Misiyano pakati peHydroxypropyl Starch ether neHydroxypropyl Methylcellulose muKuvaka

Hydroxypropyl Starch Ether (HPSE) uyeHydroxypropyl Methylcellulose (HPMC)ese ari maviri marudzi emapolymer anonyungudika nemvura anowanzoshandiswa muindasitiri yekuvaka. Nepo vachigovana zvimwe zvakafanana, pane misiyano mikuru mumagadzirirwo avo emakemikari uye maitiro ekuita. Pazasi pane misiyano mikuru pakati peHydroxypropyl Starch Ether neHydroxypropyl Methylcellulose mumashandisirwo ekuvaka:

1. Kuumbwa Kwemakemikari:

• HPSE (Hydroxypropyl Starch Ether):
  • Yakatorwa kubva kune starch, inova carbohydrate inowanikwa kubva kune dzakasiyana siyana zvirimwa.
  • Yakagadziridzwa kuburikidza nehydroxypropylation kuti iwedzere zvimiro zvayo.
• HPMC (Hydroxypropyl Methylcellulose):
  • Yakatorwa kubva ku cellulose, yakasikwa polymer inowanikwa mumasero madziro emiti.
  • Yakagadziridzwa kuburikidza nehydroxypropylation uye methylation kuti uwane izvo zvinodiwa.

2. Kunobva Material:

• HPSE:
  • Inotorwa kubva kuzvirimwa-based starch masosi, sechibage, mbatatisi, kana tapioca.
• HPMC:
  • Inotorwa kubva kune chirimwa-based cellulose masosi, kazhinji huni pulp kana donje.

3. Solubility:

• HPSE:
  • Kazhinji inoratidza yakanaka solubility yemvura, ichibvumira kupararira kuri nyore mumvura-based formulations.
• HPMC:
  • Yakanyanya kunyungudika mumvura, ichigadzira mhinduro dzakajeka mumvura.

4. Thermal Gelation:

• HPSE:
  • Imwe hydroxypropyl starch ethers inogona kuratidza thermal gelation properties, uko viscosity yemhinduro inowedzera nekushisa.
• HPMC:
  • Kazhinji hairatidze kupisa kwemafuta, uye viscosity yayo inoramba yakagadzikana mumhando dzakasiyana dzetembiricha.

5. Mafirimu-Kuumba Zvivakwa:

• HPSE:
  • Inogona kugadzira mafirimu ane yakanaka kuchinjika uye adhesion zvivakwa.
• HPMC:
  • Inoratidza mafirimu-ekugadzira zvivakwa, zvichibatsira mukunatsiridza kunamatira uye kubatana mukuumbwa kwekuvaka.

6. Basa Mukuvaka:

• HPSE:
  • Inoshandiswa mukuvaka zvikumbiro zvekukora kwayo, kuchengetedza mvura, uye inonamira zvivakwa. Inogona kushandiswa mune gypsum-based zvigadzirwa, dhaka, uye zvinonamira.
• HPMC:
  • Inoshandiswa zvakanyanya mukuvaka nebasa rayo seyakakora, mumiriri wekuchengetedza mvura, uye inosimudzira kushanda. Inowanzo kuwanikwa mune simende-based mortars, mataira adhesives, grouts, uye mamwe magadzirirwo.

7. Kugarisana:

• HPSE:
  • Inopindirana nehuwandu hwezvimwe zvekuwedzera zvekuvaka uye zvinhu.
• HPMC:
  • Inoratidza kuwirirana kwakanaka nezvinhu zvakasiyana-siyana zvekuvaka uye zvinowedzera.

8. Kuisa Nguva:

• HPSE:
  • Inogona kukanganisa nguva yekuseta yemamwe magadzirirwo ekuvaka.
• HPMC:
  • Inogona kukanganisa nguva yekumisikidzwa kwedhaka uye zvimwe zvigadzirwa zvesimende.

9. Kuchinjika:

• HPSE:
  • Mafirimu akaumbwa nehydroxypropyl starch ethers anowanzo shanduka.
• HPMC:
  • Inobatsira kuchinjika uye kusagadzikana kwekutsemuka mumagadzirirwo ekuvaka.

10. Nzvimbo dzekushandisa:

• HPSE:
  • Inowanikwa mune dzakasiyana siyana zvigadzirwa zvekuvaka, zvinosanganisira plaster, putty, uye anonamira maumbirwo.
• HPMC:
  • Inowanzo shandiswa mumasimende-based madhaka, mataira anonamira, grouts, uye zvimwe zvekuvaka.

Muchidimbu, nepo zvose Hydroxypropyl Starch Ether (HPSE) uye Hydroxypropyl Methylcellulose (HPMC) inoshandisa zvinangwa zvakafanana mukuvaka, zvakasiyana-siyana zvemakemikari mabviro, solubility maitiro, uye zvimwe zvinhu zvinoita kuti zvive zvakakodzera kuumbwa kwakasiyana uye kushandiswa mukati meindasitiri yekuvaka. Sarudzo pakati pavo inoenderana nezvinodiwa chaizvo zvekuvaka zvinhu uye inodiwa maitiro ekuita.