Kugadziriswa kweputty uye gypsum powder nekubatanidza methylhydroxyethylcellulose (MHEC). MHEC is cellulose-based polymer inoshandiswa zvakanyanya mukuvaka zvinhu nekuda kwekuchengetedza kwayo mvura, kukora uye rheological zvivakwa. Ichi chidzidzo chakaongorora mhedzisiro yeMHEC pane akakosha ekuita hunhu hwe putty uye stucco, kusanganisira kushanda, kunamatira uye kuseta nguva. Zvakawanikwa zvinobatsira kuvandudza huwandu hwese uye kuwanikwa kwezvinhu izvi zvakakosha zvekuvaka.
suma:
1.1 Background:
Putty uye stucco zvinhu zvakakosha mukuvaka, zvinopa nzvimbo dzakatsetseka, kuvhara kusakwana, uye kuwedzera kunaka kwechivako. Izvo zvimiro zvezvinhu izvi, senge processability uye kunamatira, zvakakosha pakubudirira kwavo kushanda. Methylhydroxyethylcellulose (MHEC) yakakwezva kutarisisa kwayo kugona kwayo kuvandudza mashandiro ezvivakwa zvekuvaka.
1.2 Zvinangwa:
Chinangwa chikuru chaive chekudzidza mhedzisiro yeMHEC pazvinhu zveputty uye gypsum powder. Zvinangwa zvakanangana zvinosanganisira kuongorora mashandiro, simba rebhondi, uye kuisa nguva yekukwenenzvera kuumbwa kwezvinhu izvi.
ongororo yezvinyorwa:
2.1 MHEC mune zvekuvaka:
Zvidzidzo zvakapfuura zvakaratidza kuchinjika kweMHEC mukusimudzira kushanda kwezvinhu zvakasiyana-siyana zvekuvaka, zvinosanganisira simende-based mortars uye gypsum-based products. Kuongororwa kwemabhuku kunotsvaga nzira iyo MHEC inobata nayo kushanda, kuchengetedza mvura, uye kunamatira.
2.2 Putty uye plaster mabikirwo:
Kunzwisisa zvinongedzo uye zvinodiwa zveputty uye gypsum poda yakakosha pakugadzira musanganiswa unoshanda. Ichi chikamu chinoongorora magadzirirwo echinyakare uye chinotaridza nzvimbo dzekuvandudza mukuita nekuenderera mberi.
nzira:
3.1 Kusarudzwa kwezvinhu:
Kunyatsosarudzwa kwezvinhu zvakasvibirira, kusanganisira putty uye gypsum powder pamwe neMHEC, zvakakosha kuti uwane migumisiro inodiwa. Chidzidzo chacho chinotsanangura zvinotsanangurwa zvezvinhu zvakashandiswa uye chikonzero chekusarudza kwavo.
3.2 Kuedza dhizaini:
Chirongwa chekuyedza chakarongeka chakagadzirwa kuti chiongorore maitiro eakasiyana MHEC kutarisisa pazvinhu zve putty uye stucco. Makiyi ma paramita akadai sekushanda, simba rebhondi uye nguva yekumisikidza inoyerwa uchishandisa yakajairwa bvunzo nzira.
Mibairo nenhaurirano:
4.1 Kuvaka:
Kufurira kweMHEC pakushanda kweputty uye stucco kunoongororwa kuburikidza nemiedzo yakadai sekuyerera bhenji bvunzo uye slump test. Mhedzisiro yacho yakaongororwa kuti ione iyo yakakwana MHEC yekumisikidza iyo zviyero zvakagadziridzwa mashandiro pasina kukanganisa zvimwe zvivakwa.
4.2 Simba rekunamatira:
Kusimba kwechisungo cheputty uye stucco kwakakosha kune mabatiro avanoita kune akasiyana substrates. Kudhonza-kunze bvunzo uye zviyero zvesimba rezvisungo zvakaitwa kuti zviongorore mhedzisiro yeMHEC pakunamatira.
4.3 Seta nguva:
Kuisa nguva ndiyo yakakosha paramende inokanganisa mashandisirwo uye kuomeswa kweputty uye stucco. Ichi chidzidzo chakaongorora kuti kutarisisa kwakasiyana kweMHEC kunokanganisa sei nguva yekumisikidza uye kana paine huwandu hwakakwana hwakakodzera mashandiro anoshanda.
mukupedzisa:
Ichi chidzidzo chinopa ruzivo rwakakosha mukugadzirisa kweputty uye gypsum powders uchishandisa MHEC. Kuburikidza nekuongorora kwakarongeka kwemigumisiro yeMHEC pamusoro pekushanda, simba rezvisungo uye nguva yekuisa, chidzidzo chakaratidza kuumbwa kwakakwana kwekuvandudza kushanda kwese. Izvi zvakawanikwa zvinogona kubatsira kuvandudza zvivakwa zvekuvaka nekuwedzera kuita uye kusimba.
Nzira yeramangwana:
Tsvagiridzo yeramangwana inogona kuongorora kusimba kwenguva refu uye mamiriro ekunze eMHEC-akagadziridzwa putties uye stuccoes. Pamusoro pezvo, zvidzidzo pamusoro pekugoneka kwehupfumi uye scalability yeakagadziridzwa maumbirwo anogona kuwedzera kutsigira kushanda kwekushandisa kwezvinhu izvi muindasitiri yekuvaka.
Nguva yekutumira: Nov-24-2023