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

PC/PET alloy and manufacture method thereof

A technology of alloy and weight ratio, which is applied in the field of PC/PET alloy and its preparation, can solve the problems of low impact strength and poor heat resistance, and achieve the effects of low cost, excellent physical and mechanical properties, and simple preparation process

Inactive Publication Date: 2007-10-17
SHENZHEN KEJU NEW MATERIAL
View PDF0 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PET used alone has disadvantages such as poor heat resistance and low impact strength.

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

[0032] The weight ratio of PC is 85.1% (the following are all weight ratios), PET 5%, 1010 / 168 0.2 / 0.2%, toughening agent C223A 8%, compatibilizer 1%, other 0.5%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 250°C; zone 2: 255°C; zone 3: 255°C; zone 4: 250°C; head: 245°C; residence time 2-3min. The pressure is 15MPa.

Embodiment 2

[0034] The weight ratio of PC is 79.6% (the following are all weight ratios), PET10%, 1010 / 168 0.2 / 0.2%, toughening agent C223A8%, compatibilizer 1.5%, and other 0.5%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 250°C; zone 2: 255°C; zone 3: 255°C; zone 4: 250°C; head: 245°C; residence time 2-3min. The pressure is 15MPa.

Embodiment 3

[0036] The weight ratio of PC is 76.6% (the following are all weight ratios), PET13%, 1010 / 168 0.2 / 0.2%, toughening agent C223A8%, compatibilizer 1.5%, and other 0.5%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 250°C; zone 2: 255°C; zone 3: 255°C; zone 4: 250°C; head: 245°C; residence time 2-3min. The pressure is 15MPa.

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a PC / PET alloy and its producing method with a composite weight ratio (%): PC 65-87%; PET5-20%; elasticizer 6-10%; compatilizer 1-3%; antioxidant 0.2-0.6%; other assistant agents 0.1-2%. The inventive material has a high impacting strength, a high module, a high rigidity, a high surface gloss and a low density, which improves the PC resistance to solvent, abrasion resistance, resistance to stress cracking and processing fluidity. The plastic producing method contains following steps: firstly mixing the material according to above proportion, then entering into the plastic extruder at 245-280 DEG C, prilling, getting PC / PET alloy.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PC / PET alloy and a preparation method thereof. Background technique [0002] PC (polycarbonate) is a kind of polymer containing carbonate in the molecular chain. It has particularly good impact strength, thermal stability and gloss. It is one of the five general-purpose engineering plastics. Its output and consumption are second only to Nylon engineering plastics ranked second. However, polycarbonate has the disadvantages of high melt viscosity, difficult molding process and poor solvent resistance. [0003] PET (polyethylene terephthalate) is a semi-crystalline material with very good chemical stability, mechanical strength, electrical insulation properties and thermal stability, especially excellent oil resistance and solvent resistance. PET used alone has disadvantages such as poor heat resistance and low impact strength. Contents of the invention [0004] The...

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): C08L69/00C08K5/524B29C47/40B29C47/92B29B9/12C08L67/03B29C48/92B29C48/40
CPCB29C2947/92704B29C48/92B29C2948/92704B29C48/40
Inventor 徐东贺永李红敏
Owner SHENZHEN KEJU NEW MATERIAL
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