【摘要】：智能加熱服裝能夠為生活和工作在低溫環(huán)境下的人們提供積極保暖,改善穿著者的熱舒適性,而且局部積極保暖服裝服飾能夠有效緩解患有風濕性疾病患者的疼痛。柔性加熱元件是智能加熱服裝的重要組成部分,然而目前還未見到文獻對柔性加熱織物的安全性、舒適性和加熱性能進行系統(tǒng)的研究。基于此,本文采用自主開發(fā)的織物熱性能測試儀對鍍銀紗線、集成鍍銀紗線的加熱織物和服裝的加熱性能(包括平衡溫度、升溫速率、功率密度和表面溫度均勻性等指標)進行了系統(tǒng)的研究。本文首先研究了鍍銀紗線的熱穩(wěn)定性、耐水洗性和表面的熱場分布與負載電壓之間的曲線等性能指標。實驗選用的三種鍍銀紗線(試樣一和試樣二:28.2tex和19.7tex的鍍銀縫紉線,試樣三:9.7tex的鍍銀紗線),實驗結果顯示了隨著老化時間和老化溫度的增加,鍍銀紗線斷裂強力和導電性都會降低。在老化溫度為80℃,老化時間為360 h時,試樣一、試樣二和試樣三的電阻分別從30Ω,37.78Ω 和 82.36 Ω 升高到 128.65Ω,2187.24Ω 和 561.52 Ω,其增幅分別為 328.83%,5689.99%和581.82%。在80℃,100℃,120℃度環(huán)境溫度下執(zhí)行360 h的老化之后,三種試樣的斷裂強度分別降低了 26.24%,26.46%和27.19%。在經(jīng)過10次水洗之后,三種試樣的電阻分別升高了 34.37%、130%和294.2%。在5V負載電壓下,三種試樣的平衡溫度分別為65.47℃,48.82℃和27.63℃。為了評估鍍銀紗線的安全性,有必要了解鍍銀紗線在不同負載下其內部和表面溫度場的變化規(guī)律,因此,我們構建了鍍銀紗線的熱力學數(shù)學模型和有限元模型,依據(jù)測試的數(shù)據(jù),采用根據(jù)實際測試經(jīng)驗值擬合散熱系數(shù)h值的方法對模型中應用到的散熱系數(shù)值進行推導,比傳統(tǒng)依據(jù)平均值的方法模型計算結果偏差的標準方差降低了至少1.59%,計算結果偏差部分小于7.7%,實驗結果顯示了構建模型的有效性,該模型能夠為加熱織物和加熱服裝的設計開發(fā)提供了實驗和理論依據(jù)。為了探索最優(yōu)的鍍銀紗線加熱織物的集成方法和制備工藝,采用了針織、機織和刺繡三種方法制備柔性加熱織物,三種方法制備的加熱織物的平衡溫度與加熱織物的功率密度密切相關,在5V負載電壓下,三種方法制備的試樣平衡溫度都能達到60度以上,鍍銀紗線的間隔越小,表面溫度越均勻,刺繡法能夠將鍍銀紗線以任意的方式繼承到不同的織物基底上,針織和機織加熱織物的制備工藝相對更為復雜,對鍍銀紗線的集成方式控制不如刺繡法,并且機織加熱織物的制備會浪費更多的鍍銀紗線。隨后,將鍍銀紗線加熱織物與聚吡咯涂層加熱織物的性能進行了對比,實驗結果顯示聚吡咯涂層加熱織物的耐水洗性能比鍍銀紗線加熱織物差。
[Abstract]:Intelligent heating clothing can provide active warmth for people living and working in low temperature environment, improve the thermal comfort of the wearer, and local active warm clothing can effectively alleviate the pain of patients with rheumatic diseases. Flexible heating element is an important part of intelligent heating clothing. However, there is no systematic research on the safety, comfort and heating performance of flexible heating fabric. Based on this, the heating properties of silver-plated yarn, the heating fabric of silver-plated yarn and clothing (including equilibrium temperature, heating rate, heating rate) were tested by the self-developed fabric thermal performance tester. Power density and surface temperature uniformity are studied systematically. In this paper, the thermal stability, washing resistance and the curve between the surface thermal field distribution and load voltage of silver-plated yarns are studied. Three kinds of silver-plated yarns (sample 1 and sample 2: silver-plated sewing thread of 28.2tex and 19.7tex, sample 3: silver-plated yarn of 9.7tex), the experimental results show that with the increase of aging time and aging temperature, The breaking strength and conductivity of silver-plated yarn will decrease. When the aging temperature is 80 鈩，

本文編號：2361022