Acetate tow, anozivikanwawo se cellulose acetate tow, chinhu chakakosha chinoshandiswa zvakanyanya mukugadzira mafirita efodya nezvimwe zvinogadzirwa nefodya. Iyo inoratidzirwa neiyo yakakwira crimp modulus, iyo inovimbisa kuti inobata chimiro chayo uye chimiro zvinobudirira panguva yekugadzirisa. Heino dhairekitori rakadzama rekuita sei acetate tow, kutsanangura nhanho imwe neimwe inobatanidzwa mukugadzira.
1. Raw Material Gadziriro
Iyo yekutanga mbishi zvinhu zvekugadzira acetate tow ndeye cellulose, kazhinji inotorwa kubva kuzvinyorwa zvakaita sedonje, bamboo, huni, kana pepa rakagadzirwazve. Danho rekutanga rinosanganisira kuchenesa midziyo iyi zvakakwana kubvisa chero tsvina. Kana yacheneswa, zvinhu zvacho zvinochekwa kuita zvidimbu zvidiki kana mafibisi kuti zvifambire mberi kugadzirisa.
2. Kemikari Kurapa
Iyo cellulose yakagadzirwa inopinda mumakemikari ekurapa maitiro anozivikanwa seasidhi hydrolysis kana alkaline hydrolysis.
- Acid Hydrolysis: Munzira iyi, cellulose inowedzerwa kune sulfuric acid kana imwe acidic solution. Pasi pekushisa kwepamusoro uye kudzvinyirira, chimiro che cellulose chinoshandurwa, kuwedzera kuchena kwayo.
- Alkaline Hydrolysis: Neimwe nzira, cellulose inogona kusanganiswa nealkaline solution, iyo inoishandura kuita fiber esters kuburikidza nenhevedzano yemakemikari maitiro.
Nzira mbiri idzi dzinokonzera kuumbwa kwe cellulose acetate, kiyi yepakati mukugadzirwa kweacetate tow.
3. Dehydration uye Esterification
Mushure mekurapa kwemakemikari, the cellulose acetate inopera mvura kuti ibvise chero mwando wasara. Next, inopinda esterification reaction ine acid anhydrides, kugadzira cellulose acetate ester, iyo inonyungudika mu organic solvents.
4. Solvent Evaporation uye Crystallization
Iyo cellulose acetate ester inobva yanyungudutswa mune organic solvent. Kuburikidza nekuputika, chinonyungudutsa chinobviswa, zvichiita kuti cellulose acetate ester iwedzere uye kupenya. Iyi crystalline zvinhu ndiyo inozivikanwa seacetate tow.
5. Kuomesa uye Kugadzira
Iyo inonaya acetate tow inoomeswa kuti iwane yakakwana mwando yemukati. Kamwe yaoma, inopinda mamwe matanho ekugadzirisa, kusanganisira kusamonyorora, kucheka, kutenderera, uye kuruka, kuishandura kuita chigadzirwa chekupedzisira. Aya matanho anovimbisa kuti iyo acetate tow ine inodiwa yemuviri zvivakwa uye yakagadzirira kushandiswa mune akasiyana maapplication.
6. Advanced Manufacturing Techniques
Kuwedzera kunaka uye kuita kweacetate tow, vagadziri vanowanzo shandisa nzira dzepamusoro dzekugadzira. Semuyenzaniso, kuchengetedza chaiyo acetone yemukati uye tembiricha panguva yecrimping process inogona kuvandudza zvakanyanya crimp modulus yeacetate tow., zvichiita kuti ive yakakodzera kushandiswa mumashandisirwo epamusoro-soro semasefa efodya.
7. Kudzora Kwemhando uye Packaging
Isati yatumirwa kushandiswa, iyo yakapedzwa acetate tow inosangana neyakaomarara yemhando yekudzora kuyedzwa kuti ive nechokwadi chekuti inosangana neindasitiri zviyero. Izvi zvinosanganisira kuongorora kana kusvibiswa, fiber simba, uye crimp modulus. Kana zvambosimbiswa, iyo acetate tow yakakuvara, inspected, uye yakarongedzwa kuti igovere.
Mhedziso
Kuita acetate tow kunosanganisira nhevedzano yenhanho dzokungwarira, kubva pakugadzirwa kwezvinhu zvakasvibiswa kusvika kumakemikari kurapwa, kupera mvura mumuviri, esterification, solvent evaporation, crystallization, kuomesa, processing, uye kutonga kwehutano. Nhanho yega yega yakakosha mukuona kugadzirwa kwemhando yepamusoro acetate tow inosangana nezvinodiwa nemaindasitiri akasiyana.. Nekufambira mberi mukugadzira michina, nzira yekugadzira inoenderera mberi, kuvandudza kushanda uye kunaka kwechigadzirwa.
Nokutevera gwara iri, vagadziri vanogona kugadzira acetate tow iyo isiri yakasimba uye inoshanda chete asiwo inosangana nezvinodiwa zvakasimba zvemazuva ano ekugadzira maitiro..
