Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (09): 114-121.doi: 10.13475/j.fzxb.20180900108

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Performance and regulation of hydrophilic oil agent for polyethylene-polypropylene nonwoven fabrics

LIU Jian1, MAO Jinlu1, PENG Li1, CAI Lingyun1, ZHENG Xuming1(), ZHANG Fushan2   

  1. 1. College of Science, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. Fujian Hengan Group Co., Ltd., Quanzhou, Fujian 362261, China
  • Received:2018-09-03 Revised:2019-03-21 Online:2019-09-15 Published:2019-09-23
  • Contact: ZHENG Xuming E-mail:zxm@zstu.edu.cn

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Abstract:

In view of the relationship between the compatibility of surfactants and the hydrophilicity of polyethylene-polypropylene (ES) nonwoven fabrics in the development of hydrophilic oil agents, the experimental methods such as steady-state fluorescence quenching method, video contact angle measuring instrument and liquid penetration time measuring instrument were adopted to detect surface tension of the oil or surfactant solution, the number of micelles, the particle size distribution of the aggregates, the dynamic contact angle of the polyethylene (PE) interface. The surfactant structure and synergistic compatibility with the multiple permeable time of the ES nonwoven fabric were discussed, and the comprehensive properties of hydrophilic oil agents were measured. The results show that the high surface activity of the hydrophilic oil agent, the appropriate HLB value, and the large number of micelle aggregation are beneficial to improve the hydrophilicity of the ES nonwoven fabric. The permeable time of 3 times is shorter than 3 s, the moisture resistance is less than 0.13 g, and the surface specific resistance is less than 3.0×108 Ω·cm after ES nonwoven fabric is modified by oil agent, which satisfy the requirements of the covering materials used for sanitary products.

Key words: polyethylene-polypropylene nonwoven fabric, hydrophilic oil agent, surface tension, dynamic contact angle, surfactant

CLC Number: 

  • TS195.6

Tab.1

CMC and γCMC of single surfactants at 25 ℃"

表面活性剂 CMC/(mmol·L-1) γCMC/(mN·m-1)
快T 11.50 26.8
AES 13.00 35.7
23E2S 12.50 33.7
SLES 13.30 32.8
MES-30 8.50 32.1
SDS 19.70 34.7
MDS 18.90 31.2
13C-5EO-PK 0.25 27.6
12C-9EO-PK 0.42 30.1
E1305 0.10 27.0
E1005 0.18 26.6
AEO-9 0.05 31.3
Tween-60 0.03 42.5
三硅氧烷 0.12 19.6
DTAB 3.25 33.7
TTAB 1.55 31.4
CTAB 0.53 30.5

Fig.1

Change of contact angles of different types of surfactants on PE film with time at 5 g/L. (a) Anionic surfactants; (b) Cationic surfactants;(c) Nonionic surfactants"

Tab.2

Multiple hydrophilic permeable time of ES nonwoven fabric after single surfactant finishing"

表面活性剂 上油
率/%		 透水时间/s
t1 t2 t3 t4 t5
快T 0.40 0.79 1.46 4.72 4.66 5.71
23E2S 0.40 0.77 1.63 6.99 6.95 5.46
AES 0.38 0.96 1.91 6.42 6.93 6.47
MES-30 0.38 1.00 6.97 6.61 7.02 7.40
SLES 0.38 1.81 3.85 6.74 6.35 6.87
MDS 0.38 2.77 2.02 7.72 6.68 7.13
SDS 0.37 7.70 4.76 7.99 10.35 10.45
12C-9EO-PK 0.36 2.78 4.24 4.90 4.56 6.28
13C-5EO-PK 0.34 1.12 3.42 4.50 3.63 3.92
DTAB 0.38 1.21 6.3 5.78 6.19 5.17
TTAB 0.32 1.10 3.35 3.7 3.61 3.35
CTAB 0.36 1.04 3.44 2.78 3.33 3.66
三硅氧烷 0.40 1.77 3.63 6.99 6.95 5.46

Tab.3

Multiple hydrophilic permeation time of ES nonwoven fabric modified by two-component surfactants"

表面活性剂 上油
率/%		 透水时间/s
t1 t2 t3 t4 t5
CTAB与快T 0.40 0.79 1.86 2.42 2.66 2.71
CTAB与23E2S 0.40 0.77 1.93 2.39 2.46 2.56
CTAB与SLES 0.38 0.81 1.85 2.74 2.35 2.87
CTAB与MDS 0.38 2.26 2.51 2.34 3.31 3.20
CTAB与SDS 0.37 0.9 1.82 2.02 1.89 1.99
CTAB与AES 0.38 0.96 1.91 6.42 6.93 6.47
CTAB 0.36 1.04 3.44 2.78 3.33 3.66

Tab.4

Multiple hydrophilic permeation time, anti-wetting amount and specific resistance of ES nonwoven fabric after oil agent modification"

油剂 上油率/% 透水时间/s 反湿量/g 比电阻ρ/
(Ω·cm)		 γCMC /
(mN·m-1)
t1 t2 t3 t4 t5
ZLG-1 0.37 0.75 1.65 2.46 3.23 3.66 0.11 2.91×108 26.5
ZLG-2 0.35 0.74 1.34 2.70 2.06 3.49 0.12 1.17×108 25.3
ZLG-3 0.34 0.69 1.45 1.59 2.43 2.89 0.12 1.58×108 22.7
ZLG-4 0.35 0.93 1.78 1.90 3.82 2.28 0.11 1.98×108 22.3
ZLG-5 0.35 0.81 1.66 1.76 2.00 2.65 0.11 1.99×108 22.1

Fig.2

Spreading behaviors of different oil agents on PE film at concentration of 8 g/L"

Fig.3

Fluorescence intensity ln(I0/I) of pyrene varying with quencher concentration CQ at different concentrations of oil agent ZLG-2"

Tab.5

Number of micelles aggregated at different concentrations of oil agent ZLG-2"

浓度/(mmol·L-1) 线性方程 a b R2 Nm
0.11(4 CMC) Nm=6.0C-0.1 6.0 -0.1 0.98 0.5
0.27(8 CMC) Nm=12.0C-0.2 12.0 -0.2 0.99 2.9
0.41(10 CMC) Nm=14.7C-0.1 14.7 -0.1 0.97 5.6
0.55(15 CMC) Nm=16.6C-0.1 16.6 -0.1 0.99 8.7
0.68(20 CMC) Nm=20.0C-0.2 20.0 -0.2 0.99 13.1

Tab.6

Linear equation between number of micelle clusters Nm and total oil concentration C (C=4 to 15 times of CMC)"

油剂 Nm与C线性方程 R2
ZLG-1 Nm=10.8C-1.4 0.966
ZLG-2 Nm=21.6C-2.5 0.969
ZLG-3 Nm=14.6C-1.3 0.890
ZLG-4 Nm=24.2C-18.4 0.989
ZLG-5 Nm=23.6C-10.5 0.990
2 Nm=13.3C-18.0 0.958

Fig.4

Particle size distribution of different oil agents at concentration of 8 g/L"

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