Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (8): 89-94.doi: 10.13475/j.fzxb.20181106606

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation and properties of linear polyether-blocked amino silicone

XU Chengshu1(), WU Mengting1, REN Yan1, XING Jianwei1, CAI Zaisheng2, OUYANG Lei1   

  1. 1. School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
    2. College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
  • Received:2018-11-26 Revised:2019-05-09 Online:2019-08-15 Published:2019-08-16

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Abstract:

In order to simplify the synthesis process of linear polyether-blocked amino silicone oil, the linear polyether-blocked amino silicone oil (LEPS) was prepared by ring opening polymerization using diterminal aminoether and diterminal epoxy polyether silicone as monomers and isopropyl alcohol as a solvent, and the LEPS was applied to the soft finishing of knitted cashmere fabric. The physicochemical properties of LEPS and fabrics finished with LEPS were characterized by means of Fourier transform infrared spectrometer, thermogravimetric analysis, multi-functional surface analysis electron spectrometer and scanning electron microscopy. The results show that when the mole ratio of two monomers is 1:1, the ammonia value of LEPS is 0.14 mmol/g, and the molar mass is 7.39×10 4 g/mol, and the emulsion has excellent stability. The fabric finished with LEPS has outstanding soft and fluffy properties, hand feeling to grade 5 and good hydrophilicity, moisture permeability and static resistance as well as low degree of yellowing. LEPS has the advantages of excellent comprehensive properties and simple preparation process.

Key words: diterminal amino polyther, diterminal epoxy polyether silicone, linear polyether-blocked amino silicone, knitted cashmere fabric, soft finishing of fabric

CLC Number: 

  • TS06

Fig.1

Synthesis scheme of LEPS"

Tab.1

Composition for preparation of LEPS"

样品
编号		 双端氨基
聚醚质量/g		 双端环氧基聚
醚硅油质量/g		 物质的
量比
LEPS-1 4.0 60.0 1.0:1.4
LEPS-2 8.0 84.0 1.0:1.0
LEPS-3 8.0 64.0 1.3:1.0
LEPS-4 8.0 52.0 1.6:1.0

Fig.2

FT-IR spectra of raw materials and LEPS-2"

Fig.3

TG and DTG curves of LEPS-2"

Fig.4

XPS spectra of LEPS-2"

Tab.2

Amino value and molecular weight of LEPS"

样品编号 氨值/(mmol·g-1) 摩尔质量/(g·mol-1)
LEPS-1 0.10 3.19×104
LEPS-2 0.14 7.39×104
LEPS-3 0.18 4.45×104
LEPS-4 0.22 3.16×104

Tab.3

Stability of LEPS emulsion"

样品编号 离心稳定性 耐酸稳定性 耐碱稳定性 耐盐稳定性
LEPS-1 稳定 稳定 浑浊 稳定
LEPS-2 稳定 稳定 稳定 稳定
LEPS-3 稳定 稳定 稳定 稳定
LEPS-4 稳定 稳定 稳定 稳定

Tab.4

Comprehensive properties of finished fabrics"

样品
类别		 手感/
级		 色差 润湿时
间/s		 透湿量/
(g·(m2·d)-1)		 感应静
电压/V		 静电衰
减时间/s
原样 1 >300 6 559 10 467 8.5
LEPS-1 4~5 0.28 26.1 6 338 9 847 2.2
LEPS-2 5 0.31 15.7 6 116 9 753 1.5
LEPS-3 4~5 0.26 10.6 6 498 9 822 1.2
LEPS-4 3~4 0.34 9.8 6 081 9 651 1.1
AEAPS 5 0.61 129.4 5 027 10 576 6.4
SRS 5 0.30 13.6 6 042 9 958 3.3

Fig.5

SEM images of cashmere fiber(×5 000). (a) Untreated fiber; (b) LEPS-2 treated fiber"

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