Abstract:
Starch ethers inotorwa kubva kune starch kuburikidza nekugadzirisa kemikari uye inoshandiswa mumhando dzakasiyana dzemaindasitiri ekushandisa, imwe inocherekedza application iri mune gypsum adhesives.Ichi chinyorwa chinopa kuongororwa kwakadzama kwebasa uye kukosha kweiyo starch ethers mune gypsum adhesives, ichitora zvakadzama kutarisa kwekemikari yayo, maitiro ekugadzira, uye akawanda mabhenefiti ayo anounza kune anonamatira mafomu.
1. Nhanganyaya:
Gypsum adhesives anoshandiswa zvakanyanya muindasitiri yekuvaka yekubatanidza drywall, drywall, uye zvimwe zvine chekuita nekushandisa.Kuwedzerwa kwe starch ethers kune izvi zvinonamira kwakaratidzwa kuwedzera hunhu hwavo hwekuita, nemabhenefiti akadai sekuvandudzwa kwesimba rebhondi, kuramba kwemvura uye processability.Ichi chikamu chinopa mhedziso yekukosha kwekunamatira munharaunda yekuvaka uye inotsanangura basa re starch ethers mukusimudzira zvinhu zvegypsum adhesives.
2. Kemikari zvinhu zve starch ether:
Starch ether chigadzirwa chestarch chakagadziridzwa chinowanikwa nekushandura chimiro chayo chemolecular kuburikidza nemakemikari maitiro.Kunzwisisa chemistry ye starch ethers kwakakosha kuti unzwisise maitiro avo mukunamira maumbirwo.Ichi chikamu chinoongorora akakosha emakemikari zvimiro zve starch ethers, kusanganisira yavo mamorekuru maumbirwo, zvinotsiva, uye kukanganisa kweiyi shanduko pane inonamira zvimiro.
3. Kugadzirwa kwe starch ether:
Kugadzirwa kwe starch ethers kunosanganisira akasiyana emakemikari maitiro, senge etherification uye cross-linking, izvo zvakakosha pakugadzirisa zvivakwa zvavo kuti zvisangane nezvinodiwa zvekunamatira.Ichi chikamu chinopa kuongorora kwakadzama kwemaitiro ekugadzira anobatanidzwa mukugadzirwa kwestarch ethers uye kuti kusiyana kwemaitiro aya kunokanganisa sei kushanda kwavo mugypsum binders.
4. Basa re starch ether mune gypsum adhesive:
Starch ethers inoshanda akawanda mabasa mune gypsum adhesives, inobatsira kuvandudza kunamatira, kubatana uye kuita kwese kwechigadzirwa.Ichi chikamu chinoongorora kuti starch ethers inopindirana sei nezvimwe zvinongedzo mune gypsum adhesive formulations, kusimbisa basa ravo mukusimudzira simba rezvisungo, kusamira kwemvura, uye kuderedza adhesive shrinkage.
5. Zvakanakira kushandisa starch ether mune gypsum adhesives:
Kuwedzerwa kwe starch ethers kune gypsum binders kunopa zvakawanda zvakanakira, zvichiita kuti vave sarudzo yekutanga mumhizha yekuvaka.Ichi chikamu chinodonongodza mabhenefiti chaiwo anosanganisira kunamira kuchinjika kwekunamira, kuvandudza kunyorova uye kukwidziridzwa kushanda kuti ipe kunzwisiswa kwakadzama kwezvakanaka zvinokonzeresa gypsum adhesive formulations.
6. Zvinetso nemiganhu:
Kunyange zvazvo starch ether ichipa zvakawanda zvakanakira, zvingangonetsa uye zvisingakwanisike zvinechekuita nekushandiswa kwavo mumabhinda epurasita zvinofanira kubvumwa.Ichi chikamu chinokurukura nyaya dzakaita sekutariswa kwemitengo, kuenderana nezvimwe zvinowedzerwa, uye kudiwa kwekunyatso gadzira kuti ukunde zvisingakwanisi.
7. Zvidzidzo uye mashandisirwo:
Ichi chikamu chinotarisa pamashandisirwo anoshanda, achipa zvidzidzo zvezviitiko zvinoratidza kushandiswa kwakabudirira kwe starch ethers mune gypsum binder formulations.Zvidzidzo zvenyaya iyi mienzaniso inoshanda yekuti starch ether inogona kugadziridzwa sei kuti isangane nezvinodiwa zvepurojekiti, zvichiwedzera kusimbisa kugona kwavo mumhando dzakasiyana dzekuvaka.
8. Mafambiro emunguva yemberi uye mafambiro ekutsvaga:
Sezvo indasitiri yekuvaka inoshanduka, ndizvo zvinoitawo kudiwa kwekuvandudzwa kwehunyanzvi hwekunamira.Ichi chikamu chinoongorora zvingangoitika mune ramangwana mukushandiswa kwe starch ether mumabhainda egypsum uye chinopa mazano ezveimwe tsvakiridzo nebudiriro.Tekinoroji dziri kusimukira, maitiro anoenderera uye magadzirirwo ehunyanzvi anoonekwa senzvimbo dzinogona kutariswa.
9. Mhedziso:
Mukupedzisa, kuwedzerwa kwe starch ethers kune gypsum adhesives inomiririra kufambira mberi kwakakosha mune yekunamira tekinoroji yeindasitiri yekuvaka.Yayo yakawanda inoshanda zvimiro, pamwe nekugona kwayo kukwidziridza akakosha maficha ekuita kwekunamira, inoita kuti ive chinhu chakakosha muplaster adhesive formulations.Nekunzwisisa chemistry, magadzirirwo ekugadzira, mabhenefiti, uye zvinonetsa zvine chekuita nesitarch ethers, indasitiri yekuvaka inogona kuramba ichikwiridzira iyi yakagadziridzwa starch yekuvandudzwa uye inonamira mhinduro.
Nguva yekutumira: Zvita-04-2023