ʻO ka rosin keʻokeʻo wai a me ka rosin hydrogenated he rosin i hoʻololi ʻia o ka rosin maoli.
ʻAʻole ʻo Rosin he hui hoʻokahi, akā he hui kemika:
Loaʻa iā Rosin ma kahi o 80% o ka rosin anhydride a me ka ʻakika rosin, ma kahi o 5 a 6% o ka resin hydrocarbon, ma kahi o 0.5% o ka aila volatile a me nā mea ʻawaʻawa.
ʻO ka rosin hydrogenated:
No ka mea he maʻalahi ka hoʻoheheʻe ʻia o ka rosin, a ʻo ka resin hydrocarbon i loko o kāna ʻano molecular i loaʻa i nā conjugated pālua paʻa, he kiʻekiʻe reactivity, instability a me ka maʻalahi oxidation. I mea e hoʻomaikaʻi ai i kona kūpaʻa ʻana, hiki ke hoʻomākaukau ʻia ka rosin hydrogenated ma ka hana ʻana i ka rosin me ka hydrogen ma lalo o nā kūlana catalyzed kaomi.
Wai keʻokeʻo rosin:
ʻO ka rosin keʻokeʻo wai he polyol rosin me ke kala māmā loa. Hana ʻia ia mai ka rosin i hoʻomaʻemaʻe ʻia e like me ke kumu kumu ma o ka hydrogenation, esterification a me ka stabilization. Loaʻa iā ia nā mea maikaʻi o ka wai keʻokeʻo, ke kūpaʻa ʻelemakule maikaʻi a me ka launa maikaʻi me nā mea polymer, hiki ke hoʻokō i nā pono kūikawā o ka ʻoihana adhesive.
Hiki ke ʻike ʻia ʻo ka hoʻomākaukau ʻana i ka wai keʻokeʻo rosin pono e hele i ka ʻanuʻu o ka hydrogenation rosin, akā ʻaʻole i kaupalena ʻia i ka pae o ka hydrogenation, he huahana hoʻomaʻemaʻe maikaʻi loa.
