Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (04): 96-102.doi: 10.13475/j.fzxb.20180506107

• Dyeing and Finishig & Chemicals • Previous Articles     Next Articles

Preparation of antistatic hot melt adhesive and its application in coated nonwoven fabric

WANG Zongqian(), WANG Dengfeng, WANG Mingrong, SHEN Jieliang   

  1. School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
  • Received:2018-05-24 Revised:2018-12-13 Online:2019-04-15 Published:2019-04-16

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Abstract:

In order to improve the antistatic property of polyethylene/polypropylene(PE/PP) coated nonwoven fabric, the antistatic composite hot melt adhesive (composite adhesive) was prepared by blending the macromolecule antistatic agent with the modified rosin resin hot melt adhesive, and used for the spray-coating process of PE/PP nonwoven fabrics. The effect of the amount of antistatic agent on the melt viscosity of the composite adhesive was discussed, and its thermal stability was analyzed as well. Then, the influence of the composite adhesive on the antistatic property of the coated nonwoven fabrics was tested and compared. The results show that with the increase of the antistatic agent concentration, the melt viscosity of the composite adhesive will gradually decrease and then stabilize. The thermal stability of the composite adhesive decreases in the high temperature zone, but it is not affected in the melt state. The charge transfer and leakage network is constructed by the penetration of the composite adhesive into PP nonwoven, PE film and their outer surfaces, which improves the antistatic property of the coated nonwoven fabric. The improvement of the antistatic property is positively correlated to the concentration of antistatic agent in the composite adhesive. A certain antistatic property of coated nonwoven fabric is maintained after washing for 5 times.

Key words: antistatic, hot melt adhesive, polyethylene, polypropylene, coated nonwoven fabric

CLC Number: 

  • TQ437

Fig.1

Effect of antistatic agent amount on melt viscosity of composite adhesive"

Fig.2

DTA/TG curves of different adhesives. (a)Original adhesive; (b)Composite adhesive with 15% mass fraction"

Tab.1

Surface specific resistance of coated nonwoven fabrics"

抗静电剂质量分数/% 表面比电阻/GΩ
正面 反面
0 3.08 5.80
5 0.98 2.26
10 0.38 0.98
15 0.11 0.24

Fig.3

Induced voltage and half-life of coated PE/PP nonwoven fabric. (a)Obverse side; (b) Reverse side"

Fig.4

Schematic diagram of coated PE/PP nonwoven antistatic property"

Fig.5

Peeling state of coated PE/PP nonwoven fabric with different mass fraction of antistation agent"

Tab.2

Effect of washing on antistatic property of coated PE/PP nonwoven fabrics"

抗静电剂
质量分数/%		 水洗
次数		 感应电压/kV
正面 反面
5 0 1.44 2.07
1 1.51 2.12
3 1.55 2.21
5 1.60 2.25
10 0 0.99 0.95
1 1.16 1.16
3 1.24 1.28
5 1.31 1.26
15 0 0.30 0.43
1 0.40 0.66
3 0.61 0.81
5 0.69 0.90
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