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Uvioresistant sheath-core composite self-adaptive fiber for Z-pinch wire-array load and preparing method thereof

An anti-ultraviolet, self-adaptive technology, applied in fiber processing, rayon manufacturing, fiber chemical characteristics, etc., can solve the problem that self-adaptive technology cannot complete the assembly process, and achieve straightness, high rebound rate, and high loading accuracy. Effect

Inactive Publication Date: 2015-12-09
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is impossible to complete the assembly process by using the previous self-adaptive technology combined with a single elastic material and multiple sets of ultra-fine wires. Therefore, it is necessary to develop a suitable elastic modulus and diameter, high stress stability and rebound rate, and good durability. Elastomers with aging properties

Method used

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  • Uvioresistant sheath-core composite self-adaptive fiber for Z-pinch wire-array load and preparing method thereof
  • Uvioresistant sheath-core composite self-adaptive fiber for Z-pinch wire-array load and preparing method thereof
  • Uvioresistant sheath-core composite self-adaptive fiber for Z-pinch wire-array load and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Preparation of core material:

[0047] Take 50 mol of polytetrahydrofuran diol with a number-average relative molecular weight of 1000, dehydrate it in vacuum at 105°C for 4 hours, reduce the water content to below 0.5%, and lower the temperature to 60°C; heat 100mol of diphenylmethane diisocyanate (MDI) to 60 ℃ to melt, add to the above vacuum-dried polytetrahydrofuran diol, stir, heat up to 80 ℃ and react for 1 hour to obtain a prepolymer; add 50mol of 1,4-butanediol chain extender to the prepolymer, Mix evenly, then pour into pre-treated molds, mature at 108°C for 20h, and leave at room temperature for 7d to obtain polyurethane.

[0048] Preparation of cortical material:

[0049] Get 40 parts by weight of ultraviolet blocking agent titanium dioxide, 15 parts by weight of ultraviolet absorber phenyl hydroxybenzoate, 15 parts by weight of light stabilizer 2,2'-thiobis(4-tert-octylphenoxy) nickel and 2 parts by weight 1 part dispersant sodium polyacrylate, mixed to pr...

Embodiment 2

[0054] Preparation of core material:

[0055] Take 50 mol of polytetrahydrofuran diol with a number-average relative molecular weight of 1000, dehydrate it in vacuum at 105°C for 4 hours, reduce the water content to below 0.5%, and lower the temperature to 60°C; heat 100mol of diphenylmethane diisocyanate (MDI) to 60 ℃ to melt, add to the above vacuum-dried polytetrahydrofuran diol, stir, heat up to 80 ℃ and react for 1 hour to obtain a prepolymer; add 50mol of 1,4-butanediol chain extender to the prepolymer, Mix evenly, then pour into pre-treated molds, mature at 108°C for 20h, and leave at room temperature for 7d to obtain polyurethane.

[0056] Preparation of cortical material:

[0057] Get 40 parts by weight of ultraviolet blocking agent titanium dioxide and 15 parts by weight of ultraviolet absorber phenyl o-hydroxybenzoate, 15 parts by weight of three (1,2,2,6,6-pentamethyl piperidinyl) phosphite and 2 parts by weight The dispersant sodium polyacrylate is mixed to prep...

Embodiment 3

[0062] Preparation of core material:

[0063] Take 50 mol of polytetrahydrofuran diol with a number-average relative molecular weight of 1000, dehydrate it in vacuum at 105°C for 4 hours, reduce the water content to below 0.5%, and lower the temperature to 60°C; heat 100mol of diphenylmethane diisocyanate (MDI) to 60 ℃ to melt, add to the above vacuum-dried polytetrahydrofuran diol, stir, heat up to 80 ℃ and react for 1 hour to obtain a prepolymer; add 50mol of 1,4-butanediol chain extender to the prepolymer, Mix evenly, then pour into pre-treated molds, mature at 108°C for 20h, and leave at room temperature for 7d to obtain polyurethane.

[0064] Preparation of cortical material:

[0065] Get 40 parts by weight of ultraviolet blocking agent titanium dioxide, 15 parts by weight of ultraviolet absorber phenyl phthalate, 15 parts by weight of 2,4,6-three (2-n-butoxyphenyl)-1,3,5-tri Oxyzine and 2 parts by weight of dispersant sodium polyacrylate are mixed to prepare an anti-ul...

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Abstract

The invention belongs to the field of Z-pinch wire-array loads and discloses a uvioresistant sheath-core composite self-adaptive fiber for a Z-pinch wire-array load and a preparing method thereof. The composite self-adaptive fiber comprises a sheath layer and a core layer, wherein the core layer is made of polyurethane, the sheath layer is prepared from uvioresistant master batches, the uvioresistant master batches are prepared from a uvioresistant compound additive and thermoplastic resin, and the uvioresistant compound additive is composed of an ultraviolet light blocking agent, an ultraviolet light absorber, a light stabilizer and a dispersing agent. The fiber is highly tolerant of ultraviolet light, long in service life during Z-pinch accelerated testing, and high in rebound resilience and capable of guaranteeing high loading precision even after a wire array is loaded multiple times. In the whole service life of the wire array, obvious stress relaxation does not occur, the rebounding stress of the wire array can be unchanged for a long term, and the straightness of the wire array is well guaranteed.

Description

technical field [0001] The invention belongs to the field of Z-pinch wire array loads, and in particular relates to an ultraviolet-resistant skin-core composite self-adaptive fiber for Z-pinch wire array loads and a preparation method thereof. Background technique [0002] In the research of inertial confinement fusion driven by Z-pinch, silk array is currently an ideal load. It forms plasma under the action of high current in pulse power device, and under the action of Lorentz force, it quickly pinches inward and generates high temperature. , High-density plasma. The precise control of the initial state of the wire array, such as the uniformity of the diameter of the ultra-fine wire, the uniform arrangement of the ultra-fine wire in the radial and angular directions of the electrode, and the straightness of the ultra-fine wire, is the key to obtaining high symmetry, high function and high energy radiation. source key. [0003] The installation of the wire array in the tar...

Claims

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Application Information

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IPC IPC(8): D01F8/16D01F8/06D01F8/10D01F8/12D01F1/10C08G18/66C08G18/42C08G18/48C08G18/10D01D5/08D01D5/34
Inventor 游革新陈晋凯杨波周秀文
Owner SOUTH CHINA UNIV OF TECH
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