湖北省扭轉試(shi)樣試(shi)件(jian)廠家(jia)哪(na)家(jia)最好？

設(she)計了單纖(xian)(xian)維(wei)強(qiang)拉(la)伸性(xing)能的(de)(de)新測試方(fang)法,測試了4種(zhong)(zhong)木棉(mian)纖(xian)(xian)維(wei)的(de)(de)性(xing)能,結果發(fa)現(xian),木棉(mian)纖(xian)(xian)維(wei)拉(la)伸曲線(xian)與(yu)(yu)棉(mian)纖(xian)(xian)維(wei)相似,沒有明顯(xian)(xian)的(de)(de)屈(qu)服點.木棉(mian)纖(xian)(xian)維(wei)斷(duan)裂(lie)強(qiang)力和斷(duan)裂(lie)伸長(chang)率(lv)(lv)在一定范圍內均有分布,4種(zhong)(zhong)木棉(mian)纖(xian)(xian)維(wei)平均斷(duan)裂(lie)強(qiang)力1.44～1.71cN,平均斷(duan)裂(lie)伸長(chang)率(lv)(lv)1.83%～4.23%,纖(xian)(xian)維(wei)長(chang)度、線(xian)密(mi)度與(yu)(yu)木棉(mian)纖(xian)(xian)維(wei)的(de)(de)斷(duan)裂(lie)強(qiang)力明顯(xian)(xian)相關,4種(zhong)(zhong)木棉(mian)纖(xian)(xian)維(wei)相對(dui)斷(duan)裂(lie)強(qiang)度接近,而斷(duan)裂(lie)伸長(chang)率(lv)(lv)差(cha)異較大,木棉(mian)纖(xian)(xian)維(wei)初(chu)始模量(liang)因其品種(zhong)(zhong)和產地不同(tong)存在一定差(cha)異.與(yu)(yu)棉(mian)纖(xian)(xian)維(wei)相比(bi),木棉(mian)纖(xian)(xian)維(wei)斷(duan)裂(lie)伸長(chang)率(lv)(lv)低(di),斷(duan)裂(lie)強(qiang)度和初(chu)始模量(liang)與(yu)(yu)棉(mian)纖(xian)(xian)維(wei)相近,但因木棉(mian)纖(xian)(xian)維(wei)細(xi)軟而容易拉(la)斷(duan).

現有(you)(you)的(de)(de)(de)有(you)(you)關(guan)木(mu)棉(mian)纖(xian)(xian)維(wei)及其(qi)應用(yong)(yong)(yong)的(de)(de)(de)文獻中(zhong)(zhong),關(guan)于(yu)(yu)木(mu)棉(mian)纖(xian)(xian)維(wei)性(xing)(xing)能的(de)(de)(de)研究方(fang)面(mian),基本上集中(zhong)(zhong)于(yu)(yu)單纖(xian)(xian)維(wei)化學成分(fen)和性(xing)(xing)質(zhi)、纖(xian)(xian)維(wei)結(jie)構和物(wu)理性(xing)(xing)能等(deng)(deng)方(fang)面(mian);關(guan)于(yu)(yu)木(mu)棉(mian)纖(xian)(xian)維(wei)應用(yong)(yong)(yong)領域研究集中(zhong)(zhong)于(yu)(yu)其(qi)作(zuo)為浮力材(cai)(cai)料(liao)、吸油材(cai)(cai)料(liao)、復合材(cai)(cai)料(liao)等(deng)(deng)方(fang)面(mian)近(jin)年來關(guan)于(yu)(yu)木(mu)棉(mian)絮(xu)料(liao)、紡(fang)紗(sha)及其(qi)織物(wu)性(xing)(xing)能研究逐漸(jian)受(shou)到關(guan)注(zhu).強伸性(xing)(xing)能是木(mu)棉(mian)纖(xian)(xian)維(wei)重要的(de)(de)(de)力學性(xing)(xing)能之一(yi),對纖(xian)(xian)維(wei)成紗(sha)品(pin)質(zhi)及其(qi)制品(pin)使(shi)用(yong)(yong)(yong)價值(zhi)有(you)(you)重要影響(xiang),但由于(yu)(yu)木(mu)棉(mian)纖(xian)(xian)維(wei)短、易碎(sui)等(deng)(deng)缺點,測(ce)(ce)試非(fei)常麻煩,目(mu)前還沒(mei)有(you)(you)文獻對木(mu)棉(mian)纖(xian)(xian)維(wei)強伸性(xing)(xing)能的(de)(de)(de)測(ce)(ce)試做系統報道(dao).本文采用(yong)(yong)(yong)單根纖(xian)(xian)維(wei)強力測(ce)(ce)試的(de)(de)(de)方(fang)法,在大量(liang)實驗基礎上測(ce)(ce)試分(fen)析了木(mu)棉(mian)纖(xian)(xian)維(wei)的(de)(de)(de)拉伸性(xing)(xing)能,比(bi)較分(fen)析了不(bu)同品(pin)種木(mu)棉(mian)纖(xian)(xian)維(wei)強伸性(xing)(xing)能差異,研究結(jie)果有(you)(you)利于(yu)(yu)更好地(di)加(jia)工利用(yong)(yong)(yong)木(mu)棉(mian)纖(xian)(xian)維(wei).

測試儀(yi)器:XQ21單(dan)纖(xian)(xian)維強伸度儀(yi).采用氣動(dong)夾(jia)(jia)持器夾(jia)(jia)持纖(xian)(xian)維,保證(zheng)夾(jia)(jia)持力穩定且可(ke)根據不同(tong)的(de)纖(xian)(xian)維類(lei)型加以調(diao)節.夾(jia)(jia)持器鉗(qian)口所(suo)用夾(jia)(jia)持材(cai)料為非金屬材(cai)料,從(cong)而避免纖(xian)(xian)維被(bei)夾(jia)(jia)斷或打滑.

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