Nylon fiber with low surface frictional coefficient and improved hydrophobicity and preparation method thereof

A surface friction and nylon fiber technology, which is applied in the field of fiber manufacturing, can solve the problems of poor compatibility, poor durability, and shedding of nylon, and achieve the effects of improving dispersion uniformity, hydrophobicity, and compactness

Active Publication Date: 2019-07-09
DONGHUA UNIV +1
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the research on the friction and hydrophobicity of nylon is mainly concentrated in nylon plastics, and lubricants (such as molybdenum disulfide, graphite, talc, mica flakes, ultra-high molecular weight polyethylene (UHMWPE), etc.) are often added by physical blending method. Improve the friction of nylon or add hydrophobic materials (such as polytetrafluoroethylene, polydimethylsiloxane, etc.) to improve the hydrophobicity of nylon, but after adding additives, due to the poor compatibility of additives and nylon, it cannot Uniformly dispersed in the substrate, resulting in unknown spinnability of the material and poor friction and hydrophobicity modification of the fiber, making it difficult to prepare a coefficient of friction from nylon plastics with a low coefficient of friction and good hydrophobicity in ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nylon fiber with low surface frictional coefficient and improved hydrophobicity and preparation method thereof
  • Nylon fiber with low surface frictional coefficient and improved hydrophobicity and preparation method thereof
  • Nylon fiber with low surface frictional coefficient and improved hydrophobicity and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of nylon fibers with low surface friction coefficient and improved hydrophobicity, the steps are as follows:

[0031] (1) prepare modified nylon masterbatch;

[0032]First, add the mixture composed of nylon 66, PDMS with a number average molecular weight of 40w and aminoethylaminopropyl isobutyl cage semisiloxane into a high-speed mixer and stir evenly. In the mixture, nylon 66, PDMS and aminoethylammonia The mass content of propyl isobutyl cage semisiloxane is 49.5wt%, 50wt% and 0.5wt%, respectively, the rotation speed during stirring is 1500r / min, the temperature is 232°C, the time is 3min, and then transported to the twin-screw Melt extrusion and pelletizing in the extruder, the temperature of melt extrusion is 260°C;

[0033] (2) blending melt spinning;

[0034] The modified nylon masterbatch and nylon 66 slices were respectively placed in a vacuum oven and dried for 48 hours at a temperature of 120°C. The mass ratio of the modified nylon ma...

Embodiment 2

[0039] A preparation method of nylon fibers with low surface friction coefficient and improved hydrophobicity, the steps are as follows:

[0040] (1) prepare modified nylon masterbatch;

[0041] First, add the mixture composed of nylon 66, PDMS with a number average molecular weight of 40w and aminoethylaminopropyl isobutyl cage semisiloxane into a high-speed mixer and stir evenly. In the mixture, nylon 66, PDMS and aminoethylammonia The mass content of propyl isobutyl cage semisiloxane is 49.5wt%, 50wt% and 0.5wt%, respectively, the rotation speed during stirring is 1500r / min, the temperature is 232°C, the time is 3min, and then transported to the twin-screw Melt extrusion and pelletizing in the extruder, the temperature of melt extrusion is 260°C;

[0042] (2) blending melt spinning;

[0043] The modified nylon masterbatch and nylon 66 slices were respectively placed in a vacuum oven and dried for 48 hours at a temperature of 120 ° C. The mass ratio of the modified nylon...

Embodiment 3

[0046] A preparation method of nylon fibers with low surface friction coefficient and improved hydrophobicity, the steps are as follows:

[0047] (1) prepare modified nylon masterbatch;

[0048] First, add the mixture composed of nylon 66, PDMS with a number average molecular weight of 40w and aminoethylaminopropyl isobutyl cage semisiloxane into a high-speed mixer and stir evenly. In the mixture, nylon 66, PDMS and aminoethylammonia The mass content of propyl isobutyl cage semisiloxane is 49.5wt%, 50wt% and 0.5wt%, respectively, the rotation speed during stirring is 1500r / min, the temperature is 232°C, the time is 3min, and then transported to the twin-screw Melt extrusion and pelletizing in the extruder, the temperature of melt extrusion is 260°C;

[0049] (2) blending melt spinning;

[0050] The modified nylon masterbatch and nylon 66 slices were respectively placed in a vacuum oven and dried for 48 hours at a temperature of 120°C. The mass ratio of the modified nylon m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Number average molecular weightaaaaaaaaaa
Static friction coefficientaaaaaaaaaa
Login to view more

Abstract

The invention relates to a nylon fiber with low surface frictional coefficient and improved hydrophobicity and a preparation method thereof. The preparation method comprises mixing modified nylon masterbatch and nylon chips in a mass ratio of (0.5-5):(95-99.5), and performing melt spinning to obtain the nylon fiber with low surface frictional coefficient, wherein the modified nylon masterbatch ismainly composed of, by weight, 37-88.8% of nylon, 10-60% of PDMS (polydimethylsiloxane) and 0.2-3% of POSS with amino side chains and is made by adding the materials proportionally into a mixer, mixing well, transferring to a twin-screw extruder and dicing. The prepared nylon fiber with low surface frictional coefficient and improved hydrophobicity has both dynamic frictional coefficient and stationary frictional coefficient of less than 0.3, has an angle of contact with water being greater than 71 DEG, has good durability, spinnability and good mechanical properties, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of fiber manufacturing, and relates to a nylon fiber with low surface friction coefficient and improved hydrophobicity and a preparation method thereof. Background technique [0002] Nylon fiber is a kind of synthetic fiber connected by amide bonds. It has a series of excellent properties, such as high strength, good resilience, excellent wear resistance and chemical corrosion resistance, and strong impact resistance. It is used in clothing, decoration and Industry and other fields have been widely used. With the continuous differentiation of application fields, people often put forward different requirements for specific applications. In order to meet the requirements of water repellency and antifouling of clothing fibers, especially outdoor sports series clothing, and to improve the unique appearance and feel of microfiber fabrics, it is necessary to Nylon fiber is modified to reduce the friction coeffici...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D01F6/90D01F1/10
CPCD01F1/10D01F6/90
Inventor 李光付康杨胜林金俊弘徐锦龙王松林
Owner DONGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap