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Inorganic flame retardant fireproof heat insulation tape and application thereof

An inorganic flame-retardant and heat-insulating tape technology, which is applied in fiber mechanical structures, cables, insulated conductors, etc., can solve the problems of secondary injury and poor heat insulation performance of fire rescue personnel, and achieve excellent fire resistance and high temperature resistance. and thermal insulation performance, the effect of good application prospects

Active Publication Date: 2017-05-31
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the flame-retardant and fire-resistant tapes currently on the market have certain flame-retardant performance in a fire, their heat insulation performance is poor. At the same time, a large amount of toxic gas and smoke will be released in a fire, which will cause secondary damage to fire rescue personnel.

Method used

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  • Inorganic flame retardant fireproof heat insulation tape and application thereof
  • Inorganic flame retardant fireproof heat insulation tape and application thereof
  • Inorganic flame retardant fireproof heat insulation tape and application thereof

Examples

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preparation example Construction

[0022] Preparation of ultralong nanowires from hydroxyapatite. The hydroxyapatite ultra-long nanowires of the present invention can be prepared by solvothermal method, and can be prepared by referring to literature and patent reports: Zhu Yingjie, Lu Bingqiang, Chen Feng, High flexibility, high temperature and non-combustible hydroxyapatite Paper and its preparation method, patent number ZL201310687363.2; Ying-Ying Jiang, Ying-JieZhu, Feng Chen, Jin Wu, Ceramics International, 41, 6098-6102 (2015); Yong-GangZhang, Ying-Jie Zhu Feng Chen, Jin Wu, Materials Letters, 144, 135-137 (2015). Other suitable preparation methods can also be used, as long as the method can be used to prepare the hydroxyapatite ultra-long nanowires. The diameter of the hydroxyapatite ultra-long nanowires may be 5-100 nm, and the length may be 20-2000 μm.

[0023] The present invention preferably adopts a two-dimensional network structure hydroxyapatite nanowire assembled from hydroxyapatite nanowires wi...

Embodiment 1

[0036] Glass fibers with a length of 3 mm and a diameter of 6 μm are configured into an aqueous suspension with a concentration of 0.5 wt.%, and mixed with an aqueous suspension of hydroxyapatite ultralong nanowires with a concentration of 0.5 wt.%. The weight percentage of the long nanowire is 80wt.%. After slowly stirring for 1min, the slurry is obtained. The compounded slurry is formed by filtration on a Kaiser rapid paper former, and the formed paper is squeezed (the pressure is 5MPa, time is 3 minutes), dried (at a temperature of 95° C. and a time of 3 minutes) to prepare an inorganic fire-resistant paper with a thickness of 190 μm and a tensile strength of 6 MPa. The inorganic fire-resistant paper is cut into a width of 20mm for optical (electrical) cables with flame-retardant fire-resistant heat-insulating tapes;

[0037] Wrap the flame-retardant and heat-resistant heat-insulating tape on the thermocouple and burn it on the flame of the alcohol lamp for 5 minutes, the t...

Embodiment 2

[0039] Glass fibers with a length of 6 mm and a diameter of 6 μm are configured into an aqueous suspension with a concentration of 0.2 wt.%, mixed with an aqueous suspension of hydroxyapatite ultralong nanowires with a concentration of 0.5 wt.%, and the ultra-long nanowires of hydroxyapatite The weight percentage of the long nanowire is 60wt.%. After slowly stirring for 1min, the slurry is obtained. The compounded slurry is filtered and formed on a Kaiser rapid paper former, and the formed paper is squeezed (the pressure is 2MPa, time is 8min), dried (temperature is 65°C, time is 30min), and then prepared into an inorganic fire-resistant paper with a thickness of 100 μm and a tensile strength of 5 MPa. The inorganic fire-resistant paper was cut into flame-retardant, fire-resistant and heat-insulating tapes for optical (electrical) cables with a width of 20 mm. Wrap it on a thermocouple and burn it on the flame of an alcohol lamp for 5 minutes, and the temperature of the thermo...

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Abstract

The invention relates to an inorganic flame retardant fireproof heat insulation tape and application thereof. The inorganic flame retardant fireproof heat insulation tape comprises a hydroxyapatite super long nanowire and glass fiber. The width of the inorganic flame retardant fireproof heat insulation tape is between 10mm and 200mm and is 20mm preferably. The inorganic flame retardant fireproof heat insulation tape is used for coating an electric cable or optical cable. Compared with a traditional flame retardant tape, the optical (electric) cable tape prepared in the invention has excellent fire resistance, high temperature resistance and heat insulation performance, does not burn in flame, no smoke and harmful gas are released, and the tape has a good application prospect in the field of flame retardant fireproof optical (electric) cables.

Description

technical field [0001] The invention belongs to the field of optical (electrical) cable wrapping and its application, and specifically relates to a novel inorganic flame-retardant, fire-resistant and heat-insulating wrapping for optical (electrical) cables prepared by compounding ultra-long nanowires of hydroxyapatite and glass fibers bring. Background technique [0002] If the "Internet" is called the "highway" of today's information society, then the optical (electrical) cable is the cornerstone (the physical route of the Internet) on the information highway. With the rapid development of communication technology, optical (electrical) cables are widely used in various fields, such as civil buildings, rail transit, oil fields, mines, military information base stations, etc. In the event of a fire, maintaining unimpeded communication is essential for fire rescue and reducing personnel and property losses. Therefore, flame-retardant and fire-resistant communication optical (...

Claims

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Application Information

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IPC IPC(8): G02B6/44H01B7/295
CPCG02B6/4436H01B7/295
Inventor 朱英杰董丽颖
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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