PVC film ọkwa
PVC film ọkwa,
PVC maka fim, PVC resin maka ihe nkiri vinyl na-agbanwe agbanwe, PVC resin maka ihe nkiri vinyl siri ike,
A na-akpọ ihe nkiri PVC na-enweghị plasticizer ihe nkiri vinyl siri ike, ebe a na-akpọ PVC plasticized ihe nkiri vinyl na-agbanwe agbanwe.
1. Ihe nkiri Vinyl na-agbanwe agbanwe
Ihe nkiri vinyl na-agbanwe agbanwe nwere ezigbo ihe mgbochi mmanụ na griiz mana ikuku oxygen na-agafe.Ọ nwekwara ezigbo njide, ezigbo idoanya na nkwụsi ike.Ihe ndị a na-eme ka PVC na-agbanwe agbanwe dabara adaba maka nkwakọ nri iji mee ka anụ na ihe ndị ọzọ na-emebi emebi dị ọhụrụ (mgbe FDA kwadoro).Otú ọ dị, PVC plasticized nwere ebe mgbaze dị ala, ọ naghị eguzogide ọgwụ, ma nwee ike nkwụsị dị ala karịa vinyl siri ike.
2. Ihe nkiri Vinyl siri ike
Vinyl siri ike, nke a makwaara dị ka polyvinyl chloride (uPVC), bụ ihe nkiri siri ike ma dị fechaa.Ọ bụ otu n'ime ihe nkiri dị ọnụ ala na-adịgide adịgide ma na-eguzogide ọtụtụ kemịkalụ.Na mkpokọta, enwere ike iji uPVC na okpomọkụ ruru 60°C.Ọ nwere ike tensile dị elu na modulus karịa PVC na-agbanwe agbanwe, mana ọ nwere mmetụta siri ike dị ala, ọ na-enwekwa mgbawa nrụgide dabere na gburugburu ebe obibi.
PVC nwere ọtụtụ njedebe na ihe ndọghachi azụ;plasticizer nwere ike ime ka ọ sie ike na ọnọdụ oyi ma dị nro n'okpuru ọnọdụ ọkụ, nke na-eduga ná mgbanwe nke ihe onwunwe ma nwee ike imebi ike nke akara.PVC na-ewepụtakwa ntakịrị hydrogen chloride n'ikuku ma na-emepụta ihe nkwụnye carbon n'ime ngwa akara mgbe ọ dị ọkụ.N'ihi nke a, a na-achọ ezigbo ventilashion mgbe ị na-ekpuchi mkpuchi PVC shrink.
Ngwa
A na-eji ihe nkiri PVC eme ihe dị ka ihe mkpuchi na-agbatị ma na-agbatị maka ụlọ ọrụ mmepụta ihe na ihe ndị na-azụ ahịa yana dịka ihe mkpuchi pallet, Otú ọ dị, n'ọtụtụ dị ntakịrị karịa ihe nkiri polyolefin.Ojiji ndị ọzọ gụnyere akpa, liners, sleeving karama, nkwado teepu nrapado, akara, akpa ọbara na akpa IV.A na-ekpuchikarị PVDC mgbe a na-achọ ihe mgbochi mmiri emelitere.
PVC kwadoro FDA bụ ezigbo nhọrọ iji kpokọta anụ uhie ọhụrụ n'ihi na ọ bụ nke na-agafe agafe, nke pụtara na ọ bụ ikuku oxygen zuru ezu iji mee ka anụ ahụ dị ọhụrụ na iji nọgide na-acha uhie uhie.Mgbe nghọta dị mkpa, a na-ejikarị PVC eme ihe.
Polyvinyl chloride, nke a na-akpọ PVC, bụ otu n'ime ụdị plastik emepụtara, mmepụta nke ugbu a bụ nke abụọ na polyethylene.A na-eji polyvinyl chloride mee ihe n'ọtụtụ ebe na ụlọ ọrụ, ọrụ ugbo na ndụ kwa ụbọchị.Polyvinyl chloride bụ ngwakọta polymer nke vinyl chloride mebere ya.Ọ bụ thermoplastic.Na-acha ọcha ma ọ bụ na-acha odo odo ntụ ntụ.Ọ na-agbaze na ketones, esters, tetrahydrofurans na chlorinated hydrocarbons.Nguzogide kemịkalụ mara mma.Nkwụsi ike ọkụ na-adịghị mma na nguzogide ọkụ, ihe karịrị 100 ℃ ma ọ bụ ogologo oge ikpughe na ìhè anyanwụ malitere decompose hydrogen chloride, plastic n'ichepụta kwesịrị ịgbakwunye stabilizer.Igwe ọkụ eletrik dị mma, agaghị ere ọkụ.
Ọkwa S-700 na-bụ-eji na-emepụta transperent flakes, na ike-enwe ike-enwe ike ma ọ bụ ọkara siri ike iberi ma ọ bụ mpempe akwụkwọ maka ngwugwu, n'ala ihe, siri ike film maka lining (maka swiiti wrapping akwụkwọ ma ọ bụ sịga mbukota film), wdg Ọ nwere ike. a ga-etinyekwa ya na iberi siri ike ma ọ bụ nke ọkara siri ike, mpempe akwụkwọ, ma ọ bụ mmanya na-adịghị ahụkebe maka ngwugwu.Ma ọ bụ enwere ike ịgbanye ya iji mee nkwonkwo, valvụ, akụkụ eletriki, ngwa ụgbọ ala na arịa.
Nkọwapụta
Ọkwa | PVC S-700 | Okwu | ||
Ihe | Uru nkwa | Usoro ule | ||
Nkezi ogo polymerization | 650-750 | GB/T 5761, Okike A | K uru 58-60 | |
Njupụta pụtara ìhè, g/ml | 0.52-0.62 | Q/SH3055.77-2006, Ihe Odide B | ||
Ọdịnaya na-agbanwe agbanwe (mmiri gụnyere),%, ≤ | 0.30 | Q/SH3055.77-2006, Ihe Odide C | ||
Plasticiser absorption nke 100g resin, g, ≥ | 14 | Q/SH3055.77-2006, Ihe Odide D | ||
VCM fọdụrụnụ, mg/kg ≤ | 5 | GB/T 4615-1987 | ||
Nyocha % | 0.25mm ntupu ≤ | 2.0 | Usoro 1: GB/T 5761, Ihe Odide B Usoro2: Q/SH3055.77-2006, Ihe odide ntụkwasị A | |
0.063mm ntupu ≥ | 95 | |||
Nọmba Azụ, Mba/400cm2, ≤ | 30 | Q/SH3055.77-2006, Ihe Odide E | ||
Ọnụọgụ ụmụ irighiri ihe adịghị ọcha, Mba, ≤ | 20 | GB/T 9348-1988 | ||
Ọcha (160ºC, nkeji iri ka e mesịrị), %, ≥ | 75 | GB/T 15595-95 |