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Good-appearance low-carbon environment-friendly fiber-reinforced PC/PLA composite material and preparation method thereof

A low-carbon, environmentally friendly, composite material technology, applied in the field of good appearance, low-carbon and environmentally friendly glass fiber reinforced PC/PLA composite materials and its preparation, can solve the problem of affecting people's living environment and ecological environment, the difficulty of recycling glass fiber reinforced PC, and the recycling of recycled materials. Problems such as large performance attenuation, to achieve the effect of maintaining long-term stability, promoting development and application, and improving processing plasticity

Pending Publication Date: 2022-05-20
合肥市皖能塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wide application of glass-reinforced PC has also brought about the problem of recycling waste plastics. On the one hand, it is difficult to recycle glass fiber-reinforced PC. The flood of garbage has seriously affected people's living environment and ecological environment

Method used

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  • Good-appearance low-carbon environment-friendly fiber-reinforced PC/PLA composite material and preparation method thereof
  • Good-appearance low-carbon environment-friendly fiber-reinforced PC/PLA composite material and preparation method thereof
  • Good-appearance low-carbon environment-friendly fiber-reinforced PC/PLA composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]Dry PC and PC recycled materials in a dehumidification dryer at 100°C for 4-6 hours, and dry PLA raw materials in a dehumidification dryer at 70°C for 4-6 hours to ensure that the moisture content is within 0.08%.

[0044] After drying, 30 parts of PC, 20 parts of PLA, 20 parts of recycled PC, 5 parts of EM500, 4 parts of PBAT-MAH, 10 parts of PMMA, 0.3 parts of antioxidant, 0.5 parts of lubricant, and 0.2 parts of transesterification inhibitor , 1 part of anti-hydrolysis agent, 3 parts of plasticizer, and 0.3 part of chain extender were mixed in a high-speed mixer at 80°C for 10 minutes, and then added to a twin-screw extruder with a length-to-diameter ratio of 40:1 from the main feeding port. At the same time, 10 parts of chopped glass fibers are added from the side feed port, and then granulated after being melted and extruded by a twin-screw extruder to obtain a degradable biocomposite material, wherein the processing temperature of the twin-screw extruder is 160°C ℃...

Embodiment 2

[0046] Place PC and PC recycled materials in a dehumidification dryer at 100°C for drying, and place PLA raw materials in a dehumidification dryer for drying at 70°C to ensure that their moisture content is within 0.08%.

[0047] 15 parts of dried PC, 40 parts of PLA, 8 parts of recycled PC and 10 parts of EM500 agent, 8 parts of PBAT-MAH, 12 parts of PMMA, 0.3 parts of antioxidant, 0.5 parts of lubricant, 0.5 parts of transesterification inhibitor , 2 parts of anti-hydrolysis agent, 5 parts of plasticizer, and 0.5 part of chain extender are mixed in a high-speed mixer at 80°C for 10 minutes, and then added to a twin-screw extruder with a length-to-diameter ratio of 40:1 from the main feeding port. At the same time, 10 parts of chopped glass fibers are added from the side feed port, and then granulated after being melted and extruded by a twin-screw extruder to obtain a degradable biocomposite material, wherein the processing temperature of the twin-screw extruder is 160°C ℃, ...

Embodiment 3

[0049] Place PC and PC recycled materials in a dehumidification dryer at 100°C for drying, and place PLA raw materials in a dehumidification dryer for drying at 70°C to ensure that their moisture content is within 0.08%.

[0050] 26 parts of dried PC, 30 parts of PLA, 5 parts of recycled PC and 8 parts of EM500, 5 parts of PBAT-MAH, 10 parts of PMMA, 0.3 parts of antioxidant, 0.4 parts of lubricant, 0.4 parts of transesterification inhibitor , 1.5 parts of anti-hydrolysis agent, 4 parts of plasticizer, and 0.4 parts of chain extender were mixed in a high-speed mixer at 80°C for 10 minutes, and then added into a twin-screw extruder with a length-to-diameter ratio of 40:1 from the main feeding port. At the same time, 10 parts of chopped glass fibers are added from the side feed port, and then granulated after being melted and extruded by a twin-screw extruder to obtain a degradable biocomposite material, wherein the processing temperature of the twin-screw extruder is 160°C ℃, Z...

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Abstract

The invention discloses a good-appearance low-carbon environment-friendly glass fiber reinforced PC / PLA composite material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 15 to 30 parts of polycarbonate, 20 to 30 parts of polylactic acid, 5 to 10 parts of a flexibilizer, 15 to 18 parts of a compatilizer, 10 to 15 parts of chopped glass fibers, 10 to 20 parts of a polycarbonate reclaimed material, 1 to 2 parts of an anti-hydrolysis agent, 0.1 to 0.3 part of an antioxidant, 0.5 to 1 part of a lubricant, 0.3 to 0.5 part of a chain extender, 0.2 to 0.5 part of an ester exchange inhibitor and 3 to 5 parts of a plasticizer. The composite material prepared by the invention has excellent processing stability, good appearance and strength, and has no defects such as material patterns, white lines, flash, carbonization and the like, and surface floating fibers and luster are obviously improved; the carbon emission of traditional plastics can be reduced, meanwhile, the low-carbon plastic has good strength, appearance and molding processing performance, and development and application of low-carbon materials are promoted.

Description

technical field [0001] The invention belongs to the technical field of low-carbon and environment-friendly polymer composite materials, and in particular relates to a low-carbon and environment-friendly glass fiber reinforced PC / PLA composite material with good appearance and a preparation method thereof. Background technique [0002] Glass fiber reinforced PC is widely used in home appliances, electronic appliances, communications and other fields because of its excellent strength, high modulus, heat resistance and dimensional stability. Such as TV, display frame and bracket; notebook computer frame and panel; air conditioner air guide strip and bracket, electric meter casing, etc. The wide application of glass-reinforced PC has also brought about the problem of recycling waste plastics. On the one hand, it is difficult to recycle glass fiber-reinforced PC. The flood of garbage has seriously affected people's living environment and ecological environment. [0003] In orde...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/04C08L33/12C08L51/04C08L51/08C08L71/02C08K5/103C08K7/14C08J5/04
CPCC08J5/043C08J2369/00C08J2367/04C08J2469/00C08J2467/04C08J2433/12C08J2451/04C08J2451/08C08J2471/02C08K5/103C08K7/14
Inventor 凌从玲王雷徐敬楠
Owner 合肥市皖能塑业有限公司
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