Hydroxyprupyl methylcellose (HPMC) Iyo Polymer yakasikwa yakaunganidzwa yakashandiswa zvakanyanya mukuvaka, mushonga, chikafu uye mamwe minda. Muindasitiri yeComent
1. Basic maitiro uye mechanism yekuita yeHPMC
HPMC chinhu chemakemikari chakawanikwa nekugadzirisa cellulose kuburikidza nejasi, hydroxypruslation uye methylation. Yayo molecular chimiro inosanganisira akawanda hydrophilic uye hydrophobic mapoka, ayo anogonesa kutamba maronda akawanda mumasimendi masisitimu. HPMC inotamba izvo zvinotevera mabasa mu coment:
Kuita kwakasimba
HPMC ine simba rakasimba uye rinogona kuvandudza zvakanyanya zvevisiko zve coment paste, vachiita kuti musanganiswa wekusanganiswa wakawanda panguva yekusanganisa uye kudzivisa kuoma kana kuti. Izvi zvakakosha zvekuvandudza mhizha uye kugadzikana kweiyo coment paste, kunyanya mune yakakwirira-mashandiro emisangano kana imwe zvinhu zvinoda zvekushandiswa, ichiona kuti inozadza chiumbwa chiri nani uye ine density yakakwira.
Kuvandudza Kuchengetwa Kwemvura
HPMC inogona kunyatso kudzora huwandu hwemvura mudenga yemvura muComent Paste uye kunonoka iyo yekutanga nguva yekuisa yeiyo simende. Kunyanya mukudziya kwakanyanya kana kwakaoma nzvimbo, inogona kuchengetedza yakanyoroveswa yeiyo coment paste uye kudzivirira nguva yekuomesa, nekukasira kugadzirisa maitiro ekuvaka. Kuchengetwa kwemvura inzira yakakosha mune yekuvaka maitiro ezvemument uye zvinogona kudzivirira kuumbwa kwemaza.
Kuvandudza kufambisa uye kusimudzira fluidity
Zvimwe zvemakemikari zvinowedzera zvinowanzowedzerwa kuComent paste, senge polymers, mineral admture, etc., izvo zvinogona kukanganisa iyo fluiliity yeSEENT PASTE. HPMC inogona kuwedzera simba rekubatanidza kwesimbe, kugadzira iyo slurry yakawanda plastiki uye fluid, nekukasira kugadzirisa maitiro ekuvaka. Mukuwedzera, HPMC inogona zvakare kuwedzera kudenha pakati pechigadzirwa uye zvimwe zvekuvakisa (sejecha uye gravel) uye kuderedza chiitiko chekusaririra.
Kuvandudza Crack Kudzivisa
Sezvo kugadzikana Kunyanya muchikamu chekutanga apo Simba reSimende harisi kuzosvika padanho rakakwana, zvinyorwa zvemasimende zvinotsausa. Nekushandisa HPMC, iyo shrinkage huwandu hwesimende inogona kuderedzwa uye iyo yekupaza fomu inokonzerwa nekurasikirwa kwemvura nekukurumidza kunogona kuderedzwa.
2. Mhedzisiro yeHPMC mune coment application
Kuvandudza Kusvibira Kubata
Iko kukonzeresa mhedzisiro yeHPMC kunoita kuti SEMENT SATTE SEATTE SEICLE. Zvemhando dzakasiyana dzepamendi (dzakadai seyakajairika portland simende, nekukurumidza-kupisa simende ,, hpmc inogona kuongorora iyo slutuity yeiyo slurry uye inofambisa ichidurura panguva yekuvaka. Mukuwedzera, HPMC inogona kuita sette pastte yakawanda yakagadzikana panguva yekuvaka, kuderedza mhepo mafambiro, uye kugadzirisa hunhu hwekuvaka.
Kuvandudza Simba reSimba
Kuwedzerwa kweHPMC kunogona kuvandudza mashandiro ebasa rechimende kune imwe nhanho. Inoshandura kugoverwa kwemvura musi wemvura, inosimudzira iyo yunifomu yekuita simende, uye nekudaro inowedzera simba rekupedzisira rekupedzisira. Mune zvinoshandiswa zvinoshanda, kuwedzera huwandu hwakakodzera hweHPMC kunogona kusimudzira iyo yekutanga hydration maitiro yeiyo simende uye kugadzirisa iyo inomanikidza, inoshanduka uye ine simba uye yakasarudzika simba.
Kuvandudzwa Kugadzika
Kuwedzerwa kweHPMC kunobatsira kuvandudza kujairwa kwesimendi. Kunyanya apo simende iri kuvhenekerwa nenzvimbo dzakashatisa (senge acid, Alkali, salkali, etcine, etcekuva 1), hpmc inogona kuwedzera kuramba kwesimendi, nekudaro nekuwedzera hupenyu hwebasa remasimendi. Mukuwedzera, HPMC inogona kuderedza kupokana kwe capilly yemasimende uye kuwedzera dentity ye simenti, nekudaro ichidzikisa huwandu hwayo hwekushora munzvimbo dzine hutsinye.
Kuvandudza Chemamiriro ekunze Scaptability
Mumamiriro ezvinhu akawandisa, kuita kwesimende kunowanzo kukanganiswa nekuchinja kwekushisa uye humidity. HPMC inogona kunonoka nguva yekuisa simende slurry uye kuderedza matambudziko anokonzerwa nekukurumidza kuoma kana kunyanyisa hydration. Naizvozvo, zvakanyatsokodzera nzvimbo dzekuvaka nekudziya kwakanyanya, tembiricha yakaderera uye nekushomeka kukuru.
3. Kushandisa kweHPMC
Kunyangwe kushandiswa kweHPMC mumasumbi kunogona kugadzirisa zvakanyanya kuita kwayo, kushandiswa kwayo kunoda kuchenjera, kunyanya muhuwandu hwakawedzerwa. Kuwedzeredza kweHPMC kunogona kukonzera iyo zvikwangwani yeiyo sument pasita yakanyanya kukwirisa, zvichikonzera kusaenzana kwekusanganisa kana maitiro ekuvaka. Kazhinji, huwandu hweHPMC hunowedzera hunofanirwa kudzorwa pakati pe0.1% uye 0.5% yeiyo simende, uye kukosha kwakananga kunoda kugadziriswa zvinoenderana neiyo chaiyo simende mhando, nzvimbo yekushandisa uye yekuvaka uye yekuvaka.
Akasiyana masosi, madimikira uye madhigiriji ekugadzirisaHpc Inogona zvakare kuve nemhedzisiro dzakasiyana pamasimendi. Naizvozvo, kana uchisarudza HPMC, zvinhu zvakaita sehuremu hwemanyorerwe, hydroxyprusyl uye methylation degree zvinofanirwa kutariswa zvakanyatsonaka kuti uwane zvakanakisa kugadzirisa. Maitiro.
Semunhu akakosha simendi modifier, kusagadzikana ®hpmc zvakanyanya anovandudza basa rekushanda, simba, kushandurwa kwezvakatipoteredza kwesimendi nekuvandudza kuchengetwa kwemvura, kuvandudza kudenha uye kusimudzira kudzikama. Chishandiso chayo chakashanda muindasitiri yeiyo chisingavhenekesa kuita kwesimbe Sezvo mapurojekiti ekuvaka anoenderera mberi nekuwedzera zvavanoda pakuita zvinhu, HPMC yakashandiswa zvinoshandiswa pakushandisa muindasitiri yeSementi uye icharamba iri yakakosha yekementi yekugadzirisa.
Kutumira Nguva: Jan-16-2025