Phosphorus-based organic matter intercalation structure selective infrared absorption material, preparation method and application thereof

A technology of infrared absorption and organic matter, which is applied in the field of selective infrared absorption materials with phosphine-based organic matter intercalation structure and its preparation, can solve the problems of limited application and absorption defects, and achieve the effects of easy preparation, low cost and simple process

Inactive Publication Date: 2010-09-15
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, MgAl-CO 3 -The wavelength of infrared rays absorbed by LDHs is not in the peak range of infrared rays radiated by the surface at night, and there are obvious absorption defects, which limit its application in thermal insulation agricultural film to a certain extent

Method used

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  • Phosphorus-based organic matter intercalation structure selective infrared absorption material, preparation method and application thereof
  • Phosphorus-based organic matter intercalation structure selective infrared absorption material, preparation method and application thereof
  • Phosphorus-based organic matter intercalation structure selective infrared absorption material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Step A: 45.0g (0.12mol) of solid Al(NO 3 ) 3 9H 2 O and 61.5g (0.24mol) of solid Mg(NO 3 ) 2 ·6H 2 O dissolves in removing CO 2 Prepare 300ml of mixed salt solution A in deionized water; and dissolve 28.8g (0.72mol) of solid NaOH in deionized water to prepare 300ml of alkali solution B. Rapidly nucleate the alkali solution and the salt solution in a fully back-mixed rotary liquid film reactor at room temperature, crystallize the obtained slurry at 100°C for 6 hours, and centrifuge to separate the obtained sample until the pH value is close to 7 to obtain hydrotalcite. body filter cake. After sampling and drying, its molecular formula was determined to be MgAl-NO 3 -LDHs, its Mg 2+ / Al 3+ =2:1.

[0038] Take 30g (containing 0.02mol NO 3 - ) The above filter cake is used to remove CO 2 Ultrasonic dispersion with deionized water to prepare 150ml suspension.

[0039] Step B: Weigh 12g (0.04mol) of aminotrimethylene phosphonic acid (abbreviated as ATMP in Engli...

Embodiment 2

[0043] Step A: 45.0g (0.12mol) of solid Al(NO 3 ) 3 9H 2 O and 61.5g (0.24mol) of solid Mg(NO 3 ) 2 ·6H 2 O dissolves in removing CO 2 300ml of mixed salt solution A was prepared in deionized water; another 28.8g (0.72mol) of solid NaOH was dissolved in 2 300ml of alkaline solution B was prepared in deionized water. Rapidly nucleate the alkali solution and the salt solution in a fully back-mixed rotary liquid film reactor at room temperature, crystallize the obtained slurry at 100°C for 6 hours, and centrifuge to separate the obtained sample until the pH value is close to 7 to obtain hydrotalcite. body filter cake. Take a small amount and dry at 70°C for 24 hours to obtain MgAl-NO 3 -LDHs, its Mg 2+ / Al 3+ =2:1.

[0044] Take 30g (containing 0.02mol NO 3 - ) The above filter cake is used to remove CO 2 Ultrasonic dispersion in deionized water to prepare a 150ml suspension.

[0045] Step B: Weigh 9.1g (0.04mol) of bisglyphosate (abbreviated as PMIDA in English) a...

Embodiment 3

[0049] Step A: 45.0g (0.12mol) of solid Al(NO 3 ) 3 9H2 O and 71.4g (0.24mol) solid Zn(NO 3 ) 3 ·6H 2 O dissolves in removing CO 2 300ml of mixed salt solution A was prepared in deionized water; another 28.8g (0.72mol) of solid NaOH was dissolved in 2 Prepare 300ml of alkaline solution B in deionized water. Rapidly nucleate the alkali solution and the salt solution in a fully back-mixed rotary liquid film reactor at room temperature, crystallize the obtained slurry at 100°C for 6 hours, and centrifuge to separate the obtained sample until the pH value is close to 7 to obtain hydrotalcite. body filter cake. After sampling and drying, its molecular formula was determined to be ZnAl-NO 3 -LDHs, whose Zn 2+ / Al 3+ =2:1.

[0050] Take 30g (containing 0.017mol NO 3 - ) The above filter cake is used to remove CO 2 Ultrasonic dispersion with deionized water to prepare 150ml suspension.

[0051] Step B: Weigh 10.2g (0.034mol) amino trimethylene phosphonic acid (ATMP) and ...

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Abstract

The invention provides a phosphorus-based organic matter intercalation structure selective infrared absorption material, a preparation method and the application thereof. The infrared absorption material can be simplified into POH-LDHs, and has the molecular formula of (M2+) 1-x (Al3+) x(OH) 2(An-) a(NO3-) b. mH2O. The preparation method of the material comprises the steps of: taking hydrotalcite as precursor; adopting an ion exchange method to insert phosphorus-based organic matter negative ion into the hydrotalcite layer; and assembling, and obtaining the phosphorus-based organic matter intercalation structure selective infrared absorption material with good crystalline phase structure. The infrared absorption material has excellent infrared absorption capability, and is better in the infrared absorption effect than MgAl-CO3-LDHs, thus being a good infrared absorption material. The material is suitable for being applied to a thin polymer film of polyethylene or ethylene-vinlacetate copolymer, etc.

Description

technical field [0001] The invention relates to a selective infrared absorption material and its preparation method and application, in particular to a selective infrared absorption material with a phosphine-based organic compound intercalation structure and its preparation method and application. Background technique [0002] Polyolefin materials such as low-density polyethylene (LDPE) have obvious advantages in the preparation of thermal insulation agricultural films due to their good flexibility, light transmission and processability. Although polyethylene resin has been widely used in the preparation of agricultural films, its infrared transmittance is high and its thermal insulation performance is poor. The heat absorbed by the surface from sunlight during the day will be quickly lost in the form of infrared radiation at night. Adding infrared absorbing materials to polyethylene resin, while maintaining its good light transmission, improving the infrared absorbing perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08K3/28C08K5/49C08L23/06
Inventor 李殿卿王丽静冯俊婷
Owner BEIJING UNIV OF CHEM TECH
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