Hydroxypropyl methylcellulose (HPMC) isiri-ionic cellulose ether yakagadzirwa kubva kune yakasikwa polymer material cellulose kuburikidza nehurongwa hwemakemikari maitiro. Hydroxypropylmethylcellulose (HPMC) ipfumbu chena isinganhuhwi, isina muchetura inogona kunyungudutswa mumvura inotonhora kuti iite sparent viscous solution. Iine maitiro ekukora, kusunga, kuparadzira, emulsifying, firimu-kuumba, kumisa, adsorbing, gelling, pamusoro pekushanda, kuchengetedza unyoro nekudzivirira colloid.
HPMC inoshandiswa zvakanyanya mukuvaka, machira, ekugadzira resin, ceramics, mushonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. HPMC inogona kukamurwa kuita giredhi rekuvaka, giredhi rekudya uye giredhi remishonga zvinoenderana nechinangwa. Parizvino, zvizhinji zvezvigadzirwa zvepamba ndezvekuvaka giredhi. Mugiredhi rekuvaka, putty poda inoshandiswa muhombe, inenge 90% inoshandiswa kune putty poda, uye imwe yasara inoshandiswa simende dhaka uye glue.
Cellulose ether isiri-ionic semi-synthetic yakakwira molecular polymer, inonyungudika mumvura uye inonyungudika.
Izvo zvinokonzerwa nemaindasitiri akasiyana zvakasiyana. Semuyenzaniso, mune makemikari ekuvaka zvinhu, ine zvinotevera komputa mhedzisiro:
①Mushandi wekuchengetedza mvura, ②Thickener, ③Leveling chivakwa, ④Firimu kugadzira zvinhu, ⑤Binder
Mune polyvinyl chloride indasitiri, iri emulsifier uye dispersant; muindasitiri yemishonga, ibhinder uye inononoka uye inodzorwa kuburitsa framework material, etc. Nokuti cellulose ine zvakasiyana-siyana zvinokonzerwa nemagetsi, kushandiswa kwayo Munda wacho ndiwowo wakanyanyisa. Zvadaro, ini ndichatarisa kushandiswa uye kushanda kwe cellulose ether mune zvakasiyana-siyana zvekuvaka.
Application in wallputty
Mune putty poda, HPMC inoita mabasa matatu ekukora, kuchengetedza mvura uye kuvaka.
Kukora: Cellulose inogona kukobvu kumisa uye kuchengeta yunifomu yemhinduro kumusoro nekudzika, uye kuramba kudonha.
Kuvaka: Cellulose ine lubricating effect, iyo inogona kuita kuti putty powder ive nekuvakwa kwakanaka.
Kushandiswa mudhaka rekrete
Dhaka rakagadzirwa pasina kuwedzera mvura-inochengetedza gobvu rine simba rekumanikidza, asi midziyo isina kunaka inochengeta mvura, kubatana, kupfava, kubuda ropa kwakanyanya, kunzwa kusashanda zvakanaka, uye hazvigone kushandiswa. Naizvozvo, mvura-inochengetedza thickening zvinhu chinhu chakakosha cheyakagadzirira-yakasanganiswa dhaka. Mukongiri yedhaka, hydroxypropyl methyl cellulose kana methyl cellulose inowanzosarudzwa, uye mwero wekuchengetedza mvura unogona kuwedzerwa kusvika kupfuura 85%. Nzira yekushandiswa mukrete yedhaka ndeyekuwedzera mvura mushure mokunge poda yakaoma yakasanganiswa. Kuchengetedzwa kwemvura kwakakwirira kunogona kunyorovesa simende zvizere. Yakawedzera kusimba kwechisungo. Panguva imwecheteyo, kusimba uye kugera simba kunogona kuvandudzwa zvakakodzera. Kunyanya kunatsiridza maitiro ekuvaka uye kuvandudza kushanda zvakanaka.
Kushandiswa mukunamatira tile
1. Hydroxypropyl methylcellulose tile adhesive inonyanya kushandiswa kuchengetedza kukosha kwekufanonyudza matiles mumvura.
2. Paste yakarongeka uye yakasimba
3. The namira ukobvu iri 2-5mm, kuchengetedza zvinhu uye nzvimbo, uye kuwedzera decoration nzvimbo
4. Izvo zvekutumira zvehunyanzvi zvinodiwa zvevashandi hazvina kukwirira
5. Hapana chikonzero chekugadzirisa nemuchinjikwa zvidimbu zvepurasitiki zvachose, iyo paste haizowi pasi, uye kunamatira kwakasimba.
