Okwu Mmalite akpa akpa nri

Ọtụtụ ndị amaghị ihe ihe onwunweakpa akpa nrina-emekarị mere nke.Na-eme ihe n'eziokwu ga-nkenke kọwaa ihe nkeakpa nkwakọ nris.

Ngwunye ihe oriri: PVDC (polyvinylidene chloride), PE (polyethylene), PP (polypropylene), PA (nylon), EVOH (ethylene / vinyl alcohol copolymer), ihe nkiri alumini (aluminom + PE), wdg, ọtụtụ akpụkpọ anụ.
Enwere ike kewaa mmepụta ihe nkiri: ihe nkiri gbatịa, ihe nkiri afụ.
Ka ọ dị ugbu a, ihe ndị bụ isi a na-eji maka nkwakọ nri bụ PP na PE, ya bụ, polypropylene na polyethylene plastics.Maka ihe abụọ a, enwere ike imeju nkwakọ ngwaahịa nri.
E jiri ya tụnyere nkwakọ ngwaahịa na-abụghị nri, PP na PE enweghị ihe mgbakwunye rọba.Anyị niile maara na ihe mgbakwunye rọba nwere mmetụta dị ukwuu na ahụ mmadụ, ọkachasị ahụike ụmụaka.PP na PE agaghị ahapụ ihe ndị na-egbu egbu n'oge eji.Ụfọdụ ihe ndị ọzọ nwere ike ibute ọrịa kansa, mana PP na PE adịghị.A na-eji nkwakọ ngwaahịa PVC eme ihe maka ihe nkiri nri, mana n'ihi enweghị nchebe ya, ejiri ihe nkiri PE jiri nwayọ dochie ya.
Ihe e ji mara PE bụ: nro, ihe ndị na-arụ ọrụ na-adịghị mma karịa PP, ngwaahịa ndị nnọchiteanya na-agụnye akpa ịzụ ahịa ụlọ ahịa, ihe mkpuchi plastik, akpa mkpofu, wdg. PP siri ike, anisotropic (ọ dị mfe ịdọka ma ọ bụrụ na enwere oghere), ezigbo ígwè ọrụ. Njirimara, na arụmọrụ okpomọkụ dị elu dị mma karịa PE, nke pụtara na ngwaahịa ahụ nwere akpa achịcha.
N'ozuzu dị ka usoro ihe onwunwe si dị, oyi akwa dị n'ime bụ PE ma ọ bụ CPP, oyi akwa bụ PA, PET, n'etiti nwere ike ịbụ EVOH ma ọ bụ PVDC, wdg, na ụfọdụ bụ ihe nkiri alumini ma ọ bụ aluminom foil.

PE na CPP nwere ezigbo ihe mkpuchi okpomọkụ, ya bụ, ha dị mfe iji mechie.
PA na PET nwere ezigbo mbipụta ma enwere ike iji ya na oyi akwa dị n'elu bipụta foto mara mma.
PVDC na EVOH nwere ezigbo ihe mgbochi ma gbochie oxidation.
Ihe nkiri alumini na ihe mkpuchi aluminom nwere ezigbo ihe mkpuchi ọkụ ma dabara maka ngwaahịa ndị na-adabaghị maka ọkụ.

Ihe dị iche iche nwere ihe dị iche iche na ojiji dị iche iche.Ngwunye ihe oriri n'ozuzu abụghị otu ihe, kama ọ bụ multi-layer composites, nke nwere ike iji okpukpu abụọ, okpukpu atọ, okpukpu anọ, wdg.
Nri akọrọnanri oyi kpọnwụrụA na-ejikarị PET/PE eme ya.
Ọmụmaatụ,elu-okpomọkụ isi nribụ nke a na-ejikarị naịlọn mejupụtara CPP, ma ọ bụ ihe ndị ọzọ mejupụtara.
Ihe mkpuchi uhie nke ham bụ otu ihe PVDC.
Swiiti na chocolaten'ozuzu na-eji transperent akwụkwọ / PP, kraft akwụkwọ / PE / AL / PE, AL / PE, wdg.