Membrane and Film

์„ ํƒ์  ํˆฌ์Šต ๋ฉค๋ธŒ๋ ˆ์ธ

Selective moisture permeable membrane

๋ƒ‰๋ฐฉ์€ ๊ฑด๋ฌผ์—์„œ ๊ฐ€์žฅ ๋น ๋ฅด๊ฒŒ ์„ฑ์žฅํ•˜๋Š” ์ตœ์ข… ์ˆ˜์š”์ฒ˜๋กœ, 1990๋…„๊ณผ 2018๋…„ ์‚ฌ์ด์— ์—๋„ˆ์ง€ ์ˆ˜์š”๊ฐ€ 3๋ฐฐ ์ด์ƒ ์ฆ๊ฐ€ํ•ด ์•ฝ 2,000ํ…Œ๋ผ ์™€์Šค์‹œ(TWh)์— ์œก๋ฐ•ํ•˜๊ฒŒ ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ์ˆ˜๋ถ„ ํˆฌ๊ณผ ๋ฉค๋ธŒ๋ ˆ์ธ์„ ์ด์šฉํ•œ ๊ณต๊ธฐ ๋ƒ‰๊ฐ ์‹œ์Šคํ…œ์˜ ์—๋„ˆ์ง€ ํšจ์œจ์€ ๊ธฐ์กด์˜ ์‹œ์Šคํ…œ์— ๋น„ํ•ด 50%์ด์ƒ ํฌ๊ฒŒ ๊ฐœ์„ ๋ฉ๋‹ˆ๋‹ค. ์ด๋Š” ๋ฉค๋ธŒ๋ ˆ์ธ์„ ์ด์šฉํ•˜๋ฉด ์Šตํ•œ ๊ณต๊ธฐ์—์„œ ์ˆ˜์ฆ๊ธฐ๋ฅผ ์ž ์—ด ๋ฐฉ์ถœ ์—†์ด ์ œ๊ฑฐํ•  ์ˆ˜ ์žˆ์–ด ์ „๋ ฅ ์†Œ๋น„๋ฅผ ์ค„์ด๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.


Cooling is the fastest-growing end-demand in buildings, with energy demand more than tripled between 1990 and 2018, approaching about 2,000 terawashes (TWh). The energy efficiency of the air cooling system using the moisture permeable membrane is significantly improved by more than 50% compared to conventional systems. This is because the membrane can remove water vapor from moist air without latent heat release, reducing power consumption.

์†Œ์ˆ˜์„ฑ ๊ณ ๋ถ„์ž ๋‚ด CNF์˜ ๋ถ„์‚ฐ์„ฑ์„ ํ–ฅ์ƒ์‹œํ‚ค๊ธฐ ์œ„ํ•ด 

CNF์˜ ํ‘œ๋ฉด์„ ๋ฌด๊ธฐ ์ž…์ž๋กœ ์ฒ˜๋ฆฌํ–ˆ์Šต๋‹ˆ๋‹ค.


In order to improve the dispersibility of CNF in the hydrophobic polymer  The surface of the CNF was treated with inorganic particles.

์ด ๋ฌด๊ธฐ/์œ ๊ธฐ ํ˜ผํ•ฉ๋ฌผ์€ ๋‚˜๋…ธ์„ฌ์œ  ํ‘œ๋ฉด๊ณผ 

ํ•˜์ด๋“œ๋ก์‹ค ๊ทธ๋ฃน์˜ ์†”-๊ฒ” ๊ต์ฐจ ๊ฒฐํ•ฉ์„ ํ†ตํ•ด ๋งŒ๋“ค์–ด์ง‘๋‹ˆ๋‹ค.


This inorganic/organic mixture contains nanofiber surface and Made via sol-gel cross-linking of hydroxyl groups.

ํˆฌ์ˆ˜์„ฑ์˜ ๋‘๊ป˜ ์˜์กด์„ฑ

thickness dependence of permeability


๋ฉค๋ธŒ๋ ˆ์ธ์˜ ๋‘๊ป˜๊ฐ€ ๋ฏธ์„ธ์„ฌ์œ ์˜ ๊ธธ์ด์™€ ๋น„์Šทํ•˜๊ฑฐ๋‚˜ ์–‡์•„์ง€๋ฉด ํˆฌ์ˆ˜์„ฑ์ด ๊ธ‰๊ฒฉํžˆ ์ฆ๊ฐ€ํ•ฉ๋‹ˆ๋‹ค

The water permeability increases dramatically when the membrane thickness is similar to or thinner than the length of the microfibers