Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polycarbonate composite material with high rigidity and preparation method thereof

A technology of polycarbonate and composite materials, which is applied in the field of high-rigidity polycarbonate composite materials and its preparation, can solve the problems of material mechanical strength decline, material high-temperature resistance performance decline, complex production, etc., and achieve high rigidity, fluidity, Excellent low warpage performance and good processing fluidity

Active Publication Date: 2013-11-27
DONGGUAN HONOUR E P
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of PBT will narrow the processing temperature range of the material, and the production is complicated, the formula raw materials are many, and the preliminary process is complicated; the introduction of kaolin will reduce the mechanical strength of the material and the surface gloss. Decrease the high temperature resistance of the material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Weigh 60 parts of polycarbonate, 0.3 parts of antioxidant 1076 and 168 by weight 1:1 mixed antioxidant, 0.4 part of PTFE, 2 parts of pentaerythritol stearate lubricant, 3 parts of phosphorus inhibitor Burning agent and 3 parts of styrene-maleic anhydride copolymer;

[0050] (2) Put the above components into the mixer in proportion and mix for 20 minutes;

[0051] (3) Put the mixed raw materials in step (2) into a twin-screw extruder, weigh 40 parts of glass fiber side feed, melt extrude, and granulate;

[0052] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-250°C, the temperature of temperature control zone 3-4 is 260-280°C, and the temperature of temperature control zone 5-6 is 260°C ~270°C, the temperature of temperature control zone 7-8 is 240-260°C, and the temperature of temperature control zone 9-10 is 250-260°C.

Embodiment 2

[0054] (1) Weigh 40 parts of polycarbonate, 0.6 parts of antioxidant 412S mixed with 168 by weight 1:1 mixed antioxidant, 0.6 parts of PTFE, 5 parts of ethylene wax, 5 parts of silicone flame retardant and 5 parts of Styrene-maleic anhydride copolymer;

[0055] (2) Put the above components into the mixer in proportion and mix for 15 minutes;

[0056] (3) Put the mixed raw materials in step (2) into a twin-screw extruder, weigh 60 parts of glass fiber and side feed, melt extrude, and granulate.

[0057] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-250°C, the temperature of temperature control zone 3-4 is 260-280°C, and the temperature of temperature control zone 5-6 is 260°C ~270°C, the temperature of temperature control zone 7-8 is 240-260°C, and the temperature of temperature control zone 9-10 is 250-260°C.

Embodiment 3

[0059] (1) Weigh 50 parts of polycarbonate, 0.5 parts of antioxidants 1076 and 168 mixed with 1:2 by weight of mixed antioxidants, 0.5 parts of MMA-coated modified PTFE, 4 parts of silicone oil, 4 parts of phosphorus and silicone A mixed flame retardant mixed in any proportion and 4 parts of POE grafted maleic anhydride copolymer;

[0060] (2) Put the above components into the mixer in proportion and mix for 10 minutes;

[0061] (3) Put the mixed raw materials in step (2) into a twin-screw extruder, weigh 50 parts of glass fiber side feed, melt extrude, and granulate;

[0062] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-250°C, the temperature of temperature control zone 3-4 is 260-280°C, and the temperature of temperature control zone 5-6 is 260°C ~270°C, the temperature of temperature control zone 7-8 is 240-260°C, and the temperature of temperature control zone 9-10 is 250-26...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-rigidity polycarbonate composite material and a preparation method thereof, relating to the field of modified polycarbonate resin. The composite material is prepared from the following components in parts by mass: 40-70 parts of polycarbonate, 30-60 parts of glass fiber, 0.08-0.6 part of antioxidant, 0.1-0.6 part of anti-drip agent, 0.5-5 parts of lubricant, 0.08-5 parts of flame retardant and 1-5 parts of solvent. The preparation method of the composite material comprises the following steps: (1) weighing the polycarbonate, antioxidant, anti-drip agent, lubricant, flame retardant and solvent; (2) proportionally putting the components into a mixer, and mixing for 10-30 minutes; and (3) putting the raw materials mixed in the step (2) in a double screw extruder, weighing the glass fiber, performing side feeding, performing melt extrusion, and granulating. The composite material prepared by the method has high rigidity, super toughness, low warpage and halogen-free flame retardancy.

Description

technical field [0001] The invention relates to the field of modified polycarbonate resins, in particular to a high-rigidity polycarbonate composite material and a preparation method thereof. Background technique [0002] Polycarbonate has been widely used in many fields due to its good mechanical strength. At present, the polycarbonate reinforcement materials sold on the market are mainly two kinds of glass fiber and carbon fiber. The application of polycarbonate modified with carbon fiber is limited due to its high price. It is more widely used to add glass fiber modified reinforced materials. Due to the poor compatibility between glass fiber and polycarbonate, glass fiber is easy to float out of the surface of the material; the higher the glass fiber content, the worse the processing performance of the material, the molding process is difficult, the material has poor toughness, and is prone to warping. [0003] Modified polycarbonate with high rigidity, super toughness...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K13/04C08K7/14B29C47/92B29C48/92
CPCB29B7/90B29B9/14B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895C08G77/448C09K21/00
Inventor 马述伟李红刚曹建伟
Owner DONGGUAN HONOUR E P
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com