Kuchena kweHydroxyPropyl methylcellose mukuvaka mongororo yakanangana nemhando yekuvaka yeinjiniya, saka ndezvipi zvinhu zvinokanganisa kuchena kwehydroxpressl metrylcellose? Rega ndipindure uyu mubvunzo kwauri.
Mukutonga kwekugadzira hydroxypropyl methylcellose, iyo okisiligation oksijeni iri mucherechedzo wehydroxyprosyl Iyo inonyanya kukosha mvura yekuwedzera chiyero ine zvakawanda zvekuita nezviri mukati mehydroxyprupropropyl. Some factories only want to reduce the cost and price, but do not want to increase the content of hydroxypropyl, so the quality cannot reach the level of similar foreign products.
The water retention rate of hydroxypropyl methylcellulose also has a great relationship with hydroxypropyl, and for the entire reaction process, hydroxypropyl also determines the water retention rate of hydroxypropyl methylcellulose. Mhedzisiro yeAlkalization, iyo ratio ye methyl chloride uye profylene oxide, kusunganidzwa kweAlkali uye huwandu hwemvura kuti dzive rakanatswa zvese zvaisarudza kuita kwechigadzirwa.
Mhando yezvinhu zvishandiso, mhedzisiro yeayo, iyo ratio kutonga kweiyo solvent Mukaka, vamwe vaive chena Milky, vamwe vaive vellowish, uye vamwe vaive vakajeka uye vaone pachena. Kana iwe uchida kuzvigadzirisa, gadzirisa kubva pane zviri pamusoro apa. Dzimwe nguva acetic acid inogona kukanganisa zvakanyanya kujekesa. Zvakanaka kushandisa acetic acid mushure mekudhura. Simba rakakura nderekuti kuita kwakamutswa zvakaringana uye kana iyo system ratio yakagadzikana (zvimwe zvinhu zvine musoro uye zvirimo hazvina kugadzikana, zvakadai sekudzokorora solimes). Muchokwadi, zvakawanda zvinhu zviri kutamba. Nekugadzikana kwemidziyo uye kushanda kwevashandi vakanyatsodzidziswa, zvigadzirwa zvinogadzirwa zvinogadzikana kwazvo. Iko kujekesa kwechiedza hakuzopfuure huwandu hwe ± 2%, uye kutsiva kusaenzana kwemapoka akashata anofanirwa kudzorwa zvakanaka. Panzvimbo pekufanana, kuputika kwechiedza kungave kwakanaka.
Kutumira Nguva: May-30-2023