Kugwiritsa ntchito Hometrocypypropyl ya methyl cellulose kupanga digiri ya polyrizinyl chloride

Zojambula: Kugwiritsa ntchito pabanjahydroxypypyl methylcelluloseM'malo motenga gawo limodzi ndikupanga pvc yokhala ndi digiri yayikulu polymerization idayambitsidwa. Zotsatira za mitundu iwiri ya hydroxpyl methylcellulose pazinthu za PVC yokhala ndi digiri ya polymerization idasanthula. Zotsatira zake zidawonetsa kuti zinali zotheka kuloweza ndi vuto la HerstRoxypropyl Mealulose yemwe amalowetsa.

Makina apamwamba a PVC ALIONO TIYENERA KUTI APHUNZITSI YA PVC yokhala ndi polymerization wa polymerization kwa oposa 1,700 [1]. Poyerekeza ndi pvc reture, okwera-polymerization pvc Resouty ali ndi malire kwambiri, kusokonekera pang'ono, kukana kutentha kwabwino, kukana kukana ndi kuvala kukana. Ndi chogwirizira chabwino cha mphira ndipo ukhoza kugwiritsidwa ntchito mumizere yamagalimoto, mawaya ndi zingwe, ma catolo azachipatala, etc. [2].

Njira yopangira pvc yokhala ndi digiri yayikulu ya polymerization imayatsidwa makamaka ma polymerization [3-4]. Kupanga njira yoyimitsira, yobalalika ndi wothandizira wofunikira, ndipo mtundu wake ndi kuchuluka kwake kumakhudza mawonekedwe a tinthu, kugawa kukula kwa tinthu, komanso kuchuluka kwa pulasitiki, ndi mafirizere omaliza a PVC Retun. Makina obalalitsidwa ndi polyvinyl ndi ma hydroxypyllulose ndi polyvinyl mowa wophatikizika, komanso opanga nyumba amagwiritsa ntchito izi.

1 Zida zopangira ndi zojambula

Zida zopangira ndi zida zogwiritsidwa ntchito poyesedwa zimawonetsedwa mu tebulo 1. Itha kuwoneka kuchokera pagome 1 yomwe imasankhidwa ndi hydroxyprose ya omwe amasankhidwa ndi meth pepala.

2 kuyesedwa

2. Kukonzekera kwa hydroxypypyl methylcellulose yankho

Tengani madzi owoneka bwino, ikani chidebe ndikutenthetsa ku 70 ° C, ndipo pang'onopang'ono onjezani ma hydroxypropyl osasunthika. Cellulilose imayandama pamadzi poyamba, kenako pang'onopang'ono zimabalalitsidwa mpaka pomwe zimasakanizidwa. Kuziziritsa yankho ku voliyumu.

Gome 1 zopangira ndi zida zawo

2. Njira yachiwiri yoyesera

Pa chipangizo chochepa cha 10 l, gwiritsani ntchito mankhwala a hydroxypropyl methl cellulose kuchititsa kuti ayesetse njira yoyambira mayeso yaying'ono; Gwiritsani ntchito nyumba yanyumba hydroxpyl methy cellose kuti alowe m'malo mwa hydroxypropyl methy celyolose yoyesa; Zinthu za PVC zimapangidwa ndi hydroxypypyl methyl celloluse adafanizidwa kuti aphunzire kutheka kusinthika kwanyumba hydroxypyl celyolose. Malinga ndi zotsatira za mayeso ang'onoang'ono, mayeso opanga amachitika.

2. Njira zitatu mayeso

Zisanachitike, yeretsani ketulo ya polymerization, tsekani valavu yapansi, iwonjezera kuchuluka kwa madzi opangidwa, kenako onjezerani omwazika; Tsekani chivundikiro cha ketulo, thunthu mutadutsa mayeso a nayitrogeni, kenako kuwonjezera vinyl chloride chomemer; Pambuyo pozizira, onjezerani woyambitsa; Gwiritsani ntchito kuzungulira madzi kuti mukweze mu ketulo kuti kutentha kwa kutentha, ndikuwonjezera njira ya ammonium bicarbonate munthawi yake kuti asinthe pH ya dongosolo; Pamene kukakamizidwa kukakamiza kupanikizika komwe kumatchulidwa mu formula, onjezani wothandizirana ndi kuwongolera, ndikuchotsa chomaliza cha PVC Retun adapezeka ndi centrifugation ndikuwuma powunikira.

