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 th

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
Comparison scheme
Effect test

Example

[0054] Example 1 to 17

[0055] Examples 1 to 17 provide a PMMA composition, the component content is shown in Table 1, the preparation method is as follows:

[0056] After mixing the components according to Table 1, they are added to the twin screw extruder, and the PMMA composition is obtained by melting and mixing and extruding granulation;

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

[0058] Table 1 Composition content of PMMA composition of Examples 1 to 17 (by weight)

[0059]

Example

[0060] The proportion is 1 to 7

[0061] To provide a PMMA composition for a ratio of 1 to 7, the component content is shown in Table 2, the preparation method is the same as the embodiment.

[0062] Table 2 Component content (by weight) of PMMA composition with a proportion of 1 to 7

[0063]

[0064] Performance testing

[0065] The above embodiment and the performance test of the PMMA composition prepared in proportion, the specific method is as follows:

[0066] Surface resistivity: the PMMA composition is injection molded into a 100×100mm square plate, the test voltage is 100V, and the test is carried out in accordance with IEC60093-1980 standards;

[0067] Light transmittance: the PMMA composition is injection molded into a 2.0mm thickness square plate, tested according to GB / T2410-2008 standards, and the test light is visible;

[0068] Notched impact strength: tested according to ISO 180-2000 standard;

[0069] The test results of Example 1 to 17 are shown in Table 3, and...

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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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