Taa, m ga-enye gị obere nkọwa gbasara akụkọ ihe mere eme nke plastik.

Plastik mbụ e ji aka mee nke e ji mee ihe n'akụkọ ihe mere eme mmadụ bụ resin phenolic nke American Baekeland ji phenol na formaldehyde mee na 1909, nke a makwaara dị ka plastik Baekeland. A na-eme resin phenolic site na mmeghachi omume condensation nke phenols na aldehydes, ha sokwa na plastik thermosetting. Usoro nkwadebe a kewara n'ime usoro abụọ: nzọụkwụ mbụ: buru ụzọ mee ka ọ bụrụ ngwakọta nwere obere ogo polymerization dị larịị; nzọụkwụ nke abụọ: jiri ọgwụgwọ okpomọkụ dị elu gbanwee ya ka ọ bụrụ ngwakọta polymer nwere nnukwu ogo polymerization.
Mgbe ihe karịrị otu narị afọ nke mmepụta plastik gasịrị, ngwaahịa plastik dị ebe niile ugbu a ma na-eto n'ọ̀tụ̀tụ̀ dị egwu. Resin dị ọcha nwere ike ọ gaghị enwe agba ma doo anya ma ọ bụ ọcha n'ọdịdị, nke mere na ngwaahịa ahụ enweghị ihe doro anya na nke na-adọrọ adọrọ. Ya mere, inye ngwaahịa plastik agba na-egbuke egbuke aghọwo ọrụ a na-apụghị izere ezere nke ụlọ ọrụ nhazi plastik. Gịnị mere plastik ji too ngwa ngwa n'ime naanị afọ 100? Isi ihe kpatara ya bụ na o nwere uru ndị a:

1. Enwere ike imepụta plastik n'ọtụtụ buru ibu.ebu plastik)

2. Njupụta plastik ahụ dị mfe ma ike ya dị elu.

3. Plastik nwere ike iguzogide nchara.

4. Plastik nwere ezigbo ihe mkpuchi na ihe mkpuchi okpomọkụ.

E nwere ọtụtụ ụdị plastik dị iche iche. Kedu ụdị thermoplastics bụ isi?

1. Polyvinyl chloride (PVC) bụ otu n'ime plastik ndị a na-ejikarị eme ihe n'ozuzu. N'ime plastik ise kachasị elu n'ụwa, ikike mmepụta ya bụ nke abụọ karịa polyethylene. PVC nwere ezigbo ike na iguzogide nchara, mana enweghị ike ịgbanwe agbanwe, monomer ya dịkwa nsi.

2. Polyolefin (PO), nke a na-ahụkarị bụ polyethylene (PE) na polypropylene (PP). N'ime ha, PE bụ otu n'ime ngwaahịa plastik kachasị ukwuu maka ebumnuche izugbe. PP nwere obere njupụta, ọ naghị egbu egbu, ọ naghị esi isi ma nwee ezigbo iguzogide okpomọkụ. Enwere ike iji ya ruo ogologo oge na okpomọkụ nke ihe dị ka ogo 110 Celsius.ngaji plastike ji nri PP mee ya.

3. Resin Styrene, gụnyere polystyrene (PS), acrylonitrile-butadiene-styrene copolymer (ABS) na polymethyl methacrylate (PMMA).

4. Polyamide, polycarbonate, polyethylene terephthalate, polyoxymethylene (POM). A pụrụ iji ụdị plastik a mee ihe dị ka ihe owuwu, nke a makwaara dị ka ihe injinia.

A dekọrọ nchọpụta na ojiji nke plastik n'akwụkwọ akụkọ ihe mere eme, ọ bụkwa ihe nke abụọ dị mkpa mepụtara nke metụtara ụmụ mmadụ na narị afọ nke 20. Plastik bụ ọrụ ebube n'ụwa n'ezie! Taa, anyị nwere ike ikwu n'enweghị ikwubiga okwu ókè: "A pụghị ikewapụ ndụ anyị na plastik"!