed by weaving a 1500-D aramid filament, and a twill fabric with the same warp number and the same twill inclination is designed and woven, And is wound into a tubular shape with a corresponding number of layers. The invention is characterized by comprising a cylindrical inner liner, an inner sleeve and an outer sleeve, wherein the cylindrical liner body can be divided into n segments, And the friction between the outer wall of the cylindrical lining and the inner wall of the tubular composite material is effectively reduced by reducing the contact area with the pipe wall, so that the removal of the cylindrical lining mould is simple and easy to operate. Through the mechanical test comparison of the prepared composite tubular material and the corresponding twill fabric into the tubular composite material with the same number of layers, the stress failure mode of the warp yarn under the action of external force is analyzed. The experimental results show that the proper weaving process parameters and the adjustment of the components of the loom can be used to control the tension of the weft at the time of beating, and the three-dimensional tubular fabric can be completely woven. after the compression performance and the bending performance are compared, the integrally formed tubular fabric composite material can effectively slow the damage process of the composite pipe due to the mutual entanglement of the weft yarns, the binding effect on the warp of each layer, And the compression fracture strength and the bending maximum stress are superior to the wound-formed tubular composite material.
【學位授予單位】:武漢紡織大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TS106;TB332

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