TPU film for automobile seat and preparation method thereof

A film and seat technology, used in applications, home appliances, flat products, etc., can solve the problems of reduced film wear resistance, shortened service life of TPU film, poor wear resistance of polyurethane foam, etc., to improve corrosion resistance and resistance. Abrasiveness, improved compatibility and dispersion, excellent corrosion resistance

Inactive Publication Date: 2017-08-22
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyurethane foam has poor abrasion resistance, poor corrosion resistance and short service life
[0005] Because the seat often rubs against the fibers of the clothes, the TPU film used on the seat often falls off and warps, and the seat often comes into contact with the sweat secreted by the human body. The sweat has a high salt content and will damage the TPU. The film produces corrosion, which further reduces the wear resistance of the film, resulting in a significant reduction in the service life of the TPU film

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
  • TPU film for automobile seat and preparation method thereof
  • TPU film for automobile seat and preparation method thereof
  • TPU film for automobile seat and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of preparation method of TPU film for car seat, described method comprises the following steps:

[0045] (1) Add 70 parts of polyether polyol (number average molecular weight 8000) and 30 parts of hexamethylene diisocyanate into the container in turn, stir at a speed of 1200r / min, and vacuumize to -0.4kPa at 70°C to obtain Prepolymer;

[0046] (2) Add 1 part of ethylene glycol and 0.1 part of stannous octoate into the prepolymer obtained in step (1), and continue the reaction at 90° C. for 8 hours;

[0047] (3) Add 10 parts of polytetrafluoroethylene and 50 parts of polyvinyl formal to the reacted material in step (2), stir at a speed of 1200r / min for 2h, then join in the twin-screw extruder, Set the temperature of the feeding section of the twin-screw extruder to 150°C, the temperature of the mixing section to 160°C, the temperature of the extrusion section to 180°C, and the temperature of the head section to 200°C, and extrude to obtain a TPU film for car seat...

Embodiment 2

[0049] A kind of preparation method of TPU film for car seat, described method comprises the following steps:

[0050] (1) Put 50 parts of polyether polyol (number average molecular weight 10000) and 90 parts of hexamethylene diisocyanate into the container in turn, stir at a speed of 1500r / min, and vacuumize to -0.2kPa at 80°C to obtain Prepolymer;

[0051] (2) Add 5 parts of 1,3-propanediol and 2 parts of dibutyltin dioctoate into the prepolymer obtained in step (1), and continue the reaction at 100°C for 4 hours;

[0052] (3) Add 20 parts of polytetrafluoroethylene and 40 parts of polyvinyl formal to the reacted material in step (2), stir at a speed of 1500r / min for 1h, then join in the twin-screw extruder, Set the temperature of the feeding section of the twin-screw extruder to 160°C, the temperature of the mixing section to 180°C, the temperature of the extrusion section to 200°C, and the temperature of the head section to 220°C, and extrude to obtain a TPU film for car ...

Embodiment 3

[0054] A kind of preparation method of TPU film for car seat, described method comprises the following steps:

[0055] (1) Add 35 parts of polyether polyol (number average molecular weight 9000) and 75 parts of hexamethylene diisocyanate to the container in turn, stir at a speed of 1300r / min, and vacuumize to -0.3kPa at 75°C to obtain Prepolymer;

[0056] (2) Add 2 parts of 1,4-butanediol and 0.5 part of dibutyltin dilaurate in the formula amount to the prepolymer obtained in step (1), and continue the reaction at 95°C for 6 hours;

[0057] (3) Add 10 parts of polytetrafluoroethylene and 30 parts of polyvinyl formal to the reacted material in step (2), stir at a speed of 1400r / min for 1.8h, and then join in the twin-screw extruder , set the temperature of the feeding section of the twin-screw extruder to 155°C, the temperature of the mixing section to 170°C, the temperature of the extrusion section to 190°C, and the temperature of the head section to 210°C, and extrude to obt...

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
tensile strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to view more

Abstract

The invention relates to a TPU film for an automobile seat and a preparation method thereof. The TPU film contains the following raw materials: hexamethylene diisocyanate, polyether polyol, polytetrafluoroethylene, polyvinyl formal and a chain extender, wherein the mass ratio of polytetrafluoroethylene to polyvinyl formal is 1: (2-5). The TPU film has excellent wear resistance and corrosion resistance, is green and non-toxic and harmless to human body; the preparation method is simple in process and can be used for industrial production.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a TPU film and a preparation method thereof, in particular to a TPU film for car seats and a preparation method thereof. Background technique [0002] Thermoplastic Polyurethane (TPU) is a polymer material that can be melted by heating and can be dissolved by solvents. TPU molecules are linear, there is little crosslinking between molecules, and the glass transition temperature is low, so it has high strength, high elasticity and excellent wear resistance, oil resistance and low temperature resistance. [0003] TPU film has the characteristics of good toughness, high strength, odorless, non-toxic and can be heat-sealed. It is widely used in the fields of automobile industry, medical care and daily necessities. The traditional production process of TPU film is mainly casting. This process has low production capacity and uneven film thickness. All functional modification additives n...

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): C08L75/08C08L27/18C08L29/14C08G18/73C08G18/66C08G18/48C08G18/32C08G18/10B29C47/00B29C47/92B29B7/28B29L7/00B29C48/92
CPCB29B7/283B29B7/286B29C48/08B29C48/92B29C2948/92704B29L2007/00C08G18/10C08G18/48C08G18/73C08J5/18C08J2375/08C08J2427/18C08J2429/14C08L75/08C08L2203/16C08L2205/03C08L27/18C08L29/14C08G18/3206
Inventor 何建雄王一良杨博
Owner SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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