Hydroxyethyl methylcellulose (HEMC) ipolymer inoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana, anosanganisira mishonga, chikafu, zvizoro, uye kuvaka. Inonyanya kukosha nekuda kwekukora kwayo, emulsifying, film-forming, uye stabilizing. Pasinei nekushandiswa kwayo zvakanyanya, kuve nechokwadi chekuchengetedza panguva yekubata kwayo nekushandiswa kwayo kwakakosha. Heano matanho akazara ekuchengetedza ekushandisa hydroxyethyl methylcellulose:
1. Kunzwisisa Nyaya
HEMC i non-ionic cellulose ether, inobva mu cellulose uko mapoka ehydroxyl akatsiviwa zvishoma ne hydroxyethyl ne methyl groups. Kugadziriswa uku kunovandudza kunyungudika kwayo uye mashandiro ayo. Kuziva hunhu hwayo hwemakemikari nemuviri, hwakadai sekunyungudika, viscosity, uye kugadzikana, kunobatsira mukubata nayo zvakachengeteka.
2. Midziyo yekudzivirira munhu (PPE)
Magorovhosi nembatya dzinodzivirira:
Pfeka magirovhosi asingakuvadzi makemikari kudzivirira kusangana neganda.
Shandisa mbatya dzinodzivirira, kusanganisira hembe dzine maoko marefu nemabhurugwa, kuti usanyanya kubatwa neganda.
Dziviriro yeMaziso:
Shandisa magirazi ekuchengetedza kana zvidziviriro zvechiso kudzivirira guruva kana mapopoma.
Dziviriro yekufema:
Kana uchibata HEMC muchimiro cheupfu, shandisa mamasiki eguruva kana ma respirators kudzivirira kufema zvidimbu zvidiki.
3. Kubata uye Kuchengeta
Kufefetera:
Iva nechokwadi chekuti nzvimbo yekushandira ine mhepo yakakwana kuti guruva risaungane.
Shandisa mhepo inofefetera utsi kana zvimwe zvinhu zveinjiniya kuti mhepo irambe iri pasi pemiganhu inokurudzirwa yekusvibiswa.
Kuchengetera:
Chengeta HEMC munzvimbo inotonhorera, yakaoma kure nehunyoro uye zuva rakananga.
Chengeta midziyo yakavharwa zvakasimba kudzivirira kusvibiswa uye kunyudzwa kwehunyoro.
Chengeta kure nezvinhu zvisingaenderane nazvo zvakaita sezvinokonzera kuoxidation zvine simba.
Kubata Matambudziko:
Dzivisa kugadzira guruva; bata zvinyoro nyoro.
Shandisa nzira dzakakodzera dzakadai sekunyorovesa kana kushandisa muchina wekuunganidza guruva kuderedza zvidimbu zvinobhururuka.
Ita tsika dzakanaka dzekuchengetedza imba kudzivirira guruva kuungana pamusoro.
4. Maitiro Ekudurura Nekuburitsa Mvura
Kudururwa Kudiki:
Tsvaira kana kupukuta zvinhu zvacho wozviisa mumudziyo wakakodzera wekurasa marara.
Dzivisa kutsvaira nepakaoma kuti guruva risapararire; shandisa nzira dzakanyorova kana vacuum cleaners ine HEPA-filtered.
Kudururwa Kukuru:
Budai munzvimbo iyi mobvisa mweya.
Pfekai PPE yakakodzera uye chengetedzai kuti isapararire.
Shandisa zvinhu zvisina simba zvakaita sejecha kana vermiculite kuti unyudze chinhu ichi.
Rasa zvinhu zvakaunganidzwa zvichienderana nemitemo yemuno.
5. Kudzora Kuonekwa Kwevanhu Uye Hutsanana Hwemunhu
Miganhu Yokuratidzwa:
Tevedzera gwara reOccupational Safety and Health Administration (OSHA) kana mitemo yemunharaunda ine chekuita nemiganhu yekusangana nenjodzi.
Hutsanana Hwemunhu:
Geza maoko zvakanaka mushure mekubata HEMC, kunyanya usati wadya, wanwa, kana kusvuta.
Dzivisa kubata kumeso kwako nemagirovhosi kana maoko ane utachiona.
