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A kind of transparent permanent antistatic PMMA material and its preparation method and application

An antistatic agent and preparation process technology, which is applied in the field of transparent permanent antistatic PMMA material and its preparation, can solve the problems of large influence on PMMA mechanical properties, unsuitable scale application, and difficult introduction, and achieve excellent antistatic performance and low cost. Low, excellent effect of transparency

Active Publication Date: 2021-03-16
联泓(江苏)新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has modified the molecular structure of PMMA, which has a great influence on the mechanical properties of PMMA, and it is difficult to introduce during polymerization, the cost is high, and it is also not suitable for large-scale applications.

Method used

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  • A kind of transparent permanent antistatic PMMA material and its preparation method and application
  • A kind of transparent permanent antistatic PMMA material and its preparation method and application
  • A kind of transparent permanent antistatic PMMA material and its preparation method and application

Examples

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Effect test

preparation example Construction

[0042] The antistatic agent used in Examples 1-8 was prepared by referring to the synthesis method in Patent No. 201610168598.4. The synthesis method comprises the steps of: adding deionized water, acrylate monomer A and polyether monomer B to a glass reactor equipped with a thermometer, a stirrer, a dropping funnel and a reflux condenser, and then heating it to 65°C, Subsequently, a 40% mixed aqueous solution of acrylic acid, sodium methallylsulfonate, and sodium hypophosphite, and a 37.2% aqueous solution of ammonium persulfate were added dropwise over 3 hours and 3.5 hours, respectively. Then keep the temperature at 65°C until the end of the polymerization reaction, then cool the resulting reaction mixture to no more than 50°C, then neutralize it with 30% aqueous sodium hydroxide solution to adjust the pH to 5-7, and obtain the aqueous copolymer solution by spraying After drying, an antistatic agent product is obtained. The product name of antistatic agent, acrylate monome...

Embodiment 1

[0047] Add PMMA, antistatic agent, stabilizer and antioxidant to a high-speed mixer and mix thoroughly, and then transfer it to a twin-screw extruder with a length-to-diameter ratio of 48 and a total of 12 barrels for melt extrusion and granulation , the temperature of the second barrel is 185°C, the temperature of the third barrel is 230°C, the temperature of the fourth barrel is 220°C, the temperature of the fifth barrel is 220°C, and the temperature of the sixth barrel is 210°C , the seventh barrel temperature is 210°C, the eighth barrel temperature is 205°C, the ninth barrel temperature is 205°C, the tenth barrel temperature is 205°C, and the eleventh barrel temperature is 205°C ℃, the barrel temperature in the twelfth section is 205 ℃, the head temperature is 205 ℃, the feeding frequency is 40 Hz, the host speed is 400 rpm, and the vacuum is pumped to a vacuum degree of -0.05MPa. A transparent permanent antistatic PMMA material is obtained.

[0048] The parts by weight o...

Embodiment 2

[0051] PMMA, antistatic agent and antioxidant are added into a high-speed mixer and mixed thoroughly, and then transferred to a twin-screw extruder with a length-to-diameter ratio of 48 and a total of 12 barrels for melt extrusion and granulation. The temperature of the first barrel is 180°C, the temperature of the third barrel is 230°C, the temperature of the fourth barrel is 220°C, the temperature of the fifth barrel is 220°C, the temperature of the sixth barrel is 210°C, and the temperature of the seventh barrel is 210°C. The temperature of the barrel section is 210°C, the barrel temperature of the eighth section is 205°C, the barrel temperature of the ninth section is 205°C, the barrel temperature of the tenth section is 205°C, and the barrel temperature of the eleventh section is 205°C. The temperature of the twelve-section barrel is 205°C, the temperature of the machine head is 205°C, the feeding frequency is 40 Hz, the speed of the main engine is 400 rpm, and the vacuum ...

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Abstract

The invention belongs to the technical field of macromolecule materials, and discloses a transparent permanent antistatic PMMA material and a preparation method and application thereof. The material is prepared from, by weight, 50-110 parts of PMMA, 2-45 parts of an antistatic agent, 0-8 parts of a flexibilizer, 0-1 part of a stabilizer and 0.1-1 part of an antioxygen. The prepared transparent permanent antistatic PMMA material has the advantages that preparation is simple, forming and processing performance is good, and the material can be adopted for preparing dust-proof and antistatic workpieces or packing materials through processing forming modes of injection molding, curtain coating and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a transparent permanent antistatic PMMA material and a preparation method and application thereof. Background technique [0002] Poly (methyl methacrylate) is referred to as PMMA for short, commonly known as plexiglass, and in the United States, Britain, Germany, Japan and other countries, it is called acrylic sheet, also known as acrylic sheet. The solid molding obtained by bulk polymerization is commonly called PMMA. PMMA is flammable, has excellent transparency, high strength, certain heat and cold resistance, corrosion resistance, and good insulation. It is widely used in instruments, instrument parts, auto parts and electrical insulation materials. 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/12C08L87/00C08G81/00
CPCC08G81/00C08L33/12C08L2201/04C08L2201/10C08L2205/03C08L87/005
Inventor 吴集钱李成浪牛峰李方
Owner 联泓(江苏)新材料研究院有限公司
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