Yintoni umlinganiselo we-HPMC Hydroxypropyl methyl cellulose kunye nesamente?
Udaka lokugquma ubunjineli obungangeni manzi, iimpawu zalo zixhomekeke kubunzima obulandelayo bezinto eziluhlaza ezenziweyo: Ikhonkrithi 30-340, ubunjineli bokwakha inkunkuma yezitena zomgubo 40-50, i-lignin fiber 20-24, i-calcium formate 4-6, i-hydroxypropyl methyl cellulose 7-9, i-silicon carbide powder 40-45, i-coldrude powder 40-45, i-coldrude powder 1, i-corown 20, i-corown hydruoxide I-10-12, idolophu enkulu eyomileyo ye-silt powder 30-35, umhlaba wesixeko saseDatong 40-45, i-aluminium sulfate 4-6, i-carboxymethyl Base starch 20-24, izinto ezilungisiweyo ze-nanotechnology carbon powder 4-6, amanzi 600-650; Udaka lwezobunjineli olungangeni manzi lwale mveliso lunobushushu obuqinileyo, ukumelana nomlilo, ukuqina okuqinileyo eludongeni, amandla acinezelayo, ukuqina kokusebenza, ukumelana nokuguga okuhle, ukukhuselwa kokusingqongileyo okuhle, ukunganyameki, ukumelana nokuqhekeka, ukuthintela ukuwa phantsi. Namhlanje siza kuthetha malunga ne-viscosity ye-hydroxypropyl methyl cellulose isisombululo se-aqueous zonke zikweziphi iinkalo? Masiyifunde ngokwenene.
1. Ubunzima bemolekyuli, ubushushu besisombululo esinamanzi, izinga lokusika kunye nendlela yokulinga ye-cellulose ether; 2. Ukuphakama kweqondo lokushisa kweglasi, ubukhulu besisindo se-molecular, i-viscosity yesisombululo iphezulu ngokwendalo; 3. Ukuphakama komxholo we-cellulose ether, i-viscosity ephezulu yesisombululo, ngoko ekuphunyezweni kwesicelo kufuneka sinikele ingqalelo kwisixa esifanelekileyo sokufakwa, ukuthintela ukufakwa kuphezulu kakhulu, kwaye kuchaphazela ngokuthe ngqo iimpawu zodaka lwesamente kunye ne-cement concrete; 4. Njengoninzi lwesisombululo, i-viscosity iya kuncipha kwakhona ngokunyuka kweqondo lokushisa, kunye nokuphezulu komxholo we-cellulose ether, ingozi enkulu yeqondo lokushisa; Ukongeza, isiphumo sangempela sokuqina sikwahluka ngokobungakanani bamanzi asetyenziselwa i-epoxy sement.
I-Hydroxypropyl methyl cellulose isisombululo se-viscosity yamanzi nayo ingasebenza njengekhonkco eliphambili kwiimpawu ze-ether yeselulosi, ukuphakama kwe-viscosity yesisombululo samanzi, izinto zayo ezityebileyo ze-epoxy zesamente zingcono, emva kweepropati ze-plate gelling, kodwa ukuba i-viscosity inkulu kakhulu, iya kulimaza i-epoxy materialability ngokukhawuleza kunye ne-epoxy. Ngokuphathelele udaka oluzilinganisayo olunomthamo ophezulu, i-viscosity ye-cellulose ether iya kuchazwa ukuba iphantsi.
I-cellulose ether isisombululo se-aqueous ngumzimba we-pseudoplastic, thina kwinqanaba lokugqibela lokubona izinga le-shear likhulu, i-viscosity incinci.
Ngoko ke, ukushwankathela kukuba: ukudityaniswa kodaka lwesamente kuya kuncitshiswa ngamandla angaphandle, okuluncedo kulwakhiwo lobunjineli ngasemva, kodwa i-cellulose etere isisombululo samanzi kwimeko yexabiso eliphantsi kakhulu loxinaniso, luya kwenzeka iimpawu ze-non-Newtonian liquid, ngokuchaseneyo, xa ixabiso loxinaniso linyuswa, isisombululo samanzi siya kwenzeka iimpawu zolwelo lwe-pseudoplastic.
Ukugcinwa kwamanzi kwi-hydroxypropyl methyl cellulose yenye yezinto eziphambili ze-hydroxypropyl methyl cellulose. Umyinge wokuphuphuma kwamanzi kudaka oluxutyiweyo kunye neemveliso ezisekelwe kwi-plaster zichatshazelwa ngubushushu begesi, ubushushu kunye noxinzelelo. Ke ngoko, kumaxesha ahlukeneyo onyaka, kunye ne-hydroxypropyl methyl cellulose ubungakanani obufanayo bokusebenza kwamanzi emveliso kunomahluko othile.
