TGIC pani pani i ka pauka-Hydroxyalkylamide(HAA)

Hydroxyalkylamide(HAA) TGIC Hoʻololi kemika

No ka maopopo ʻole o ka wā e hiki mai ana o TGIC, ke ʻimi nei nā mea hana i kahi hoʻololi like no ia. Ua hoʻolauna ʻia nā curatives HAA e like me Primid XL-552, i hoʻomohala ʻia a hōʻailona ʻia e Rohm a me Haas. ʻO ka hopena nui o ia mau mea paʻakikī, ʻoiai ʻo kā lākou hana hoʻōla he hopena condensation, hiki i nā kiʻiʻoniʻoni ke kūkulu i ka mānoanoa ma mua o 2 a 2.5 mils (50 a 63 microns) ke hōʻike i ka outgassing, pinholing, a me ka maikaʻi ʻole o ka kahe a me ka pae. He ʻoiaʻiʻo kēia inā hoʻohana ʻia kēia mau curatives me nā polyesters carboxy maʻamau i hoʻolālā ʻia no nā hui pū ʻana o TGIC.
ʻO nā hanauna hou o nā polyesters carboxy, hoʻomohala ʻia a hoʻomohala ʻia e EMS, Hoechst Celanese, a me Ruco, no ka hoʻohana ʻana me Primid XL-552, e hoʻēmi i ka hapa nui o kēia mau pilikia, akā naʻe. hoʻomaikaʻi ʻia ma ka hoʻohana ʻana i ka nui o ka mea paʻakikī ma mua o stoichiometric. Hiki ke hoʻokō ʻia nā hopena like me ka hoʻohui ʻana i kahi mea liʻiliʻi o ka isophorone diisocyanate (IPDI) i hoʻopaʻa ʻia i kahi ʻōnaehana stoichiometric Primid piha, kahi e neut pono ai.ralizes kekahi o ka HAA. Eia kekahi, ʻo ka ʻikepili i hōʻiliʻili ʻia ma hope o ka hōʻike ʻana i ka hanauna hou o ka carboxy polyester/HAA a me ka ʻōnaehana carboxyl polyester TGIC kuʻuna a kiʻekiʻe hoʻi i ka lā o Florida no 2 mau makahiki e hōʻike ana i kēia mau chemistries weather like. A ʻo ka hoʻāʻo ʻana ʻo Florida a mākou i alakaʻi ai e hōʻike ana i nā ʻōnaehana Primid like ʻole e hōʻike i ka liʻiliʻi o ka pohō-o-gloss fluctuations e like me nā ʻōnaehana TGIC maʻamau i loaʻa ka pigmentation like a me ka ʻike piha.
Hiki i kekahi mau mea hoʻohui surfactant ke ʻae i nā kiʻiʻoniʻoni e kūkulu a hiki i 3 mils (75 microns) me ka ʻole o ka hōʻike ʻana i ka outgassing a i ʻole nā ​​pilikia nui o ka ʻili. Hoʻohui ʻia nā pūhui diphenoxy me benzoin i loko o nā kemika carboxy polyester HAA no ka maikaʻi o ke kiʻiʻoniʻoni a me ka emi ʻana o ka melemele.
Hiki i kekahi mau ʻōnaehana carboxy polyester / HAA hou ke ho'ōla piha a lawa paha i nā mahana e like me ka haʻahaʻa o 138C no 20 mau minuke, ʻoiai ke hoʻohana ʻia nā ratio piha o ka resin stoichiometric i ka hardener. ʻO nā pauka i hoʻokumu ʻia mai kēia mau ʻōnaehana i hiki ke hoʻopili ʻia no nā substrate nonmetallic.

Hydroxyalkylamide(HAA)