Application of nano barium sulfate in manufacturing film and film

A nano-barium sulfate and thin-film technology, which is applied in the direction of fibrous filler, dyed low-molecular organic compound treatment, dyed high-molecular organic compound treatment, etc., to achieve the effect of reducing production cost, simple process and easy operation

Active Publication Date: 2013-03-27
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 thin films.

Method used

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  • Application of nano barium sulfate in manufacturing film and film
  • Application of nano barium sulfate in manufacturing film and film
  • Application of nano barium sulfate in manufacturing film and film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 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

[0059] 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

[0064] 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 new application of nano barium sulfate, which not only widens the service range of nano barium sulfate, but also improves mechanical performance of a film. The process for manufacturing the film by using nano barium sulfate has the advantages of simple process, reasonable and reliable technical indexes, easy operation, and greatly improved properties of the film, such as tensile strength, elongation in tension and service life; in addition, by using nano barium sulfate, the production cost of the film is greatly lowered, and the application range of the film is further widened.

Description

technical field [0001] The invention relates to the use of nanometer barium sulfate in making thin films and the thin film. Background technique [0002] Polyethylene film is widely used in various industries. In use, the film needs to be stretched to some extent. Therefore, both tensile elongation and tensile strength are important indicators for considering film quality. Each field has specific requirements for the tensile elongation and tensile strength of the film. During use, after the film is exposed to sunlight, it needs to maintain good tensile strength and tensile elongation for a certain period of time. In some fields, the light transmittance of the film is required to reach more than 70%, otherwise it cannot be used. Production cost is also an important factor affecting the popularization and application of thin films. [0003] Polyethylene films are especially used in agricultural films and occupy a large proportion. However, the mechanical strength and wea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/02C08K9/04C08K9/06C08K3/30C09C1/02C09C3/06C09C3/10C09C3/08C09C3/12C08L23/06C08L51/06
Inventor 陈焰方利浮郑明东
Owner FOSHAN ONMILLION NANO MATERIALS
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