nūhou

ʻElua ʻano resins i hoʻohana ʻia e hana i nā composites: thermoset a me thermoplastic.ʻO nā resins Thermoset ka lōʻihi loa o nā resins maʻamau, akā ke loaʻa nei nā resins thermoplastic i ka hoihoi hou ma muli o ka hoʻonui ʻana i ka hoʻohana ʻana i nā composites.
Paʻa ka Thermoset resins ma muli o ke kaʻina hana hoʻōla, e hoʻohana ana i ka wela e hana i nā polymers i hoʻopili nui ʻia i loaʻa nā paʻa paʻa ʻole a i ʻole infusible ʻaʻole heheʻe ke wela.ʻO ka Thermoplastic resins, ma ka ʻaoʻao ʻē aʻe, he mau lālā a i ʻole nā ​​kaulahao o nā monomers e palupalu i ka wā i hoʻomehana ʻia a paʻa i ka wā i maʻalili, kahi kaʻina hoʻohuli ʻaʻole pono i ka pilina kemika.I ka pōkole, hiki iā ʻoe ke hoʻomaʻamaʻa a hoʻoponopono hou i nā resins thermoplastic, akā ʻaʻole nā ​​resins thermoset.

Ke ulu nei ka hoihoi i nā composites thermoplastic, ʻoi aku hoʻi i ka ʻoihana automotive.

Nā pōmaikaʻi o nā Resins Thermosetting
ʻO nā resins Thermoset e like me ka epoxy a i ʻole polyester i makemake ʻia i ka hana composite ma muli o ko lākou haʻahaʻa haʻahaʻa a me ke komo maikaʻi ʻana i ka ʻoihana fiber.No laila hiki ke hoʻohana i nā fiber hou aʻe a hoʻonui i ka ikaika o ka mea i hoʻopau ʻia.

ʻO ka hanauna hou loa o nā mokulele e hoʻokomo ma mua o 50 pakeneka o nā mea hoʻohui.

I ka wā o ka pultrusion, hoʻokomo ʻia nā fibers i loko o kahi resin thermoset a waiho ʻia i loko o kahi ʻōpala wela.Hoʻoikaika kēia hana i ka hopena ho'ōla e hoʻohuli i ka resin haʻahaʻa-molecular-weight i loko o kahi ʻano pūnaewele paʻa ʻekolu-dimensional kahi i hoʻopaʻa ʻia ai nā fibers i loko o kēia pūnaewele hou.No ka mea he exothermic ka hapa nui o ka ho'ōla ʻana, hoʻomau kēia mau hopena ma ke ʻano he kaulahao, e hiki ai i ka hana nui.Ke hoʻonohonoho ʻia ka resin, hoʻopaʻa ka hale ʻekolu-dimensional i nā fibers a hāʻawi i ka ikaika a me ka ʻoʻoleʻa i ka composite.