High-strength lightweight stab-resistant material and preparation method thereof

A lightweight, high-strength technology, applied in fiber processing, textile and papermaking, fiber types, etc., it can solve the problems of complex preparation process, poor liquid-wet penetration, poor flexibility, etc., to achieve good softness, enhanced The effect of flexibility

Pending Publication Date: 2022-07-01
BEIJING TONGYIZHONG NEW MATERIAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN107385676 provides a flexible anti-stab material and its preparation method. It discloses a material and process in which two layers of anti-stab materials are stacked in a certain order and then formed by acupuncture first and then hydroentangled. The preparation process is complex and It mainly solves the problem of poor liquid penetration
Patent CN106084595 provides a stab-proof material with a sandwich structure of thermoplastic composite fibers, which solves the problem of poor flexibility

Method used

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  • High-strength lightweight stab-resistant material and preparation method thereof
  • High-strength lightweight stab-resistant material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0039] Mix 100g epoxy resin E51 and 30g butyl acrylate BA into a three-necked flask with nitrogen protection, heat to 50°C and mix evenly for 60min, add 5g of initiator AIBN to dissolve, then raise the temperature to 60°C, and keep the temperature for 6h. The butyl acrylate-modified epoxy resin mixture toughening agent has a viscosity of 10,000-30,000 cps at room temperature.

Synthetic example 2

[0041] Mix 100g epoxy resin E51 and 30g isooctyl acrylate EHA into a three-necked flask with nitrogen protection, heat to 50°C and mix for 60min, add 5g initiator AIBN to dissolve, then raise the temperature to 70°C, and keep the temperature for 6h. A toughening agent of epoxy resin mixture modified with butyl acrylate is obtained, and the viscosity of the obtained toughening agent is 10000-20000 cps at room temperature.

Synthetic example 3

[0043]100g of E51 resin, 15g of butyl acrylate BA and 15g of isooctyl acrylate EHA were mixed into a three-necked flask with nitrogen protection, heated to 50°C and uniformly mixed for 60min, and 5g of initiator AIBN was added to dissolve and then the temperature was raised to 60°C, After lasting for 6 hours, a toughening agent of epoxy resin mixture modified with butyl acrylate is obtained, and the viscosity of the obtained toughening agent is 20000-30000 cps at room temperature.

[0044] To evaluate the toughening effect of toughening agent, elongation at break and impact strength are used to characterize the toughening effect of toughening agent on epoxy resin. The test method of elongation at break refers to GB / T3923.1-1997, and the impact strength is tested under the condition of impact test machine and impact energy of 24J. The test formula reference is as follows:

[0045]

[0046] The test results are as follows:

[0047] Elongation at break Impact st...

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Abstract

The invention relates to a high-strength lightweight stab-resistant material and a preparation method thereof. The stab-resistant material is prepared by compounding a mixed solution composed of epoxy resin, an epoxy flexibilizer, an epoxy curing agent, a silane coupling agent and the like with aramid fibers through a prepreg hot-pressing process. The mixed solution comprises 30-50 parts of epoxy resin, 1-10 parts of an epoxy toughening agent, 1-10 parts of an epoxy curing agent and 0-5 parts of a silane coupling agent; the epoxy toughening agent is a self-made toughening agent and is obtained by grafting and modifying epoxy resin by adopting an acrylate monomer, so that the effect of toughening the epoxy resin can be achieved, and the compatibility between the toughening agent and the epoxy resin can also be improved. Uniformly mixing the mixed solution, adjusting the mixed solution to proper viscosity by using a solvent, carrying out dipping treatment on the mixed solution and aramid fiber woven fabric to obtain prepreg, and pressing the prepreg by using a hot press. The stab-resistant fiber material obtained by the material and the method has the characteristics of high strength, light weight and good softness.

Description

technical field [0001] The invention belongs to the technical field of special protective materials, and in particular relates to a high-strength lightweight stab-resistant material and a preparation method thereof. Background technique [0002] Stab-resistant clothing belongs to personal protective armor and belongs to special protective equipment. It mainly protects the human body from sharp weapons such as bayonets and daggers, and has important applications in civil, military, police and other protection fields. As the main body of stab-resistant clothing, stab-resistant material has a decisive impact on stab-resistant performance and wearing comfort. The current stab-proof clothing mainly includes hard stab-proof clothing, semi-hard and semi-soft stab-proof clothing and soft stab-proof clothing. Among them, the hard stab-proof clothing uses metal materials as the guard plate. Although this kind of stab-proof clothing has anti-stab effect Better, but bulky and unfavora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/55D06M15/263D06M13/513D06M101/36
CPCD06M15/55D06M15/263D06M13/513D06M2101/36
Inventor 陈振坤黄兴良刘金良孙其永周冰
Owner BEIJING TONGYIZHONG NEW MATERIAL TECH CORP
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