Ngokuqhelekileyo, i-viscosity ephezulu ye-hydroxypropyl methyl cellulose kukuba, eyona nto ingcono umphumo wokugcinwa kwamanzi kuya kuba, kodwa umonakalo we-viscosity ekugcinweni kwamanzi kuya kuncitshiswa emva kokuba i-viscosity idlula i-100,000 Mpa. s. Xa i-viscosity ye-HYDROXYpropyl methyl cellulose idlula i-100,000, izinga lokugcinwa kwamanzi lingaphuculwa kakhulu ngokunyusa inani le-hydroxypropyl methyl cellulose.
Kwinkqubo yokwakhiwa kweenkcukacha, umphumo wokugcina amanzi we-slurry unokulungiswa ngokulungelelanisa umlinganiselo we-hydroxypropyl methyl cellulose. Iimveliso zeHydroxypropyl methyl cellulose zinokucombulula ngempumelelo ingxaki yokugcinwa kwamanzi phantsi kobushushu obuphezulu obuqhubekayo. Kwixesha eliqhubekayo lobushushu obuphezulu, ngokukodwa kwiindawo ezishushu kunye nezibhokoxayo kunye nokwakhiwa kwechromatography kwicala lelanga, umgangatho ophezulu we-HYDROXYpropyl methyl cellulose uyadingeka ukuphuhlisa ukugcinwa kwamanzi kwi-slurry.
Umgangatho ophezulu we-hydroxypropyl methyl cellulose, unokulinganisela okulungileyo, i-high-butyl kunye ne-hydroxypropyl ioksijini amaqela asebenzayo kunye ne-fiber molecular chain structure joint joint distribution, inokuphuhlisa iqela le-methyl aldehyde kunye ne-oksijini, kunye nomgangatho wamanzi we-digital form covalent bonds ingaba ngamanzi kunye namanzi okusasazwa, emva koko ilawule ngokufanelekileyo ukukhuphuka kwamanzi okunyuka kwemozulu, okubangelwa ngubushushu obuphezulu bamanzi.
Umgangatho ophezulu we-hydroxypropyl methyl cellulose unokulingana nomhlaba okhululekileyo kunye norhwebo kudaka oluxubeneyo kunye neemveliso ze-plaster, kunye nawo onke amasuntswana aqinileyo i-cyst, emanzi, epholile, kwaye enze umaleko wefilimu, ukufuma okuphakathi kwexesha elide ukukhulula ngokukhawuleza ukusuka kwisiseko, kunye nokuqala kwe-organic compound admixture ye-hydration reaction, emva koko iqinisekisa ukuhambelana kwamandla ekrwada kunye namandla alishumi. Kwinkqubo yokwakhiwa kwehlobo lobushushu obuphezulu, ke ngoko, ukufikelela kwisiphumo samanzi, kufuneka kuhambelane neresiphi yesixa esithile kunye nomgangatho weemveliso ze-hydroxypropyl methyl cellulose, kungenjalo, kuya kubonisa ukudinwa ngokukhawuleza kwaye kubangele ukungonelanga kwe-hydration, ukunciphisa amandla oxinzelelo, ukwahlukana, ukuvela kweempawu ezifana negubu elingenanto kunye namathandabuzo, kunye nokudityaniswa nobunzima bokwakha umsebenzi. Njengoko ubushushu behla, isixa se-hydroxypropyl methyl cellulose sinokuncitshiswa kancinci kwaye isiphumo esifanayo sokugcina amanzi sinokufezekiswa.
Ukuba i-cellulose ether ayidityaniswanga, i-chromatography yodaka lwesamente entsha iya komisa ngokukhawuleza, ukwenza ikhonkrithi ayikwazi ukuhlanjululwa ngendlela eqhelekileyo, okubangela ukuba udaka lwesamente lungabi nzima kwaye lufumane ukunamathela okungcono. Kwangaxeshanye, ukongezwa kwe-ether ye-cellulose kwenza udaka lwesamente lube ne-ductility elungileyo kunye nokuguquguquka, kwaye luphucula amandla oxinzelelo olubambeneyo lodaka lwesamente.
I-1, i-hydroxypropyl methyl cellulose ubukhulu beqhekeza
Ubungakanani besuntswana le-ether yeselulosi buyawonakalisa ukunyibilika kwayo. I-ether ye-cellulose ecolekileyo kukuba, isantya sokubola kwayo ngokukhawuleza emanzini kwaye iphezulu iimpawu zayo zokugcina amanzi. Ngoko ke, ubukhulu be-particle ye-cellulose ether kufuneka bufakwe kuphando lwesinye seempawu zayo. Ngokubanzi, i-cellulose ether particle size of 80 mesh based on.
