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

High-toughness and high-fluidity PC (polycarbonate) composition as well as preparation method and application thereof

A technology of high fluidity and composition, applied in the field of engineering plastics, can solve the problems of poor transparency, processability and toughness, and achieve the effects of good toughness, improved compatibility and low visible light transmittance

Pending Publication Date: 2022-03-25
KINGFA SCI & TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a PC composition with high toughness and high fluidity, including PC, GPSS and styrene-butadiene copolymerization, in order to overcome the defects of processability, toughness, and poor transparency described in the above-mentioned prior art. matter (SBC)

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-toughness and high-fluidity PC (polycarbonate) composition as well as preparation method and application thereof
  • High-toughness and high-fluidity PC (polycarbonate) composition as well as preparation method and application thereof
  • High-toughness and high-fluidity PC (polycarbonate) composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～18

[0050] The component contents of the PC compositions of Examples 1-18 are shown in Table 1, and the preparation method is as follows:

[0051] After mixing the components according to Table 1, add them to the extruder, melt and mix, extrude and granulate to obtain the PC composition;

[0052] The extruder is a twin-screw extruder, the extrusion temperature is 220-300°C, the length-to-diameter ratio of the screw is 44:1, and the screw speed is 200-1000r / min.

[0053] Table 1 Component content (parts by weight) of the PC composition of Examples 1-18

[0054]

[0055]

Embodiment 18

[0073] Example 18 is a PC composition that does not contain organic toner. It can be seen that its visible light transmittance is 88%, and its transparency is good. It is suitable for use as a resin matrix for infrared-transmitting materials.

[0074] Table 4 Test results of comparative examples 1 to 6

[0075]

[0076] According to the test results in Table 4, in Comparative Example 1, without GPPS, the melt flow rate of the PC composition was only 8.1 g / 10 min, indicating that its fluidity was poor and processing difficulty was high. In Comparative Example 2, although a part of GPPS was added, the content of GPPS was too small, which limited the improvement of the processability of the PC composition.

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
The melt flow rateaaaaaaaaaa
The melt flow rateaaaaaaaaaa
The melt flow rateaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-toughness and high-fluidity PC (polycarbonate) composition as well as a preparation method and application thereof. The high-toughness and high-fluidity PC composition is prepared from the following components in parts by weight: 100 parts of PC, 25 to 50 parts of GPPS, 25 to 50 parts of SBC, 2 to 10 parts of compatilizer and 0 to 2 parts of other auxiliary agents, the mass ratio of the styrene comonomer to the butadiene comonomer in the SBC is (1.5-2.5): 1. The PC resin matrix, the SBC resin matrix and the GPPS resin matrix are blended, a formed ternary alloy system has good transparency, and low visible light transmittance and high infrared light transmittance can be achieved after the organic toner is added; and the introduction of the SBC effectively improves the compatibility among the system components and the toughness of the PC composition, so that the PC composition has good processability and toughness.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a PC composition with high toughness and high fluidity, a preparation method and application thereof. Background technique [0002] Polycarbonate (PC) is widely used in household appliances and other fields due to its high strength, high toughness, and high transparency. However, the high viscosity and poor fluidity of PC make it difficult to process PC resin. Usually, the processing temperature needs to be as high as 270-320°C, and it is not easy to prepare products with thin thickness and large area. [0003] For smart homes such as air conditioners, sweeping robots, and televisions, infrared remote controls are generally required to control, but the internal structure and components of the machine cannot be exposed, that is, when the materials are required to prepare thin-walled products (thickness ≤ 0.5cm), It can transmit infrared light but not visible light. ...

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
IPC IPC(8): C08L69/00C08L25/06C08L25/10C08L51/00
CPCC08L69/00C08L2201/10C08L25/06C08L25/10C08L51/003
Inventor 林士文陈平绪叶南飚黄宝奎官焕祥李玉虎付锦锋
Owner KINGFA SCI & TECH CO LTD
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