Preparation and use of phenylethylene block copolymer micro-nano microsphere

A technology of styrene blocks and nano-microspheres, which is applied in coatings, textiles, papermaking, and fiber treatment, etc. It can solve the problems of difficult control of microsphere size, time-consuming and labor-intensive, difficult to enlarge, etc., and achieves simple and easy operation. The effect of reducing production costs and reducing cumbersome steps

Inactive Publication Date: 2009-07-15
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1) Preparation of this micro-nano microsphere by chemical synthesis method is time-consuming and labor-intensive, and the required cost is relatively high;
[0007] 2) The process conditions are unstable;
[0008] 3) Microsphere preparation technology is unstable and difficult to scale up;
[0009] 4) The size of the microspheres is difficult to control

Method used

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  • Preparation and use of phenylethylene block copolymer micro-nano microsphere
  • Preparation and use of phenylethylene block copolymer micro-nano microsphere
  • Preparation and use of phenylethylene block copolymer micro-nano microsphere

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Microspheres prepared after exposure to 2% star-shaped styrene-butadiene triblock polymer precipitant for 1 h

[0029] Accurately weigh 0.04 g of star-shaped styrene-butadiene triblock polymer, add toluene solvent to 2.0 g, and dissolve under stirring. Pour an appropriate amount of precipitant methanol into the jar, and seal it tightly for a while. Put the clean glass piece into the above-mentioned jar with methanol vapor atmosphere, and drop 5 drops of the polymer solution on the glass piece, and then seal the jar again. After standing still for 1 h, the glass slides were taken out and observed under a microscope.

[0030] The scanning electron micrographs of the prepared star-shaped styrene-butadiene triblock copolymer microspheres are shown in figure 1 , the particle size distribution diagram of the prepared star-shaped styrene-butadiene triblock copolymer microspheres is shown in Figure 5 .

Embodiment 2

[0031] Example 2: Microspheres prepared after the concentration of 1% linear styrene-butadiene diblock polymer precipitation agent exposed for 50min

[0032] Accurately weigh 0.03 g of linear styrene-butadiene diblock polymer, add toluene solvent to 3.0 g, and dissolve under stirring. Pour an appropriate amount of precipitant methanol into the jar, and seal it tightly for a while. Put the clean glass piece into the above-mentioned jar with methanol vapor atmosphere, spread 0.1 ml of the polymer solution evenly on the glass piece, and seal the jar again. After standing still for 50min, take out the glass piece and observe it under a microscope.

[0033] The scanning electron micrographs of the prepared linear styrene-butadiene diblock copolymer microspheres are shown in figure 2 .

Embodiment 3

[0034] Example 3: Microspheres prepared after the concentration of 1% linear styrene-butadiene triblock polymer precipitant exposed for 30min

[0035]Accurately weigh 0.03 g of linear styrene-butadiene triblock polymer, add solvent cyclohexane to 3.0 g, and dissolve under stirring. Pour an appropriate amount of precipitant acetone into the jar, and seal it tightly for a while. Put the clean glass piece into the above-mentioned jar with acetone vapor atmosphere, spread 0.1 ml of the polymer solution evenly on the glass piece, and seal the jar again. After standing still for 30min, take out the glass slide and observe under the microscope.

[0036] The scanning electron micrographs of the prepared linear styrene-butadiene triblock copolymer microspheres are shown in image 3 .

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Abstract

A preparation method and the application thereof for styrene block copolymer micro-nanometer microballon relate to a micro-nanometer microballon. The preparation method and the application thereof for the styrene block copolymer micro-nanometer microballon are provided; wherein the preparation method is easy and practicable; the prepared micro-nanometer microballon by the method have good apparent characteristics and is well distributed with controllable particle sizes which range from nanometer-to-micrometers. The styrene block copolymer is dissolved in a solvent to obtain a styrene block copolymer solution which is coated on the surface of a solid and exposed to precipitator steam atmosphere so that the styrene block copolymer micro-nanometer microballon is obtained. The styrene block copolymer micro-nanometer microballon has unique super-hydrophobicity, is treated by UV-irradiation or ozonation, and has super oil repellent character; therefore, the styrene block copolymer micro-nanometer microballon can serve as the classification of paint and textile, etc.

Description

technical field [0001] The invention relates to a micro-nano microsphere, in particular to a preparation method and application of a styrene block copolymer micro-nano microsphere. Background technique [0002] Styrenic Block Copolymers (Styrenic Block Copolymers, SBC) refers to a block in the polymer is polystyrene, such as styrene-butadiene copolymer, styrene-isoprene block copolymer and their Hydrogenated addition copolymers, etc., the block composition includes two-block, three-block and random copolymerization, etc., and the molecular structure has a linear, star-shaped and other structures, and is usually used as a thermoplastic elastomer. Styrene block copolymer has the characteristics of high strength, softness, small permanent deformation, etc., and has rubber elasticity. It is suitable for adhesives and sealing materials for hot-melt processing, and is used in shoemaking, plastic modification, asphalt modification, and waterproof coatings. , liquid sealing materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/12C08L53/00C09D153/00D06M15/233
Inventor 熊晓鹏邹伟伟
Owner XIAMEN UNIV
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