Mashoko akakosha: Poly dimethyl diallyl ammonium chloride, PDMDAAC, PDADMAC, PolyDADMAC
Munyika ine mavara ezvigadzirwa zvemakemikari zvezuva nezuva, zvinhu zvakawanda, zvakaita seshinda dzisingaonekwe, zvinoruka chinyararire mufananidzo wakanaka wemaitiro edu ekuchengetedza ganda zuva nezuva.Poly dimethyl diallyl ammonium chloride (PDADMAC)chinhu chakadaro—kunyange zvazvo chisingaonekwe zvakananga pamapepa ekushongedza, chakabatanidzwa zvakanyanya muzvigadzirwa zvekuchengetedza bvudzi muchimiro chepolymer, chichiva chinhu chinobatsira bvudzi neganda zvakapfava. Saka, chinhu ichi chemakemikari chakachengeteka here kusangana nacho? Mhinduro iri muhukama hwayo husina kujeka nezvizoro.
Maumbirwo emakemikoro ePoly dimethyl diallyl ammonium chloride anoita kuti ive "affinity" yakasiyana. Se cationic polymer, ine simba rakanaka uye inogona kunyudza zviri nyore fibers kana zvidimbu zvisina simba. Muindasitiri yezvizoro, hunhu uhwu hunoshanduka kuita mabasa anoshanda: kana ikaiswa mu shampoo, inobvisa simba remagetsi rinogadzirwa nekukweshana, zvichiita kuti bvudzi rive rakatsetseka uye rigoneke pane kupfava; mu shower gel, inoshanda sefirimu rinodzivirira risingaonekwe, inoderedza kurasikirwa nehunyoro uye ichisiya ganda richinzwa rakatsetseka. Izvi hazvisi zvemashiripiti, asi zvinobva mukuchinjika uye kunyungudika kwemvura kwemasero ayo emucheni - inopararira nekukurumidza mumvura, ichigadzira mhinduro yakafanana inofukidza zvinyoro nyoro bvudzi rega rega kana ganda pasina kusiya kunzwa kunonamira. Fungidzira kupenya kuri kuyerera pabvudzi rako mushure mekushambira; zvinonyanya kukonzerwa nebasa rakanyarara rePoly dimethyl diallyl ammonium chloride.
Zvisinei, "kubatana kwakachengeteka" kwePolyDADMACHazvina muganho. Kutarisira zvinhu zviri muzvizoro kwakafanana nekuenzanisa zvinhu nemazvo, zvinoda kushanda nesimba uye kudzivirira njodzi.PolyDADMACIyo pachayo yakagadzikana zvishoma, hainzwisisi kuchinja kwepH, uye haibati moto, zvichipa vimbiso yekutanga yekushandiswa kwayo muzvigadzirwa zvemakemikari zvezuva nezuva. Asi chinhu chikuru chiri munyaya ye "residual monomers" dzayo. Munguva yepolymerization, huwandu hushoma hweacrylamide monomers hungasaita zvizere, uye acrylamide pachayo inogona kutsamwisa. Saka, kudzora zvakanyanya huwandu hwasara chinhu chinodiwa kuti pave nekuchengetedzeka. Semuenzaniso, mumashampoos kana makirimu, huwandu hwePoly dimethyl diallyl ammonium chloride inowedzerwa hunofanirwa kudzorwa nemazvo kuti ive nechokwadi chekuti huwandu hwemonomer muchigadzirwa huri pasi pechiyero chakachengeteka, kudzivirira kuremedza ganda rinonzwa. Kutarisira uku kwakanyatsonaka kunochinjaPolyDADMACkubva pazvinhu zvakagadzirwa mumaindasitiri kuenda kune chinhu chekuchengetedza zuva nezuva icho vatengi vanogona kushandisa nerugare rwepfungwa.
Kubva pamaonero akafara, "kuchengetedzwa kwekusangana" kwePolyDADMACinoonekwawo muhushamwari hwayo nezvakatipoteredza. Inonyungudika nyore nyore mumvura, haigadzi majeli, uye haipindi ma chloride ions, zvichireva kuti haingaunganidzi kana kuburitsa zvinhu zvinokuvadza mumvura yakasviba kana munzvimbo dzechisikigo. Kana tichienzanisa nezvimwe zvinowedzera makemikari,PolyDADMACine mukana wekuora zviri nani, zvichideredza kukanganisa kwezvakatipoteredza kwenguva refu. Patinotaura nezve "kusangana zvakananga," hatisi kungotaura nezvekubatana kwenguva pfupi neganda kana bvudzi, asiwo tinosanganisira hupenyu hwayo hwese hwezvakatipoteredza—kubva pakugadzirwa kusvika pakurasa, pfungwa yekugadziraPolyDADMACinogara ichitsigira njodzi shoma uye inoenderana zvakanyanya. Mukupedzisa,PolyDADMACHazvisi zvinorambidzwa "kusangana zvakananga," asi, kuburikidza nesainzi uye mitemo yakasimba, yave chinhu chakakosha uye chinodzivirira muzvizoro. Kufanana nemuimbi asingaonekwe, inoshandisa mabhurashi emasero kuratidza mufananidzo unobvumirana werunako nekuchengetedzwa. Nguva inotevera paunonakidzwa nebvudzi rakatsetseka kana ganda rakanyorova, yeuka mupiro wakanyarara weuchenjeri uhwu hwemakemikari - zvichiita kuti kutarisira kwezuva nezuva kuve kwakanaka uye kwakachengeteka.
Nguva yekutumira: Kukadzi-06-2026