6. Hakuzove nekunyanyisa slurry mumajoini ezvidhinha, izvo zvinogona kudzivirira kusvibiswa kwenzvimbo yezvidhinha.
7. Zvidimbu zvakawanda zvematairi eceramic zvinogona kunamirwa pamwe chete, kusiyana nechidimbu-chidimbu saizi yekuvaka simende dhaka.
8. Iyo yekuvaka inokurumidza kukurumidza, inenge 5 nguva inokurumidza kupfuura sement mortar posting, kuchengetedza nguva nekuvandudza kushanda kwekushanda.
Kushandisa mune caulking agent
Kuwedzerwa kwe cellulose ether kunoita kuti ive yakanaka kumucheto adhesion, yakaderera shrinkage uye yakakwirira abrasion resistance, iyo inodzivirira nheyo yezvinhu kubva pakukuvadzwa kwemichina uye inodzivisa kuipa kwekupinda kwemvura pachivako chose.
Kushandisa mune self-leveling zvinhu
Dzivirira kubuda ropa:
Inotamba basa rakanaka mukumisa, kudzivirira slurry deposition uye kubuda ropa;
Chengetedza kufamba uye:
Chigadzirwa chakaderera viscosity hachikanganisa kuyerera kwe slurry uye iri nyore kushanda nayo. Iyo ine kumwe kuchengetedza kwemvura uye inogona kuburitsa yakanaka pamusoro pekuita mushure mekuzvimisa-leveling kudzivirira kutsemuka.
Kushandiswa kwekunze kwemadziro ekudzivirira dhaka
Muchinyorwa ichi, cellulose ether inonyanya kuita basa rekubatanidza uye kuwedzera simba, zvichiita kuti dhaka rive nyore kupfeka uye kuvandudza kushanda zvakanaka. Panguva imwecheteyo, ine simba rekudzivisa kurembera. Mutswe kuramba, kunatsiridza pamusoro pemhando, kuwedzera bond simba.
Kuwedzerwa kwehydroxypropyl methylcellulose zvakare kwakave nekuderera kukuru kwemhedzisiro pamusanganiswa wedhaka. Nekuwedzera kwehuwandu hweHPMC, nguva yekugadzika kwedhaka inowedzera, uye huwandu hweHPMC hunowedzerwawo maererano. Nguva yekugadzika yedhaka yakaumbwa pasi pemvura yakareba kudarika yakaumbwa mumhepo. Ichi chimiro chakanakira kupomba kongiri pasi pemvura. Itsva simende dhaka yakasanganiswa nehydroxypropyl methylcellulose ine yakanaka yakabatana zvivakwa uye inenge isina mvura inobuda.
Kushandiswa mu gypsum mortar
1. Kuvandudza chiyero chekupararira kwegypsum base: Kuenzaniswa neiyo yakafanana hydroxypropyl methylcellulose ether, chiyero chekupararira chinowedzera zvakanyanya.
2. Minda yekushandiswa uye dosage: light bottom plastering gypsum, iyo yakakurudzirwa dosage i2.5-3.5 kg/ton.
3. Yakanakisa anti-sagging performance: hapana sag kana imwe-pass kuvaka inoiswa mumatanda makobvu, hapana sag kana yakashandiswa kweanopfuura maviri anopfuura (kupfuura 3cm), yakanakisa plastiki.
4. Yakanakisa kugadzirwa: nyore uye yakatsetseka kana yakarembera, inogona kuumbwa panguva imwe chete, uye ine purasitiki.
5. Yakanakisa kuchengetwa kwemvura mwero: kurebesa nguva yekushanda kwegypsum base, kunatsiridza kupikisa kwemamiriro ekunze kwegypsum base, kuwedzera simba rekubatanidza pakati pegypsum base uye base layer, yakanakisa wet bonding performance, uye kuderedza kumhara madota.
6. Kubatana kwakasimba: Inokodzera marudzi ose egypsum base, kuderedza nguva yekunyura yegypsum, kuderedza kuomeswa kwe shrinkage rate, uye nzvimbo yemadziro haisi nyore kuvhara uye kuputika.
Kushandiswa kweiyo interface agent
Hydroxypropylmethylcellulose (HPMC) uye hydroxyethylmethylcellulose (HEMC) anoshandiswa zvakanyanya zvekuvaka,
Kana yashandiswa semumiriri wemukati nekunze madziro, ine zvinotevera maitiro:
-Zviri nyore kusanganisa pasina mapundu:
Nekusanganiswa nemvura, kupesana panguva yekuomeswa kunoderedzwa zvakanyanya, zvichiita kuti kusanganiswa kuve nyore uye kuchengetedza nguva yekusanganisa;
- Kuchengetedzwa zvakanaka kwemvura:
Zvinonyanya kuderedza hunyoro hunobatwa nemadziro. Kuchengetwa kwemvura kwakanaka kunogona kuita kuti nguva yakareba yekugadzirira simende, uye kune rumwe rutivi, inogonawo kuva nechokwadi chokuti vashandi vanogona kukwenya rusvingo putty kakawanda;
-Kugadzikana kwekushanda kwakanaka:
Kuchengetwa kwemvura kwakanaka munzvimbo yekupisa yepamusoro, yakakodzera kushanda muzhizha kana nzvimbo dzinopisa.
