Chii chinonzi viscosity yakakodzera yehydroxypropyl methylcellulose (HPMC)?
Upfu hweputty hunowanzova 100,000 yuan, uye zvinodiwa zvemortar zvakakwira, uye 150,000 yuan inodiwa kuti zvive nyore kushandisa. Uyezve, basa guru reHPMC kuchengetedza mvura, richiteverwa nekukora. Muupfu hweputty, chero bedzi mvura iri kuchengetwa zvakanaka uye viscosity yakaderera (70,000-80,000), zvinogonekawo. Ehe, viscosity yakakwira, kuchengetedza mvura kuri nani. Kana viscosity ikadarika 100,000, viscosity inokanganisa kuchengetedza mvura. Hazvichanyanyi kukosha.
Ndedzipi nzira dzekunyungudutsa hydroxypropyl methylcellulose (HPMC)?
(1) Kuchena: Kunyange hazvo Baidu isingakwanise kuona kana HPMC iri nyore kushandisa, uye kana mishonga yekuchena ikawedzerwa panguva yekugadzira, hunhu hwayo huchakanganiswa. Zvisinei, zvigadzirwa zvakawanda zvakanaka zvine kuchena kwakanaka.
(2) Kupfava: Kupfava kweHPMC kunowanzova nemambure makumi masere nemembure zana, uye mambure zana nemakumi maviri ari mashoma. HPMC yakawanda inogadzirwa muHebei ine mambure makumi masere. Kupfava kunowedzera, kazhinji, ndiko kuri nani.
(3) Kutumira chiedza: isa hydroxypropyl methylcellulose (HPMC) mumvura kuti igadzire colloid yakajeka, uye tarisa kutumirwa kwayo kwechiedza. Kutumira chiedza kwakakura, zviri nani, zvichiratidza kuti hapana zvinhu zvakawanda zvinonyunguduka mairi. . Kupinda kwe vertical reactors kazhinji kwakanaka, uye kwe horizontal reactors kwakaipa, asi hazvirevi kuti mhando ye vertical reactors iri nani pane ye horizontal reactors, uye mhando yechigadzirwa inotsanangurwa nezvinhu zvakawanda. (4) Specific gravity: Kana gravity chaiyo yakakura, kurema kwayo kuri nani. Specificity yakakura, kazhinji nekuti zviri mu hydroxypropyl group mairi zvakakwirira, uye zviri mu hydroxypropyl group zvakakwirira, kuchengetedza mvura kuri nani.
Ndeipi basa guru rekushandisa HPMC mupudhi yeputty, uye inoitika nemakemikari here?
Muupfu hweputty, HPMC inoita mabasa matatu ekuwedzera kukora, kuchengetedza mvura uye kuvaka.
Kukora: Cellulose inogona kukobvurwa kuti irambe yakakora uye ichengetedze mvura yakafanana kumusoro nekudzika, uye ichidzivirira kudonha.
Kuchengetwa kwemvura: ita kuti upfu hweputty huome zvishoma nezvishoma, uye batsira ash calcium kuti iite chiito pasi pemvura.
Kuvaka: Cellulose ine simba rekuzora, izvo zvinogona kuita kuti putty powder ive nekuvaka kwakanaka. HPMC haibatanidzi mune chero maitiro emakemikari, asi inongobatsira chete. Kuwedzera mvura kuputty powder woiisa pamadziro ichemical reaction, nekuti zvinhu zvitsva zvinoumbwa. Kana ukabvisa putty powder pamadziro kubva pamadziro, woikuya kuita upfu, woishandisa zvakare, haizoshande nekuti zvinhu zvitsva (calcium carbonate) zvagadzirwawo.
Zvinhu zvikuru zviri muupfu hwecalcium yemumadota ndeizvi: musanganiswa weCa(OH)2, CaO uye huwandu hushoma hweCaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O ash calcium mumvura nemhepo Pasi pekushanda kweCO2, calcium carbonate inogadzirwa, nepo HPMC ichingochengeta mvura chete, ichibatsira kuita zviri nani kwecalcium yemumadota, uye haibatanidzwi mune chero chiito pachayo.
Hukama huripo pakati pekusimba kwemuviri nekupisa kweHPMC, chii chinofanira kutariswa pakushandisa kwayo?
Kusimba kweHPMC kunoenderana nekupisa, kureva kuti, kusimba kunowedzera sezvo kupisa kuchiderera. Kusimba kwechigadzirwa chatinowanzo taura nezvacho kunoreva mhedzisiro yekuyedzwa kwe2% yemvura inobuda pakupisa kwe20 degrees Celsius.
Mukushandiswa kwaro, zvinofanira kucherechedzwa kuti munzvimbo dzine musiyano mukuru wekupisa pakati pezhizha nechando, zvinokurudzirwa kushandisa viscosity yakaderera munguva yechando, izvo zvinonyanya kubatsira pakuvaka. Zvikasadaro, kana tembiricha yakaderera, viscosity ye cellulose ichawedzera, uye ruoko ruchanzwa rwakasimba pakukwesha.
Viscosity yepakati: 75000-100000 inonyanya kushandiswa pakuisa putty
Chikonzero: kuchengetedza mvura zvakanaka
Viscosity yakanyanya: 150000-200000 inonyanya kushandiswa pa polystyrene particle insulation mortar rabha upfu uye vitrified microbead insulation mortar.
Chikonzero: kusviba kwakanyanya, dhaka harisi nyore kudonha, richidonha, izvo zvinovandudza kuvaka.
Nguva yekutumira: Chivabvu-18-2023