Unlock instant, AI-driven research and patent intelligence for your innovation.

Flame-retardant poly(ethylene terephthalate) composite material and preparation method thereof

A technology of ethylene glycol phthalate and composite materials, which is applied in the field of plastic processing, and can solve the problems of physical property degradation, poor mechanical properties, polyester decomposition and degradation, etc.

Inactive Publication Date: 2013-09-11
SHENZHEN KEJU NEW MATERIAL
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, if a flame retardant and a flame retardant auxiliary are blended in order to impart self-extinguishing properties to the polyester resin, not only in the preparation and molding process of the composition, but also when the molded product is used in a high-temperature atmosphere, the The interaction with the flame retardant additive used in combination will decompose and deteriorate the polyester as the matrix, resulting in a decrease in physical properties and poor mechanical properties.

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
  • Flame-retardant poly(ethylene terephthalate) composite material and preparation method thereof
  • Flame-retardant poly(ethylene terephthalate) composite material and preparation method thereof
  • Flame-retardant poly(ethylene terephthalate) composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The embodiment of the present invention also provides the preparation method of above-mentioned flame-retardant polyethylene terephthalate composite material, and its technological process is as follows figure 1 shown. The method comprises the steps of:

[0032] S1: Take polyethylene terephthalate, flame retardant, toughening agent and transesterification agent respectively according to the formula of above-mentioned flame-retardant polyethylene terephthalate composite material;

[0033] S2: Stir and mix polyethylene terephthalate, flame retardant, toughening agent and transesterification agent to obtain a mixed material;

[0034] S3: Extrude the mixed material and granulate to obtain the flame-retardant polyethylene terephthalate composite material.

[0035] Specifically, in the step S1 of the preparation method of the above-mentioned flame-retardant polyethylene terephthalate composite material, the components of the polyethylene terephthalate, flame retardant, toug...

Embodiment 1

[0044] The formula component of flame-retardant polyethylene terephthalate composite material parts by weight is as follows:

[0045] 100 parts of polyethylene terephthalate, 20 parts of flame retardant, 2 parts of toughening agent, 0.5 parts of antioxidant, 2 parts of transesterification agent.

[0046] The preparation method of the flame-retardant polyethylene terephthalate composite material is as follows:

[0047] S11: take each component respectively according to the prescription of above-mentioned flame-retardant polyethylene terephthalate composite material;

[0048] S12: Place each component weighed in step S11 in a high-speed mixer and stir and mix for 10 minutes to obtain a mixed material;

[0049] S13: Add the mixed material into the hopper of the twin-screw extruder, extrude, and pelletize to obtain the flame-retardant polyethylene terephthalate composite material. The temperature of each section of the mixed material in the twin-screw extruder is: 235 ° C for th...

Embodiment 2

[0051] The formula component of flame-retardant polyethylene terephthalate composite material parts by weight is as follows:

[0052] 100 parts of polyethylene terephthalate, 23 parts of flame retardant, 3 parts of toughening agent, 0.6 parts of antioxidant, 5 parts of transesterification agent.

[0053] The preparation method of the flame-retardant polyethylene terephthalate composite material is as follows:

[0054] S21: take each component respectively according to the prescription of above-mentioned flame-retardant polyethylene terephthalate composite material;

[0055] S22: placing each component weighed in step S21 in a high-speed mixer and stirring and mixing for 15 minutes to obtain a mixed material;

[0056] S23: Add the mixed material into the hopper of the twin-screw extruder, extrude, and granulate to obtain the flame-retardant polyethylene terephthalate composite material. The temperature of each section of the mixed material in the twin-screw extruder is: 238°C...

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 flame-retardant poly(ethylene terephthalate) composite material and a preparation method thereof. The flame-retardant poly(ethylene terephthalate) composite material comprises the following components in parts by weight: 100 parts of poly(ethylene terephthalate), 20-30 parts of transparent flame retardant, 1-3 parts of toughening agent and 2-10 parts of ester-exchange agent. The components of the flame-retardant poly(ethylene terephthalate) composite material interacts during an extrusion process, so that the flame-retardant poly(ethylene terephthalate) composite material has the advantages of excellent fluidity, toughness and luster, excellent fatigue resistance, solvent resistance, creep property and flame retardancy, high light transmittance and low haze. The preparation method of the flame-retardant poly(ethylene terephthalate) composite material, a one-step mixing, reacting, extruding and granulating process is utilized, thus the preparation method has the advantages of simple process, convenience in operation, great benefit, low cost and suitability for industrial production.

Description

technical field [0001] The invention belongs to the technical field of plastic processing, in particular to a flame-retardant polyethylene terephthalate composite material and a preparation method thereof. Background technique [0002] Thermoplastic aromatic polyester resins represented by polyethylene terephthalate (PET) have excellent mechanical strength, chemical resistance, and electrical insulation, so they are widely used in electrical, electronic parts, and automotive parts And other mechanical parts, etc., in order to improve product safety, it is also required to implement flame retardancy on molding materials. [0003] However, if a flame retardant and a flame retardant auxiliary are blended in order to impart self-extinguishing properties to the polyester resin, not only in the preparation and molding process of the composition, but also when the molded product is used in a high-temperature atmosphere, the The interaction with the flame retardant additive used in...

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 Patents(China)
IPC IPC(8): C08L67/02B29B9/06
Inventor 徐东徐永孙航
Owner SHENZHEN KEJU NEW MATERIAL