Kodi katundu wa carboxymethyl ndi ati?

Kodi katundu wa carboxymethyl ndi ati?

Yankho: Carboxymethyl cellulose imakhalanso ndi malo osiyanasiyana chifukwa cha madigiri ake osiyana. Mulingo wazolowa m'malo mwake, amadziwikanso kuti kuchuluka kwa chikondwerero, kumatanthauza kuchuluka kwa H m'magulu atatu oh hydroxyl omwe adasinthidwa ndi chcoona. Magulu atatu a hydroxyl pomwe mphete yochokera ku Cellulose ili ndi 0,4 h mu gulu la hydroxyl lomwe lasinthidwa ndi Carboxymethyl, imatha kusungunuka m'madzi. Pakadali pano, amatchedwa digiri ya 0,4 kapena digiri yogwiritsira ntchito (yogwiritsira ntchito digiri 0.4-1.2).

Katundu wa Carboxymethyl cellulose:

. Ili ndi kubadwa bwino ndi mphamvu yomanga.

. Ilinso ndi emulsive inforfor ya mafuta ndi sera, ndipo ndi yonyamuka mwamphamvu.

. Komabe, kupatula kutsogolera acetate, imatha kusungunukabe mu sodium hydroxide Solution, ndipo magetsi ndi aluminiyamu amasungunuka mosavuta mu 1% ammoniidi hydroide.

. Malinga ndi kuwonera, mtengo wamtengowo ukakhala 2.5, kugwedezeka ndi mpweya wayamba. Chifukwa chake Ph 2.5 titha kuwonedwa ngati malo ovuta.

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. Makulidwewo amachepetsa chimodzimodzi pomwe matenthedwe akukwera, ndipo mosemphanitsa. Kukhazikika kwa mamasukidwe am'madzi kutentha kwa firiji kumakhala kosasinthika, koma mafayilo amatha kuchepa pang'onopang'ono pomwe mwakhala pamwamba pa 80 ° C kwa nthawi yayitali. Nthawi zambiri, kutentha sikupitirira 110 ° C, ngakhale kutentha kumasungidwa kwa maola atatu, kenako ndikulumikiza mpaka 25 ° C, mafalowo amabwererabe ku dziko loyambirira; Koma kutentha kukatentheza ma 120 ° C kwa maola awiri, ngakhale kuti kutentha kumabwezeretsedwa, ma viwako akutsika pofika 18,9%. .

. Nthawi zambiri, pH ya mafayilo otsika kwambiri kuti musalowerere, pomwe panali njira yothetsera mavuto, ngati mafayilo ake amayamba kuchepa pang'ono, Ngati PH ya mafayilo apamwamba kwambiri apepuka kuti asalowerere, chidwi chake chidzachepa. Kuchepa kwakuthwa.

(8) Zogwirizana ndi ma glues ena osungunuka madzi, ofewa ndikupanga. Mwachitsanzo, zikugwirizana ndi guluu wa nyama, chingamu achiarabu, glycerin ndi wosungunuka sungunura. Amagwirizananso ndi galasi lamadzi, mowa wa urevinyl, urea-formaldehyde, melamine-formaldehyde utoto, etc., koma mpaka pang'ono.

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. Kwa gypsum, gwiritsani ntchito ma vinclents mavisction (2% am'madzi am'madzi pa 300-600mpha · 3-600mpha · 3-600mpha · 4 - 3%

(11) Njira yake yothetsera magazi imagwira ntchito yopumira mu gypsum.

. Pambuyo pakuipitsidwa, mamasukidwe amatsika ndikufatsa adzawonekera. Kuonjezera kuchuluka koyenera pasadakhale kungasunge mamasukidwe ake komanso kupewa mishoni kwa nthawi yayitali. Omwe amapezeka: pang'ono (1.2-Benzisothiazolin-3-1-1), Thlbaazil, chlorothelonil, etc.

Kodi hydroxypropyl ndi meth methylcelulose ndi chiyani wogwira ntchito yamadzi ya bina wa anydrite?

Yankho: Hydroxypypyl methylcellulose ndi njira yokwanira yosungirako madzi a gyprum cemitery. Ndi kuchuluka kwa zomwe zili hydroxypropyl methylcellulose. Kusunga kwamadzi kwa Gypsum adawonjezera mwachangu. Ngati palibe mankhwala osungidwa amawonjezeredwa, kuchuluka kwa madzi a gypsum centerc ndi pafupifupi 68%. Kuchuluka kwa mankhwala osungirako madzi ndi 0.15%, kusunga madzi osunga madzi a gypsum adafika 90.5%. Ndi zofunikira za madzi apansi pa pulasitala. Mlingo wosungira madzi amaposa 0,2%, onjezani kuchuluka kwa mankhwalawa, ndipo kusunga madzi kwa madzi ku gypsum ch cememer kumawonjezera pang'onopang'ono. Kukonzekera kwa aeyyrite zonyamula zida. Mlingo woyenera wa hydroxypypyl methylcellulose ndi 0.1% -0.15%.

Kodi zotsatirapo zosiyanasiyana za cellulose yosiyanasiyana pamaneti ndi ziti?

Yankho: Onse a Carboxymethyl cellulose ndi methyl cellulose angagwiritsidwe ntchito ngati mankhwala osungirako madzi, motero ndizoyenera kuti pa celymethyl cellouse, motero ndizoyenera kuti ma celymethyl cellouse, motero ndizoyenera kuti ma celloxyl cellouse, motero ndizoyenera kuti pa cellose cellolithy cellose cellouse, ndikuchepetsa mphamvu ya pulasitala. Methyl cellulose ndi chinthu chosakanikirana chosakanizira cha gypsum ch squeminthry chophatikiza madzi, kulimbikitsa, kupatula kuti mitundu ina imakhala yothetsa pamene Mlingo wake ndi waukulu. apamwamba kuposa carboxymethyl cellulose. Pachifukwa ichi, zida zambiri zopondera zonunkhira zimatengera njira yolumikizira carboxymethyl ndi methyl cellulose. Mwanjira imeneyi, onse omwe amasungidwa ndi madzi onse a chiwonetsero cha gypsum ch cend ndi momwe akugwirira ntchito gyplum Cememulal