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A kind of inorganic flame retardant phase change energy storage cellulose fiber and its preparation method

A cellulose fiber and phase change energy storage technology, which is applied in the manufacture of fire-resistant and flame-retardant filaments, cellulose/protein conjugated artificial filaments, and fiber chemical characteristics, can solve the functions of no flame-retardant properties and delayed temperature changes Combining together, prolonging the time of the defoaming process and mixing and dissolving process, and the difficulty in mixing the liquid flame retardant with the viscose solution, etc., to achieve excellent heat preservation effect, excellent deodorization performance, and the effect of improving the human body's sensory limit

Active Publication Date: 2021-06-15
青岛邦特生态纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the liquid flame retardant used in this product is directly used in industrial production, a large number of bubbles will be generated during long-distance transportation and product mixing and dissolution. The time of the soaking process and the mixing and dissolving process reduces the production efficiency
[0006] In addition, combustion is generally accompanied by high temperature, which brings great pain to the wearers, such as firefighters. The instantaneous temperature rise often reaches the limit of the human body's perception, and thus makes an unreasonable instinctive reaction, which seriously threatens the safety of life.
At present, there is no regenerated cellulose fiber product that combines the functions of flame retardancy and delaying temperature changes

Method used

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  • A kind of inorganic flame retardant phase change energy storage cellulose fiber and its preparation method
  • A kind of inorganic flame retardant phase change energy storage cellulose fiber and its preparation method
  • A kind of inorganic flame retardant phase change energy storage cellulose fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1 A preparation method of inorganic flame-retardant phase-change energy-storage cellulose fibers, the specific production process includes the following steps:

[0061] 1. Preparation of viscose spinning solution

[0062] 1. Pulp is impregnated, squeezed, crushed, aged, and yellowed, and then a flame-retardant emulsion modifier is added to the viscose spinning solution in the dissolving process, and then filtered, defoamed, and aged to make a conventional sulfonate Method viscose spinning solution; viscose spinning solution indicators: alkali: 3.5 ± 0.2%, methyl fiber: 7.3 ± 0.2%, maturity: 12ml (15% ammonium chloride), viscosity 55S.

[0063] The configuration method of the flame retardant emulsion modifier: mix sodium bicarbonate: sodium carbonate: flame retardant emulsion modifier according to the ratio, add 6 times the weight of water, add the dispersant and stir at 60±3°C for 2 hours; The mass ratio of sodium: sodium carbonate: flame retardant emulsion mod...

Embodiment 2

[0080] Example 2 A preparation method of inorganic flame-retardant phase-change energy-storage cellulose fibers, the specific production process includes the following steps:

[0081] 1. Preparation of viscose spinning solution

[0082] 1. Pulp is impregnated, squeezed, crushed, aged, and yellowed, and then a flame-retardant emulsion modifier is added to the viscose spinning solution in the dissolving process, and then filtered, defoamed, and aged to make a conventional sulfonate viscose spinning solution; the index of viscose spinning solution is: alkali: 3.5±0.2%, methyl fiber: 7.3±0.2%, maturity: 15ml (15% ammonium chloride), viscosity 50-60S;

[0083] The configuration method of the flame retardant emulsion modifier: mix sodium bicarbonate: sodium carbonate: flame retardant emulsion modifier according to the ratio, add 6 times the weight of water, add the dispersant and stir at 60±3°C for 2 hours; The mass ratio of sodium: sodium carbonate: flame retardant emulsion modifi...

Embodiment 3

[0106] Example 3 A preparation method of inorganic flame-retardant phase-change energy storage cellulose fibers, the specific production process includes the following steps:

[0107] 1. Preparation of viscose spinning solution

[0108] 1. Pulp is impregnated, squeezed, crushed, aged, and yellowed, and then a flame-retardant emulsion modifier is added to the viscose spinning solution in the dissolving process, and then filtered, defoamed, and aged to make a conventional sulfonate Method viscose spinning solution; viscose spinning solution indicators: alkali: 3.5±0.2%, methyl fiber: 7.3±0.2%, maturity: 15ml (15% ammonium chloride), viscosity 60S.

[0109] The configuration method of the flame retardant emulsion modifier: mix sodium bicarbonate: sodium carbonate: flame retardant emulsion modifier according to the ratio, add 6 times the weight of water, add the dispersant and stir at 60±3°C for 2 hours; The mass ratio of sodium: sodium carbonate: flame retardant emulsion modifie...

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Abstract

The invention provides an inorganic flame-retardant phase-change energy storage cellulose fiber. The fiber is composed of an inner layer and an outer layer. The inner layer is distributed with a flame retardant porous component and a micro-cavity structure formed. Phase change microcapsules and plant-derived ingredients. The melting enthalpy value of the fiber is above 25J / g, the melting temperature is 28-32°C, the crystallization enthalpy value is above 24.5J / g, and the crystallization temperature is 27-22°C. In the heating stage of 20-40°C, the fiber begins to absorb heat at 28°C, and its own heating rate gradually slows down. At 30°C, the temperature difference with ordinary fibers under the same conditions is the largest, up to 7‑8°C. During the process of phase change when the temperature rises, the average temperature of the phase change fiber is 3°C lower than that of the ordinary fiber. In the cooling stage of 40-20°C, the temperature-regulating fiber starts to release heat at 27°C, and its own cooling rate gradually slows down. At 24°C, the temperature difference with ordinary fibers is the largest, up to 6‑7°C.

Description

technical field [0001] The invention relates to a cellulose fiber and a preparation method thereof, in particular to an inorganic flame-retardant phase-change energy storage cellulose fiber and a preparation method thereof. Background technique [0002] With the country's emphasis on safety and the continuous improvement of safety laws and regulations, especially driven by the Chinese Academy of Engineering's "High-performance Fiber and Its Products Development Strategy Research" project and the National 863 Project, my country's flame-retardant fibers are the same as other high-performance fibers , has developed rapidly. Including meta-aramid fiber, polyaryl sulfone fiber, polyarylene oxadiazole fiber, high-strength flame-retardant vinylon, polyimide fiber and polytetrafluoroethylene fiber, etc. Some of these fibers have reached mature industrial production, and some have begun to enter Industrial production. [0003] Under the background that my country's domestic flame-r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/02D01F1/07D01F1/10
CPCD01F1/07D01F1/103D01F8/02
Inventor 山传雷姜明亮
Owner 青岛邦特生态纺织科技有限公司