Double-layer fabric containing polytetrafluoroethylene fiber and application of double-layer fabric

一种聚四氟乙烯、双层织物的技术，应用在织物、多股织物、纺织等方向，能够解决复合材料与金属表面剥离、很难粘贴、自润滑轴承失效等问题，达到受力变形小、生产成本低、摩擦系数小的效果

Active Publication Date: 2015-11-25
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the composite material has the characteristics of high strength and small friction coefficient, the invention uses phenolic resin, molybdenum disulfide, nano-alumina, and polytetrafluoroethylene ultrafine powder to prepare impregnated materials, and then coats them on the surface of the interwoven fabric. Obtain PTFE composite material, because the surface tension of PTFE composite material is small, its tension force is only 0.019N / m, it is a kind of solid material with the smallest surface tension at present, it is difficult to paste with other materials, so the above-mentioned PTFE composite material is bonded by adhesive When it is pasted on the steel surface, it is easy to peel off between the composite material and the metal surface after being subjected to external force during the movement, resulting in failure of moving parts such as self-lubricating bearings

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
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  • Double-layer fabric containing polytetrafluoroethylene fiber and application of double-layer fabric
  • Double-layer fabric containing polytetrafluoroethylene fiber and application of double-layer fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The surface warp and surface weft yarns are made of polytetrafluoroethylene filaments with a denier of 440dtex, a twist of 190t / m, and 60 filaments. , the tensile strength is 39.8N, and the polyamide full-drawn yarn with the elongation at break of 23.3%, the surface layer and the inner layer are set to adopt 3 / 3 twill weave, and the above-mentioned polytetrafluoroethylene fiber layer is bonded by joint bonding method It is integrated with the polyamide fiber layer, and then woven by a rapier loom to obtain a surface layer with a warp density of 120 threads / inch and a weft density of 90 threads / inch, and an inner layer with a warp density of 120 threads / inch and a weft density of 120 threads / inch. 90 threads / inch double layer fabric. The prepared double-layer fabric is placed under the conditions of a temperature of 20±2°C and a humidity of 65±4% for humidity conditioning treatment. The properties of the fabric were evaluated and are shown in Table 1. When the double-l...

Embodiment 2

[0047] The surface warp and surface weft yarns are all made of 40S / 2 cotton yarn, and the inside warp and inside weft yarns are all made of polytetrafluoroethylene filaments with a denier of 440dtex, a twist of 190t / m, and a number of 60 single filaments. The layers are all made of 2 / 2 twill weave, and the above-mentioned cotton fiber layer and the polytetrafluoroethylene fiber layer are bonded into one through the inner warp bonding method, and then weaved by a rapier loom to obtain a surface warp density of 90 / Inch, weft yarn density is 90 / inch, inner warp yarn density is 90 / inch, weft density is 90 / inch double layer fabric. The prepared double-layer fabric is placed under the conditions of a temperature of 20±2°C and a humidity of 65±4% for humidity conditioning treatment. The properties of the fabric were evaluated and are shown in Table 1. When the double-layer fabric is applied to the bearing, the polytetrafluoroethylene fiber layer as the inner layer is used as the f...

Embodiment 3

[0049] The surface warp and surface weft yarns are all made of polytetrafluoroethylene filaments with a denier of 890dtex, a twist of 300t / m, and 120 single filaments. The inner warp and inner weft yarns are all made of 20S / 2 polyphenylene sulfide yarns. The surface layer and the inner layer are set to adopt 2 / 1 twill weave, and the above-mentioned polytetrafluoroethylene fiber layer and polyphenylene sulfide fiber layer are bonded into one body through the surface warp bonding method, and then weaved by a rapier loom. Obtain the double layer fabric that surface layer warp density is 90 / inch, weft density is 60 / inch, inner layer warp density is 90 / inch, weft density is 60 / inch. The prepared double-layer fabric is placed under the conditions of a temperature of 20±2°C and a humidity of 65±4% for humidity conditioning treatment. The properties of the fabric were evaluated and are shown in Table 1. When the double-layer fabric is applied to a bearing, the polytetrafluoroethylene...

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
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Abstract

The invention discloses a double-layer fabric containing Teflon fiber and an application thereof. The double-layer fabric is formed by integrally tying a Teflon fiber layer and other fiber layers through tying points, wherein the fineness of fiber forming the Teflon fiber layer is 50-1400dtex, the twist degree is 0-800t / m, and other fiber is one or more of cotton, polyester, polyamide and polyphenylene sulfide. The low-friction-coefficient fabric has the advantages of being small in friction coefficient, high in peeling strength, small in stress deformation and simple in process and can be applied to mechanical moving parts.

Description

[0001] This application is a divisional application of the Chinese patent application 201210497960.4 with the title of "a double-layer fabric containing polytetrafluoroethylene fibers and its application". technical field [0002] The invention relates to a double-layer fabric containing polytetrafluoroethylene fibers and its application. Background technique [0003] Traditional sliding bearings are generally made of metal materials, and this type of bearing is restricted in some occasions, such as underwater operations. Since lubricating oil is added to traditional bearings, in order to prevent oil leakage, oil dripping, etc., the application of traditional bearings in occasions where lubricating oil cannot be used is greatly limited. Therefore, it is necessary to develop an oil-free lubricated bearing. With the development of technology, people have developed a kind of pure polytetrafluoroethylene resin as the pressing surface, which is used in oil-free lubricating beari...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D15/10D03D11/00D03D13/00D03D15/58
Inventor 张尤娟杨丽丽
Owner TORAY IND INC
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