2, i-hydroxypropyl methyl cellulose yomile ngaphandle komlinganiselo womxhuzulane
I-manic eyomileyo ayikho ireyithi yomxhuzulane, ibhekisa kubushushu obuthile be-manic cellulose ether eyomileyo, ukulahleka komgangatho weekhemikhali kubalelwa kwipesenti yesampulu yokuqala yokwakheka. Ngomgangatho othile we-ether cellulose kwindawo eyomileyo ngaphandle kweqondo lomxhuzulane liphezulu kakhulu, liya kunciphisa amacandelo afanelekileyo kwi-ether cellulose, ukulimaza umphumo wangempela wokusetyenziswa kweenkampani ezisezantsi, kodwa nokuphucula iindleko zokuthenga. Ngokuqhelekileyo i-ether ye-cellulose eyomileyo ngaphandle kweqondo lomxhuzulane ayiyi kudlula i-5.0%.
3, i-hydroxypropyl methyl cellulose i-potassium thiocyanate ash
Kuba umgangatho othile cellulose etere kumxholo uthuthu kakhulu, iya kunciphisa ietere cellulose kumacandelo afanelekileyo, umonakalo isiphumo yokwenene yokusetyenziswa iinkampani ezantsi, cellulose etere potassium thiocyanate umxholo uthuthu yeyona nto kuqwalaselwe eyakhe iimpawu ixabiso index.
4, i-hydroxypropyl methyl cellulose viscosity
IHydroxypropyl methyl cellulose ukugcinwa kwamanzi kunye nesiphumo sokuqina sisitshixo sokongeza i-sement mortar cellulose ether kwi-viscosity yayo kunye nokufakwa.
I-5, i-hydroxypropyl methyl cellulose ixabiso le-PH
I-viscosity yeemveliso ze-hydroxypropyl methyl cellulose iyancipha ngokuthe ngcembe kwiqondo lokushisa eliphezulu okanye emva kokugcinwa ixesha elide, ngakumbi kwiimveliso eziphezulu ze-viscosity, ngoko ixabiso le-pH kufuneka lilinganiselwe. Ngokuqhelekileyo kuchazwe ukuba udidi lwexabiso lwe-PH lwe-ether ye-cellulose kufuneka luqhutywe njenge-5-9.
6. Ukuhanjiswa kwe-hydroxypropyl methyl cellulose
Iingenelo kunye nokungalunganga kokuhanjiswa kwe-hydroxypropyl methyl cellulose inokuchaphazela ngokuthe ngqo umphumo wokwenene wokusetyenziswa kwayo kwizinto zokwakha. Izinto eziphambili ezonakalisa ukuhanjiswa kwe-cellulose ether zi
1) umgangatho wezinto eziluhlaza; (2) owona mphumo wokubulala; (3) Ukulungiswa kobuchwephesha; (4) ukulungiswa kwe-organic solvent; (5) Esona siphumo se-zhonghe.
Ngokomphumo wangempela wesicelo, ukuhanjiswa kwe-cellulose ether akufanele kube ngaphantsi kwe-80%.
7, i-hydroxypropyl methyl cellulose ekrokrelwayo lobushushu
I-Hydroxypropyl methyl cellulosekumacandelo e-samente njengesitshixo sokwandisa i-adhesives, i-viscosity kunye ne-agent yokugcinwa kwamanzi, ngoko i-viscosity kunye nobushushu be-gel yixabiso lesalathisi esibalulekileyo se-hydroxypropyl methyl cellulose. Ubushushu busetyenziselwa ukugweba uhlobo kunye nokucaciswa kwe-cellulose ether, kunye neqondo lokutshintshwa kwe-cellulose ether inxulumene.
8. Ukongezelela, ityuwa kunye nentsalela iya kulimaza ukushisa kweglue. Xa ukushisa kwesisombululo samanzi kuphakama, i-fiber polymer ngokuthe ngcembe ayinamanzi, kwaye i-viscosity yesisombululo samanzi iyancipha. Xa i-adhesive point ifinyelelwe, i-polymer yome ngokupheleleyo kwaye i-adhesive iveliswa. Ngoko ke, ukushisa okusebenzayo kwamalungu e-samente ngokuqhelekileyo kungaphantsi kobushushu beglue bokuqala. Ngaphantsi kwalo mgangatho, iqondo lokushisa liphantsi, liphezulu i-viscosity, kwaye kubaluleke ngakumbi umphumo we-viscosification kunye nokugcinwa kwamanzi.
Ixesha lokuposa: Apr-25-2024