Ko te Putty he taonga hanga whare nui e whakamahia ana mo te whakataurite i te pakitara, a ko tana mahi ka pa ki te piri o te peita me te kounga o te hanga. I roto i te hanganga o te putty, he mea nui nga taapiri ether cellulose.Hydroxypropyl Methylcellulose (HPMC), hei tetahi o nga etera cellulose e whakamahia nuitia ana, ka taea te whakapai ake i te pokey, te mahi hanga me te pumau o te putty.
1. Nga ahuatanga taketake o Hydroxypropyl Methylcellulose
Ko te HPMC he polymer kore-katote wai-wairewa me te matotoru pai, te pupuri wai, te marara, te whakaemulsification me nga taonga hanga kiriata. Ko tona pokey ka pangia e te tohu whakakapinga, te tohu polymerization me nga tikanga memehatanga. Ko te wairewa aqueous o AnxinCel®HPMC e whakaatu ana i nga ahuatanga o te wai pseudoplastic, ara, ka piki te tere o te kutikuti, ka heke te pokey o te otinga, he mea tino nui ki te hanga putty.
2. Te paanga o te HPMC ki runga i te pokey putty
2.1 Te awenga matotoru
Ka hangaia e te HPMC he otinga pokey teitei i muri i te rewa ki te wai. Ko te kaha o te matotoru ka kitea i roto i nga waahanga e whai ake nei:
Te whakapai ake i te thixotropy o putty: Ka taea e te HPMC te pupuri i te putty i runga i te viscosity teitei i te wa e tu ana ki te karo i te paheke, me te whakaiti i te pokey i te wa e waruhia ana me te whakapai ake i te mahi hanga.
Te whakarei ake i te mahi o te putty: Ma te nui o te HPMC ka taea te whakapai ake i te whakahinuhinu o te putty, ka pai ake te kirikiri me te whakaiti i te aukati hanga.
Ka pa ki te kaha whakamutunga o te putty: Ko te whakapakeketanga o te HPMC ka marara te whakakii me nga mea sima i roto i te putty, ka karo i te wehewehe me te whakapai ake i te mahi whakapakeke i muri i te hanga.
2.2 Te awenga ki te tukanga whakamakuku
He tino pai te pupuri i te wai o te HPMC, ka taea te whakaiti i te tere o te whakaetonga o te wai i roto i te paparanga putty, na reira ka roa ake te wa whakamakuku o te putty i runga i te ciment me te whakapai ake i te kaha me te kapiti o te putty. Heoi, he nui rawa te pokey o te HPMC ka pa ki te uruhanga o te hau me te tere whakamaroke o te putty, ka iti ake te pai o te hanga. Na reira, me whakarite te nui o te HPMC i te kaha mahi i te wa e karo ana i nga paanga kino ki te wa whakapakeke.
2.3 Te hononga i waenga i te taumaha ngota o te HPMC me te pokey o te putty
Ko te teitei ake o te taumaha ngota o te HPMC, ka nui ake te pokey o tana wairewa wai. I roto i te putty, ko te whakamahi i te HPMC pokey teitei (pērā i te momo me te viscosity nui ake i te 100,000 mPa·s) ka tino pai ake te pupuri i te wai me nga taonga anti-sagging o te putty, engari tera pea ka heke te kaha o te mahi. Na reira, i raro i nga whakaritenga hanga rereke, me kowhiria te HPMC me te viscosity e tika ana kia taurite te pupuri wai, te mahi me te mahi whakamutunga.
2.4 Te awenga o te inenga HPMC ki te pokey putty
Ko te nui o te AnxinCel®HPMC ka taapirihia he paanga nui ki te pokey o te putty, a ko te nuinga o te waa kei waenga i te 0.1% me te 0.5%. Ina he iti te inenga o te HPMC, he iti te awe o te whakapawera ki te putty, a ka kore pea e taea te whakapai ake i te mahi me te pupuri wai. Ina he tiketike rawa te inenga, he nui rawa te pokey o te putty, ka piki ake te aukati hanga, ka pa ki te tere whakamaroke o te putty. Na reira, he mea tika ki te kowhiri i te nui o te HPMC kia rite ki te tauira o te putty me te taiao hanga.
Ko te Hydroxypropyl methylcellulose te whai waahi ki te whakapakeke, te pupuri wai me te whakapai ake i te mahi i roto i te putty. Ko te taumaha ngota, te tohu whakakapinga me te nui o te taapiriHPMCka pa ki te pokey o te putty. Ma te nui o te HPMC ka taea te whakapai ake i te mahi me te aukati wai o te putty, engari ko te taapiri nui ka piki ake te uaua o te hanga. Na reira, i roto i te tono pono o te putty, ko nga ahuatanga o te pokey me nga whakaritenga hanga o te HPMC me tino whakaarohia, me te whakarite tika i te tauira kia whiwhi ai i nga mahi hanga pai me te kounga whakamutunga.
Wā tuku: Feb-10-2025