Hydroxypropyl starch ether-HPS

Hydroxypropyl starch ether (HPS) chinhu chinogadzirwa ne starch chakagadziriswa nemakemikari chinoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana nekuda kwehunhu hwacho hwakasiyana. Musanganiswa uyu unowanikwa nekuita starch ne propylene oxide, zvichiita kuti mapoka e hydroxyl atsiviwe mu starch molecule nemapoka e hydroxypropyl. Chigadzirwa chinobuda chinoratidza kunyungudika kwemvura, kugadzikana, viscosity, uye hunhu hwekugadzira firimu zvichienzaniswa ne starch yemuno.

1. Maumbirwo uye Hunhu:

Hydroxypropyl starch ether ine chimiro chakaomarara chinobva mukuchinjwa kwemorekuru yestarch. Starch ipolysaccharide inoumbwa nemayuniti eglucose akabatana neglycosidic bonds. Maitiro ehydroxypropylation anosanganisira kutsiviwa kwemapoka ehydroxyl (-OH) mumorekuru yestarch nemapoka ehydroxypropyl (-OCH2CHOHCH3). Kuchinjwa uku kunochinja hunhu hwemuviri uye hwemakemikari hwestarch, zvichipa hunhu huri nani.

Dhigirii rekutsiva (DS) iparameter inokosha inosarudza huwandu hwehydroxypropylation. Inomiririra avhareji yehuwandu hwema hydroxypropyl groups akabatanidzwa kune yega yega glucose unit mu starch molecule. DS values ​​dzakakwirira dzinoratidza mwero mukuru wekuchinja, zvichikonzera shanduko huru mu starch properties.

2. Hydroxypropyl starch ether ine hunhu hwakasiyana hunodiwa:

Kunyungudika Kwemvura: HPS inoratidza kunyungudika kwakanyanya mumvura zvichienzaniswa nestarch yemuno, zvichiita kuti ikwanise kushandiswa kwakasiyana-siyana uko kunodiwa mafomura emvura.

Kusimba: Kuvapo kwemapoka ehydroxypropyl kunoita kuti HPS solutions dziwedzere kusimba, izvo zvinobatsira mukuita kuti dzisimbiswe zvakanyanya semumaglues, macoatings, uye zvinhu zvekuvaka.

Kugona Kugadzira Mafirimu: HPS inogona kugadzira mafirimu anochinjika uye akajeka kana yaoma, zvichipa hunhu hwekudzivirira uye hunodzivirira hunyoro. Hunhu uhwu hunokosha mukushandiswa kwakadai semafirimu anodyiwa, machira, uye zvinhu zvekurongedza.

Kugadzikana: Hydroxypropyl starch ether inoratidza kugadzikana kwakawedzerwa pakupisa, kucheka, uye kuora kwemakemikari zvichienzaniswa nestarch yemuno, zvichiwedzera kushandiswa kwayo munzvimbo dzakasiyana-siyana uye maitiro.

Kuenderana: HPS inoenderana nemhando dzakasiyana dzezvinhu zvinowedzerwa, mapolymer, uye zvinhu zvinoshandiswa, zvichiita kuti ishandiswe mumafomula ane zvinhu zvakaoma kunzwisisa.

3. Mashandisirwo:

Hydroxypropyl starch ether inoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana nekuda kwehunhu hwayo hunoshandiswa zvakasiyana-siyana. Mamwe emashandisirwo akakosha anosanganisira:

Zvinhu Zvokuvaka: HPS inoshandiswa semuchina wekugadzirisa rheology, muchina wekuomesa, uye muchina wekuchengetedza mvura muzvigadzirwa zvesimende, gypsum plasters, tile glues, uye mortars. Inovandudza kushanda, kunamira, uye hunhu hwemakanika ezvinhu izvi.

Chikafu Nezvinwiwa: Muindasitiri yezvekudya, HPS inoshandiswa sechinhu chinosimbisa, chinosimbisa, uye chinogadzirisa texturizer muzvigadzirwa zvakaita semasobho, masosi, zvinwiwa zvemukaka, uye zvinhu zvekubika. Inowedzera kunzwa kwemuromo, kugara zvakanaka, uye kugara zvakanaka pasherufu pasina kukanganisa kuravira kana kunhuhwirira.

