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

Rapid-crystallization and high-impact-strength PET compound and preparation method thereof

A high-impact, composite technology, which is applied in the field of rapid crystallization and high-impact-strength PET composites and its preparation, can solve the problems of poor impact strength and slow crystallization rate of products, and achieve improved impact strength, increased crystallization rate, and broadened Applied effect

Inactive Publication Date: 2016-05-04
NINGXIA UNIVERSITY
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, in order to solve the problems of slow crystallization rate and poor impact strength of PET products during processing, it is necessary to provide a PET compound with rapid crystallization and high impact strength and its corresponding preparation method, so as to broaden the scope of PET in engineering. The purpose of plastic application

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
  • Rapid-crystallization and high-impact-strength PET compound and preparation method thereof
  • Rapid-crystallization and high-impact-strength PET compound and preparation method thereof
  • Rapid-crystallization and high-impact-strength PET compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1, dry the PET pellets, TMC-210, primary antioxidant 1010 and secondary antioxidant 168 in a vacuum drying oven for 12 hours, and set the temperature to 90°C; dry 0.2% (mass percentage) TMC-210, the main antioxidant 1010 of 0.04% (mass percentage), the auxiliary antioxidant 168 of 0.08% (mass percentage) mix homogeneously, then drop a few drops on the PET pellet of 99.68% (mass percentage) Liquid paraffin, the TMC-210 that will be mixed is 0.2% by mass percentage, the main antioxidant 1010 that is 0.04% by mass percentage, and the auxiliary antioxidant 168 that is 0.08% by mass percentage is put into PET matrix, stirs evenly, makes The antioxidant is uniformly adhered to the surface of the PET matrix, and the mixture is put into a twin-screw extruder, melted and extruded, drawn, air-cooled, and finally pelletized for later use.

[0032] The temperature setting of each section of the extruder is as follows: the temperature of the first zone to the tenth zone is 2...

Embodiment 2

[0036] Example 2: Dry the PET pellets, TMC-210, primary antioxidant 1010 and secondary antioxidant 168 in a vacuum oven for 12 hours, and set the temperature to 90°C; dry 0.4% (mass percentage) TMC-210, the main antioxidant 1010 of 0.04% (mass percentage), the secondary antioxidant 168 of 0.08% (mass percentage) mix homogeneously, then drop a few drops on the PET pellet of 99.48% (mass percentage) Liquid paraffin, the TMC-210 that will be mixed is 0.4% by mass percentage, the main antioxidant 1010 that is 0.04% by mass percentage, and the secondary antioxidant 168 that is 0.08% by mass percentage is put into PET matrix, stirs evenly, makes The antioxidant is uniformly adhered to the surface of the PET matrix, and the mixture is put into a twin-screw extruder, melted and extruded, drawn, air-cooled, and finally pelletized for later use.

[0037] The temperature setting of each section of the extruder is as follows: the temperature of the first zone to the tenth zone is 260°C, 2...

Embodiment 3

[0041] Example 3: Dry PET pellets, TMC-210, primary antioxidant 1010 and secondary antioxidant 168 in a vacuum drying oven for 12 hours, and set the temperature to 90°C; dry 0.6% (mass percentage) TMC-210, the main antioxidant 1010 of 0.04% (mass percentage), the secondary antioxidant 168 of 0.08% (mass percentage) mix homogeneously, and then drop a few drops on the PET pellet of 99.28% (mass percentage) Liquid paraffin, the TMC-210 that will be mixed as 0.6% by mass percentage, the main antioxidant 1010 that is 0.04% by mass percentage, and the auxiliary antioxidant 168 that is 0.08% by mass percentage are put into PET matrix, stir evenly, make The antioxidant is uniformly adhered to the surface of the PET matrix, and the mixture is put into a twin-screw extruder, melted and extruded, drawn, air-cooled, and finally pelletized for later use.

[0042] The temperature setting of each section of the extruder is as follows: the temperature of the first zone to the tenth zone is 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

PropertyMeasurementUnit
Crystallization temperatureaaaaaaaaaa
Impact strengthaaaaaaaaaa
Crystallization temperatureaaaaaaaaaa
Login to View More

Abstract

The invention provides a rapid-crystallization and high-impact-strength PET compound which is prepared from PET, phenyl phosphate, a primary antioxidant and a secondary antioxidant. The invention also provides a preparation method of the rapid-crystallization and high-impact-strength PET compound. The method comprises the following processing steps: respectively drying PET granules, the phenyl phosphate, the primary antioxidant and the secondary antioxidant, mixing the dried phenyl phosphate, primary antioxidant and secondary antioxidant to be uniform to form a mixture A for later use, then dropwise adding liquid paraffin on the PET granules, throwing the mixture A into the PET granules, and uniformly stirring, so that the phenyl phosphate, primary antioxidant and secondary antioxidant are uniformly adhered to the surface of a PET granule base body to obtain a PET mixture; performing melt extrusion, strip drawing, air cooling and granulating on the PET mixture; extruding the granule material again, and forming. According to the PET compound provided by the invention, the crystallization capacity and shock resistance of the PET are improved and the application of the PET in the field of engineering plastics is expanded.

Description

Technical field: [0001] The invention belongs to the technical field of PET composite material and its preparation, in particular to a PET composite with rapid crystallization and high impact strength and a preparation method thereof. Background technique: [0002] Polyethylene terephthalate, or PET for short, is a polar and crystallizable polymer. PET is mainly prepared from dimethyl terephthalate (DMT) or by stepwise polymerization of terephthalic acid (TPA) and ethylene glycol (EG). The molecular structural formula of PET is: [0003] [0004] PET is cheap and has excellent physical and chemical properties and mechanical properties, and can maintain excellent fatigue resistance, friction resistance, aging resistance, electrical insulation, etc. in a wide temperature range. In addition, PET is resistant to organic solvents and inorganic acids, and has low production energy consumption and good processability, so it is widely used in the fields of synthetic fibers, fil...

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): C08L67/02C08K5/5317
CPCC08L67/02C08L2205/24C08L91/06C08K5/5317
Inventor 罗发亮沈志远司朋飞雷小梅丁生芳纪利杰金少强
Owner NINGXIA UNIVERSITY