1. Cellulose inopfuura neD-Glucopyranosese β- A Linear Polymer yakaumbwa nehukama hwe1,4 glycolides bonds. Iyo cellulose membrane pachayo yakanyanya crystalline uye haigone kuvezwa mumvura kana kuumbwa mumendurani, saka inofanira kushandurwa zvemoyo. Iyo yemahara hydroxyl kunzvimbo dzeC-2, C-3 uye C-6 inoigadzirisa neCemical chiitiko uye inogona kuve oxidized maitiro, itsteidized maitiro, itsterification, gadziriso uye graft copolymerization. Iyo solubility yeiyo yakagadziridzwa cellulose inogona kuvandudzwa uye ine yakanaka firimu yekugadzira maitiro.
2. Muna 1908, Swiss Chemist Jacques Brandberg akagadzirira iyo yekutanga cellulose firimu Cellopane, iyo yakapayona kukura kwezvinhu zvazvino zvakajeka zvekuputika zvinhu. Kubva 1980s, vanhu vakatanga kudzidza zvakagadziridzwa cellulose sefirimu rinopindwa uye kuunganidza. Modified cellulose membrane im membrane zvinhu zvakagadzirwa kubva kune inobva inowanikwa mushure memakemikari yekugadziridzwa kwemheremalose. Rudzi urwu rwembrane rune simba rakakwirira kwazvo simba, kushanduka-shanduka, kuparadzaniswa kwemafuta, kusavimbika uye kusavimbika, mvura yekurwisa uye yepakati uye oksijeni kupokana.
3 Kana ichishandiswa pamwe chete necalcium chloride, mhedzisiro iri nani. HPMC uye MC iri kushandiswa zvakanyanya mukupisa kwakabatwa chikafu, kunyanya mune yakakangwa chikafu, nekuti iwo magirels jelrul. Mu Africa, HPMC, chigaro chezviyo uye Amylose anoshandiswa kuvharira mafuta anodzika akatsvuka matsvuku akadzika mbopa Iyo yakashongedzwa mc membrane zvinyorwa ndiyo inonyanya kushanda mune grease chipinganidzo, iyo inogona kuderedza iyo yemafuta yekutya kusvika 49%. Kazhinji kutaura, kusvetuka samples inoratidza kudzikisa mafuta ekunyura pane kupfirwa.
4. MCuye HPMC inoshandiswawo mumasampu ematombo ematata ematata, batter, mbatatisi machipisi uye mukanyiwa kuti uvandudze kuita kwekutadza, kazhinji nekupfira. Tsvagurudzo inoratidza kuti MC ine maitiro akanakisa ekuvhara kunyorova uye oiri.its yekuchengetedza mvura zvakanyanya nekuda kweiyo yakaderera hydrofiromity. Kuburikidza nemicroscope, inogona kuoneka kuti mc firimu ine yakanaka yekudyidzana kune yakakangwa chikafu. Zvidzidzo zvakaratidza kuti HPMC Coating yakapfava pamabhora ehuku ane kuchengetwa kwemvura kwakanaka uye kunogona kuderedza zvakanyanya zvemafuta mukati mekufema. Mvura yemvura yemuenzaniso wekupedzisira inogona kuwedzerwa ne1.4%, iyo nzvimbo yemukati yemafuta inogona kuderedzwa na 17.9%, uye kuita kwemukati kwemari inoenderana neyekupedzisira mafuta ane chekuita neiyo inobata kuita kweHpc. Pazororo rekutanga reGel, iyo viscosity inowedzera nekukurumidza, kusungwa kusungwa kunoitika nekukurumidza, uye mhinduro jecha pa50-90 ℃. Iyo gel layer inogona kudzivirira kutama kwemvura uye mafuta panguva yekubika. Kuwedzera hydrogeri kune iyo yekunze kweiyo yakaomeswa huku mitsetse inokwenenzverwa mune zvimedu zvezvingwa zvinogona kuderedza dambudziko rekugadzirira, uye rinogona kuderedza kusimuka kwehuku uye chengetedza iyo yakasarudzika yemhando yemuenzaniso.
5. Kunyangwe HPMC iri yakakodzera yefirimu yefirimu neakanaka michina zvimiro uye nemvura yemvura inopesana, ine share diki yemusika. Pane zvinhu zviviri zvinorambidza application yaro: Kutanga, iyo iri yegwenzi, iyo, iyo viscoelastic yakasimba seganda rakaumbwa pakupisa kwakanyanya, asi riripo mune yakaderera viscosity pamhepo tembiricha. Nekuda kweizvozvo, matrix anofanirwa kuve azvidzwa uye akaomeswa pakupisa kwakanyanya panguva yekugadzirira. Zvikasadaro, mune yekubatanidza, kupfira kana kusvetuka, mhinduro iri nyore kuyerera pasi, kugadzira zvinhu zvisina kujairika zvinhu, zvichikanganisa mashandiro emifananidzo inodarika. Uye zvakare, iyi mashandiro anofanira kuve nechokwadi chekuti iyo yese yekugadzira musangano inochengetwa pamusoro 70 ℃, kupambadza kupisa kwakawanda. Naizvozvo, zvinodikanwa kuderedza iyo glenji yayo yeGel kana kuwedzera zvavakaita pakudziya kwakadzika. Chechipiri, inodhura kwazvo, inenge 100000 yuan / ton.
Kutumira Nguva: Kubvumbi 26-2024