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Composite glass powder transparent plastic master batch and preparation method

A composite glass and transparent plastic technology, applied in the field of plastic masterbatch, can solve the problems of reducing transparency and achieve good transparency, high sphericity, and less surface defects

Inactive Publication Date: 2019-12-20
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defects existing on the surface of the current glass powder, which is prone to diffuse reflection and reduces the transparency, the present invention proposes a composite glass powder transparent plastic masterbatch and its preparation method. Firstly, the glass powder is modified to obtain a spherical composite glass powder with uniform particle size. And then added to the plastic to make a masterbatch, which improves the transparency of the plastic masterbatch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Mix the glass powder with sodium sulfate decahydrate and stearic acid in a mass ratio of 10:1:0.3, and then send it into the air impact machine to impact with high-speed hot air at 50°C and 0.3 L / min. Sodium sulfate decahydrate Under the action of hot air flow, the surface defects of the glass powder are melted and repaired, and the glass powder is rotated and suspended under the impact of the air flow, and the glass powder is further spheroidized to obtain a composite glass powder; the whiteness of the glass powder is greater than 95, and the particle size is 5 μm;

[0038](2) Send the composite glass powder into the cyclone separator, and then send it into the high-temperature hot air flow at 110°C, control the classification speed of the cyclone separator to 1600rpm, and separate the composite glass powder with uniform particle size;

[0039] (3) Disperse the separated composite glass powder and dispersant in a high-speed mixer at 120°C and 200rpm for 20 minutes a...

Embodiment 2

[0042] (1) Mix the glass powder with sodium sulfate decahydrate and stearic acid in a mass ratio of 10:1:0.3, and then send it into the air impact machine and impact it with a high-speed hot air flow at 60°C and 0.1 L / min. Sodium sulfate decahydrate Under the action of hot air flow, the surface defects of the glass powder are melted and repaired, and the glass powder is rotated and suspended under the impact of the air flow, and the glass powder is further spheroidized to obtain a composite glass powder; the whiteness of the glass powder is greater than 95, and the particle size range is 10 μm;

[0043] (2) Send the composite glass powder into the cyclone separator, and then send it into the high-temperature hot air flow at 110°C, control the classification speed of the cyclone separator to 1600rpm, and separate the composite glass powder with uniform particle size;

[0044] (3) Disperse the separated composite glass powder and dispersant in a high-speed mixer at 120°C and 300r...

Embodiment 3

[0046] (1) Mix the glass powder with sodium sulfate decahydrate and stearic acid in a mass ratio of 10:0.8:0.3, then send it into the air impact machine and impact it with a high-speed hot air flow at 58°C and 0.2 L / min. Sodium sulfate decahydrate Under the action of hot air flow, the surface defects of the glass powder are melted and repaired, and the glass powder is rotated and suspended under the impact of the air flow, and the glass powder is further spheroidized to obtain a composite glass powder; the whiteness of the glass powder is greater than 95, and the particle size range is 8 μm;

[0047] (2) Send the composite glass powder into the cyclone separator, and then send it into the high-temperature hot air flow at 110°C, control the classification speed of the cyclone separator to 1600rpm, and separate the composite glass powder with uniform particle size;

[0048] (3) Disperse the separated composite glass powder and dispersant in a high-speed mixer at 120°C and 250rpm ...

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Abstract

The invention provides a composite glass powder transparent plastic master batch and a preparation method. The preparation method comprises the following steps: carrying out high-speed hot air flow impact on glass powder, sodium sulfate decahydrate and stearic acid to repair the surface defects of the glass powder, carrying out rotating suspension to spheroidize the glass powder, then feeding theglass powder into a cyclone separator, separating out composite glass powder with uniform particle size under high-temperature hot air flow, then mixing the composite glass powder with a dispersing agent and further blending the mixture with a coupling agent, a lubricant and carrier resin, and carrying out extruding, hot cutting and air cooling to obtain the transparent plastic master batch of thecomposite glass powder. According to the preparation method provided by the invention, the defect that the transparency of the master batch is reduced due to the fact that diffuse reflection is easily caused on the surface of the glass powder is overcome, and the transparency of the film obtained by mixing and blowing the prepared composite glass powder plastic master batch and polyethylene reaches about 90%.

Description

technical field [0001] The invention relates to the technical field of plastic masterbatch, in particular to a composite glass powder transparent plastic masterbatch and a preparation method thereof. Background technique [0002] The application of filler masterbatch in plastics was originally to reduce the raw material cost of plastic products and save synthetic resin. Because the masterbatch is not only a filling material, but also has the characteristics of improving the physical properties of plastic products and improving processing efficiency, the development speed is very fast. [0003] The plastics industry needs to take effective measures to resolve cost pressures, and adding fillers is the best way to reduce costs. When processing blown film bags, the theoretical upper limit of filler addition can be up to 30%, the purpose is to reduce costs, but it has a greater impact on the transparency of plastics. After the inorganic powder is compounded with plastic, it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K9/02C08K7/20C08J3/22B07B7/086
CPCB07B7/086C08J3/226C08J2423/06C08J2423/08C08K7/20C08K9/02C08K2201/003
Inventor 曾军堂陈庆
Owner CHENDU NEW KELI CHEM SCI CO LTD