Polyvinyl Chloride (PVC)

I loko o ka polymerization hoʻokuʻu ʻia o ka vinyl chloride, loaʻa i ka ʻōnaehana hoʻopuehu kahi hopena pololei i ka huahana, ka resin PVC, a ma ke ʻano o kāna hana ʻana a me nā huahana. Kōkua ʻo Hydroxypropyl MethylCellulose i ka hoʻomaikaʻi ʻana i ke kūpaʻa wela o ka resin a kāohi i ka hoʻolaha ʻana o ka nui o ka ʻāpana (ma nā huaʻōlelo ʻē aʻe, hoʻoponopono i ka nui o ka PVC), a ʻo kona nui he 0.025% -0.03% o ka hana PVC. ʻO ka resin PVC i hana ʻia mai ka Hydroxypropyl MethylCellulose kiʻekiʻe kiʻekiʻe ʻaʻole hiki ke hōʻoia i ka laina hana me nā kūlana honua, akā hiki ke loaʻa nā waiwai kino maikaʻi, nā waiwai ʻāpana maikaʻi loa a me ke ʻano rheological hoʻoheheʻe maikaʻi loa.

He mea paʻa loa ka PVC a lōʻihi ke ola i hiki ke hoʻohana ʻia i nā ʻano hana like ʻole, ʻoʻoleʻa a palupalu paha, keʻokeʻo a ʻeleʻele paha a me nā ʻano kala like ʻole ma waena.

I ka hana ʻana o nā resins synthetic, e like me ka polyvinyl chloride (PVC), polyvinylidene chloride, a me nā copolymers ʻē aʻe, ʻo ka polymerization suspension ka mea i hoʻohana pinepine ʻia a pono e lilo i mau monomers hydrophobic invariant i hoʻokuʻu ʻia i loko o ka wai. Ma ke ʻano he polymers wai-soluble, loaʻa i ka huahana Hydroxypropyl MethylCellulose ka hana ʻili maikaʻi loa a hana ma ke ʻano he mau mea pale colloidal. Hiki i ka Hydroxypropyl MethylCellulose ke pale pono i nā ʻāpana polymeric mai ka hana ʻana a me ka agglomeration. Eia kekahi, ʻoiai ʻo Hydroxypropyl MethylCellulose kahi polymer wai-soluble, hiki ke hoʻoheheʻe iki ʻia i loko o nā monomers hydrophobic a hiki ke hoʻonui i ka monomer porosity no ka hana ʻana o nā ʻāpana polymeric.