Abin da Polycarboxylate superplasticizer monomer

(Abin da Polycarboxylate superplasticizer monomer)

Abin da Polycarboxylate superplasticizer monomer

Polycarboxylate superplasticizers (PCE) yana ba da kankare tare da babban ruwa mai ƙarfi, ƙarfi, da ɗorewa a ƙananan abun ciki, wanda ya inganta haɓakar masana'antar gini. Tsarin PCEs, kamar ƙungiyoyin aiki, jeri na monomer, kadarorin nauyin kwayoyin halitta, tsayin babban sarkar, da yawa na sarkar gefe, suna tasiri kai tsaye ga ruwa na manna siminti. Tsawon babban sarkar PCE yana samar da polymer tare da isassun ƙungiyoyin tallatawa akan barbashi na siminti. Sabanin haka, babban nauyin sarkar gefe yana samar da tsangwama mai karfi tsakanin farfajiyar siminti. Mafi kyawun PCE yana buƙatar abun ciki da daidaita daidaitattun anka da ƙungiyoyi masu hanawa, waɗanda aka nuna azaman jerin monomer tare da kashin baya. PCE polymers tare da babban rabon abinci na unsaturated carboxylic acid da macromonomer nasu mafi girma rabo na AAA da AAE monomer jerin (A wakiltar acrylic acid, E wakiltar isoprenyloxy polyethylene glycol ether) a cikin PCE polymers. Tasirin tsarin kwayoyin PCE akan tsarin ruwa da tsarin ruwa na man siminti ya kasance wurin bincike koyaushe. Babban abun ciki na unsaturated carboxylic acid na iya haifar da jinkirin hydration na manna siminti. A gefe guda, yana ba da babban caji mai yawa da ƙarfin motsa jiki don polymers na PCE. A halin yanzu, ya kamata a ba da garantin girman sarkar gefe don samar da polymers na PCE tare da tsangwama mai ƙarfi. Tsawon sarkar motsin motsi ν da aka gabatar a cikin Formula (1) muhimmin mahimmanci ne na nauyin kwayoyin halitta don polymers a cikin polymerization na radical mai ruwa, kuma yana daidai da daidaitaccen maida hankali na monomer [M] amma ya bambanta da tushen tushen maida hankali [I]. Tsawon sarkar motsin motsi ν zai bambanta tare da maida hankali na monomer [M] keɓance a ƙarƙashin ƙayyadaddun ƙaddamarwar ƙaddamarwa da zafin jiki. Anan, kd, kp, da kt an sanya su azaman ƙimar ƙaddamar da sarkar akai-akai, ƙimar yaɗa sarkar akai, da ƙimar ƙarewar sarkar, bi da bi.

Menene kaddarorin polycarboxylate superplasticizer?

Polycarboxylate superplasticizer wani nau'i ne na surfactant mai dauke da carboxyl copolymer da aka dasa a cikin kwayoyin halitta, kuma tsarinsa na musamman na kwayoyin halitta yana ba shi fa'idodi da yawa na musamman, kamar ƙarancin sashi, ƙimar rage ruwa mai yawa, haɓakar ƙarfin farkon farkon, gamsarwa mai gamsarwa. The isoprenyloxy polyethylene glycol ether dauke da 52 ethylene oxide (EO) raka'a tare da kwayoyin nauyi a kusa da 2400 g/mol (52IPEG) Oxiranchem, Liaoning, China ne ya samar. IPEG mai dauke da doguwar sarkar an karbe shi a cikin wannan binciken saboda gajeriyar nau'in yana da matukar kula da tawadar mole na acid carboxylic mara saturated zuwa macromonomers na IPEG. Acrylic acid (AA), ammonium persulfate (APS), da 3-mercaptopropionic acid (3-MPA) duk an saya su daga Sigma-Aldrich Chemie GmbH, Milwaukee, Jamus. Suna da kyawawan kaddarorin rage ruwa, ingantaccen inganci, da ƙarancin buƙatun sashi. Manyan masu rage ruwa, waɗanda aka fi sani da superplasticizers (SPs), su ne Polycarboxylate superplasticizer monomers da ake amfani da su a masana'antar gini a matsayin masu rarrabawa don dakatar da ma'adinai mai ruwa don canza kaddarorin sabbin abubuwa masu tauri. Ruwan ya ƙunshi bayani mai ruwa-ruwa na polyacrylic acid ko kuma copolymer na acrylic acid da sauran acid carboxylic unsaturated. Fitar da sinadarin fluoride ta siminti ɗan ƙaramin juzu'i ne (15-20%) na wanda aka fitar daga kayan kamar silicophosphate da simintin ionomer gilashi (GICs) (Anusavice, 1991). Idan kuna neman wani abu mai ƙarfi a bayansa, gwada babban superplasticizer, irin su Supercizer 2 ko Supercizer 7. Waɗannan samfuran suna ba da babban ƙarfi da wuri kuma har zuwa 40% ragewar ruwa.

Menene babban rashin amfani da simintin polycarboxylate?

Waɗannan siminti suna da amfani ga rawanin ƙarfe da ain-fused-to-metal rawanin da gadoji amma suna da ƙarancin ƙarfi fiye da zinc phosphate. Abubuwan da ba su da kyau na wannan abu sun haɗa da babban solubility da ƙananan taurin. Kaurin fim ɗin na iya zama matsala, musamman idan haɗuwa ba ta dace ba. Acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, aconitic acid, acetic acid, da sauransu. Mafi yawan sinadaran da aka fi amfani da su shine acrylic. Masu farawa da aka saba amfani da su sune hydrogen peroxide, ammonium persulfate, da farin foda. Superplasticizer zai iya rage abun ciki na ruwa yayin da ruwa / ciminti rabo ya kasance iri ɗaya kuma yana iya ƙara yawan aiki a daidai wannan ruwa / ciminti, rage siminti, da samar da ƙarfin farko. UltraTemp na wucin gadi polycarboxylate ciminti cikakke ne don ciminti rawanin wucin gadi, gadoji, inlays, onlays, da ƙaramin cikawa na ɗan lokaci. The hydrophilic, polycarboxylate sunadarai yana tabbatar da ƙananan fushi zuwa ɓangaren litattafan almara da hatimin inganci. Yana da ruwa mai narkewa har sai an saita don sauƙin tsaftacewa. Superplasticizers sune masu rage ruwa mai ƙarfi wanda ke ba da damar haɓakawa a cikin matsanancin damuwa na siminti ta hanyar rage girman w / c, raguwar abun ciki na siminti yayin da yake riƙe da ƙarfi iri ɗaya na ƙarfi ko aiki, haɓaka haɓakar kankare, da sauran tasirin.

Farashin Polycarboxylate superplasticizer monomer

Girman barbashi na polycarboxylate superplasticizer monomer girma da tsafta zai shafi Farashin samfurin, kuma ƙarar siyan zai iya shafar farashin Polycarboxylate superplasticizer monomer. Babban adadin adadi mai yawa zai zama ƙasa. Farashin Polycarboxylate superplasticizer monomer yana kan gidan yanar gizon mu na hukuma.

Polycarboxylate superplasticizer monomer maroki

Idan kana neman babban ingancin Polycarboxylate superplasticizer monomer, da fatan za a iya tuntuɓar mu da aika tambaya. (sales@cabr-concrete.com). Muna karɓar biyan kuɗi ta Katin Kiredit, T/T, West Union, da Paypal. TRUNNANO zai jigilar kayan ga abokan ciniki a ketare ta hanyar FedEx, DHL, ta iska, ko ta ruwa.

(Abin da Polycarboxylate superplasticizer monomer)