ʻatikala ʻepekema kaulana: Introduction to the basics of plastics (2)

ʻatikala ʻepekema kaulana: Introduction to the basics of plastics (2)

E hahai i ka ʻāpana i ʻōlelo ʻia i ka manawa hope.ʻO kaʻu e kaʻana aku nei iā ʻoe i kēia lā: nā ʻano kumu a me nā hoʻohana ʻana o nā ʻano plastik nui.
1. ʻO ka Polyethylene–Polyethylene ka maʻalahi, nā waiwai dielectric maikaʻi loa a me ke kūpaʻa kemika, ka hiki ke hoʻoheheʻe ʻia, akā ʻaʻohe rigidity.
ʻO kona hoʻohana maʻamau i loko o nā mea a me nā huahana pale-corrosion kemika, nā ukana liʻiliʻi, nā bearings, a me nā mea ʻē aʻe, ka uea a me ke kaula sheathing a me nā mea e pono ai i kēlā me kēia lā.
2. ʻO ka Polypropylene–Polypropylene ka maikaʻi o ka corrosion resistance, mechanical properties a me ka rigidity ma mua o ka polyethylene, ka luhi luhi a me ke koʻikoʻi māwae, akā, ua nui ka shrinkage, a ua nui ka haʻahaʻa haʻahaʻa brittleness.

Polypropylene
Hoʻohana maʻamau ia i nā mea lapaʻau, nā lako kīhini hale, nā ʻāpana ʻāpana home, nā ʻāpana pale kino kino, nā mea liʻiliʻi a me nā ipu liʻiliʻi.No ka laʻana, kā mākounā puna ʻilianā ʻili iʻahana ʻia me nā mea ʻai meaʻai PP.
3. ʻO ka polyvinyl chloride-maikaʻi loa ke kū'ē kemika a me ka hana insulator uila, nā waiwai mechanical maikaʻi, flammability, akā maikaʻiʻole ka wela, hiki ke hoʻohaʻahaʻa i ka piʻiʻana o ka mahana.
ʻO kāna hoʻohana maʻamau i loko o nā paipu paʻakikī a palupalu, nā papa, nā profiles, nā kiʻiʻoniʻoni, a me nā mea ʻē aʻe, a me nā huahana insulation uea a me ke kaula.
4. Polystyrene-Polystyrene resin mea akaka, loaʻa kekahi ikaika mechanical, maikaʻi uila insulation hana, radiation kū'ē, maikaʻi processability, akā, brittle, pōʻino hopena kū'ē a me ka wela kū'ē.
ʻO kāna hoʻohana maʻamau i loko o nā mea hana ʻike ʻole, nā pūpū mea kani, nā uhi, nā mea e pono ai i kēlā me kēia lā e like me nā ʻōmole, nā lima pulupulu, etc.
5. Acetonitrile-butadiene-styrene copolymer (ABS) -ABS i maikai loa mechanical waiwai o ka toughness, paakiki a paa paa koena pae, uila insulation waiwai, kemika kū'ē, maikai dimensional paʻa, a me ka maikai olinolino ili , Maʻalahi e pena a me ka waihoʻoluʻu, akā,ʻaʻole. pale wela ikaika, pale ʻino ʻino.
ʻO kāna hoʻohana ʻana i nā kaʻa, nā mea uila, nā ʻāpana hana mechanical (e like me nā gears, nā lau, nā lima, nā dashboards), kā mākoupūpū haʻiʻōlelohoʻohana i ka mea ABS.
6. Acrylic resin–Acrylic resin he maikai ka transmittance malamalama, maika'i ke kū'ē i ka wā, maika'i plasticity a me ka dimensional paʻa, akā, haʻahaʻa ili oolea.
ʻO kāna kumu maʻamau i loko o nā mea hana optical, e koi ana i nā ʻāpana ikaika a me nā ʻāpana ikaika (e like me nā gears, blades, lima, dashboards, etc.)
7. ʻO ka Polyamide-Polyamide he mau waiwai mechanical maikaʻi loa, paʻakikī hopena maikaʻi, kūpaʻa maikaʻi i ka lole a me ka lubricity maoli, akā maʻalahi ke komo i ka wai a me ke kūpaʻa maikaʻi ʻole.
ʻO ia a me nā ʻāpana ʻē aʻe i hoʻopaʻa ʻia a koʻikoʻi i nā mīkini, mea kani, nā kaʻa, etc.

Ike 'oe mahope.

 


Ka manawa hoʻouna: Jan-15-2021