Inorganic nanometer silica modified PBT nanometer composite spinning material, and preparation method thereof

An inorganic nano-silicon and nano-composite technology, which is applied in the manufacture of rayon, textiles and paper, single-component polyester rayon, etc., can solve the problems of PBT industrial application impact, sensitivity to warping gaps, etc., and achieve product The effect of high added value and good compatibility

Active Publication Date: 2019-07-02
芜湖万隆新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two shortcomings of PBT products, which are easy to warp and notch sensitivity, which affects the industrial application of PBT to a certain extent.

Method used

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  • Inorganic nanometer silica modified PBT nanometer composite spinning material, and preparation method thereof
  • Inorganic nanometer silica modified PBT nanometer composite spinning material, and preparation method thereof
  • Inorganic nanometer silica modified PBT nanometer composite spinning material, and preparation method thereof

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preparation example Construction

[0028] According to the present invention, the preparation method of the described modified inorganic nano-silica comprises:

[0029] Mix and grind sheet-shaped potassium aluminum silicate, dispersant, surfactant and deionized water to obtain modified inorganic nano-silica; the thickness of the sheet-shaped potassium aluminum silicate is less than or equal to 200nm, and the value of the diameter-thickness ratio is The range is 10-20. When the aspect ratio is greater than 20, the spinnability of the nanocomposite brush filament will be affected; when the aspect ratio is less than 10, the microstructure of the nanocomposite brush filament surface does not change significantly, and the expected powder sticking effect cannot be achieved. The mass percent of the sheet-like potassium aluminum silicate, dispersant, silane coupling agent and deionized water is preferably 50:10:2:38.

[0030] According to the present invention, the grinding can be done by means commonly used in this f...

Embodiment 1

[0037] After dedusting and impurity removal of sheet-shaped potassium aluminum silicate (diameter-thickness ratio: 10, thickness: 200nm), take 50 parts of sheet-shaped potassium aluminum silicate, 10 parts of dispersant BYK163, 2 parts of silane coupling agent KH560, deionized water 38 parts were subjected to high-speed wet grinding for 10 hours, and spray-dried to obtain modified inorganic nano-silica;

[0038] Drying the PBT material and the modified inorganic nano-silica, the drying temperature is 125°C, and the drying time is 4h, which can improve the spinnability of the fiber; the PBT material: 97.4 parts by weight, the modified inorganic nano-silica : 0.1 part, Antioxidant 1010: 1.0 part, Lubricant 3853: 1.5 part Stir and mix until uniform, adopt melt blending method, make the mixture extrude and granulate through twin-screw extruder; extrusion temperature is 270°C , and then dry the pellets in a vacuum oven at 125°C; then extrude and spin the pellets; the highest spinni...

Embodiment 2

[0040] After dedusting and impurity removal of sheet-shaped potassium aluminum silicate (diameter-thickness ratio: 10, thickness: 200nm), take 50 parts of sheet-shaped potassium aluminum silicate, 10 parts of dispersant BYK163, 2 parts of silane coupling agent KH560, deionized water 38 parts were subjected to high-speed wet grinding for 10 hours, and spray-dried to obtain modified inorganic nano-silica;

[0041] Dry the PBT material and the modified inorganic nano-silica, the drying temperature is 125 ° C, and the drying time is 4 hours, which can improve the spinnability of the fiber; the PBT material: 97.3 parts by weight, the modified inorganic nano-silica : 0.2 parts, Antioxidant 1010: 1.0 parts, Lubricant 3853: 1.5 parts Stir and mix until uniform, adopt melt blending method, make the mixture extrude and granulate through twin-screw extruder; extrusion temperature is 270°C , and then dry the pellets in a vacuum oven at 125°C; then extrude and spin the pellets; the highest...

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Abstract

The invention provides an inorganic nanometer silica modified PBT nanometer composite spinning material, and a preparation method thereof, and belongs to the technical field of high molecular material. The inorganic nanometer silica modified PBT nanometer composite spinning material is composed of, by weight, 60 to 96 parts of PBT, 0.1 to 10 parts of modified inorganic nano-silica, 0.5 to 2 partsof an antioxidant, and 0.5 to 8 parts of a lubricant. The invention also provides a preparation method of the inorganic nanometer silica modified PBT nanometer composite spinning material. According to the preparation method, surface modification of inorganic nanometer silica is carried out, an obtained product is adopted to fill PBT through uniform dispersion in the PBT matrix, and the compatibility is excellent, so that the polyester fiber is provided with excellent spinnability, and the surface of the prepared fiber has obviously concave and convex feel, the performance and the structure are similar to those of wool.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an inorganic nano-silica modified PBT nano-composite spinning material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is an important member of the polyester family. Its synthesis method is polycondensation of 1,4 butanediol and terephthalic acid or terephthalate, and it is manufactured through mixing and banburying process. into a translucent thermoplastic crystalline polymer resin. The main chain of PBT is composed of saturated linear molecules, and its repeating units are composed of rigid benzene rings and flexible fatty alcohols. Because the molecular chain contains benzene rings and aliphatic groups, PBT has relatively high rigidity and good flexibility. The structural characteristics of the sample make it have low water absorption and acid and alkali resistance properties. Due to its regular structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K9/06C08K3/34D01F6/92D01F1/10
CPCC08K3/34C08K9/06C08K2201/011C08K2201/016D01F1/10D01F6/92C08L67/02
Inventor 周光远李璐姜国伟
Owner 芜湖万隆新材料有限公司
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