Hoʻoheheʻe a me nā'āpana o ka asphalt: No ke aha ke kumu e lūlū ai i nā wela kiʻekiʻe? ​​

ʻO Asphalt, kahiʻano paʻakikī o nā hydrocarbons, lacks i kahi kuhikuhi manio ma muli o kānaʻano heterogeneous. Ma kahi, ua hōʻikeʻo ia i kahi kūlana nui (maʻamau 40-0-60 ° C no nā mea e hele ai i nā mea e hele ai i nā mea kūʻai aku. Ua hana kēiaʻano hana mai kānaʻano collodal:

Molecular Dynacles: I nā kiʻekiʻe kiʻekiʻe,ʻoi aku ka nui o ka nui o ka aila (marktentes) i loko o ka asphall i loko o ka bolid asphaltene matrix. Hoʻemi kēia i nā hana o nā batermolecular, e hoʻokau ana.
ʻO kaʻoluʻolu o keʻano:ʻO ka viscosity asphalt i hāʻule i ka wela me ka wela. Ke laʻana, ma 60 ° C, ma lalo o ka asphalt maʻamauʻo Ashpalt e nalowale iā 90% o kāna mau pila, e alakaʻi ana e hoʻopaʻi i lalo o nā ukana mokulele. Hoʻololiʻia nā asphalts (E.G.
Ka hōʻiliʻili a me ka decomposition:
Nā decomposes asphalt ma mua o ka hōʻeaʻana i kahi pānaʻi kūpono (ma lalo o 470 ° C), e hoʻokuʻu ana i nā kikowaena Bestixne. No laila, he mea liʻiliʻi loa ka pākaukau ma mua o ka flash point (~ 204 ° c)

Nā Kūlana Pono:

ʻAʻole hiki i nā hemahema: Ma ke kauwela wela loa ma mua o 50 ° C e hiki i ka nothilt
Nā hopena: E hoʻohana i nā mea i hoʻololiʻia
I ka hōʻuluʻuluʻana,ʻo Asphalt soltens ma muli o ka collidal breakdown a me keʻano he haʻahaʻa loa, e pono ai i nā mea kūʻai aku no ka loaʻaʻole.