Yintoni uBudlelwane phakathi koGcino lwaManzi lwe-HPMC kunye noBushushu?

I-Hydroxypropyl methylcellulose (HPMC) yinto eyongeziweyo esetyenziswa ngokuqhelekileyo kwizinto zokwakha, ezifana nodaka oluxubeneyo olomileyo, ngenxa yeempawu zokugcina amanzi. Ukugcinwa kwamanzi kuyipropathi ebalulekileyo ye-HPMC, njengoko ichaphazela ukuhambelana, ukusebenza, kunye nokunyangwa kodaka. Ubudlelwane phakathi kokugcinwa kwamanzi kwe-HPMC kunye nobushushu buntsonkothile kwaye kuxhomekeke kwizinto ezininzi.

Ngokubanzi, ukugcinwa kwamanzi kwe-HPMC kuncipha njengoko ubushushu bunyuka. Oku kungenxa yokuba njengoko iqondo lobushushu lisanda, umlinganiselo wokuphuphuma kwamanzi kudaka nawo uyanda. I-HPMC inceda ukucothisa le nkqubo ngokwenza umqobo kumphezulu wodaka, ukuthintela amanzi ukuba angabi ngumphunga ngokukhawuleza. Nangona kunjalo, kumaqondo okushisa aphezulu, lo mqobo awunakusebenza ngokwaneleyo ukugcina amanzi kumdaka, okhokelela ekunciphiseni ukugcinwa kwamanzi.

Kufuneka kuqatshelwe ukuba ubudlelwane phakathi kokugcinwa kwamanzi kwe-HPMC kunye nobushushu abukho kumgca. Kwiqondo lobushushu eliphantsi, i-HPMC inomthamo ophezulu wokugcina amanzi, njengoko isantya esicothayo somphunga sivumela i-HPMC ukuba yenze umqobo onamandla. Njengoko iqondo lobushushu lisanda, ukugcinwa kwamanzi kwe-HPMC kuncipha ngokukhawuleza de ifike kubushushu obuthile, olwaziwa ngokuba bubushushu obubalulekileyo. Ngaphezulu kolu bushushu, ugcino lwamanzi lwe-HPMC luhlala lungaguquguquki.

Ubushushu obubalulekileyo be-HPMC buxhomekeke kwizinto ezininzi, kuquka uhlobo kunye noxinaniso lwe-HPMC olusetyenziswayo, kunye nokwakheka kunye nobushushu bodaka. Ngokubanzi, iqondo lobushushu elibalulekileyo le-HPMC lisuka kuma-30°C ukuya kuma-50°C.

Ukongeza kwiqondo lobushushu, ezinye izinto zinokuchaphazela nokugcinwa kwamanzi e-HPMC kudaka oluxubeneyo elomileyo. Ezi ziquka uhlobo kunye nokugxininiswa kwezinye izongezo kudaka, inkqubo yokuxuba, kunye nokufuma kwe-ambient. Kubalulekile ukuqwalasela zonke ezi zinto xa uqulunqa udaka oluxutywe owomileyo ukuqinisekisa ukugcinwa kwamanzi kunye nokusebenza kakuhle.

Isishwankathelo, ubudlelwane phakathi kokugcinwa kwamanzi kwe-HPMC kunye nobushushu buyinkimbinkimbi kwaye kuxhomekeke kwizinto ezininzi. Ngokubanzi, ukugcinwa kwamanzi kwe-HPMC kuncipha njengoko ubushushu bukhula, kodwa olu lwalamano alunamgca kwaye luxhomekeke kubushushu obubalulekileyo be-HPMC. Ezinye izinto, ezifana nohlobo kunye noxinzelelo lwezongezo, nazo zidlala indima ekunqumeni ukugcinwa kwamanzi kwe-HPMC kumdaka odibeneyo owomileyo.