低熱傳導水性PU可見光穿透率與隔熱性質研究

Research on Visible Light Transmittance and Thermal Insulation Properties of Low Thermal Conductivity Waterborne Polyurethane

翁崇鈞(C.J. Wong) ； 洪詩涵(S.H. Hung) ； 曾柏策(P.T. Tseng)

《紡織綜合研究期刊》 32卷2期 (2022/04) Pp. 34-39

https://doi.org/10.6439/TTRJ.202204_32(2).0007

摘要

因應全球電力資源短缺，須降低空調及照明成本，達到住商節能之目的。考量光源節省與光線舒適性，在保有可見光穿透情形下，以隔絕近紅外線熱能為主。本實驗運用水性聚氨酯搭配氣凝膠與近紅外線遮蔽劑，用以阻隔近紅外線與熱源傳導。實驗結果顯示塗料於氣凝膠添加3wt%、近紅外線遮蔽劑1wt%的情形下，能達到熱傳導係數0.014W/m．K；150m厚之塗佈材透光度為37.4%，IR遮蔽率72%。量測塗料黏度變化後，評估塗料貯存穩定性可＞3個月以上。

關鍵字

氣凝膠 ； 水性聚氨酯 ； 可見光穿透率 ； 熱傳導係數

並列摘要

Due to the shortage of electric power resources, it is necessary to reduce the cost of air conditioning and lighting to achieve the energy saving for residential and businesses. Considering the light saving and light comfort, it's mainly to isolate the near infrared to make sure that visible light can penetrate sustainably. In this study, the coating for waterborne polyurethane was combined with aerogel and near-infrared shielding agent. It has ability to block the near-infrared and reduce heat conduction. The results show the thermal conductivity was 0.014W/m．K which coating was adding 3 wt% aerogel and 1 wt% near-infrared shielding agent. And with the coating thickness of 150μm, visible light transmittance was 37.4%, IR shielding rate was 72%. After measured the change of viscosity, the coating can store for more than 3 months.

並列關鍵字

Aerogel ； waterborne polyurethane ； visible light transmittance ； thermal conductivity