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Halogen-free flame-retardant water-resistant weather-resistant PC composite material and application thereof in electrical field

A composite material and compound technology, applied in the field of polycarbonate, can solve the problems of poor notched impact and low temperature toughness, low flame retardant performance, poor processing performance, etc., to improve strength and toughness, improve impact strength, improve Compatibility effect

Inactive Publication Date: 2019-12-20
东莞市立晶塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PC also has some defects, such as poor processing performance, easy stress cracking, poor notch impact and low temperature toughness, low flame retardancy (oxygen index is 21% to 24%), poor fluidity, poor hydrolysis resistance, and weather resistance. Poor performance, which greatly limits its application

Method used

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  • Halogen-free flame-retardant water-resistant weather-resistant PC composite material and application thereof in electrical field
  • Halogen-free flame-retardant water-resistant weather-resistant PC composite material and application thereof in electrical field
  • Halogen-free flame-retardant water-resistant weather-resistant PC composite material and application thereof in electrical field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A halogen-free flame-retardant, water-resistant and weather-resistant PC composite material, comprising the following raw materials in parts by weight:

[0032]

[0033] The composite reinforcement is prepared by dispersing and mixing 25 parts of glass fiber, 20 parts of nanocellulose and 20 parts of PC

[0034] Wherein, the preparation method of the composite reinforcement includes the following steps;

[0035] A. Add 25 parts of glass fibers and 20 parts of nanocellulose in 1000 parts by weight of water, then carry out ultrasonic dispersion for 3 hours, centrifugally wash and freeze-dry to obtain the first mixture;

[0036] B. Take 100 parts by weight of an organic solvent to dissolve 20 parts by weight of PC to form a mixed solution, add the first mixed material to the mixed solution, and ultrasonically disperse for 1.5 hours to obtain a suspension;

[0037] C. Spray drying the suspension to obtain the composite reinforcement.

[0038] Wherein, the glass fiber h...

Embodiment 2

[0050] A halogen-free flame-retardant, water-resistant and weather-resistant PC composite material, comprising the following raw materials in parts by weight:

[0051]

[0052] The composite reinforcement is prepared by dispersing and mixing 20 parts of glass fiber, 15 parts of nanocellulose and 20 parts of PC

[0053] Wherein, the preparation method of the composite reinforcement includes the following steps;

[0054] A. Add 20 parts of glass fibers and 15 parts of nanocellulose in 1000 parts by weight of water, then carry out ultrasonic dispersion for 2 hours, centrifugally wash and freeze-dry to obtain the first mixture;

[0055] B. Take 100 parts by weight of an organic solvent to dissolve 20 parts by weight of PC to form a mixed solution, add the first mixed material to the mixed solution, and ultrasonically disperse for 1 hour to obtain a suspension;

[0056]C. Spray drying the suspension to obtain the composite reinforcement.

[0057] Wherein, the glass fiber has a...

Embodiment 3

[0069] A halogen-free flame-retardant, water-resistant and weather-resistant PC composite material, comprising the following raw materials in parts by weight:

[0070]

[0071]

[0072] The composite reinforcement is prepared by dispersing and mixing 30 parts of glass fiber, 25 parts of nanocellulose and 20 parts of PC

[0073] Wherein, the preparation method of the composite reinforcement includes the following steps;

[0074] A. Add 25 parts of glass fibers and 20 parts of nanocellulose in 1000 parts by weight of water, then carry out ultrasonic dispersion for 4 hours, centrifugally wash and freeze-dry to obtain the first mixture;

[0075] B. Take 100 parts by weight of an organic solvent to dissolve 20 parts by weight of PC to form a mixed solution, add the first mixed material to the mixed solution, and ultrasonically disperse for 2 hours to obtain a suspension;

[0076] C. Spray drying the suspension to obtain the composite reinforcement.

[0077] Wherein, the gla...

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Abstract

The invention relates to the technical field of polycarbonate, and in particular, relates to a halogen-free flame-retardant water-resistant weather-resistant PC composite material and an application thereof in the electrical field. The PC composite material comprises PC, a composite reinforcement body, a halogen-free flame retardant, a hydrolysis-resistant agent, a light stabilizer, an antioxidantand a lubricant, wherein the composite reinforcement body is prepared from 20 to 30 parts of glass fibers, 15 to 25 parts of nano cellulose and 20 parts of PC. The halogen-free flame retardant, the hydrolysis-resistant agent, the light stabilizer and the antioxidant are added into PC, so the PC composite material has the characteristics of halogen-free flame retardancy, hydrolysis resistance andweather resistance; the strength and toughness of PC can be improved by adding the composite reinforcement body; the PC composite material can be widely used in the electrical field, such as manufacturing of injection molding parts of plugs and sockets, by utilizing the excellent dielectric property of PC.

Description

technical field [0001] The invention relates to the technical field of polycarbonate, in particular to a halogen-free flame-retardant, water-resistant and weather-resistant PC composite material and its application in the electrical field. Background technique [0002] Polycarbonate (PC) is a thermoplastic engineering plastic with excellent comprehensive properties. It has outstanding impact resistance, creep resistance and dimensional stability. It can maintain high mechanical strength in a high temperature range and is non-toxic. , with excellent dielectric properties, is the engineering plastic with the fastest growth and the largest production capacity in recent years. However, PC also has some defects, such as poor processing performance, easy stress cracking, poor notch impact and low temperature toughness, low flame retardancy (oxygen index is 21% to 24%), poor fluidity, poor hydrolysis resistance, and weather resistance. poor performance, which greatly limits its ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L1/04C08K13/04C08K7/14C08K3/32C08K5/1515C08K5/132C08K5/134C08K5/526C08K3/02C08K3/22
CPCC08K2003/026C08K2003/2224C08K2003/2227C08K2003/323C08L69/00C08L2201/02C08L2201/08C08L2201/22C08L1/04C08K13/04C08K7/14C08K3/32C08K5/1515C08K5/132C08K5/1345C08K5/526C08K3/02C08K3/22
Inventor 高天平
Owner 东莞市立晶塑胶有限公司
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