Polyanionic Cellulose (PAC) uye Sodium Carboxymethyl Cellulose (CMC)

Polyanionic cellulose (PAC) uye sodium carboxymethyl cellulose (CMC) zvese zviri zviviri zvinogadzirwa ne cellulose zvinoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana kuti zviite kuti zvive zvakasimba, zvigare zvakanaka, uye zvine hunhu hwe rheological. Kunyange zvazvo zvakafanana, zvinewo musiyano wakasiyana maererano nechimiro chemakemikari, hunhu, uye mashandisirwo azvo. Heino kuenzanisa pakati pePAC neCMC:

1. Maumbirwo eKemikari:
   • PAC: Polyanionic cellulose ipolymer inonyungudika mumvura inobva mu cellulose nekuiswa kwe carboxymethyl nemamwe mapoka eanionic pa cellulose backbone. Ine mapoka akawanda e carboxyl (-COO-) ari pa cellulose chain, zvichiita kuti ive anionic zvakanyanya.
   • CMC: Sodium carboxymethyl cellulose ipolymer inonyungudika mumvura inobva mu cellulose, asi inopinda muchirongwa checarboxymethylation, zvichikonzera kutsiviwa kwemapoka ehydroxyl (-OH) nemapoka ecarboxymethyl (-CH2COONa). CMC inowanzova nemapoka ecarboxyl mashoma zvichienzaniswa nePAC.
2. Zvisikwa zveIonic:
   • PAC: Polyanionic cellulose ine anionic yakawanda nekuda kwekuvapo kwemapoka akawanda ecarboxyl ari mucheni yecellulose. Inoratidza hunhu hwakasimba hwekutsinhana kwemaion uye inowanzoshandiswa senzira yekudzora kupfapfaidza uye kugadzirisa rheology mumvura inocherwa nemvura.
   • CMC: Sodium carboxymethyl cellulose ine anionic zvakare, asi huwandu hwayo hweanionic hunoenderana nehuwandu hwekutsiva (DS) hwemapoka ecarboxymethyl. CMC inowanzoshandiswa semuchina wekuomesa, wekusimbisa, uye wekugadzirisa viscosity muzvishandiso zvakasiyana-siyana, zvinosanganisira chikafu, mishonga, uye zvigadzirwa zvekuchengetedza munhu.
3. Kusviba uye Rheology:
   • PAC: Polyanionic cellulose inoratidza hunhu hwakanyanya hwekusviba uye hutete hwekuchekerera mumushonga, zvichiita kuti ishande semuchina wekugocha uye wekugadzirisa rheology muzvinwiwa zvekuboora nezvimwe zvinoshandiswa mumaindasitiri. PAC inogona kutsungirira tembiricha yakakwira uye huwandu hwemunyu hunowanikwa mumabasa emafuta.
   • CMC: Sodium carboxymethyl cellulose inoratidzawo hunhu hwekuchinja viscosity uye rheology, asi viscosity yayo inowanzo kuve yakaderera kana ichienzaniswa nePAC. CMC inoumba mhinduro dzakagadzikana uye dzepseudoplastic, zvichiita kuti ikodzere kushandiswa kwakasiyana-siyana, kusanganisira chikafu, zvizoro, uye mishonga.
4. Mashandisirwo:
   • PAC: Polyanionic cellulose inonyanya kushandiswa muindasitiri yemafuta negesi semushonga wekudzora kupfapfaidza, kugadzirisa rheology, uye kuderedza kurasikirwa kwemvura mumvura yekuboorera. Inoshandiswawo mune mamwe maindasitiri akadai sezvinhu zvekuvaka uye kugadzirisa nharaunda.
   • CMC: Sodium carboxymethyl cellulose inoshandiswa zvakasiyana-siyana mumaindasitiri akasiyana-siyana, kusanganisira chikafu nezvinwiwa (sechinhu chinosimbisa uye chinosimbisa), mishonga (sechinhu chinosunga uye chinobvisa), zvigadzirwa zvekuchengetedza muviri (sechinhu chinogadzirisa rheology), machira (sechinhu chinogadzira saizi), uye kugadzira mapepa (sechinhu chinowedzera mapepa).

nepo polyanionic cellulose (PAC) uye sodium carboxymethyl cellulose (CMC) zviri zvinhu zvinobva mu cellulose zvine hunhu hweanionic uye zvakafanana mune mamwe maindasitiri, zvine musiyano wakasiyana maererano nechimiro chemakemikari, hunhu, uye mashandisirwo chaiwo. PAC inonyanya kushandiswa muindasitiri yemafuta negesi, nepo CMC ichiwana mashandisirwo akakura muzvekudya, mishonga, zvekuchengetedza munhu, machira, uye mamwe maindasitiri.