Ultraviolet-resistant melamino-formaldehyde resin fiber and preparation method thereof

A melamine and formaldehyde resin technology, applied in the chemical characteristics of fibers, rayon manufacturing, single-component synthetic polymer rayon, etc., can solve the problem of resin fibers not being UV resistant, and achieve the effect of lasting UV resistance.

Inactive Publication Date: 2016-12-21
郑州峰泰纳米材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the technical problem to be solved in the present invention is to provide a kind of anti-ultraviolet melamine formaldehyde resin fiber and its preparation method, which can solve the technical problem that the resin fiber is not resistant to ultraviolet rays

Method used

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  • Ultraviolet-resistant melamino-formaldehyde resin fiber and preparation method thereof
  • Ultraviolet-resistant melamino-formaldehyde resin fiber and preparation method thereof
  • Ultraviolet-resistant melamino-formaldehyde resin fiber and preparation method thereof

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preparation example Construction

[0033] The present invention also provides a kind of preparation method of anti-ultraviolet melamine formaldehyde resin fiber, comprises the following steps:

[0034] Disperse the melamine formaldehyde resin, filler, surfactant and light stabilizer in water, add dopamine hydrochloride after the dispersion is uniform; keep it in the dark for 18-36 hours, then add olefin polymer, seal and stir at 40-50°C React for 8-15 hours to obtain the melamine-formaldehyde resin spinning stock solution;

[0035]The melamine-formaldehyde resin spinning stock solution is extruded through a spinneret hole, and the extruded product enters a coagulation bath through an air layer to be solidified, and after washing and drying, the anti-ultraviolet melamine-formaldehyde resin fiber is obtained.

[0036] In the present invention, dopamine hydrochloride is added to the solution mixed with melamine formaldehyde resin, filler and light stabilizer, and kept away from light for 18-36 hours, so that the m...

Embodiment 1

[0051] Disperse 80g melamine formaldehyde resin, 8g sodium dodecylbenzene sulfonate, 15g titanium dioxide and 1.5g 2-(2'-hydroxyl-5'-methylphenyl)benzotriazole in 40g water, stir well Add 3g of dopamine hydrochloride; after standing in the dark for 18h, add 15g of polybutene, 5g of NaHSO 4 , Sealed and stirred at 40° C. for 8 hours to obtain a melamine-formaldehyde resin spinning stock solution.

[0052] The above-mentioned melamine-formaldehyde resin spinning stock solution is formed by dry spraying and wet spinning, and the spinning slurry at room temperature is accurately metered with a metering pump, and then extruded from the spinneret hole, wherein the spinneret has 200 holes, and the hole diameter is 0.2mm , the spray ratio is 1.5 times, and the spinning speed is 100m / min; the extrudate obtained by extruding through the spinneret hole passes through the air layer with a height of 10mm into the dimethyl sulfoxide and water with a volume ratio of 1:4 In a coagulation bat...

Embodiment 2

[0054] Disperse 150g of melamine formaldehyde resin, 10g of sodium lauryl sulfate, 15g of calcium carbonate and 2g of 2-(2'-hydroxy-3',5'-α,α-dimethylbenzyl)benzotriazole in 90g In water, stir well and add 15g of dopamine hydrochloride; after standing in the dark for 36h, add 40g of binary ethylene propylene rubber, 15g of NH 4 Cl, sealed and stirred at 50° C. for 15 h to obtain a melamine-formaldehyde resin spinning stock solution.

[0055] The above-mentioned melamine-formaldehyde resin spinning stock solution is spun and formed by wet spinning technology, and the spinning slurry at room temperature is accurately measured by a metering pump, and then extruded from the spinneret hole, wherein the spinneret has 30 holes, and the hole diameter is 0.12. mm, the spray ratio is 2.0 times, and the spinning speed is 30m / min; the extrudate obtained by extruding through the spinneret hole enters the coagulation of N,N-dimethylformamide and water with a volume ratio of 1:6 bath, washe...

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Abstract

The invention provides an ultraviolet-resistant melamino-formaldehyde resin fiber and a preparation method thereof. The resin fiber is prepared from, by weight, 80-150 parts of melamino-formaldehyde resin, 3-15 parts of dopamine hydrochloride, 15-40 parts of alkene polymers, 5-15 parts of a surfactant, 0.5-3 parts of a light stabilizer and 10-15 parts of filler. The light stabilizer is used for improving ultraviolet resistance of the ultraviolet-resistant melamino-formaldehyde resin fiber; the dopamine hydrochloride is used for wrapping the melamino-formaldehyde resin, the light stabilizer and the filler to enable durable ultraviolet resistance of the ultraviolet-resistant melamino-formaldehyde resin fiber; a hydroxyl radical of the dopamine hydrochloride can react with the alkene polymers to make the ultraviolet-resistant melamino-formaldehyde resin fiber high in tensile strength. According to experimental results, the ultraviolet-resistant melamino-formaldehyde resin fiber prepared from the raw materials in the ratio is 70.1MPa or above in tensile strength and is 95.1% or above in tensile strength retention rate after irradiation for 4000h.

Description

technical field [0001] The invention relates to the field of melamine-formaldehyde resin, in particular to an anti-ultraviolet melamine-formaldehyde resin fiber and a preparation method thereof. Background technique [0002] Melamine formaldehyde resin is a polymer obtained by the reaction of melamine and formaldehyde. The resin has the advantages of high strength, heat resistance, arc welding resistance, flame retardancy, and stable size, so it is widely used in electronics, electrical appliances, construction, transportation, daily necessities and other industries. However, melamine-formaldehyde resin has poor UV resistance, and its mechanical properties are greatly reduced after being irradiated by ultraviolet rays, which greatly limits its application field. Contents of the invention [0003] In view of this, the technical problem to be solved by the present invention is to provide an anti-ultraviolet melamine formaldehyde resin fiber and a preparation method thereof,...

Claims

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Application Information

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IPC IPC(8): D01F6/94D01F1/10
CPCD01F1/106D01F6/94
Inventor 李洋洋樊雪子李磊磊
Owner 郑州峰泰纳米材料有限公司
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