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

Method and device for modifying high-polymer materials through hot gas and ultrasonic wave

A polymer material and hot gas technology, which is applied in the field of polymer material modification, can solve the problem of active regulation of substrate components without molecular chains, etc.

Inactive Publication Date: 2013-06-12
BEIFANG UNIV OF NATITIES
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In short, there is currently no method and equipment for actively adjusting the molecular chain, aggregated structure or substrate composition of the substrate after the polymer material is formed into a product.

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
  • Method and device for modifying high-polymer materials through hot gas and ultrasonic wave

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Surface hardening of injection molded products. Take high-density polyethylene injection molding standard sample (no shape and size requirements, just put it down) and place it in the cavity 10 of the ultrasonic processing device, and pass argon gas from the gas mixing chamber 4 into the cavity 10 of the ultrasonic processing device , under the condition of gas pressure 0.15Mpa, raise the temperature and keep the constant temperature to 55°C for 5 minutes, and start while maintaining (it can also be started after the temperature is maintained, which has little effect on the results, the same as in the following examples 2 and 3) Ultrasonic is used for sample processing, the processing time is 20min, the ultrasonic frequency is 40KHz, and the power is 200w.

[0027] After treatment, the surface hardness of the samples increased by an average of 5%.

Embodiment 2

[0029] The surface group conformation changes. Take the protein film and place it in the cavity 10 of the ultrasonic processing device. The ethanol is vaporized in the gas mixing chamber 4, and is passed into the cavity 10 of the ultrasonic processing device to form a gas with a pressure of 0.15 MPa and a temperature of 80°C. The temperature is kept constant for 5 minutes. At the same time start the ultrasonic treatment for 15min, the ultrasonic frequency is 20KHz, and the power is 100w.

[0030] After the treatment, ethanol was removed in vacuo, and the surface of the sample changed from hydrophobic to hydrophilic.

Embodiment 3

[0032] The aggregate structure changes. The glass fiber reinforced PP material spline is placed in the processing cavity, and the N 2 The gas is formed in the gas mixing chamber 4, and then passed into the cavity 10 of the ultrasonic processing device. The gas pressure is 0.2Mpa, the temperature is 65°C, and the temperature is kept constant for 10 minutes. At the same time, the ultrasonic processing device is started at the constant temperature, and the ultrasonic treatment is performed for 15 minutes. The ultrasonic frequency is 40KHz, and the power 200w.

[0033] The average tensile strength of the sample after treatment can be increased by 10%.

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 method and a device for modifying high-polymer materials through hot gas and ultrasonic wave, and in particular relates to the method and the device thereof for processing materials through stressing the surfaces of heated polymer materials or partial base material chain segments or macromolecule chains to move by utilizing the heated gas under the high-energy ultrasonic effect. The method is characterized by comprising the following steps: placing high-polymer materials into an enclosed container, then introducing a gas, starting ultrasonic wave to process the materials under certain pressure and temperature conditions, and taking out after processing. The method is used for regulating structure forms or components for the inner part or the surface of the base of the high-polymer material product, and under the combined effects of appropriate temperature, pressure and the hot gas as well as ultrasound and through regulating different parameters to achieve the aims of modifying various performances of the high-polymer materials, such as surface hardness, hydrophobicity, tensile strength and the like, and the method can be realized by adopting the device provided by the invention.

Description

technical field [0001] The invention relates to a method and device for modifying polymer materials through hot gas and ultrasonic waves, especially using heated gas under the action of high-energy ultrasonic to force the surface of the heated polymer material or part of the substrate segment or large Molecular chains move to realize the method and device used for material processing. Background technique [0002] The structure of polymers includes all levels of polymer chains and aggregated structures. The former refers to the geometric arrangement of atoms or groups or segments in a molecular chain when the interaction within the macromolecule reaches equilibrium, while the latter refers to the geometric arrangement between molecular chains when the interaction between macromolecules reaches equilibrium. For polymer materials, the morphology of the above-mentioned different structures will affect the macroscopic properties of polymer materials. Usually, the inhomogeneity...

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): C08J7/00
Inventor 王美怡王华山
Owner BEIFANG UNIV OF NATITIES
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