I ke kaʻina hana o ka plasticizing plastic raw material, hoʻokahi a ʻoi aʻe paha o nā kūlana e like me ka rheology o polymers a me nā loli i nā waiwai kino a me nā kemika, i hōʻike pinepine ʻia e nā waiwai aʻe:
1. Waiwai: Hiki ke hoʻoholo ʻia ka wai o nā thermoplastics mai nā ʻano helu e like me ke kaumaha molekala, melt index, Archimedes spiral flow long, aparent viscosity and flow ratio (lōʻihi kaʻina hana/ka mānoanoa pā plastik).kālailai.
2. Crystallinity: ʻO ka mea i kapa ʻia ʻo crystallization phenomena e pili ana i ke ʻano o ka hoʻololi ʻana o nā molekala o ka plastic mai ka neʻe manuahi a hoʻokaʻawale loa i nā molekala e hoʻōki i ka neʻe manuahi a hoʻonohonoho ʻia i kahi kūlana paʻa iki e hana i ke ʻano hōʻike molekala mai ka mea hoʻoheheʻe. mokuʻāina i ka condensation.
3. Heat sensitivity: Heat sensitivity 'o ia hoʻi, ʻoi aku ka maʻalahi o kekahi mau plastics i ka wela.Ke lōʻihi ka manawa hoʻomehana i ka wela kiʻekiʻe a i ʻole ka nui o ka hopena shearing, piʻi ka mahana o ka mea a hiki i ka discoloration a me ka decomposition.Ke hoʻoheheʻe ʻia nā palaka wela, hana ʻia nā huahana like ʻole e like me nā monomers, nā kinoea, a me nā mea paʻa.ʻO ka mea nui, ʻo kekahi mau kinoea decomposed he mea hoʻonāukiuki, ʻino a ʻona paha i ke kino o ke kanaka, nā lako, a me nā poni.
4. ʻO ka hydrolysis maʻalahi: ʻOiai inā he liʻiliʻi ka wai i loko o kekahi mau plastics, e decompose lākou ma lalo o ka wela kiʻekiʻe, ke kaomi kiʻekiʻe, a ua kapa ʻia kēia waiwai i ka hydrolysis māmā.Pono e hoʻomaloʻo ʻia kēia mau ʻilika (e like me ka polycarbonate).
5. ʻO ke koʻikoʻi o ke kaumaha: ʻO kekahi mau plastics ua maʻalahi i ke koʻikoʻi, a ua maʻalahi i ke koʻikoʻi o loko i ka wā e hoʻoheheʻe ʻia ai, kahi palupalu a maʻalahi hoʻi ka māwae, a i ʻole nā ʻāpana plastik i haki ma lalo o ka hana o ka ikaika o waho a i ʻole ka solvent.Ua kapa ʻia kēia ʻano he stress cracking.
6. He'e hehee: 'O ka polymer hehee me kekahi kahe kahe ana e hele ma ka puka nozzle ma ka wela mau.Ke ʻoi aku ka nui o ke kahe i kekahi waiwai, ʻike ʻia nā māwae transverse ma ka ʻili heheʻe, i kapa ʻia ʻo melt fracture.Ke koho ʻia ka kahe kahe o ka hehee I ka wā e hana ai i nā mea plastik kiʻekiʻe, pono e hoʻonui ʻia nā nozzles, nā kukini, a me nā awa hānai e hōʻemi i ka wikiwiki o ka injection a me ke kaomi, a hoʻonui i ka mahana o nā mea.
Nā kuhikuhi
[1] Zhong Shuheng.Hui kala.Pekina: China Art Publishing House, 1994.
[2] ʻO Song Zhuoyi et al.ʻO nā mea palaki a me nā mea hoʻohui.Pekina: ʻEpekema a me ʻenehana Literature Publishing House, 2006.
[3] Wu Lifeng et al.Palapala Hoʻohana Masterbatch.Pekina: ʻOihana Kemimi, 2011.
[4] ʻO Yu Wenjie et al.Pākuʻi Pākuʻi a me ka ʻenehana Hoʻolālā Hoʻolālā.3rd Edition.Pekina: ʻOihana Kemimi, 2010.
[5] Wu Lifeng.Hoʻolālā kala ʻulaʻula.2nd Edition.Pekina: ʻOihana Kemimi, 2009
Ka manawa hoʻouna: Iune-18-2022