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Production method of PE weftless bullet-proof helmet

A bulletproof helmet, production method technology, applied in chemical instruments and methods, non-woven fabrics, protective equipment and other directions, can solve the problems of large equipment investment, cumbersome operation, low performance, etc., and achieve long flexural life and good braking ability. , good bending effect

Inactive Publication Date: 2004-07-28
NINGBO DACHENG ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ordinary non-weft fabrics are mostly used in industries, such as chemical and environmental protection industries. Due to their low performance, they are rarely used in bulletproof protective products.
[0003] At present, there is a full-diameter wire laying and dipping line represented by companies in the United States and the Netherlands. The product is made of "UD" cloth with four layers of fibers orthogonally compounded in pairs. This method has the advantages of uniform laying, production The advantages of high efficiency also have the disadvantages of large equipment investment, complicated process and cumbersome operation

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The high-density polyethylene film is used as the matrix, and the high-performance PE fibers are evenly arranged on the film. By spraying thermoplastic high-toughness glue, the fibers and the fibers and the film are tightly bonded to form a unidirectional non-woven fabric, and then passed through Orthogonal stacking, hot pressing into a composite non-woven fabric "UD".

[0011] The production process is:

[0012] Laying HDPE film → high-performance PE fiber → laying silk → spraying adhesive → drying and forming → slicing → unidirectional non-woven fabric;

[0013] Horizontal direction of unidirectional non-weft fabric---orthogonal compounding→hot pressing→cooling forming→composite non-weft fabric.

[0014] Determine the circumference of the roller, determine the surface density of the weft-free fabric and determine the glue content according to the user's needs.

[0015] Choose adhesives according to the requirements of different products: thermoplastic resins (EVA, b...

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Abstract

The present invention relates to a method for producing high-performance PE fibre composite weftless fabric bullet-proof helmet. It includes the following steps: accoridng to the form and size of required helmet cutting aramid fibre fabric, previously brushing pre-prag material, spraying demoulding agent on the mould, tightly sticking a layer of aramid fibre pre-preg material on the male mould, then successively cross-laying 20-25 layers of high-performance PE weftless fabric, closing mould and applying 5MPA pressure, escaping air, heating to 125-130 deg.C and increasing pressure to 18-20 MPA, retaining constant temp. and constant pressure for 10 min, then cooling to below 80 deg.C and opening mould so as to obtain the invented product. The pre-preg material is made up by using PVB industrial alcohol colloidal solution whose concentration is about 10%.

Description

Technical field: [0001] The invention relates to a production method of a high-performance, high-strength, high-modulus PE fiber composite non-weft cloth bulletproof helmet, and relates to the physical manufacturing method of the composite fiber non-weft cloth and the technical field of application of bulletproof protective products. Background technique: [0002] Ordinary non-woven fabrics are mostly used in industries, such as chemical and environmental protection industries. Due to their low performance, they are rarely used in bulletproof protective products. [0003] At present, there is a full-diameter wire laying and dipping line represented by companies in the United States and the Netherlands. The product is made of "UD" cloth with four layers of fibers orthogonally compounded in pairs. This method has the advantages of uniform laying, production The advantages of high efficiency also have the disadvantages of large equipment investment, complicated process and cumb...

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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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06D04H3/12F41H1/00F41H1/02F41H1/04
Inventor 陈成泗
Owner NINGBO DACHENG ADVANCED MATERIAL
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