2. 4 Njira Zakusanthula

Malinga ndi njira zoyeserera zoyenerera mu Enterprise Q31 / 0116000000823C00237022018, kuchuluka kwa mafilimu (kuphatikizapo madzi) a PVC Resin omalizidwa a PVC adayesedwa; Kukula kwa tinthu tating'onoting'ono kwa PVC Retun adayesedwa; Morphoology ya PVC Irin Tizilomboti zinkawonedwa pogwiritsa ntchito ma microskopu a elekitopu.

Zotsatira zitatu ndi zokambirana

3.

Press 2. Malinga ndi njira yoyeserera yofotokozedwa mu 4, gulu lirilonse la ma pvc omalizira litayesedwa, ndipo zotsatira zake zikuwonetsedwa mu tebulo 2.

Zotsatira ziwiri zotsatira zamagulu osiyanasiyana

Itha kuwoneka kuchokera pagome 2: Chiwerengero chowoneka, chiwerengero cha mafayilo ndi kuwonera kwa pulasitiki ndi chowongolera cha PVC ali pafupi ndi kugwiritsa ntchito ma cellose oyesedwa pang'ono; Zogulitsa zomwe zimapezeka pogwiritsa ntchito nyumba zapakhomo hydroxpyll methylcellulose forla pa tinthu kukula kwa tinthu tating'onoting'ono.

Chithunzi 1 chikuwonetsa zithunzi za SEM zopangira mapulogalamu a PVC zopezeka pogwiritsa ntchito hydroxypropyl methylcelulose.

(1) -Patumizidwe Hydroxypropyl

(2) -

Chith. 1 sem ya mateini opangidwa mu 10-l polymerizer pamaso pa hydroxypropyll methyl celyiluse

Itha kuwoneka kuchokera pa Chithunzi 1 kuti mawonekedwe a pamwamba a PVC Returecles omwe amapangidwa ndi omwe amamwa cellulose osiyanasiyana ndi ofanana.

Kuwerenga, kumatha kuwoneka kuti kuweta kwa hydroxypyllulose oyesedwa mu pepalali ali ndi kuthekera kobwezeretsa kunja hydroxygyuulose.

3.

Chifukwa cha mtengo waukulu komanso chiopsezo cha mayeso opangira, chiwembu chokwanira cha mayeso ochepa sichingagwiritsidwe ntchito mwachindunji. Chifukwa chake, chiwembucho chimawonjezera pang'onopang'ono kuchuluka kwa nyumba ya pabanja hydroypropyl methylcellulose mu formula amatengedwa. Zotsatira zoyeserera za batch iliyonse zimawonetsedwa mu tebulo 3. Zowonetsedwa.

Gome 3 Kuyeserera kwa ma batchi osiyanasiyana

Itha kuwoneka kuchokera pagome 3 kuti kugwiritsidwa ntchito kwa boma hydroygyllose pang'ono pang'onopang'ono mpaka meth yanyumba hydroxypyulose m'malo mwa methylcelulose. Zizindikiro zazikulu monga mapiritsi apulasikiriri osasinthasintha kwambiri, zomwe zikuwonetsa kuti ma hydroxygyulose omwe amasankhidwa papepala ili amatha kusintha ma hydroxygyuloull popanga.

Mapeto

Kuyesa kwa nyumbahydroxypropyl methyl cellulosePa gawo laling'ono la 10 l limawonetsa kuti ili ndi kuthekera kuti isinthe hydroxypropyl methy cellose; Zotsatira zoyeserera zopanga zimawonetsa kuti pampando wa Hydroxpyl wa methyl amagwiritsidwa ntchito pa pvc restin kupanga ma pvc studin ndikugulitsa methy celluse. Pakadali pano, mtengo wa celluunt yapanyumba pamsika ndi yotsika kuposa yomwe imalowetsa pa cellulose. Chifukwa chake, ngati ma cellulose apanyumba amagwiritsidwa ntchito popanga, mtengo wa zothandizira opanga zitha kuchepetsedwa kwambiri.