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High-impact antistatic PMMA (polymethyl methacrylate) composition as well as preparation method and application thereof

A composition and antistatic technology, which is applied in the field of high impact and antistatic PMMA composition and its preparation, can solve the problems of poor antistatic performance and poor toughness, achieve excellent toughness, excellent antistatic performance, avoid rigidity and Transparency drop effect

Pending Publication Date: 2022-04-22
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention provides a high impact and antistatic PMMA composition for overcoming the defects of poor antistatic performance and poor toughness described in the above-mentioned prior art

Method used

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  • High-impact antistatic PMMA (polymethyl methacrylate) composition as well as preparation method and application thereof
  • High-impact antistatic PMMA (polymethyl methacrylate) composition as well as preparation method and application thereof
  • High-impact antistatic PMMA (polymethyl methacrylate) composition as well as preparation method and application thereof

Examples

Experimental program
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Embodiment 1～17

[0055] Embodiments 1 to 17 provide a PMMA composition respectively, the component contents are shown in Table 1, and the preparation method is as follows:

[0056] After mixing each component according to Table 1, add to a twin-screw extruder, and extrude and granulate through melt mixing to obtain a PMMA composition;

[0057]The temperature of the first to second zone of the twin-screw extruder is 120-170°C, the temperature of the third to fifth zone is 160-180°C, and the temperature of the sixth to tenth zone is 170-190°C.

[0058] The component content (parts by weight) of the PMMA composition of table 1 embodiment 1~17

[0059]

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PUM

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Abstract

The invention discloses a high-impact antistatic PMMA (polymethyl methacrylate) composition as well as a preparation method and application thereof. The PMMA composition comprises the following components in parts by weight: 100 parts of PMMA, 5-60 parts of SAN (Styrene Acrylonitrile), 10-40 parts of an antistatic agent, 0.3-2 parts of an antioxidant and 1-2 parts of a lubricant, the antistatic agent is one or more of a polyamide-polyether block copolymer, a polyolefin-polyether block copolymer or a polyacrylate-polyether block copolymer; the weight-average molecular weight of the SAN is 10,000-25,000, and the content of acrylonitrile in the SAN is 10wt.%-20wt.%. The antistatic agent brings excellent antistatic performance to the PMMA composition, and the SAN enables the PMMA composition to have excellent toughness. The surface resistivity of the PMMA composition is less than or equal to 4.5 * 10 < 9 > omega, the light transmittance is more than or equal to 80%, and the notch impact strength is more than or equal to 2.8 KJ / m < 2 >.

Description

technical field [0001] The invention relates to the technical field of polymer material modification, and more specifically, relates to a PMMA composition with high impact resistance and antistatic properties, a preparation method and application thereof. Background technique [0002] Polymethyl methacrylate (PMMA), commonly known as acrylic or plexiglass, has excellent weather resistance, rigidity, and transparency. The light transmittance of PMMA can reach more than 92%. It can be used for security, packaging, advertising, identification, bathroom, Aviation, electronics, automobiles and many other fields. [0003] PMMA itself is brittle, with high rigidity and poor toughness. PMMA parts are easily broken under external force, which greatly limits the application field of PMMA. In addition, as a polymer material, PMMA has a high surface resistance and is an insulating material. PMMA materials are easy to rub against each other during transportation and storage, resulting ...

Claims

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Application Information

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IPC IPC(8): C08L33/12C08L25/12C08L71/00C08L53/00
CPCC08L33/12C08L2201/04C08L25/12C08L71/00C08L53/00
Inventor 黄宝奎陈平绪叶南飚李玉虎林士文刘学亮付锦锋杨霄云
Owner KINGFA SCI & TECH CO LTD
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