He aha nā ʻano o ka Polypropylene (PP)?

ʻO kekahi o nā waiwai nui loa o ka polypropylene:
1.Chemical Resistance: ʻAʻole hiki ke hoʻololi i nā kumu i hoʻoheheʻeʻia a me nā waikawa me ka polypropylene, kahi i koho maikaʻiʻia no nā pahu o ia mau wai, e like me nā mea hoʻomaʻemaʻe, nā mea kōkua mua, a me nā mea'ē aʻe.
2. Elasticity a me Toughness: E hana ana ka Polypropylene me ka elasticity ma luna o kekahi ʻano o ka deflection (e like me nā mea a pau), akā e ʻike pū kekahi i ka deformation plastic i ka wā mua ma ke kaʻina deformation, no laila ua manaʻo ʻia he mea "paʻakikī". ʻO ka paʻakikī kahi huaʻōlelo ʻenekinia i wehewehe ʻia e like me ka hiki ke hoʻololi ʻia (ka plastik, ʻaʻole elastically) me ka ʻole o ka haki ʻana.
3.Fatigue Resistance: Hoʻomau ka Polypropylene i kona ʻano ma hope o ka nui o ka torsion, ka kulou, a / a i ʻole ka flexing. He waiwai nui kēia waiwai no ka hana ʻana i nā hinges ola.
4.Insulation: ʻO ka polypropylene he kū'ē kiʻekiʻe loa i ka uila a he mea pono loa ia no nā mea uila.
5.Transmissivity: ʻOiai hiki ke hana ʻia ka Polypropylene i akaka, hana maʻamau ia i ke kala opaque maoli. Hiki ke hoʻohana ʻia ka polypropylene no nā noi i mea nui ka hoʻololi ʻana o ke kukui a i ʻole kahi waiwai aesthetic. Inā makemake ʻia ka transmissivity kiʻekiʻe a laila ʻoi aku ka maikaʻi o nā plastics e like me Acrylic a i ʻole Polycarbonate.
Hoʻokaʻawale ʻia ka Polypropylene ma ke ʻano he "thermoplastic" (e kūʻē i ka "thermoset") mea pili i ke ʻano o ka pane ʻana o ka plastic i ka wela. Lilo nā mea Thermoplastic i ka wai ma ko lākou wahi heheʻe (ma kahi o 130 degere Celsius i ka hihia o polypropylene).
ʻO kahi hiʻohiʻona koʻikoʻi e pili ana i nā thermoplastics ʻo ia ka hiki ke hoʻomehana ʻia a hiki i ko lākou wahi heheʻe, hoʻomaloʻo, a hoʻomaʻamaʻa hou ʻia me ka ʻole o ka pōʻino nui. Ma kahi o ka puhi ʻana, nā thermoplastics e like me ka polypropylene liquefy, kahi e hiki ai iā lākou ke hoʻoheheʻe maʻalahi ʻia a laila hana hou ʻia.
ʻO ka ʻokoʻa, hiki ke hoʻomehana ʻia nā plastik thermoset i hoʻokahi wale nō (maʻamau i ka wā o ke kaʻina hana hoʻoheheʻe). ʻO ka hoʻomehana mua ka mea e hoʻonohonoho ai i nā mea thermoset (e like me ka epoxy 2-hapa) i hopena i kahi loli kemika ʻaʻole hiki ke hoʻohuli ʻia. Inā ʻoe e hoʻāʻo e wela i kahi plastik thermoset i kahi wela kiʻekiʻe i ka lua o ka manawa, e ʻā wale ia. Hoʻopilikia kēia ʻano i nā mea thermoset i nā moho no ka hana hou ʻana.