Method for preparing novel welfless cloth and composite UD profile

A new technology without weft fabric, applied in the field of polymer composite material preparation, can solve problems such as uneven glue layer, polluting workshop environment, affecting product performance, etc., to ensure overall uniformity, ensure workshop environment, and reduce production costs Effect

Inactive Publication Date: 2008-05-14
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] US.4.916.000 and US5.149.391, Chinese patents 03109121.0, 03158881.6 disclose several production methods, the main defects: ① lack of effective and uniform control of the static electricity and tension of the tow, resulting in uneven silk laying; ② gluing The process leads to uneven glue layer; ③There is no recycling and gathering device, which not only pollutes the workshop envi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Method for preparing novel welfless cloth and composite UD profile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The raw material is high-strength high-modulus polyethylene fiber, the specification is 1000D / 240f, and the number of cluster tubes is 60. Adhesive is sodium butadiene glue (commercially available); glue concentration is 20%, spray pressure is 0.18Kg / cm 2 ; Laying speed is 30m / min, parallel composite layer is 60 layers; fiber / adhesive weight ratio is 80 / 20. Measured UD profile V 50 =589m / s.

Embodiment 2

[0028] The raw material is aramid fiber, the specification is 800D / 200f, the number of cluster tubes is 40, the adhesive is styrene-butadiene rubber (commercially available); the dipping concentration is 30%, and the spray pressure is 0.18Kg / cm 2 ; Laying speed is 30m / min, parallel composite: 60 layers, fiber / adhesive weight ratio is 80 / 20. Measured UD profile V 50 = 550m / s.

Embodiment 3

[0030] The raw material is polyacrylonitrile-based carbon fiber, 600D / 100f, the number of cluster tubes is 30, the adhesive is thermoplastic PVA (commercially available); the sol concentration is 25%, and the spray pressure is 0.18Kg / cm 2 ; Laying speed is 30m / min, parallel composite layer is 60 layers, fiber / adhesive weight ratio is 80 / 20. Measured UD profile V 50 =538m / s.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a preparation method of a novel weftless cloth and composite UD material, including the steps: (1) a feeding tension box of a tow frame is provided with a constant static generator; (2) the tow is parallel laid and is put into a steeping vat, then the weftless cloth is topped with gum at the face and the back on a roller and by an atomizing and spraying device; (3) gum at both the face and the back of the weftless cloth is scraped in parallel; (4) the formed weftless cloth is hauled by a chain and parallel conveying way, parallel cut or conversely folded to form an UD composite board of multi-layer structure. The method of the invention is a continuous production method of stable quality and requires low cost, and the prepared UD material is characterized by even quality, fiber being evenly stressed, even sizing rate, etc.

Description

technical field [0001] The invention belongs to the field of preparation of polymer composite materials, and in particular relates to a preparation method of a novel weft-free cloth and its composite UD profiles. Background technique [0002] Use high-performance fibers, such as carbon fiber, aramid fiber, and high-strength high-modulus polyethylene fiber to make non-weft fabrics and composite profiles, which are mainly used for bulletproof, stab-proof and other safety protection materials, so its quality stability is very important. [0003] US.4.916.000 and US5.149.391, Chinese patents 03109121.0, 03158881.6 disclose several production methods, the main defects: ① lack of effective and uniform control of the static electricity and tension of the tow, resulting in uneven silk laying; ② gluing The process leads to uneven glue layer; ③There is no recycling and gathering device, which not only pollutes the workshop environment, is harmful to the health of front-line workers, b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D04H3/12D06N7/00F41H1/02F16S1/00
Inventor 王依民倪建华周成程
Owner DONGHUA UNIV
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