ʻO Hydroxypropyl Methylcellulose ma ke ʻano he mau mea hoʻokaʻawale, nā huahana i loaʻa he mau ʻāpana i hoʻonohonoho ʻia a wehe ʻia, ka mānoanoa kūpono a me ka hana hana maikaʻi loa. Eia nō naʻe, ʻo ka hoʻohana ʻana i ka Hydroxypropyl Methylcellulose wale nō hiki ke kōkua i ka invariance maikaʻi o ka resin. ʻO ka hana holoʻokoʻa o ka resin he haʻahaʻa. ʻO ka hoʻohana pū ʻana o ka hydroxypropyl methylcellulose a me kekahi mau ʻano alcoholysis like ʻole o ka polyvinyl alcohol hiki ke hoʻomaikaʻi i ka hana o nā huahana, maʻalahi ka hoʻomalu ʻana i ka maikaʻi a i ka manawa like hiki ke hōʻemi i ke kumukūʻai. ʻO ka mea hoʻolaha ka mea nui e hoʻohuli i ke ʻano o ka ʻāpana o ka polyvinyl chloride resin. ʻO ka liʻiliʻi o ka tension ʻili o ka wai o nā mea hoʻolaha maʻamau a me ka tension interfacial me ka Vinyl chloride monomer, ʻoi aku ka maikaʻi o ka hoʻolaha ʻana o nā kulu VCM. A pēlā e liʻiliʻi ai ke anawaena o ka ʻāpana o ka resin PVC. ʻO ka ikaika o ka hiki ke pale o ka mea hoʻolaha, ʻoi aku ka kokoke o nā ʻāpana resin PVC i loaʻa a ʻoi aku ka liʻiliʻi o ka porosity. A ʻoi aku ka paʻakikī o ka coalescence intergranular, no laila he maʻalahi ke hana i nā resins.
No ka laʻana, i loko o ka ʻōnaehana hoʻopuehu hui o PVA a me HPC, ʻo ke kiʻekiʻe o ke kekelē alcoholysis o PVA, ʻo ka nui o ka ʻili o ka hopena wai a ʻoi aku ka ikaika o ka hiki ke pale, ʻoiai ʻo kahi ʻano o ka hydroxypropyl methylcellulose he hopena hoʻopuehu maikaʻi. No laila, ʻo ka hoʻohana ʻana i ka PVA me ke kekelē alcoholysis kiʻekiʻe ma ke ʻano he mea mua
mea hoʻopuehu, a me ka hoʻohuihui ʻana i kahi
kekahi nui o ka hydroxypropyl methylcellulose
Ma ke ʻano he mea hoʻopuehu no ka polymerization suspension, ʻoi aku ka maʻalahi o ka hoʻomākaukau ʻana i ka resin PVC e hiki ke hoʻokō i nā koi o ke ʻano o ka ʻāpana. No ka laʻana, i loko o ka ʻōnaehana hoʻopuehu hui o PVA a me HPC, ʻo ke kiʻekiʻe o ke kekelē alcoholysis o PVA, ʻoi aku ka nui o ka ʻili o ka hopena wai a ʻoi aku ka ikaika o ka hiki ke pale, ʻoiai kahi ʻano o ka hydroxypropyl methylcellulose he hopena hoʻopuehu maikaʻi.
Ka manawa hoʻouna: Malaki-17-2022