Ihe nkwakọ ngwaahịa na ihe mkpuchi ikpo ọkụ bụ ndị a;

1. sezọ nkwakọ ngwaahịa nkwakọ ngwaahịa

Usoro nke ngwugwu ihe ngwugwu gunyere nkpuchi oku, nkpuchi oyi, nrapado akara, wdg. Okpomoku oku na-ezo aka n'iji ihe omimi nke ihe di n'ime ime ihe omimi nke mejuputara otutu ihe, nke na eme ka akara aka di ike mgbe ikpo oku, ma mee ka o sie ike mgbe isi iyi oku di. wepụrụ A na-ejikarị ihe mkpuchi plastik na-ekpo ọkụ, ihe mkpuchi na ihe na-ekpo ọkụ na-ekpo ọkụ. Ochie oyi na-ezo aka na enwere ike imechi ya site na ịpị na-enweghị kpo oku. Ihe mkpuchi mkpuchi kachasị oyi bụ mkpuchi mkpuchi etinyere na nsọtụ akpa. A naghị eji ihe nkedo nrapado eme ihe na ngwugwu ihe eji eme otutu, jiri ya maka ihe nkwakọ ngwaahịa nwere akwukwo.

2. Ihe mkpuchi ihe na-ekpo ọkụ

(1)Polyethylene (PE) bụ ụdị milky na-acha ọcha, translucent na opaque waxy siri ike. Ọ fọrọ nke nta ka ọ bụrụ nke na-atọ ụtọ, na-adịghị egbu egbu ma dị ọkụ karịa mmiri. Pee macromolecular yinye nwere ezi mgbanwe na dị mfe crystallize. Ọ bụ ihe siri ike na ụlọ okpomọkụ. Dị ka ihe ngwugwu, isi ihe na-adịghị mma nke Pee bụ njigide ikuku na-adịghị mma, ikike dị ukwuu nke gas na ikuku vapo, ike dị ala na nguzogide okpomọkụ; ọ dị mfe iweda ya site na ọkụ, ọkụ na poolu, ya mere a na-agbakwunye antioxidant na ọkụ na nkwụsi ike na ngwaahịa PE iji gbochie ịka nká; PE enweghi nsogbu nke gburugburu ebe obibi, ma adighi eguzogide nsogbu nke h2s04, HNO3 na oxidant ya, ma gha eme ya site na aliphatic hydrocarbons ma obu chlorine hydrocarbons mgbe ekpo oku; arụmọrụ ebi akwụkwọ nke Pee bụ ogbenye, na elu bụ ndị na-abụghị polar, ya mere corona ọgwụgwọ a ga-rụrụ tupu ebi akwụkwọ na akọrọ bonding iji melite mmekọrita na njikọ akọrọ nke ink akwụkwọ.

Pee eji maka ikpo ihe na-ekpochi ikpo kpo oku gunyere:
Ye polyethylene nke obere (LDPE), nke a makwaara dị ka polyethylene dị elu;
Ye polyethylene dị elu (HI) PE, a makwaara dị ka polyethylene dị ala;
Ye ọkara njupụta polyethylene (nu) PE :); linear low density polyethylene (LLDPE);
④ metallocene catalyzed polyethylene.

(2)Njirimara nke ihe nkiri polypropylene nkedo (CPP) ejiri mee ihe maka ikpo ọkụ dị iche na nke polypropylene nke biaxially n'ihi usoro mmepụta ya dị iche. E gosipụtara uru na ọghọm nke CPP na ọdịnaya dị mkpa nke "polypropylene".

(3) PVC (abbreviated dị ka PVC) bụ ihe na-enweghị ntụpọ, transperent na siri ike resin na ike molekụla polarity na ike intermolecular ike, n'ihi ya, ọ nwere ezi ekweghị ekwe na isiike plastic kalama.

PVC dị ọnụ ala karịa ọtụtụ. Enwere ike ime ya n'ime ihe nkwakọ ngwaahịa siri ike, egosipụta egosipụta na ihe nkiri nkwakọ ngwaahịa na ihe ịfụfụ rọba. N'ihi nsị na nsị na-emebi emebi, oriri ya na-ebelata ma jiri nwayọọ nwayọọ dochie ihe ndị ọzọ.

(4) EVA (ethylene vinyl acetate copolymer) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (EVA) Eva poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (eva-eva) poly (ethylene vinyl acetate) (EVA) poly (ethylene vinyl acetate) (Eva. site na copolymerization nke ethylene na vinylacetic acid mmanya. Njirimara ya na-agbanwe site na ọdịnaya nke monomers abụọ ahụ. Ya mere, mgbe ị na-ahọrọ ihe nlereanya nke EVA, a ga-ekpebisi ike dịka o si eji ya, enwere ike iji ya dịka plastik, nrapado agbaze ọkụ na mkpuchi .
A na-eji EVA eme ihe dị ka ihe dị n'ime ihe nkiri mejupụtara n'ihi na ọ dị mma na-agbanwe agbanwe na ike ikpuchi ọkụ. A na-eji ya na nrapado, ihe mkpuchi, ihe mkpuchi, mkpuchi mkpuchi USB na onye na-agba agba ya na ezigbo adhesion ya (mma ma ọ bụ ụfọdụ ịba n'iji ya na ọtụtụ polar na ihe ndị na-abụghị nke polar).

(5)PVDC (polyvinylidene chloride) PVDC n'ozuzu na-ezo aka na copolymer nke vinylidene chloride. Polymer nke polymerization nwetara site na polymerization nwere nnukwu crystallinity, ebe dị nro dị elu (185-200′c) na nso ọnọdụ okpomọkụ decomposition (210-2250). Ọ nwere adịghị mma ndakọrịta na izugbe tackifier, n'ihi ya, ọ na-esiri ike ịkpụzi.
PVDC bụ ihe siri ike na nghọta na akwa crystallinity na-acha akwụkwọ ndụ akwụkwọ ndụ. Ọ nwere oke nnyefe mmiri na mmiri mmiri gas, gas na isi, ma nwee nguzo mmiri dị mma, njigide ikuku na isi na-esi isi. Ọ bụ ihe magburu onwe ya elu ịgba mgbochi ihe onwunwe. Ọ na-eguzogide ọgwụ acid, alkali na ihe mgbaze dị iche iche, na-eguzogide mmanụ, na-egbochi ma na-emenyụ onwe ya.