Low-cost recycled PET bottle flake-based hollow glass bead curtain and preparation method thereof

A technology of hollow glass microspheres and glass microspheres, which is applied in the field of projection screens, can solve the problems of glass microspheres being easily scratched off, uneven surfaces, and easy to be stained, and achieve good and stable projection effects and high light reflectivity , cost-saving effect

Inactive Publication Date: 2018-04-17
吴海
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common defect of this kind of glass bead curtain is that it is afraid of moisture, and the beads will fall off if it is used improperly.
Because of its uneven surface, it is easy to be dirty, so when cleaning the pollutants on the surface of the glass bead curtain, the glass beads on the surface are more likely to be scraped off

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The low-cost reclaimed PET bottle flake-based hollow glass bead curtain of the present embodiment is prepared by the following specific steps:

[0018] (1) Cut the recovered PET bottle flakes into small pieces with a length of 2 cm and a width of 0.5 cm, and place them in a vacuum drying oven at 160°C for 7 hours to obtain dried PET bottle flakes; Tetraformic dianhydride and antioxidant 1010 are added to a twin-screw extruder at a mass ratio of 1:0.25:0.006 for melt extrusion, transferred to a granulator for granulation, and cooled to obtain a PET masterbatch;

[0019] (2) Add PET masterbatch to 50 times by weight of tetrachloroethane and phenol in a mixed solvent with a mass ratio of 1:1.5, heat up and stir to dissolve completely; add 6 times by weight of stannous chloride Mix the prepared mixed solution with acetone at a mass ratio of 1:15, mix and stir evenly to obtain a casting solution; cast the casting solution onto a glass slide, and then dry it in a vacuum oven ...

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 discloses a low-cost recycled PET bottle flake-based hollow glass bead curtain. The low-cost recycled PET bottle flake-based hollow glass bead curtain is characterized by being obtainedthrough the steps of firstly, carrying out chain extension and tackifying on a recycled PET bottle flake through pyromellitic dianhydride to obtain PET master batches, mixing the PET master batches with an assistant and preparing a PET film by adopting a film casting technology; secondly, cleaning and deoiling hollow glass beads and carrying out surface roughening and coupling treatment to obtainthe glass beads subjected to surface coupling treatment; thirdly, depositing titanium dioxide and lanthanum oxide on the surfaces of the hollow glass beads by adopting a hydrothermal method to obtainmodified hollow glass beads; and finally uniformly spreading the modified hollow glass beads on the surface of the PET film subjected to bidirectional thermal stretching and cooling. The low-cost recycled PET bottle flake-based hollow glass bead curtain is simple in production technology and low in cost; and the glass beads are good in bonding fastness, thereby ensuring that the glass bead curtainhas a good stable projection effect.

Description

technical field [0001] The invention belongs to the field of projection screens, and in particular relates to a low-cost recycled PET bottle sheet-based hollow glass bead screen and a preparation method thereof. Background technique [0002] At present, most projection screens used for film or video image projection are formed by superimposing a black base plate and a white polyvinyl chloride (PVC) thin layer. Traditional projection screens have low reflectivity (gain) parameters, resulting in dark projection images that need to be seen clearly in a dark space; and traditional projection screens have poor scattering capabilities, and projection images can only be seen in a dark space. Can only be seen from a small viewing angle. [0003] In order to improve the reflection ability and scattering ability of the projection screen, people have proposed a glass bead curtain with glass beads glued on the PVC film. However, the common defect of this kind of glass bead curtain is ...

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 Applications(China)
IPC IPC(8): G03B21/625C08L67/02C08J5/18
CPCC08J5/18C08J2367/02G03B21/625
Inventor 吴海
Owner 吴海
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