High-weather-resistance high-environmental-friendliness flame-retardant polycarbonate alloy material based on transesterification control, and preparation method thereof

A technology of flame-retardant polycarbonate and alloy materials, which is applied in the field of polymer materials, can solve problems such as the difficulty in effectively controlling transesterification reactions, the reduction of mechanical performance indicators of alloy materials, and the evaluation and testing of long-term weather resistance of materials that are not involved. The effects of excellent UV resistance, good rigidity and impact resistance

Inactive Publication Date: 2019-11-08
上海华合复合材料有限公司
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a prominent problem of the above-mentioned system is that there is an unavoidable transesterification reaction between PC and PBT/PET, coupled with the inherent performance defects of recycled PET resin, the resulting PC alloy material can be used in some special environments such as long-period light Under the influence of comprehensive factors such as heat, moisture, etc., the transesterification reaction is often difficult to effectively control, resulting in a significant decrease in the mechanical properties and other key performance indicators of the alloy material.
There are few reports on the above-mention

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-weather-resistance high-environmental-friendliness flame-retardant polycarbonate alloy material based on transesterification control, and preparation method thereof
  • High-weather-resistance high-environmental-friendliness flame-retardant polycarbonate alloy material based on transesterification control, and preparation method thereof
  • High-weather-resistance high-environmental-friendliness flame-retardant polycarbonate alloy material based on transesterification control, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1

[0043] Weigh the virgin PC resin, virgin PBT resin, multi-block copolymer toughener, and weather resistance stabilizer according to the data of Example 1 shown in Table 1, and mix them evenly to obtain mixed raw material A, which is weighed according to the stated weight percentage Take recycled PET resin, organic phosphorus flame retardant, and transesterification reaction control agent to obtain mixed raw material B.

[0044] After the above-mentioned mixed raw materials A and B are fully dried, the mixed raw material A is placed in the main feeding bin of a twin-screw extruder that is tightly meshed and rotating in the same direction, and is added to the barrel of the extruder through the main feeding screw ; Place the mixed raw material B in the lateral feeding bin, and add it to the extruder barrel by the lateral feeding screw. The diameter of the screw extruder is 36mm, the length-to-diameter ratio L / D is 44, and the temperature of each zone of the main ba...

Example Embodiment

[0047] Example 2

[0048] Weigh the virgin PC resin, virgin PBT resin, multi-block copolymer toughener, and weather resistance stabilizer according to the data of Example 2 shown in Table 1, and mix them evenly to obtain mixed raw material A, which is weighed according to the stated weight percentage Take recycled PET resin, organic phosphorus flame retardant, and transesterification reaction control agent to obtain mixed raw material B.

[0049] After the above-mentioned mixed raw materials A and B are fully dried, the mixed raw material A is placed in the main feeding bin of a twin-screw extruder that is tightly meshed and rotating in the same direction, and is added to the barrel of the extruder through the main feeding screw ; Place the mixed raw material B in the lateral feeding bin, and add it to the extruder barrel by the lateral feeding screw. The diameter of the screw extruder is 36mm, the length-to-diameter ratio L / D is 44, and the temperature of each zone of the main ba...

Example Embodiment

[0050] Example 3

[0051] Weigh the virgin PC resin, virgin PBT resin, multi-block copolymer toughener, and weather resistance stabilizer according to the data of Example 3 shown in Table 1, and mix them evenly to obtain mixed raw material A, which is weighed according to the stated weight percentage Take recycled PET resin, organic phosphorus flame retardant, and transesterification reaction control agent to obtain mixed raw material B.

[0052] After the above-mentioned mixed raw materials A and B are fully dried, the mixed raw material A is placed in the main feeding bin of a twin-screw extruder that is tightly meshed and rotating in the same direction, and is added to the barrel of the extruder through the main feeding screw ; Place the mixed raw material B in the lateral feeding bin, and add it to the extruder barrel by the lateral feeding screw. The diameter of the screw extruder is 36mm, the length-to-diameter ratio L / D is 44, and the temperature of each zone of the main ba...

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 relates to a high-weather-resistance high-environmental-friendliness flame-retardant polycarbonate alloy material based on transesterification control, and a preparation method thereof.The polycarbonate alloy material is composed of the following specific raw materials by weight: 40-70 parts of virgin PC resin, 5-20 parts of virgin PBT resin, 5-30 parts of regenerated PET resin, 5-15 parts of an organic phosphorus flame retardant, 3-10 parts of a multi-block copolymer type toughening agent, 1-8 parts of a transesterification control agent and 1-8 parts of a weatherability stabilizing agent. According to the invention, the recycled PET resin and the halogen-free phosphorus flame retardant in a certain ratio are introduced, so the double environmental protection effects of recycling of a base material and non-halogenation of the flame retardant are realized; directed at the performance deficiencies that the regenerated PET resin is easy to degreed after crushing and processing a plurality of times and that a phosphide flame retardant is not resistant to damp heat, a high-efficiency transesterification control agent is introduced and cooperatively used with the weatherability stabilizing agent; and the obtained polycarbonate alloy material not only has good impact resistance and flame-retardant self-extinguishing performance, but also has greatly improved performance indexes like long-term resistance to humidity and heat and anti-UV stability in outdoor complex environments.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a flame-retardant polycarbonate alloy material with high weather resistance and high environmental protection based on transesterification control and a preparation method thereof. Background technique [0002] Polymer materials are a new class of materials that have gradually emerged with the development of the modern chemical industry. Due to their many types of monomer components, convenient synthesis, and low cost, they have developed extremely rapidly in recent decades. At present, there are nearly a hundred kinds of mass-produced polymers with different monomers and different characteristics, and the types and total output are still increasing year by year. The problem of plastic waste is also becoming more and more serious. The state of environmental protection poses a huge challenge. Therefore, how to better recycle and reuse plastic waste has become...

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): C08L69/00C08L67/02C08K5/49C08K5/5313
CPCC08L69/00C08L2201/02C08L2201/08C08L2205/025C08L2205/035C08L67/02C08K5/49C08K5/5313
Inventor 徐凯华
Owner 上海华合复合材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap