Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (07): 67-71.doi: 10.13475/j.fzxb.20190504005

• Textile Engineering • Previous Articles     Next Articles

Stab-resistant performance and wearability of composite materials made by discrete resin molding

MA Feifei()   

  1. Shanghai Sturdy Armor New Material Technology Co., Ltd., Shanghai 201620, China
  • Received:2019-05-13 Revised:2020-03-22 Online:2020-07-15 Published:2020-07-23

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Abstract:

In order to balance the stab-resistant performance and the wear comfort of stab-resistant body armor, a new discrete resin composite molding process was developed based on the design concept combining of soft and hard sessions. Discrete modified polycarbonate particles were solidified on the polyester and aramid base fabric according to the designed pattern. The stab-resistant performance as well as the breathability and bending performance of different types of discrete resin composites were studied. The results indicate that the stab strength of the aramid composites is twice as high as that of the polyester composites. The stab resistance of 4 layers of discrete resin composites is similar to that of 40 layers of aramid woven fabric, and composites thickness and weight are reduced significantly. It is also found that the composite has good softness and excellent breathability.

Key words: stab-resistant body armor, stab-resistant performance, discrete resin, stab-resistant composite, aramid fabric, wearability

CLC Number: 

  • TS941

Fig.1

Composite materials made by discrete resin molding"

Tab.1

Specification parameters of base fabric"

编号 织物
种类		 织物
组织		 密度/(根·(10 cm)-1) 面密度/
(g·m-2)		 厚度/
mm
经向 纬向
1# 涤纶 平纹 208 148 210.50 0.24
2# 芳纶 平纹 134 128 280.00 0.35

Fig.2

Discrete resin process mold"

Tab.2

Parameters of single layer stab-resistant material"

编号 材料种类 面密度/(g·m-2) 厚度/mm
3# 涤纶防刺复合材料 1 880.00 1.82
4# 芳纶防刺复合材料 2 130.00 1.95

Tab.3

Stab-resistant performance of material with single layer"

编号 材料
种类		 穿刺
强力/N		 穿刺深度/
mm
2# 芳纶平纹织物 12.93±3.18 7.14±1.05
3# 涤纶防刺复合材料 128.00±4.65 8.25±0.86
4# 芳纶防刺复合材料 230.52±5.22 8.72±0.93

Fig.3

View of composite before and after static puncturing"

Tab.4

Stab-resistant performance of three different specifications laminated samples"

试样
编号		 组织
结构		 防刺层厚度/
mm		 穿透深度/
mm		 穿透层面密度/
(g·m-2)		 穿透状态
5# 4层涤纶防刺复合材料 7.40±1.12 7.40±1.12 7 520.00±12 第4层基布刚刚穿透
6# 4层芳纶防刺复合材料 8.10±0.79 6.20±0.86 6 390.00±10 第4层薄片有刺痕未穿透
7# 40层芳纶平纹织物 14.50±1.24 13.40±1.09 10 640.00±13 穿透38层余2层

Fig.4

Dynamic puncturing front and back view of composite materials with each layer. (a) Front of 5#; (b) Back of 5#; (c) Front of 6#; (d) Back of 6#"

Tab.5

Bending performance of three samples"

编号 防刺材料种类 弯曲长度/
cm		 抗弯刚度/
(mN·cm)
2# 芳纶平纹织物 2.52±0.85 4.48±0.82
3# 涤纶防刺复合材料 7.84±1.15 905.95±1.48
4# 芳纶防刺复合材料 8.74±1.06 1 422.05±0.64
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