拉伸對人發纖維的改變分析
隨著社會的發展,配戴假發已發展為一種美的時尚,也成為了一種時尚的消費品。假發套的長短、樣式、透氣性能、手感、發質品的品質為重要指標。人發屬於天然材料,來源豐富,其透濕透氣性、阻zu燃ran性xing優you於yu化hua纖xian的de特te性xing,成cheng為wei了le製zhi備bei假jia發fa商shang品pin的de首shou選xuan原yuan料liao。研yan究jiu表biao明ming,通tong過guo將jiang相xiang對dui短duan的de纖xian維wei拉la伸shen到dao適shi當dang長chang度du加jia以yi定ding形xing,既ji可ke以yi滿man足zu需xu求qiu問wen題ti,而er且qie降jiang低di成cheng本ben,提ti高gao附fu加jia值zhi,具ju有you很hen好hao的de商shang業ye前qian景jing。在zai實shi驗yan台tai的de平ping板ban上shang沿yan直zhi尺chi畫hua一yi條tiao直zhi線xian,使shi人ren發fa纖xian維wei與yu直zhi線xian重zhong合he,保bao持chi人ren發fa纖xian維wei伸shen直zhi但dan不bu伸shen長chang,分fen別bie在zai兩liang端duan用yong鉛qian筆bi標biao記ji,之zhi後hou用yong直zhi尺chi測ce量liang兩liang標biao記ji點dian的de距ju離li即ji為wei人ren發fa纖xian維wei的de長chang度du。
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人(ren)發(fa)纖(xian)維(wei)的(de)鱗(lin)片(pian)層(ceng)是(shi)疏(shu)水(shui)性(xing)的(de),而(er)皮(pi)質(zhi)細(xi)胞(bao)是(shi)親(qin)水(shui)性(xing)的(de),這(zhe)是(shi)由(you)於(yu)鱗(lin)片(pian)表(biao)層(ceng)的(de)類(lei)脂(zhi)層(ceng)結(jie)構(gou)。一(yi)旦(dan)纖(xian)維(wei)的(de)類(lei)脂(zhi)層(ceng)受(shou)到(dao)破(po)壞(huai),會(hui)增(zeng)加(jia)纖(xian)維(wei)表(biao)麵(mian)的(de)親(qin)水(shui)性(xing)。人(ren)發(fa)經(jing)拉(la)伸(shen)定(ding)形(xing)後(hou)的(de)接(jie)觸(chu)角(jiao)降(jiang)低(di)明(ming)顯(xian),隨(sui)著(zhe)拉(la)伸(shen)率(lv)的(de)增(zeng)加(jia),接(jie)觸(chu)角(jiao)隨(sui)之(zhi)減(jian)小(xiao)。一(yi)方(fang)麵(mian)拉(la)伸(shen)細(xi)化(hua)後(hou),人(ren)發(fa)鱗(lin)片(pian)被(bei)破(po)壞(huai),每(mei)個(ge)鱗(lin)片(pian)邊(bian)緣(yuan)間(jian)距(ju)增(zeng)大(da),鱗(lin)片(pian)可(ke)見(jian)高(gao)度(du)增(zeng)大(da),使(shi)水(shui)分(fen)更(geng)容(rong)易(yi)經(jing)過(guo)疏(shu)水(shui)層(ceng),進(jin)入(ru)親(qin)水(shui)性(xing)的(de)皮(pi)質(zhi)細(xi)胞(bao); 另(ling)一(yi)方(fang)麵(mian),在(zai)高(gao)拉(la)伸(shen)倍(bei)數(shu)時(shi),表(biao)麵(mian)鱗(lin)片(pian)會(hui)有(you)一(yi)定(ding)程(cheng)度(du)的(de)開(kai)裂(lie),形(xing)成(cheng)多(duo)孔(kong)型(xing)結(jie)構(gou),而(er)空(kong)隙(xi)內(nei)部(bu)的(de)親(qin)水(shui)基(ji)團(tuan)相(xiang)對(dui)表(biao)麵(mian)要(yao)多(duo)很(hen)多(duo),產(chan)生(sheng)毛(mao)細(xi)現(xian)象(xiang),增(zeng)加(jia)親(qin)水(shui)性(xing)。
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