Soft transparent polyurethane surface film and preparation method thereof

A polyurethane and skin technology, used in textiles and papermaking, can solve the problems of inability to meet high-strength requirements, high production costs, and large fluctuations in product performance, achieving excellent light aging resistance, improved flexibility, and enhanced transparency. Effect

Pending Publication Date: 2020-11-24
SEIREN SUZHOU CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the polyurethane product is environmentally friendly and solvent-free synthetic skin film is suitable for car interior decoration, but its production process and processing methods often have problems such as unstable quality during processing, large fluctuations in product performance, and failure to meet high-strength requirements, resulting in high manufacturing costs.

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
  • Soft transparent polyurethane surface film and preparation method thereof
  • Soft transparent polyurethane surface film and preparation method thereof
  • Soft transparent polyurethane surface film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The invention provides a soft and transparent polyurethane skin film and a preparation method thereof. The transparent polyurethane skin film comprises a base fabric 1, an adhesive layer 2 and a surface layer 3, and an adhesive layer 2 is formed between the base fabric 1 and the surface layer 3 The base fabric 1 and the surface layer 3 are bonded together through the adhesive layer 2, and the mass ratio of the surface layer 3, the adhesive layer 2, and the base fabric 1 is 2:3:3-5.

[0037] The surface layer 3 includes polyurethane, a bridging agent, a thickener, a leveling agent, and a defoamer, and the parts by mass of each material component of the surface layer 3 are: 100 parts of polyurethane, 5 to 10 parts of a bridging agent, 0.5-1 part of leveling agent, 0.3-1 part of defoamer, 20-50 parts of thickener; the bridging agent is a multifunctional carbodiimide polymer, the leveling agent is silicone, and the thickener is Acrylic polymer, defoamer is silicone polymer....

Embodiment 1

[0049] A soft and transparent polyurethane skin film provided in this embodiment and a preparation method thereof,

[0050] Prepare the release paper and base cloth first; the production environment temperature is 0°C-40°C, and the humidity is 20%-80%;

[0051] S1 surface layer production, according to the material components of the surface layer 3, the number of selected parts is 100 parts of polyurethane, 5 parts of carbodiimide polymer for bridging agent, 0.5 part of leveling agent silicone, and defoamer silicone 0.3 parts of polymer, 50 parts of thickener acrylic polymer; the stirring speed of the prepared surface liquid is 720rpm-880rpm, the stirring time is 60min-65min, and the viscosity of the surface liquid is 3000cps; The treatment time is 60min~65min; the negative pressure value of the vacuum degassing treatment is -90kPa; the defoaming treatment is stirred at the same time; the speed of the surface layer coating process is 8m / min, and the usage amount is 70g / m 2 ;T...

Embodiment 2

[0058] Another soft and transparent polyurethane skin film provided in this embodiment and its preparation method differ from Example 1 in that:

[0059] S1 surface layer production, according to the material components of the surface layer 3, the selected parts are 100 parts of polyurethane, 8 parts of carbodiimide polymer as bridging agent, 0.8 parts of leveling agent silicone, and defoaming agent silicone 0.7 parts of polymers, 15 parts of pigments, inorganic pigments, iron oxide and carbon black, 40 parts of thickener acrylic polymers; the stirring speed of the prepared surface layer liquid is 720rpm-880rpm, and the stirring time is 60min-65min. The viscosity is 4000cps; the treatment time of the surface layer liquid defoaming treatment is 60min~65min; the negative pressure value of the negative pressure vacuum defoaming treatment is -90kPa; the defoaming treatment is stirred at the same time; the speed of the surface layer liquid coating process is 6m / min, the dosage is ...

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
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention provides a soft transparent polyurethane surface film. The surface film comprises base cloth, an adhesive layer and a surface layer, wherein the adhesive layer is arranged between the base cloth and the surface layer, and the base cloth and the surface layer are bonded together through the adhesive layer, and each of the surface layer and the adhesive layer contains polyurethane, a bridging agent, a thickener, a leveling agent and a defoamer; and meanwhile, the invention further provides a preparation method of the light, thin and flexible polyurethane surface film, wherein the method comprises the steps of manufacturing the surface layer, manufacturing the adhesive layer, bonding the adhesive layer and the base cloth together, curing and stripping, and by improving components of all the layers, the abrasion resistance, the breaking resistance and the transparency of the surface film are enhanced. In addition, the surface film also has an excellent light aging resistanceeffect, so that the phenomena of aging, peeling, cracking and the like of a product after long-term solarization are avoided.

Description

technical field [0001] The invention relates to the technical field of polyurethane composite materials, in particular to a soft and transparent polyurethane skin film and a preparation method of the polyurethane skin film. Background technique [0002] Polyurethane material (Polyurethane, abbreviated as PU) is the abbreviation of polyurethane, which is a new kind of organic polymer material, which is widely used in many fields of national economy because of its excellent performance. It has many advantages: low density, soft texture, comfortable and light to wear; good dimensional stability, long storage life; excellent wear resistance and flex resistance; excellent shock absorption and anti-skid performance; good temperature resistance; good chemical resistance, etc. The product application fields involve light industry, chemical industry, electronics, textile, medical treatment, construction, building materials, automobile, national defense, aerospace, aviation and so on...

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): D06N3/14D06N3/00
CPCD06N3/145D06N3/0061D06N3/0036D06N3/0097D06N3/0077D06N2211/28D06N2209/1685D06N2209/1678D06N2209/103
Inventor 王曦
Owner SEIREN SUZHOU 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