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

Preparation of near-infrared reflection phosphate color pigment

A near-infrared and color technology, applied in the field of ion-doped and compounded high near-infrared reflection pigment preparation, can solve the problem of less research on colorization of aluminum phosphate pigments, and achieve high color saturation, rich colors, and even heat distribution Effect

Active Publication Date: 2021-02-23
浙大宁波理工学院
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have found that white phosphates have high reflectivity, such as NaZnPO 4 and KZnPO 4 The high near-infrared reflectivity has been confirmed, but there are few studies on the colorization of aluminum phosphate pigments

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
  • Preparation of near-infrared reflection phosphate color pigment
  • Preparation of near-infrared reflection phosphate color pigment
  • Preparation of near-infrared reflection phosphate color pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019]Measure 1ml phosphoric acid (purity is 85%), weigh 7.5g aluminum nitrate nonahydrate and 3.84g citric acid, all dissolve in 20ml deionized water. The above system was placed in an experimental microwave oven and stirred at a temperature of 80°C for 90 minutes to form a precursor. The precursor was transferred to a crucible, put into a muffle furnace and calcined at 1000 °C for 2 hours, and finally the product AlPO was obtained 4 .

Embodiment 2

[0021] Measure 0.02mol phosphoric acid (purity is 85%), according to molecular formula Co 0.05 al 0.95 PO 4 , Weigh cobalt nitrate and aluminum nitrate, citric acid is weighed with the equimolar amount of phosphoric acid, all dissolve in 20ml deionized water. The above system was placed in an experimental microwave oven and stirred at a temperature of 80°C for 90 minutes to form a precursor. The precursor was transferred to a crucible, put into a muffle furnace and calcined at 1000 °C for 2 h, and finally the product Co 0.05 al 0.95 PO 4 .

Embodiment 3

[0023] Measure 0.02mol phosphoric acid (purity is 85%), according to molecular formula Co 0.2 al 0.8 PO 4 , Weigh cobalt nitrate and aluminum nitrate, citric acid is weighed with the equimolar amount of phosphoric acid, all dissolve in 20ml deionized water. The above system was placed in an experimental microwave oven and stirred at a temperature of 80°C for 90 minutes to form a precursor. The precursor was transferred to a crucible, put into a muffle furnace and calcined at 1000 °C for 2 h, and finally the product Co 0.1 al 0.9 PO 4 .

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
reflectanceaaaaaaaaaa
reflectanceaaaaaaaaaa
reflectanceaaaaaaaaaa
Login to View More

Abstract

The invention relates to a near-infrared reflection pigment and a preparation method thereof, which are characterized in that a microwave gel method combustion method combined process is adopted to prepare a colored porous heat insulation pigment with high near-infrared reflection. The general chemical formula of the pigment provided by the invention is MxAl1-xPO4 (M is a non-ferrous metal ion, and x is equal to 0-0.2). According to the invention, AlPO4 is used as a matrix, and non-ferrous metal ions are doped, so that the color of the pigment is enriched while the pigment is ensured to have higher heat-insulating property.

Description

technical field [0001] The invention belongs to technical field, relate to a kind of preparation method of inorganic pigment, relate in particular to aluminum phosphate (AlPO 4 ) as a substrate, ion-doped and compounded high near-infrared reflection (NIR) pigment preparation method. Background technique [0002] Phosphate has excellent anti-corrosion and flame-retardant properties, and is non-toxic and low-cost. Therefore, in recent years, phosphate pigments have been widely used in the fields of building materials, chemicals, and refractory materials. In fact, the advantages of phosphate in near-infrared reflection are also obvious. The near-infrared reflectance of white phosphate is 95%. Co-precipitation is commonly used in China to prepare phosphate materials. Among them, Su Dagen et al. prepared white phosphate by coprecipitation. NaZPO 4 Porous material, under the optimal process, the reflectivity of the product in the near-infrared band is as high as 95.2%, which 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): C09C1/40
CPCC09C1/40
Inventor 张艳辉尚龙安许冠杰
Owner 浙大宁波理工学院
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