ʻO Polypropylene PP 5090T kiʻekiʻe a ʻike maopopo

(ningbo) Taiwan Formosa Plastics pp5090t hoʻohana nui:
ʻO PP kahi mea semi crystalline.ʻOi aku ka paʻakikī ma mua o ka PE a ʻoi aku ka nui o ka heheʻe.No ka mea he palupalu loa ka ʻano homopolymer PP ke emi ka mahana ma lalo o 0 ℃, nui nā mea pāʻoihana PP he copolymers maʻamau me 1-4% ethylene a i ʻole clamp type copolymers me ka ethylene kiʻekiʻe.ʻO ka mea copolymer type PP he haʻahaʻa haʻahaʻa haʻahaʻa wela (100 ℃), haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa a haʻahaʻa haʻahaʻa, akā ʻoi aku ka ikaika o ka hopena.

ʻO ka kahe kahe MFR o PP mai ka 1 a hiki i ka 40. ʻO ka PP me ka MFR haʻahaʻa he ʻoi aku ka maikaʻi o ka hopena akā ʻoi aku ka ikaika o ka tensile.No nā mea me ka MFR like, ʻoi aku ka ikaika o ke ʻano copolymer ma mua o ka ʻano homopolymer.Ma muli o ka crystallization, ʻoi aku ka kiʻekiʻe o ka shrinkage rate o PP, maʻamau 1.8-2.5%.A ʻoi aku ka maikaʻi o ka hoʻohālikelike ʻana o ka shrinkage ma mua o ka PE-HD a me nā mea ʻē aʻe.ʻO ka hoʻohui ʻana i ka 30% aniani additive hiki ke hōʻemi i ka shrinkage i 0.7%.

ʻO ka ʻano homopolymer a me ka copolymer type PP nā mea hoʻonaninani maikaʻi loa i ka hoʻoheheʻe ʻana i ka wai, ke kūpaʻa ʻana o ka waika-base a me ke kūpaʻa dissolution.Eia nō naʻe, ʻaʻohe ona kūʻē i ka wai ʻala ʻala (e like me benzene) ka mea hoʻoheheʻe a me ka mea hoʻoheheʻe chlorinated hydrocarbon (carbon tetrachloride).ʻAʻole loaʻa i ka PP ka pale oxidation i ka wela kiʻekiʻe e like me ka PE.
Wahi a ka hana i luna, kūpono ʻo PP no nā huahana aʻe:
1. Injection: valves, accessories, crates, automobiles, closures, electrical appliances, water bottles, food Containers, home goods, toys, non pre filled syringes.
2. Extrusion: pepa mānoanoa, pepa, paipu, mauʻu, lipine paʻa, pepa palapala, BOPP kiʻiʻoniʻoni Pepa a me ke kāʻei.
3. Puhi ʻana: ʻōmole.
4. Thermoforming: pā, kīʻaha, kīʻaha jelly, kīʻaha wai.
5. ʻO ka ʻeke palahalaha: ʻeke ulana, ʻeke pahu, kāpeti.