A kind of transparent antistatic PMMA and preparation method thereof

An antistatic and transparent technology, applied in the field of polymer materials, can solve the problems of easy falling off, failure to achieve antistatic effect, and decline in antistatic performance, and achieve the effects of cheap price, favorable promotion and application, and safe reagents

Active Publication Date: 2021-03-09
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this antistatic coating is easy to fall off during the use of PMMA, and its antistatic performance will gradually decrease with the prolongation of the use time of PMMA products, and the permanent antistatic effect cannot be achieved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) 97.95 parts of MMA and 0.05 part of ABVN (initiator) and 2.00 parts of hydroxyethyl methacrylate (HEMA) were mixed uniformly in a 250mL flask;

[0032] (2) Place the flask in an oil bath at 80°C for prepolymerization, connect a spherical condenser and a thermometer (PID) to the flask to control the temperature, keep the system at 80°C for 20 minutes, and wait for a large number of bubbles to emerge from the flask About 10s, the prepolymerization is over, take the flask out and put it in an ice-water bath until the wall of the flask becomes cold, and degas the prepolymer by applying vacuum (650mmHg) to remove air bubbles and dissolved air;

[0033] (3) The commercially available glass plate was washed three times with ethanol and deionized water respectively, and dried, and then the glass plate was immersed in an acetone solution (100.00 g) containing 1.50 g of hexadecyltrimethoxysilane (HTEOS) for 10 s to make Its surface is hydrophobic. After pretreatment, dry at ...

Embodiment 2

[0036] (1) Mix 97.95 parts of MMA, 0.05 parts of ABVN and 5.00 parts of HEMA in a 250mL flask;

[0037] (2) Place the flask in an oil bath at 80°C for prepolymerization, connect a spherical condenser and a thermometer (PID) to the flask to control the temperature, keep the system at 80°C for 20 minutes, and wait for a large number of bubbles to emerge from the flask 10s, the prepolymerization is finished, the flask is taken out and placed in an ice-water bath until the flask wall becomes cold, and the prepolymer is degassed by applying a vacuum (650mmHg) to remove air bubbles and dissolved air;

[0038] (3) Wash the commercially available glass plate three times with ethanol and deionized water respectively, and dry it, then immerse the glass plate in an acetone solution (100.00 g) containing 1.50 g of hexadecyltrimethoxysilane (HTEOS) for 10 seconds to make it The surface is hydrophobic. After pretreatment, dry at room temperature for 60 minutes;

[0039] (4) Inject the pre...

Embodiment 3

[0041] (1) Mix 97.95 parts of MMA, 0.05 parts of ABVN and 10.00 parts of HEMA in a 250mL flask;

[0042](2) Place the flask in an oil bath at 80°C for prepolymerization, connect a spherical condenser and a thermometer (PID) to the flask to control the temperature, keep the system at 80°C for 20 minutes, and wait for a large number of bubbles to emerge from the flask 10s, the prepolymerization is finished, the flask is taken out and placed in an ice-water bath until the flask wall becomes cold, and the prepolymer is degassed by applying a vacuum (650mmHg) to remove air bubbles and dissolved air;

[0043] (3) Wash the commercially available glass plate three times with ethanol and deionized water respectively, and dry it, then immerse the glass plate in an acetone solution (100.00 g) containing 1.50 g of hexadecyltrimethoxysilane (HTEOS) for 10 seconds to make it The surface is hydrophobic. After pretreatment, dry at room temperature for 60 minutes;

[0044] (4) Inject the pre...

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Abstract

The invention relates to the field of polymer materials, in particular to a transparent antistatic PMMA and a preparation method thereof; the transparent antistatic PMMA is prepared from the following components: methyl methacrylate; initiator; intermediate monomer; sulfonate class monomer. The present invention selects an intermediate monomer, which has good compatibility with methyl methacrylate and sulfonate respectively. The sulfonate contains a hydrophilic group to increase the hygroscopicity of the surface of the product, and forms a layer of single molecule on the surface of the PMMA product. Conductive film, so that PMMA achieves antistatic effect. The preparation method of the present invention has simple operation steps and is easy to implement, and the surface resistance of PMMA obtained by polymerization is lower than 10 12 Ω, can achieve permanent antistatic effect, improve the antistatic performance of PMMA without affecting its transparency, and its light transmittance can reach more than 90%, which is equivalent to that of pure PMMA.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a transparent antistatic PMMA and a preparation method thereof. Background technique [0002] Polymethyl methacrylate (PMMA), also known as acrylic or plexiglass, is a transparent polymer material polymerized from methyl methacrylate monomer. It is widely used in aviation due to its good optical transparency. , construction, agriculture and other fields of lighting components. In addition, plexiglass also has good electrical insulation properties, making it widely used in instruments, instrument parts, auto parts and electrical insulation materials. However, the excellent electrical insulation of PMMA products also brings some problems. Once the surface is rubbed, it is easy to generate static electricity, resulting in the accumulation of static electricity, so that it is easy to absorb dust in the air or cause electric shock during product processing or final use, and even caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/20C08L33/12
CPCC08F220/14C08L33/12C08F220/20
Inventor 陈思王旭周波马猛施燕琴吴丹丹
Owner ZHEJIANG UNIV OF TECH
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