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Application of nano barium sulfate in manufacturing chemical fibers and chemical fiber

A technology of nano-barium sulfate and precipitated barium sulfate, which is applied to chemical fiber. Fields, to increase the scope of promotion and application, easy to operate, improve the effect of mechanical properties

Active Publication Date: 2013-03-13
FOSHAN ONMILLION NANO MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no technical solution to successfully apply nano-barium sulfate to the manufacture of chemical fibers.

Method used

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  • Application of nano barium sulfate in manufacturing chemical fibers and chemical fiber
  • Application of nano barium sulfate in manufacturing chemical fibers and chemical fiber
  • Application of nano barium sulfate in manufacturing chemical fibers and chemical fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Add 600kg industrial grade light barium carbonate and 3400kg water in 5 cubic reactors, solid content is 15%. Add 25kg hydrochloric acid (concentration 31%) in the reactor. The stirring speed of the reactor was controlled at 200r / min, and then 300kg of concentrated sulfuric acid (concentration 98%) was added at a constant speed within 30-40 minutes until the reaction was completed. The pH at the end of the reaction was controlled at 5.5. After the barium sulfate slurry that reacted is filtered with 1000 order filter screens with strainer, obtain 720Kg precipitated barium sulfate. In precipitated barium sulfate, add the aqueous solution of sodium stearate weight content 10% at a uniform speed to precipitated barium sulfate and carry out surface treatment, adding time is 30 minutes, and sodium stearate weight is 20kg, and the temperature during modification is controlled at 80 ℃, then The modified nano-precipitated barium sulfate powder is obtained by dehydrating with a...

Embodiment 2

[0061] Add 1000kg of industrial-grade light barium carbonate to a 5 cubic reactor, add 3000kg of water, add 25kg of hydrochloric acid (concentration 31%), control the stirring speed of the reactor at 250r / min, and then add 500kg of concentrated barium carbonate at a constant speed within 30-40 minutes. Sulfuric acid (concentration 98%) until the reaction is complete. The pH at the end of the reaction was controlled at 5.6. After filtering the reacted barium sulfate slurry with a 1000 mesh filter screen with a filter screen, 1200Kg of precipitated barium sulfate is obtained. In precipitated barium sulfate, add the aqueous solution of sodium stearate weight content 5% at a constant speed to precipitated barium sulfate and carry out surface treatment, adding time is 20 minutes, and sodium stearate weight is 30kg, and the temperature during modification is controlled at 80 ℃, then The modified nano-precipitated barium sulfate powder is obtained by dehydrating with a filter press,...

Embodiment 3

[0066] Add 200kg industrial-grade light barium carbonate and 3800kg water in a 5 cubic reaction kettle, and the solid content is 5%. Add 20kg of sodium chloride in the reactor. The stirring speed of the reactor was controlled at 100r / min, and then 100kg of concentrated sulfuric acid (concentration 98%) was added at a constant speed within 50 minutes until the reaction was completed. The pH at the end of the reaction was controlled at 6. After the barium sulfate slurry that reacted is filtered with 1000 order filter screens with strainer, obtain 240Kg precipitated barium sulfate. Add 10kg of vinyltrichlorosilane modifier to the precipitated barium sulfate at a uniform speed for surface treatment. The addition time is controlled at 40 minutes, and the temperature during modification is controlled at 55°C. Then dehydrate with a filter press and use a flash dryer Drying, automatic packaging machine packaging into modified nano-precipitated barium sulfate powder. The particle si...

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Abstract

The invention discloses a novel application of nano barium sulfate, which not only broadens the application scope of the nano barium sulfate but also improves mechanical properties of polyethylene fibers. The process of manufacturing chemical fibers by the nano barium sulfate is simple, has reasonable and reliable technical indexes, is easy to operate and greatly improves the mechanical properties of the polyethylene material, such as tensile strength, impact strength, elongation at break and the like. The use of the nano barium sulfate can greatly reduce the production cost of the polyethylene fibers and further broaden the popularization and application scope of the polyethylene fibers.

Description

technical field [0001] The invention relates to the use of nanometer barium sulfate in manufacturing chemical fibers and the chemical fibers. Background technique [0002] Polyethylene chemical fibers are widely used in various industries, especially in fishing nets, ropes and other industries. However, there is a certain gap between the mechanical properties of polyethylene itself and nylon, which cannot meet some high-strength applications, resulting in limitations in its application and promotion. [0003] The various aspects performances of polyethylene fiber and nylon produced in the prior art are as follows: [0004] Variety Tensile strength MPa Elongation at break% Notched impact strength kJ / m 2 Tensile Grade Polyethylene 24 500 15 Brushed Grade Nylon 60 200 10 [0005] But although the polyethylene fiber in the prior art has possessed corresponding mechanical strength to a certain exte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/10C09C1/02C09C3/06C09C3/10C09C3/08C09C3/12D01F6/46
Inventor 陈焰方利浮郑明东
Owner FOSHAN ONMILLION NANO MATERIALS
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