Mishonga: Hydroxypropyl starch ether inoshandiswa mumishonga semushonga unosunga, unobvisa utachiona, uye unodzorwa mukugadzirwa kwepiritsi. Inobatsira pakumanikidzwa kwepiritsi, inokurudzira kuburitswa kwemishonga zvakaenzana, uye inovandudza kutevedzera zvinodiwa nemurwere.

Zvigadzirwa Zvekuchengetedza Munhu: HPS inosanganiswa muzvizoro, zvekugezesa, uye zvigadzirwa zvekuchengetedza munhu sechinosimbisa, chinosanganisa, uye chinoisa firimu. Inovandudza magadzirirwo echigadzirwa, kugadzikana, uye hunhu hwepfungwa muzvigadzirwa zvakaita semakirimu, mafuta ekuchenesa, uye zvigadzirwa zvekuchengetedza bvudzi.

Mapepa Nemachira: Muindasitiri yemapepa, HPS inoshandiswa semushonga wekuwedzera saizi pamusoro, muchina wekubatanidza machira, uye muchina wekusimbisa simba remapepa kuti ivandudze kunaka kwepepa, kugona kudhindwa, uye hunhu hwesimba. Mumachira, inoshandiswa semushonga wekuwedzera saizi kuti machira anyatsosimba uye anyatsotsvedzerera.

4. Mabhenefiti:

Kushandiswa kwehydroxypropyl starch ether kunopa mabhenefiti akawanda kune vagadziri, vanogadzira, uye vashandisi vekupedzisira:

Kushanda Kwakavandudzwa: HPS inovandudza kushanda kwezvigadzirwa zvakasiyana-siyana nekupa hunhu hwakanaka hwakadai sekudzora kusimba, kugadzikana, kunamira, uye kugadzirwa kwefirimu.

Kuchinja-chinja: Kuenderana kwayo nezvimwe zvinhu uye zvinhu zvinobvumira mafomura akasiyana-siyana mumaindasitiri akasiyana-siyana, zvichigonesa kugadzirwa kwezvigadzirwa zvitsva.

Kushanda Nemutengo Wakanaka: Pasinei nehukuru hwayo, HPS inopa mhinduro dzinodhura zvishoma kana tichienzanisa nezvimwe zvinowedzerwa kana zvinhu, zvichibatsira mukuchengetedza mari yakawanda mukugadzirwa kwemishonga.

Kutevedzera Mutemo: HPS inosangana nemitemo yekuchengetedzwa, mhando, uye kuenderana kwezvakatipoteredza, ichivimbisa kutevedzera mitemo nemitemo inoshanda munzvimbo dzakasiyana.

Kugara kwenguva refu: Zvinhu zvinobva musitachi zvakaita seHPS zvinobva muzvinhu zvinogona kushandiswazve, zvichiita kuti zvive nzira dzisingakuvadzi nharaunda

zvinowedzerwa zvinobva mupetroleum. Kuora kwazvo kunowedzerawo kubatsira mukuchengetedza nharaunda.

hydroxypropyl starch ether (HPS) chinhu chinoshandiswa zvakasiyana-siyana uye chinokosha chine mashandisirwo akasiyana-siyana mumaindasitiri akasiyana-siyana kubva pakuvaka nechikafu kusvika kumishonga nekutarisira munhu. Hunhu hwayo hwakasiyana, kusanganisira kunyunguduka kwakawedzerwa, kusimba, kugadzikana, uye kugona kugadzira firimu, zvinoita kuti ive chinhu chakakosha mumhando dzakasiyana-siyana. Sezvo maindasitiri achiramba achitsvaga zvinhu zvinogara kwenguva refu uye zvinoshanda zvakanyanya, kudiwa kweHPS kunotarisirwa kukura, zvichitungamira hunyanzvi hutsva uye mashandisirwo mune ramangwana.