Cellulose yomanga ndi chowonjezera chomwe chimagwiritsidwa ntchito popanga zomangamanga. Ma cellulose pomanga amagwiritsidwa ntchito kwambiri mumatope owuma a ufa. Kuphatikizika kwa cellulose ether ndikotsika kwambiri, koma kumatha kusintha kwambiri magwiridwe antchito a matope onyowa ndikukhudza kupanga matope. Kugwiritsiridwa ntchito kuyenera kuganiziridwa pakugwiritsa ntchito. Ndiye mawonekedwe a cellulose omanga ndi otani, ndipo ntchito yomanga ya cellulose yomanga ndi yotani? Ngati simukudziwa zambiri za kapangidwe ka cellulose ndikumanga, tiyeni tiwone limodzi.
Kodi mawonekedwe a cellulose omanga ndi otani:
1. Maonekedwe: ufa woyera kapena woyera.
2. Kukula kwa tinthu ting'onoting'ono; chiphaso cha 100 mauna ndi wamkulu kuposa 98,5%; chiphaso cha 80 mauna ndi chachikulu kuposa 100%.
3. Kutentha kwa carbonization: 280-300 ° C
4. Kuwoneka kowoneka bwino: 0.25-0.70 / cm3 (kawirikawiri pafupifupi 0.5g / cm3), mphamvu yokoka yeniyeni 1.26-1.31.
5. Kutentha kwamtundu: 190-200 ° C
6. Kuthamanga kwapamwamba: 2% yothetsera madzi ndi 42-56dyn / cm.
7. Zosungunuka m'madzi ndi zosungunulira zina, monga gawo loyenera la ethanol / madzi, propanol / madzi, trichloroethane, ndi zina zotero. Njira zamadzimadzi zimakhala pamtunda. Kuwonekera kwakukulu, magwiridwe antchito okhazikika, mawonekedwe osiyanasiyana azinthu ali ndi kutentha kosiyanasiyana kwa gel osakaniza, kusintha kwa solubility ndi mamasukidwe akayendedwe, kutsika kukhuthala, kusungunuka kwakukulu, mawonekedwe osiyanasiyana a HPMC ali ndi magwiridwe antchito osiyanasiyana, ndipo kusungunuka kwa HPMC m'madzi sikukhudzidwa. pa pH mtengo.
8. Ndi kuchepa kwa methoxyl, gel point imawonjezeka, kusungunuka kwa madzi kwa HPMC kumachepa, ndipo ntchito yapamwamba imachepanso.
9. HPMC imakhalanso ndi zizindikiro za kukulitsa mphamvu, kukana mchere, ufa wochepa wa phulusa, kukhazikika kwa PH, kusungirako madzi, kukhazikika kwazithunzi, kupanga mafilimu abwino kwambiri, komanso kukana kwa enzyme, dispersibility ndi kugwirizana.
Kodi njira yopangira cellulose yomanga ndi yotani:
1. Zofunikira pazigawo zoyambira: Ngati kumatira kwa khoma la m'munsi sikungathe kukwaniritsa zofunikira, kunja kwa khoma la m'munsi kuyenera kutsukidwa bwino, ndipo mawonekedwe ogwiritsira ntchito ayenera kugwiritsidwa ntchito kuti awonjezere mphamvu yosungira madzi. khoma ndikuwonjezera mphamvu yolumikizana pakati pa khoma ndi bolodi la polystyrene.
2. Sewerani mzere wowongolera: tulutsani mizere yowongoka komanso yowongoka yazitseko zakunja ndi mazenera, zolumikizira zowonjezera, zokongoletsa zokongoletsera, ndi zina zambiri pakhoma.
3. Khondekeni mawaya achitsulo m’makona aakulu (ngodya zakunja, ngodya zamkati) za makoma akunja a nyumbayo ndi malo ena ofunikira, ndi kupachika mizere yopingasa pamalo oyenera pansi lililonse kuti muwongolere kukwera ndi kusalala kwa nyumbayo. pepala la polystyrene.
4. Kukonzekera kwa matope omatira a polima: Nkhaniyi ndi matope omatira a polima okonzeka, omwe ayenera kugwiritsidwa ntchito molingana ndi zofunikira za mankhwalawa, popanda kuwonjezera zinthu zina, monga simenti, mchenga ndi ma polima ena.
5. Mangani nsalu ya gridi yogubuduzika: Malo onse owonekera pambali pa bolodi la polystyrene (monga zowonjezera zowonjezera, zolumikizira zomangira nyumba, zolumikizira kutentha ndi zina zonse mbali zonse, zitseko ndi mazenera) ziyenera kupakidwa ndi nsalu ya gridi. .
6. Zomatira polystyrene bolodi: Dziwani kuti odulidwa ndi perpendicular pamwamba bolodi. Kupatuka kwa kukula kuyenera kukwaniritsa zofunikira za malamulo, ndipo zolumikizira za bolodi la polystyrene zisasiyidwe pamakona anayi a khomo ndi zenera.
7. Kukonzekera kwa anangula: chiwerengero cha anangula ndi choposa 2 pa mita imodzi (kuwonjezeka mpaka 4 kwa nyumba zapamwamba).
8. Konzani pulasitala matope: Konzani pulasitala matope molingana ndi chiŵerengero choperekedwa ndi wopanga, kuti mukwaniritse muyeso wolondola, makina achiwiri oyambitsa, komanso ngakhale kusakaniza.
Pakati pa mitundu ya cellulose yomwe imagwiritsidwa ntchito pomanga, cellulose ether yomwe imagwiritsidwa ntchito ndi hydroxypropyl methylcellulose mumatope owuma a ufa ndi makamaka hydroxypropyl methylcellulose ether. Hydroxypropyl methylcellulose makamaka imagwira ntchito yosunga madzi, kulimbitsa komanso kupititsa patsogolo ntchito yomanga mumatope owuma.
Nthawi yotumiza: May-10-2023