-
Ishishini lokwakha liyaqhubeka nokutshintsha, lifuna izixhobo ezintsha zokuphucula ukusebenza kweemortar zokwakha. Enye yezinto ezifumana ingqwalasela eninzi yivinyl acetate-ethylene (VAE) redispersible polymer powder (RDP). Le powder iguquguqukayo ibonakalise ukuba ixabiseke kakhulu ekuphuculeni...Funda ngokugqithisileyo»
-
Izincamathelisi zephepha lodonga zidlala indima ebalulekileyo ekusetyenzisweni ngempumelelo kunye nobude bexesha lephepha lodonga. I-Hydroxypropyl methylcellulose (HPMC) sisongezelelo esisebenziseka lula esisetyenziswa kakhulu ekwenzeni izincamathelisi zephepha lodonga ukuphucula iimpawu ezahlukeneyo, kubandakanya amandla okubopha, ukuqhubekeka nokusebenza kunye nokufuma...Funda ngokugqithisileyo»
-
A. Ifomula yokuncamathelisa iithayile: 1. Ulwakhiwo olusisiseko: Izincamathelisi zeethayile zihlala ziqulathe umxube wesamente, isanti, iipolymers kunye nezongezo. Iifomyula ezithile zinokwahluka ngokuxhomekeke kuhlobo lwethayile, isiseko kunye neemeko zokusingqongileyo. 2. Isincamathelisi sethayile esisekelwe kwisamente: Isamente yasePortland: Inika amandla okubopha...Funda ngokugqithisileyo»
-
Ukuveliswa kwee-mortars ezizilinganisayo ezisekelwe kwi-gypsum kufuna ukusetyenziswa kweentlobo ngeentlobo zezinto ezikrwada, nganye kuzo echaphazela iipropati ezithile zemveliso yokugqibela. Icandelo elibalulekileyo le-mortar ezizilinganisayo yi-cellulose ether, eyongeziweyo ebalulekileyo. I-mortar ezizilinganisayo ezisekelwe kwi-gypsum...Funda ngokugqithisileyo»
-
I-Polyanionic cellulose (PAC) sisixhobo esinyibilikayo emanzini esisetyenziswa kakhulu kwishishini leoyile negesi, ingakumbi kwi-fracturing fluid formulations. I-Hydraulic fracturing, eyaziwa ngokuba yi-fracking, yindlela yokuvuselela esetyenziselwa ukwandisa ukukhutshwa kweoyile negesi yendalo...Funda ngokugqithisileyo»
-
1. Ulwakhiwo lwekhemikhali: I-Formic acid (HCOOH): Yi-carboxylic acid elula enefomyula yekhemikhali i-HCOOH. Iqulathe iqela le-carboxyl (COOH), apho i-hydrogen incamathiselwe kwi-carbon kwaye enye i-oxygen yenza i-double bond ne-carbon. I-Sodium formate (HCCONA): Yityuwa yesodium ye...Funda ngokugqithisileyo»
-
Isishwankathelo: Kwiminyaka yakutshanje, iingubo ezisekelwe emanzini zifumene ingqalelo enkulu ngenxa yobuhlobo bazo kwindalo esingqongileyo kunye nomxholo we-volatible organic compound (VOC) ophantsi. I-Hydroxyethylcellulose (HEC) yipolymer esetyenziswa kakhulu emanzini kwezi fomyula, esebenza njengesithambisi sokwandisa ...Funda ngokugqithisileyo»
-
Isishwankathelo: Ishishini lokwakha lidlala indima ebalulekileyo ekubumbeni ihlabathi lanamhlanje, apho isamente isisiseko sokwakha. Kangangeminyaka, abaphandi kunye neenjineli baye baqhubeka bekhangela iindlela zokuphucula umgangatho kunye nokusebenza kwesamente. Enye indlela ethembisayo ibandakanya ukongezwa kokongeza...Funda ngokugqithisileyo»
-
Isishwankathelo: I-calcium formate, ityuwa ye-calcium ye-formic acid, ifumene ingqwalasela ebanzi njengesongezelelo sokondla kwiminyaka yakutshanje. Le khompawundi iyaziwa ngenxa yeenzuzo zayo ezininzi kwisondlo sezilwanyana, ukukhuthaza ukukhula, ukuphucula impilo, kunye nokuphucula ukusebenza ngokubanzi. Olu phononongo lupheleleyo lu...Funda ngokugqithisileyo»
-
ukwazisa Ishishini lokwakha lenze inkqubela phambili ebalulekileyo kwiminyaka yakutshanje, ligxile kakhulu ekuphuculeni ukusebenza, ukuqina kunye nokuzinza kwezixhobo zokwakha. IHydroxypropyl methylcellulose (HPMC) iye yaba sisongezelelo esisebenzisekayo kwizinto zokwakha ezisekwe kumgubo wegypsum...Funda ngokugqithisileyo»
-
Ii-starch ethers luhlobo oluhlengahlengisiweyo lwesitatshi oluye lwafumana ingqwalasela ebanzi kwizicelo ezahlukeneyo zoshishino ngenxa yokuguquguquka kwazo kunye neempawu zazo ezizodwa. Nangona isetyenziswa rhoqo kwi-adhesives ngenxa yamandla ayo okubopha, ukufaneleka kwayo kwiindawo ezinobushushu obuphezulu kuxhomekeke ...Funda ngokugqithisileyo»
-
yazisa: Intshayelelo emfutshane kwiHydroxyethyl Cellulose (HEC) kunye nokubaluleka kwayo kwiimveliso zasekhaya. Cacisa ukusetyenziswa kwezinto zokuncamathelisa kunye nezinto ezizinzisayo kwiimveliso ezahlukeneyo zabathengi. Icandelo 1: Izincamathelisi zeHEC Isishwankathelo: Chaza iHEC kunye neempawu zayo zeekhemikhali. Xoxa ngeempawu zokuncamathelisa zeHEC kunye...Funda ngokugqithisileyo»