新型充气夹克的研制与保暖性能评价

为实现防寒服保暖性能的动态调节,研发了以空气为保暖材料的Mountain充气夹克,采用外置手动按压充气泵连续改变充气量及其保暖性能。基于暖体假人实验,在不同充气量、有无袖子、是否穿抓绒衣3种实验条件下测试了充气夹克的局部热阻和总热阻,对比了NuDown充气夹克的隔热性能。实验结果表明:充气状态下的局部热阻和总热阻明显高于未充气状态,充气量会显著影响热阻,充气量越大服装热阻越高,且Moutain充气夹克在充气状态下比NuDown充气夹克具有更佳的保暖调节能力;有袖子时的局部热阻和总热阻明显高于无袖子状态,腹部和背部表现尤为明显;穿抓绒衣可有效增加服装系统热阻,但会很大程度地影响充气夹克的保暖调节能力。

Development of novel air inflatable jacket and thermal insulating property evaluation

To facilitate dynamic regulation of thermal insulating property of cold protective clothing, an air inflatable jacket, branded as Mountain, with air as thermal insulating material was developed, with air inflation and hence the thermal insulation being achieved by pressing the air pump manually. The local and total thermal insulation of the developed air inflatable jacket was tested by thermal manikin with four air inflation volumes, with or without sleeves and whether or not to wear fleece. Meanwhile, the thermal insulating properties of Mountain were compared with that of air inflatable jacket NuDown. The results showed that the local and total thermal insulation of air inflatable jacket Mountain in the inflated condition are obviously higher than that when not inflated, and the thermal insulation become more obvious when increasing the air inflation volume. The adjustment ability for thermal insulation of the newly developed air inflatable jacket Mountain is better than that of NuDown under the inflated condition. The local and total thermal insulation effects of air inflatable jacket with sleeves are significantly higher than those without sleeves, and the differences are especially notable at the abdomen and back. It is also shown that the thermal insulation of the inflatable jacket provide better thermal insulation when a fleece is worn in conjunction, but it greatly affect the adjustment ability.