Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (01): 84-89.doi: 10.13475/j.fzxb.20200403306

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation of compound antistatic spinning oil for bio-based polyamide 56 and its effect on staple fiber spinnability

WANG Ying1, WANG Yiting1, WU Jiaqing1, GUO Yafei2, HAO Xinmin2()   

  1. 1. School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034, China
    2. Institute of Quartermaster Engineering & Technology, Institute of System Engineering, Academy of Military Sciences, Beijing 100082, China
  • Received:2020-04-14 Revised:2020-09-27 Online:2021-01-15 Published:2021-01-21
  • Contact: HAO Xinmin E-mail:xminhao@126.com

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Abstract:

Aiming at the problems of high mass specific resistance, serious static electricity and poor spinnability of bio-based polyamide 56 (PA56) staple fibers, a spinning oil was developed using the compound technology of commercial oil and antistatic agent. The influence of antistatic agent concentration on the conductivity and pH value of the compound oil was studied. The surface morphology, friction coefficient, mass specific resistance and carding performance of the bio-based PA56 staple fibers were investigated. The results showed that a smooth and uniform oil film was formed on the fiber surface after the compound oil treatment. The optimum concentration of antistatic agent and spinning oil were 2 g/L and 12 g/L respectively. Under this condition, a fiber-web from the PA56 staples was formed at the relative humidity of 35% and room temperature, which was uniform without holes and cloud spots. This compound spinning oil improves the bunching, antistatic and spinnability of PA56 staple fibers. It is a green and energy-saving method, requiring only for ambient temperature and humidity of spinning workshop.

Key words: bio-based polyamide fiber, antistatic performance, spinning oil, compound oil, spinnability

CLC Number: 

  • TS154

Tab.1

Compound method of antistatic agent and spinning oil"

试样编号 抗静电剂质量浓度/
(g·L-1)		 市售油剂质量浓度/
(g·L-1)
N0 0.00 0
Y0 0.00 12
E1 0.05 12
E2 0.10 12
E3 0.20 12
E4 0.60 12
E5 1.00 12
E6 2.00 12
E7 4.00 12
E8 6.00 12
E9 8.00 12
E10 10.00 12

Fig.1

Conductivity of compound spinning oil"

Fig.2

pH value of compound spinning oil"

Tab.2

Relationship between oil characteristics,fiber friction coefficient and spinnability"

类别 效果 油剂特性 摩擦因数要求
成网性 均匀 平滑性、抱合性 μs大,μd小
棉条蓬松 小 抱合性、抗静电性 μs大
堵喇叭口 不堵 平滑性、抗静电性 μs大,μd小
牵伸斑 少 平滑性 μs大,μd小
棉条断落 少 抱合性、平滑性 μs大,μd小
成纱强力 高 抱合性 μs大

Tab.3

Static friction coefficient of PA56 staple"

试样编号 静摩擦因数 试样编号 静摩擦因数
Y0 0.432 0 E6 0.466 9
E1 0.433 4 E7 0.491 9
E2 0.426 9 E8 0.558 0
E3 0.445 7 E9 0.564 2
E4 0.439 3 E10 0.504 6
E5 0.437 2

Fig.3

Mass specific resistance of PA56 staple"

Fig.4

SEM images of PA56 staple(×2 000)"

Fig.5

EDS spectra of PA56 staple"

Fig.6

Combing effect of PA56 staple"

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