Coating material for surface modification of PBO (Poly-p-phenylene Benzobisoxazole) fibers, surface modified PBO fibers and preparation and application thereof

A coating material and fiber surface technology, applied in the field of functional polymer composite materials, can solve the problems of short service life and high cost of PBO fibers, achieve high hydrophobic performance and weather resistance, increase service life and waterproof performance, and improve hydrophobicity Effect

Active Publication Date: 2017-11-24
LIVE WORKING CENT OF STATE GRID HUNAN ELECTRIC POWER +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the shortcoming of PBO fiber that the fiber strength drops very quickly under ultraviolet light irradiation, which makes the service life of PBO fiber short and the cost high, the invent

Method used

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  • Coating material for surface modification of PBO (Poly-p-phenylene Benzobisoxazole) fibers, surface modified PBO fibers and preparation and application thereof
  • Coating material for surface modification of PBO (Poly-p-phenylene Benzobisoxazole) fibers, surface modified PBO fibers and preparation and application thereof
  • Coating material for surface modification of PBO (Poly-p-phenylene Benzobisoxazole) fibers, surface modified PBO fibers and preparation and application thereof

Examples

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Effect test

Embodiment 1

[0056] 1) Soak the PBO fiber in alcohol solution for 24 hours, wash it with distilled water and dry it; use an ethanol solution containing 5% coupling agent KH-560 to ultrasonically vibrate the PBO fiber for 10 minutes, and cure it at 120°C for 1 hour;

[0057] 2) 1 g of heptadecafluorodecyltrimethoxysilane and 33.33 g of isopropanol were mixed and ultrasonically treated for 1 to 2 hours to obtain a 3 wt % solution of heptadecafluorodecyltrimethoxysilane in isopropanol;

[0058] 3) Dissolve 3g of cycloaliphatic epoxy resin (JEW-0114, epoxy value 0.478, Changshu Jiafa Chemical Co., Ltd.) in 15g of ethyl acetate solution, and stir until the cycloaliphatic epoxy resin is completely dissolved in acetic acid In the solution of ethyl ester; The isopropanol solution (heptadecafluorodecyltrimethoxysilane 0.09g, 2.91 g of isopropanol) was evenly mixed in the ethyl acetate solution of cycloaliphatic epoxy resin, then 0.54 g of curing agent low-molecular polyamide 650 was added, and ultr...

Embodiment 2

[0061] 1) Soak the PBO fiber in alcohol solution for 24 hours, wash it with distilled water and dry it; use an ethanol solution containing 5% coupling agent KH-560 to ultrasonically vibrate the PBO fiber for 10 minutes, and cure it at 120°C for 1 hour;

[0062] 2) Mixing 1 g of heptadecafluorodecyltrimethoxysilane with 33.33 g of isopropanol and ultrasonically treating it for 1 to 2 hours to obtain a 3 wt % solution of heptadecafluorodecyltrimethoxysilane in isopropanol;

[0063] 3) Dissolve 3g of cycloaliphatic epoxy resin (JEW-0114, epoxy value 0.478, Changshu Jiafa Chemical Co., Ltd.) in 15g of ethyl acetate solution, and stir until the cycloaliphatic epoxy resin is completely dissolved in acetic acid In the solution of ethyl ester; The isopropanol solution (heptadecafluorodecyltrimethoxysilane 0.09g, isopropanol) of heptadecafluorodecyltrimethoxysilane obtained by 1g ultraviolet absorber UV-328 and 3g step 2) Propanol (2.91g) was evenly mixed in the ethyl acetate solution ...

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Abstract

The invention discloses a coating material for surface modification of PBO (Poly-p-phenylene Benzobisoxazole) fibers. The coating material is prepared from an ultraviolet absorbent, heptadecafluorodecyl trimethoxysilane, cycloaliphatic epoxy resin, a curing agent and an organic solvent. The invention further provides a method for carrying out surface modification on the PBO fibers and surface modified PBO fibers prepared through the method. Furthermore, the invention further provides an extra-high voltage live working tool soft material which is prepared by braiding and twisting the surface modified PBO fibers. The treated PBO fibers overcome the disadvantage of no ageing resistance, have very good insulating performance and can be widely applied to insulating ropes for extra-high voltage live working.

Description

technical field [0001] The invention relates to a novel soft material of an ultra-high voltage live working tool, which belongs to the field of functional polymer composite materials. Background technique [0002] UHV transmission lines have the characteristics of high voltage, strong induced electric field, difficult operation and maintenance, high line tower, high wire tension, large size of fittings and insulators, etc. The corresponding live working tools are large in size and heavy in weight. Therefore, the ropes for live working are required to have properties such as high tensile strength, insulation and non-deformability. At present, insulated ropes for UHV liveliness work on the market are mainly woven and twisted from silk or synthetic fibers. The moisture-proof performance of existing silk ropes and synthetic fibers is relatively poor, mainly because the moisture-proof treatment of existing silk ropes and synthetic fibers adopts waterproofing agent coating on the...

Claims

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Application Information

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IPC IPC(8): D06M15/55D06M13/513D06M101/30
CPCD06M13/513D06M15/55D06M2101/30D06M2200/25
Inventor 刘夏清李芝华邹德华刘兰兰李慧牛捷童诚严宇汪志刚杨淼李稳
Owner LIVE WORKING CENT OF STATE GRID HUNAN ELECTRIC POWER
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