- Kuwedzera kwemvura zvinodiwa:
Zvinonyanya kuwedzera kudiwa kwemvura kwezvinhu zveputty. Inowedzera nguva yebasa yeputty pamadziro, kune rumwe rutivi, inogona kuwedzera nzvimbo yekuputira yeputty uye kuita kuti fomu yacho iwedzere mari.
Kushandisa mu gypsum
Parizvino, zvigadzirwa zvegypsum zvakajairika kupurasita gypsum, bonded gypsum, inlaid gypsum, uye mataira anonamira.
Gypsum plaster ndeyemhando yepamusoro yekupurasita zvinhu zvemukati madziro uye sirin'i. Rusvingo rwakanamwa narwo rwakanaka uye rwakatsetseka, harurasi upfu, rwakasungirirwa zvakasimba pahwaro, harina kuputika uye kudonha, uye rine basa rinopisa moto;
Adhesive gypsum imhando nyowani yekunamira yekuvaka mabhodhi emwenje. Yakagadzirwa ne gypsum sechinhu chekutanga uye zvakasiyana-siyana zvinowedzera.
Inokodzera kubatana pakati peakasiyana inorganic kuvaka madziro emidziyo. Iyo ine hunhu hwekusina-chepfu, isingaravike, simba rekutanga uye nekumisikidza kuseta, uye yakasimba kubatana. Icho chinhu chinotsigira mapuranga ekuvaka uye kuvaka block;
Gypsum caulk igap filler pakati pegypsum board uye yekugadziridza filler yemadziro uye makatsemuka.
Izvi zvigadzirwa zvegypsum zvine mutsara wemabasa akasiyana. Pamusoro pebasa regypsum uye mafirita ane hukama, nyaya yakakosha ndeyekuti iyo yakawedzera cellulose ether additives inoita basa rinotungamira. Nekuti gypsum yakakamurwa kuita anhydrous gypsum uye hemihydrate gypsum, gypsum yakasiyana ine mhedzisiro yakasiyana pakuita kwechigadzirwa, saka kukora, kuchengetwa kwemvura uye kudzoreredza kunotarisisa kunaka kwezvinhu zvekuvaka gypsum. Dambudziko rinowanzoitika rezvinhu izvi nderokuchera uye kuputika, uye simba rekutanga harigoni kusvika. Kugadzirisa dambudziko iri, ndiko kusarudza rudzi rwe cellulose uye nzira yekushandiswa kwekomboni ye retarder. Panyaya iyi, methyl kana hydroxypropyl methyl 30000 inowanzosarudzwa. -60000cps, iyo yakawedzerwa mari iri pakati pe1.5 ‰–2 ‰, iyo cellulose inonyanya kushandiswa kuchengetedza mvura uye kudzoreredza lubrication.
Zvisinei, hazvibviri kuvimba ne cellulose ether se retarder, uye zvakakosha kuwedzera citric acid retarder kusanganisa uye kushandisa pasina kukanganisa simba rekutanga.
Kuchengetwa kwemvura kunowanzo reva kuti yakawanda sei mvura inorasika yega pasina kutorwa kwemvura kunze. Kana madziro akanyanya kuoma, kunyura kwemvura uye kubuda kwechisikigo pachigadziko kuchaita kuti zvinhu zvirasikirwe nemvura nekukasira, uye kuputika nekutsemuka kuchaitika zvakare.
Iyi nzira yekushandiswa inosanganiswa nehupfu hwakaoma. Kana iwe ukagadzirira mhinduro, tapota tarisa kune nzira yekugadzirira yemhinduro.
Kushandisa mu latex pendi
Muindasitiri yependi ye latex, hydroxyethyl cellulose inofanira kusarudzwa. Iyo yakajairwa yepakati viscosity ndeye 30000-50000cps, iyo inoenderana nekutsanangurwa kweHBR250. Iyo yereferensi dosage inowanzoita 1.5 ‰ -2 ‰. Basa guru re hydroxyethyl mu latex pendi ndeyekukora, kudzivirira gelation ye pigment, kubatsira kupararira kwe pigment, kugadzikana kwe latex, uye kuwedzera viscosity yezvikamu, izvo zvinobatsira pakugadzirisa kushanda kwekuvaka. .
Nguva yekutumira: Zvita-13-2022