Ukugcinwa kwamanzi: I-HPMC, njenge-arhente yokugcina amanzi, inokuthintela ukuvela kwamanzi amaninzi kunye nokulahlekelwa kwamanzi ngexesha lenkqubo yokunyanga. Utshintsho lobushushu luchaphazela kakhulu ukugcinwa kwamanzi kweHPMC. Ukuphakama kweqondo lobushushu, kubi kakhulu ukugcinwa kwamanzi. Ukuba ubushushu bodaka budlula i-40 ° C, ukugcinwa kwamanzi kwe-HPMC kuya kuba nzima, okuya kuchaphazela kakubi ukusebenza kodaka. Ngoko ke, ekwakhiweni kwehlobo lobushushu obuphezulu, ukuze kufezekiswe umphumo wokugcinwa kwamanzi, iimveliso eziphezulu ze-HPMC kufuneka zongezwe kwiimali ezaneleyo ngokwefomula. Ngaphandle koko, iingxaki ezisemgangathweni ezifana nokungonelanga kwe-hydration, ukunciphisa amandla, ukuqhekeka, ukugoba, kunye nokuchithwa okubangelwa ukomisa ngokugqithiseleyo kuya kwenzeka. umbuzo.
Iimpawu zokudibanisa: I-HPMC inempembelelo ebalulekileyo ekusebenzeni kunye nokunamathela kodaka. Ukuncamathela okukhulu kubangela ukuxhathisa okuphezulu kwe-chear kwaye kufuna amandla amakhulu ngexesha lokwakha, okukhokelela ekunciphiseni ukusebenza. Ngokubhekiselele kwiimveliso ze-cellulose ether, i-HPMC ibonisa ukunamathela okuphakathi.
Ukuqukuqela kunye nokusebenza: I-HPMC inokunciphisa ingxabano phakathi kwamasuntswana, okwenza kube lula ukuyifaka. Olu buchule buphuculweyo buqinisekisa inkqubo yolwakhiwo esebenzayo.
Ukumelana nokuqhekeka: I-HPMC yenza i-matrix eguquguqukayo ngaphakathi kodaka, ukunciphisa uxinzelelo lwangaphakathi kunye nokunciphisa ukwenzeka kokuqhekeka kwe-shrinkage. Oku kwandisa ukuqina ngokubanzi kodaka, ukuqinisekisa iziphumo ezihlala ixesha elide.
I-Compressive and Flexural Strength: I-HPMC ikwandisa amandla okuguquguquka kodaka ngokuqinisa i-matrix kunye nokuphucula ukudibanisa phakathi kwamaqhekeza. Oku kuya kwandisa ukuchasana noxinzelelo lwangaphandle kunye nokuqinisekisa ukuzinza kwesakhiwo.
Ukusebenza kwe-Thermal: Ukongezwa kwe-HPMC kunokuvelisa izinto ezilula kunye nokunciphisa ubunzima. Olu luhlu oluphezulu lwe-void lunceda nge-thermal insulation kwaye lunokunciphisa ukuqhutyelwa kombane wezinto eziphathekayo ngelixa ugcina ubushushu obuqhelekileyo xa uphantsi kobushushu obufanayo. ubungakanani. Ukuchasana nokugqithiswa kobushushu ngephaneli kuyahluka kunye nenani le-HPMC elongeziweyo, kunye nokufakwa okuphezulu kwe-additive ekhokelela ekunyuseni kokuchasana kwe-thermal xa kuthelekiswa nomxube wereferensi.
Impembelelo yokungenisa umoya : Umphumo wokungenisa umoya we-HPMC ubhekisela kwinto yokuba i-cellulose ether iqukethe amaqela e-alkyl, anokunciphisa amandla omhlaba wesisombululo samanzi, ukwandisa umxholo womoya kwi-dispersion, kunye nokuphucula ukuqina kwefilimu ye-bubble kunye nokuqina kwamaqamza acocekileyo amanzi. Iphezulu kwaye kunzima ukuyikhupha.
Ubushushu beGel: Ubushushu bejeli yeHPMC ibhekisa kwiqondo lobushushu apho iimolekyuli zeHPMC zenza ijeli kwisisombululo esinamanzi phantsi koxinzelelo oluthile kunye nexabiso le-pH. Ubushushu beGel yenye yeeparamitha ezibalulekileyo zesicelo se-HPMC, esichaphazela ukusebenza kunye nesiphumo se-HPMC kwiinkalo ezahlukeneyo zesicelo. Ubushushu bejeli ye-HPMC buyanda ngokunyuka koxinzelelo. Ukunyuka kobunzima be-molecular kunye nokuncipha kwinqanaba lokutshintshwa kuya kubangela ukuba ukushisa kwejel kunyuke.
I-HPMC inempembelelo ebalulekileyo kwiipropati zodaka kumaqondo obushushu ahlukeneyo. Ezi mpembelelo zibandakanya ukugcinwa kwamanzi, ukusebenza kwebhondi, ukuguquguquka, ukuxhathisa ukuqhekeka, amandla oxinzelelo, amandla okuguquguquka, ukusebenza kwe-thermal kunye nokungena emoyeni. . Ngokulawula ngokufanelekileyo idosi kunye neemeko zokwakha ze-HPMC, ukusebenza kodaka kunokuphuculwa kwaye ukusetyenziswa kwayo kunye nokuqina kumaqondo obushushu ahlukeneyo kunokuphuculwa.
Ixesha lokuposa: Oct-26-2024