6. Njodzi dzehutano uye Matanho eRubatsiro rwekutanga
Kufema:
Kugara kwenguva refu muguruva reHEMC kunogona kukonzera kutsamwa kwekufema.
Fambisa munhu ane chirwere ichi kuti aende kumhepo yakachena uye tsvaga rubatsiro rwechiremba kana zviratidzo zvikaramba zviripo.
Kubata ganda:
Geza nzvimbo ine chirwere nesipo nemvura.
Tsvaga rubatsiro rwechiremba kana paine kutsamwa.
Kubata Maziso:
Shamba maziso zvakanaka nemvura kwemaminitsi gumi nemashanu.
Bvisa ma contact lenses kana aripo uye zviri nyore kuita.
Tsvaga rubatsiro rwechiremba kana kushatirwa kukaramba kuripo.
Kumedza:
Shamba muromo nemvura.
Usaita kuti munhu arutse kunze kwekunge zvarayirwa nevashandi vezvehutano.
Tsvaga rubatsiro rwechiremba kana ukanwa mvura yakawanda.
7. Njodzi dzeMoto neKuputika
HEMC haibatidzike zvakanyanya asi inogona kutsva kana ikabatwa nemoto.
Matanho Ekudzivirira Moto:
Shandisa mvura inopfapfaidza, furo, kemikari yakaoma, kana kabhoni dhayokisaidhi kudzima moto.
Pfekai zvipfeko zvekudzivirira zvakakwana, kusanganisira mudziyo wekufema wega (SCBA), kana muchirwisa moto une chekuita neHEMC.
Dzivisa kushandisa mvura ine simba rakawanda, iyo inogona kuparadzira moto.
8. Kudzivirira Zvakatipoteredza
Dzivisa Kusunungurwa Kwezvakatipoteredza:
Dzivisa kuburitswa kweHEMC munzvimbo dzakatikomberedza, kunyanya mumvura, sezvo ichigona kukanganisa zvipenyu zvemumvura.
Kurasa:
Rasa HEMC zvichienderana nemitemo yemuno, yenyika, uye yenyika.
Usadururira mvura mumvura usina kurapwa kwakakodzera.
9. Ruzivo rweMutemo
Kunyora uye Kuronga:
Iva nechokwadi chekuti midziyo yeHEMC yakanyorwa zvakanaka zvichienderana nemitemo.
Ziva neSafety Data Sheet (SDS) uye tevedzera gwara rayo.
Kutakura:
Tevedzera mitemo yekutakura HEMC, uchiona kuti makontena akavharwa uye akachengetedzwa.
10. Kudzidziswa neDzidzo
Kudzidziswa kweVashandi:
Ipai dzidziso pamusoro pekubata, kuchengetedza, uye kurasa HEMC nemazvo.
Ita shuwa kuti vashandi vanoziva nezvenjodzi dzinogona kuitika uye matanho anodiwa ekudzivirira.
Maitiro Ekukurumidzira:
Gadzirai uye taurai nezvenzira dzekuti pave nekukurumidzira kana pakaita dambudziko rekudonha kwemvura, kubuda kwemvura, uye kana painenge yasangana nechinhu.
Itai maekisesaizi nguva dzose kuti muve nechokwadi chekuti makagadzirira.
11. Kuchenjerera kwakanangana nezvigadzirwa
Njodzi Dzakanangana Nekugadzira Mushonga:
Zvichienderana nekugadzirwa uye huwandu hweHEMC, mamwe matanho ekudzivirira anogona kudiwa.
Tarisa nhungamiro dzechigadzirwa pamwe chete nekurudziro dzemugadziri.
Nhungamiro dzekushandisa:
Mumishonga, iva nechokwadi chekuti HEMC iri mumhando yakakodzera yekumedzwa kana kubayiwa.
Pakuvaka, ziva guruva rinobuda panguva yekusanganisa nekushandisa.
Nekutevera matanho aya ekuchengetedza, njodzi dzinobatanidzwa nekushandiswa kwehydroxyethyl methylcellulose dzinogona kuderedzwa zvakanyanya. Kuve nechokwadi chekuti nzvimbo yekushandira yakachengeteka haingodziviriri vashandi chete asiwo inochengetedza kunaka kwechigadzirwa nenzvimbo yakapoteredza.
Nguva yekutumira: Chivabvu-31-2024