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Polypropylene material with characteristics of low dielectric constant, high strength and good weather resistance, and preparation method thereof

A technology of polypropylene material and low dielectric constant, which is applied in the field of polymers, can solve the problems of unimproved polypropylene dielectric properties and weather resistance, and achieve lower dielectric constant, excellent dielectric properties, and improved dielectric properties. performance effect

Active Publication Date: 2019-11-12
WANHUA CHEM GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN109206734A discloses a method for preparing a glass fiber reinforced polypropylene composite material. The invention has a simple production process, effectively enhances the rigidity of polypropylene, and makes the material have higher strength, but does not improve the dielectric properties of polypropylene. Weather resistance did not improve

Method used

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  • Polypropylene material with characteristics of low dielectric constant, high strength and good weather resistance, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Weigh 65 parts of isotactic homopolypropylene, 15 parts of polyetherimide, 2 parts of glass fiber, 3 parts of mica, 0.1 part of antioxidant 3,5-di-tert-butyl-4-hydroxybenzyl methyl ether, 0.05 1 part of Irgafos168 antioxidant, 2 parts of maleic anhydride modified chlorinated polypropylene, 0.4 part of CYD-6100, 1.0 part of BN hexagonal crystal, mixed in a high-speed mixer for 5 minutes, and the uniformly mixed material was placed in a twin-screw extruder Melt mixing. The melting and mixing temperature of the extruder is set as follows: the temperature of the conveying section is 170°C, the temperature of the plasticizing section is 190°C, the temperature of the metering section is 200°C; the screw speed is 200 rpm.

[0049] After the material was extruded, it was cooled and diced under water, kept at a constant temperature of 23°C for 16 hours, then made into a sample by an injection molding machine, kept at a constant temperature of 23°C, and placed at 50% humidity for...

Embodiment 2

[0051]Weigh 63 parts of isotactic homopolypropylene, 12 parts of polyetherimide, 5 parts of glass fiber, 0.15 part of 3,5-di-tert-butyl-4-hydroxybenzyl methyl ether antioxidant, 0.10 part of Irgafos168 antioxidant Agent, 3 parts of maleic anhydride modified chlorinated polypropylene, 0.6 parts of CYD-6100, 1.2 parts of BN hexagonal crystal, mixed in a high-speed mixer for 5 minutes, and melted and mixed the uniformly mixed material in a twin-screw extruder. The melting and mixing temperature of the extruder is set as follows: the temperature of the conveying section is 172°C, the temperature of the plasticizing section is 185°C, the temperature of the metering section is 205°C; the screw speed is 200 rpm.

[0052] After the material was extruded, it was cooled and diced under water, kept at a constant temperature of 23°C for 16 hours, then made into a sample by an injection molding machine, kept at a constant temperature of 23°C, and placed at 50% humidity for 48 hours for perf...

Embodiment 3

[0054] Weigh 70 parts of isotactic homopolypropylene, 10 parts of polyetherimide, 5 parts of glass fiber, 5 parts of mica, 0.15 parts of 3,5-di-tert-butyl-4-hydroxybenzyl methyl ether antioxidant, 0.05 1 part of Irgafos168 antioxidant, 4 parts of maleic anhydride modified chlorinated polypropylene, 0.8 part of CYD-6100, 0.8 part of BN hexagonal crystal, mixed in a high-speed mixer for 5 minutes, and the uniformly mixed material was placed in a twin-screw extruder Melt mix in medium. The melting and mixing temperature of the extruder is set as follows: the temperature of the conveying section is 170°C, the temperature of the plasticizing section is 188°C, the temperature of the metering section is 200°C; the screw speed is 200 rpm.

[0055] After the material was extruded, it was cooled and diced under water, kept at a constant temperature of 23°C for 16 hours, then made into a sample by an injection molding machine, kept at a constant temperature of 23°C, and placed at 50% hum...

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Abstract

The invention discloses a polypropylene material with characteristics of low dielectric constant, high strength and good weather resistance, and a preparation method thereof, wherein the polypropylenematerial is prepared from the following raw materials by weight: 60-70 parts of polypropylene, 10-30 parts of a modifier, 0-25 parts of an inorganic filler, 0.1-0.3 part of an antioxidant, 2-5 partsof a compatibilizer, and 0.6-1.2 part of a BN hexagonal crystal. The preparation method comprises: placing various components in a high-speed stirrer, uniformly stirring and mixing, carrying out meltmixing on the uniformly mixed material in a twin-screw extruder, extruding, and granulating to obtain the product. According to the present invention, the prepared modified PP material has characteristics of low dielectric constant, high strength and good weather resistance, can maintain good dielectric property, good mechanical property, good flame retardancy and good dimensional stability underharsh environments, and can be widely used for 5G machine materials, the insulation materials of electrical and electronic components, high-temperature connecting members and the like.

Description

Technical field: [0001] The invention relates to the technical field of polymers, in particular to a polypropylene material with low dielectric constant, high strength and good weather resistance and a preparation method thereof. Background technique: [0002] The 5G era is approaching, and the power loss of 5G electronic components, televisions and fax systems cannot be ignored, so low dielectric constant materials have attracted much attention. By reducing the dielectric constant of the dielectric material used in the integrated circuit, the leakage current of the integrated circuit can be reduced, the capacitive effect between the wires can be reduced, the heating of the integrated circuit can be reduced, and the use efficiency of electronic materials can be improved. [0003] Polypropylene material is a thermoplastic synthetic resin with excellent performance. Polypropylene has excellent high-frequency electrical properties and is almost not affected by environmental hum...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L79/08C08L51/06C08K13/04C08K7/14C08K7/00C08K3/38
CPCC08L23/12C08L2205/03C08L2205/08C08L2201/08C08K2003/385C08L79/08C08L51/06C08K13/04C08K7/14C08K7/00C08K3/38
Inventor 翟一鸣徐彦龙朱文俊李允升张起政秦中宇常林张宏科
Owner WANHUA CHEM GRP CO LTD