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Polycarbonate composite material and preparation method thereof

A polycarbonate and composite material technology, applied in the field of polymer materials, can solve the problems of acid resistance, high molecular chain rigidity, and poor solvent resistance, and achieve good market application value, simple preparation method, and good hydrolysis resistance.

Inactive Publication Date: 2012-06-13
深圳市欧力隆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has stable mechanical properties, dimensional stability, electrical properties and flame retardancy in a wide temperature range, and can be used for a long time at -60-120°C; has no obvious melting point, and is in a molten state at 220-230°C; molecular chain High rigidity, high viscosity of resin melt; small water absorption, small shrinkage, high dimensional accuracy, good dimensional stability, low air permeability of the film; self-extinguishing material; stable to light, but not resistant to ultraviolet light, good weather resistance ;Oil resistant, not resistant to acid, not resistant to strong alkali, oxidizing acid and amines, ketones, soluble in chlorinated hydrocarbons and aromatic solvents, easy to cause hydrolysis and cracking in water for a long time, the disadvantage is that due to poor fatigue resistance, it is easy to produce Stress cracking, poor solvent resistance, poor abrasion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh raw materials by weight percentage: PC resin 98.8%, dispersant 0.2%, hydrolysis-resistant agent AH210 0.1%, antioxidant 1076 0.3%, antioxidant 168 0.2%, lubricant EBS 0.4%.

[0031] Dry the PC resin in a blower dryer at a temperature of 110°C-130°C for 3-5 hours, add a dispersant and mix at high speed for 10 minutes, stop stirring, cool until the temperature drops to 30-35°C, and then add hydrolysis-resistant Agent, also mix at high speed for 10 minutes, then add antioxidant and processing aids and mix evenly at high speed. Through twin-screw extrusion and granulation, it can be cooled and granulated.

[0032] The granulator is a 35# twin-screw extruder, and the process parameters are: the temperature of the first zone is 130°C, the temperature of the second zone is 230°C, the temperature of the third zone is 235°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 240°C, and the temperature of the sixth zone is 245°C ℃, the temper...

Embodiment 2

[0034] Weigh raw materials by weight percentage: PC resin 99.15%, dispersant 0.1%, hydrolysis resistance agent AH210 0.05%, antioxidant 1076 0.1%, antioxidant 168 0.1%, lubricant EBS 0.5%.

[0035] Dry the PC resin in a blower dryer at a temperature of 110°C-130°C for 3-5 hours, add a dispersant and mix at high speed for 10 minutes, stop stirring, cool until the temperature drops to 30-35°C, and then add hydrolysis-resistant Agent, also mix at high speed for 10 minutes, then add antioxidant and processing aids and mix evenly at high speed. Through twin-screw extrusion and granulation, it can be cooled and granulated.

[0036] The granulator is a 35# twin-screw extruder, and the process parameters are: the temperature of the first zone is 110°C, the temperature of the second zone is 225°C, the temperature of the third zone is 230°C, the temperature of the fourth zone is 235°C, the temperature of the fifth zone is 235°C, and the temperature of the sixth zone is 240°C ℃, the tem...

Embodiment 3

[0038] Weigh raw materials by weight percentage: PC resin 99.22%, dispersant 0.1%, hydrolysis-resistant agent AH210 0.08%, antioxidant 1076 0.2%, antioxidant 168 0.2%, lubricant EBS 0.2%.

[0039] Dry the PC resin in a blower dryer at a temperature of 110°C-130°C for 3-5 hours, add a dispersant and mix at high speed for 10 minutes, stop stirring, cool until the temperature drops to 30-35°C, and then add hydrolysis-resistant Agent, also mix at high speed for 10 minutes, then add antioxidant and processing aids and mix evenly at high speed. Through twin-screw extrusion and granulation, it can be cooled and granulated.

[0040] The granulator is a 35# twin-screw extruder, and the process parameters are: the temperature of the first zone is 120°C, the temperature of the second zone is 220°C, the temperature of the third zone is 230°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 230°C, and the temperature of the sixth zone is 235°C ℃, the temp...

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PUM

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Abstract

The invention discloses a polycarbonate composite material and a preparation method thereof. The polycarbonate composite material comprises, by weight, 98.7 to 99.3% of PC resin, 0.1 to 0.2% of a dispersing agent, 0.05 to 0.1% of a hydrolysis resistant agent, 0.2 to 0.5% of an anti-oxidant and 0.2 to 0.5% of a processing auxiliary agent. The polycarbonate composite material provided in the invention has high transparency and good hydrolysis resistance and is applicable in high-temperature high-humidity environments. The preparation method in the invention is simple, has an obvious improving effect, costs litter and has a good market application value.

Description

[technical field] [0001] The invention relates to the field of polymer materials, in particular to a polycarbonate composite material and a preparation method thereof. [Background technique] [0002] Bisphenol A aromatic polycarbonate (PC) is a colorless and transparent amorphous thermoplastic material. Chemical name: 2,2'-bis(4-hydroxyphenyl)propane polycarbonate. It has stable mechanical properties, dimensional stability, electrical properties and flame retardancy in a wide temperature range, and can be used for a long time at -60-120°C; has no obvious melting point, and is in a molten state at 220-230°C; molecular chain High rigidity, high viscosity of resin melt; small water absorption, small shrinkage, high dimensional accuracy, good dimensional stability, low air permeability of the film; self-extinguishing material; stable to light, but not resistant to ultraviolet light, good weather resistance ;Oil resistant, not resistant to acid, not resistant to strong alkali, ...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L63/00C08K5/01C08K5/20B29C47/92B29B9/06B29C48/92
Inventor 徐东徐永付天英
Owner 深圳市欧力隆科技有限公司
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