Cov nyhuv ntawm cellulose ether rau yas dawb shrinkage ntawm volle

1. Kev tshawb fawb keeb kwm yav dhau los ntawm cov nyhuv ntawmCellulose etherOn yas dawb shrinkage ntawm tshuaj khib

Tshuaj khib yog cov khoom siv dav siv hauv kev tsim kho cov dej num, thiab kev ruaj khov ntawm nws qhov kev ua tau zoo muaj qhov cuam tshuam tseem ceeb ntawm cov tsev zoo. Yas Dawb Shrinkage yog qhov tshwm sim uas yuav tshwm sim hauv kev tshuaj khib ua ntej cov teeb meem xws li cov kab nrib pleb, cuam tshuam nws lub durability thiab zoo nkauj. Cellulose ether, raws li ib txwm siv hauv collport, muaj qhov tseem ceeb cuam tshuam rau cov yas dawb shrinkage ntawm cug.

2. Lub hauv paus ntsiab lus ntawm cellulose ether reducing yas dawb shrinkage ntawm volv

Cellulose ether muaj dej zoo heev. Dej poob hauv cug yog ib qho tseem ceeb ua rau yas dawb shrinkage. Cov pab pawg hydroxyl ntawm lub cellulose ither molecules thiab cov pa tawm rau hauv dej lwg hydres, muab dej dawb rau hauv cov dej khi, yog li txo dej poob. Piv txwv li, hauv qee qhov kev tshawb fawb, nws tau pom tias nrog kev nce ntawm cellulose ether ntau npaum li cas, cov dej phwj tuaj yeem txo tus kab caparly. Nyiammethyl hydroxyprropyl cellulose ether (HPMC), Thaum cov tshuaj yog 0.1-0.4 (pawg feem ntawm feem ntawm txoj kev ua kom tiav cov dej xis ntawm txoj cai xis los ntawm 9-29%.

Cellulose ether txhim kho cov khoom siv hluav taws xob, cov qauv network ntawm cov khoom xyaw tshiab, thiab cov khoom ua yeeb yaj kiab tshiab uas cuam tshuam ntawm cov dej. Cov kev sib koom tes ntawm cov kev sib koom ua ke tau txo qis kev ntxhov siab tsim los ntawm noo noo hloov nyob rau hauv lub tshuaj khib, ua rau muaj kev ywj pheej dawb shrinkage.

3. Cov nyhuv ntawm cellulose ether noj cov tshuaj yas dawb shrinkage ntawm tshuaj khib

Cov kev tshawb fawb tau pom tias cov yas dawb ntawm txoj cai xis cog tseg txo qis ntawm cellule ether noj. Noj HPMC ua piv txwv, thaum cov tshuaj yog 0.1-0.4 (Mass fraction), cov yas dawb shrinkage ntawm xis mas coll tuaj yeem raug txo los ntawm 30-50%. Qhov no yog vim tias raws li cov koob tshuaj nce, nws cov dej khaws cov nyhuv thiab lwm qhov kev txwv tsis pub cuam tshuam ntxiv kom nce ntxiv.

Txawm li cas los xij, cov nqi ntawm cov cellulose ether tsis tuaj yeem nce ib qho ua ib ntus dhau. Ntawm ib sab tes, los ntawm kev lag luam pom kev pom zoo, ntau dhau ntxiv yuav ua rau tus nqi nce ntxiv; Ntawm qhov tod tes, ntau heev cellulose cellulose cellulose cellulose cellulose yuav muaj kev tsis zoo rau lwm yam khoom ntawm cug cug, xws li lub zog ntawm cug.

4. Qhov tseem ceeb ntawm cov cawv ntawm cellulose ether rau ntawm cov yas dawb shrinkage ntawm volle

Los ntawm qhov kev pom ntawm cov ntawv thov kev lag luam engineering, cov ntawv tsim nyog ntawm cellulose enpmim tau zoo txo ​​cov khoom siv tshuaj khib tawg. Qhov no yog qhov tseem ceeb tshaj plaws rau kev txhim kho cov tsev zoo, tshwj xeeb tshaj yog rau kev txhim kho lub zog ntawm cov qauv xws li phab ntsa.

Hauv qee cov haujlwm tshwj xeeb nrog cov high shot lub tsev zoo, xws li qee cov tuam tsev muaj kuab dawb, los ntawm kev tswj hwm cov kab cig, nws tuaj yeem ua kom tau raws li qhov phiaj xwm ua tau raws cov qauv zoo Cov.

5. Kev tshawb fawb kev cia siab

Txawm hais tias muaj qee cov kev tshawb fawb txog kev cuam tshuam ntawm cellulose ether rau ntawm cov yas dawb shrinkage, tseem muaj ntau yam uas tuaj yeem tshawb nrhiav hauv qhov tob. Piv txwv li, kev cuam tshuam mechanism ntawm ntau hom ntawm cov cellulose muaj kev muaj kev nyab xeeb ntawm cov yas dawb shrinkage ntawm nws ua ke nrog lwm cov kev sib ntxiv.

Nrog kev txhim kho kev txuas ntxiv ntawm kev tsim kho thev naus laus zis, cov kev cai tshuaj khib kev tshuaj khib tau tseem nce ntxiv. Yuav tsum muaj kev tshawb fawb ntxiv ntawm kev yuav ua li cas thiaj li yuav muaj tseeb tshaj plaws ntawm cellulose kom ua tiav kev hloov pauv yas thaum noj lwm yam khoom ntawm cug.