Nhanganyaya kuHydroxypropyl Methylcellulose (HPMC)
Hydroxypropyl methylcellulose, inozivikanwa seHPMC, imhando ye cellulose yakagadzirwa kubva mu cellulose yechisikigo. Inoshandiswa zvakanyanya mukuvaka, mishonga, chikafu nemamwe maindasitiri, kunyanya muindasitiri yePVC. Musanganiswa uyu ihupfu huchena, husina hwema hune mvura inonyunguduka zvakanaka uye hune hunhu hwakasiyana-siyana hwemuviri nemakemikari zvinoita kuti ikodzere kushandiswa kwakasiyana-siyana.
Hunhu hwakanaka hwe rheological:
Chimwe chezvinhu zvikuru zvinoitwa neHPMC muindasitiri yePVC imhedzisiro yayo pahunhu hwerheological. Inoshanda senzira yekugadzirisa rheology, ichikanganisa kuyerera uye kushanduka kwemakomputa ePVC panguva yekugadzirisa. Izvi zvakakosha zvikuru mukuita kwekubvisa nekuisa jekiseni.
Wedzera kunamira kwePVC:
HPMC inozivikanwa nekugona kwayo kuvandudza kunamira, izvo muindasitiri yePVC zvinoreva kubatana kuri nani pakati pemakomputa ePVC nezvimwe zvinhu. Izvi zvinonyanya kukosha mukugadzirwa kwemakomputa ePVC nemablends, uko kunamira kwakasimba kweinterfacial kwakakosha pakushanda zvakanaka.
Kuchengetwa kwemvura uye kugadzikana kwayo:
Mumagadzirirwo ePVC, zvakakosha kuchengetedza huwandu hwemvura padanho rakati panguva yekugadzirisa. HPMC inoshanda senzira yekuchengetedza mvura, ichidzivirira kuoma nguva isati yakwana uye ichivimbisa huwandu hwemvura hwakafanana. Izvi zvinonyanya kukosha mukushandiswa uko mamiriro emvura muPVC compound anokanganisa hunhu hwechigadzirwa chekupedzisira.
Mapurogiramu ekuburitsa anodzorwa:
HPMC inowanzoshandiswa pamwe chete nePVC mumhando dzekuburitsa mvura dzakadzorwa. Izvi zvinowanzoitika mukurima uko masisitimu ePVC anoshandiswa kudzora kuburitswa kwefetereza kana mishonga yekuuraya zvipembenene. Hunhu hweHPMC hwekunyungudika hunogara kwenguva refu uye hunofungidzirwa hunobatsira kuburitswa kwemvura kwakadzorwa.
Mhedzisiro pahunhu hwemafirimu ePVC:
Kuwedzera HPMC muPVC formulations kunogona kukanganisa hunhu hwefirimu rinobuda. Izvi zvinosanganisira zvinhu zvakaita sekuchinjika, kujeka uye simba remuchina. Zvichienderana nezvinodiwa zvechigadzirwa chekupedzisira, HPMC inogona kugadziriswa kuti ipe firimu rePVC hunhu hwaunoda.
Kudzivirira tembiricha uye UV:
Zvigadzirwa zvePVC zvinowanzodiwa kuti zvikwanise kutsungirira mamiriro akasiyana-siyana ezvakatipoteredza. HPMC inovandudza mashandiro ePVC nekuwedzera kuramba kwayo kushanduka kwetembiricha uye mwaranzi yeUV. Izvi zvakakosha zvikuru mukushandiswa kwekunze uko PVC inosangana nezuva uye mamiriro ekunze.
Zvisungo uye zvinomisa zvinhu:
HPMC inoshandiswa sechinobatanidza mukugadzira PVC, ichibatsira mukubatana kwezvikamu uye kukurudzira kuumbwa kwezvikamu zvakafanana. Pamusoro pezvo, inoshanda sechinomisa, ichidzivirira zvikamu kuti zvisagadzikane uye ichivimbisa kupararira kwakafanana mukati mePVC matrix.
Gadzirisa chiyero cheresipi:
Kushanda kweHPMC mukushandiswa kwePVC kunowanzoenderana nehuwandu hwekugadzira. Kuenzanisa huwandu hweHPMC nezvimwe zvinowedzera uye resin yePVC kwakakosha kuti chigadzirwa chekupedzisira chive nechimiro chakanaka.
Kuenderana nezvimwe zvinowedzera:
Kuenderana nezvimwe zvinowedzerwa, zvinogadzirisa purasitiki, uye zvinosimbisa chinhu chakakosha pakubatanidza HPMC muPVC formulations. Kuve nechokwadi chekuti HPMC inoshanda pamwe chete nezvimwe zvinhu kwakakosha pakuchengetedza kushanda uye kugadzikana kwePVC compound.
Mamiriro ekugadzirisa:
Mamiriro ekugadzirisa, kusanganisira tembiricha nekumanikidzwa panguva yekuburitsa kana kuumba, zvinogona kukanganisa kushanda kweHPMC. Kunzwisisa kugadzikana kwekupisa uye zvinodiwa pakugadzirisa kweHPMC kwakakosha pakuvandudza maitiro ekugadzira.
mukupedzisa
Muchidimbu, hydroxypropyl methylcellulose ine basa rakawanda muindasitiri yePVC, ichibatsira kuvandudza hunhu hwekugadzirisa, kunamira, kuchengetedza mvura uye kushanda kwese kwezvigadzirwa zvakagadzirwa nePVC. Sezvo indasitiri ichiramba ichichinja, hunhu hweHPMC hunoshamisa hucharamba huchishandiswa mukushandiswa kutsva uye kufambira mberi mutekinoroji yePVC. Sezvo vaongorori nevagadziri vachinyatsoongorora kubatana kuri pakati peHPMC nePVC, mukana wekugadzira mafomu matsva uye zvigadzirwa zvePVC zvakavandudzwa wakakura.
Nguva yekutumira: Zvita-12-2023