Kedu ka ngwaahịa nkwakọ ngwaahịa na-agbanwe agbanwe dị elu PVDC si emetụta?Akụkụ 2

2. Ngwa kpọmkwem nke PVDC mejupụtara akpụkpọ ahụ na China:
China amalitela ngwa bara uru nke resin PVDC kemgbe mmalite 1980s.Nke mbụ, ọmụmụ sausaji ham webatara ihe nkiri PVDC na China.Mgbe ahụ, ụlọ ọrụ ndị China mebiri mgbochi nke United States na Japan na nkà na ụzụ a ma webata nkà na ụzụ nhazi na akụrụngwa nke ihe nkiri PVDC.Site na mmụba na-aga n'ihu nke akụ na ụba mba China na nkwalite nke ihe onwunwe na ndụ omenala ndị mmadụ, ọkwa nke ọchịchọ maka nkwakọ ngwaahịa na-abawanye.A na-eji nkwakọ ngwaahịa na-arụ ọrụ n'ọtụtụ ebe n'akụkụ niile nke akụ na ụba mba na ebe obibi ndị mmadụ.PVDC bụ onye ndu na imezu yankwakọ ngwaahịa ihe mgbochi dị eluỌdịdị na-eri arụmọrụ na a pụrụ ịdabere na mmiri mmiri, oxygen na ihe mgbochi isi.

Ebe onye ọ bụla nwere ihe ọmụma karịa PVDC casing film, ebe a anyị ga-elekwasị anya na teknuzu ụzọ na Njirimara nke PVDC composite film.Ihe nkiri a na-ejikọta ọnụ na-eme ka adịghị ike nke ihe ọ bụla, na-enye egwuregwu zuru oke maka ịrụ ọrụ ya nke ọma, ma nwee àgwà nke otu ihe na-enweghị.Ụzọ ngwakọta nke PVDC na-emekarị:

mkpuchi, akọrọ, ihe mgbaze-free, na-ekpo ọkụ-agbaze, co-extrusion, wdg Ugbu a, anụ ụlọ mmepụta nke PVDC mejupụtara film tumadi adopts mkpuchi usoro, akọrọ usoro, ihe mgbaze-free na ngalaba-extrusion usoro:

1) Ihe nkiri mkpuchi PVDC
A na-etinye ihe mkpuchi latex PVDC n'elu ala nke mkpụrụ (OPP, PA, PE, PET, wdg) iji mepụta ihe nkiri mejupụtara iji meziwanye ọrụ mgbochi gas nke mkpụrụ.Njirimara arụmọrụ:
Ihe mgbochi dị mma;The ọkpụrụkpụ nke PVDC oyi akwa bụ n'ozuzu 2 ~ 3um, na ala na-eri;Enweghị ike iguzogide nri okpomọkụ dị elu.

2) PVDC laminated mejupụtara akpụkpọ ahụ
Ihe mejupụtara ya bụ ọtụtụ ihe nkiri otu oyi akwa, a na-ejikọta oyi akwa ọ bụla na nrapado.Enwere ike ikewa ya na:
Akọrọ (ihe mgbaze) lamination na ihe mgbaze na-enweghị ihe mgbaze.

Njirimara arụmọrụ:
A. Ya naihe mgbochi dị elu na nhazi mgbanwe, ọ nwere ike na- compounded na BOPA, CPP, CPE, BOPP, BOPET, PVC na ndị ọzọ na fim (atụ, BOPP, PET, PA nwere ike ji mee ihe dị ka outermost obibi oyi akwa, PE, CPP na ndị ọzọ dị mma thermal akara mmetụta nwere ike iji mee ihe. dị ka thermal sealing oyi akwa, PA nwere ike iji mma nkwụsị nkwụsịtụ dị ka oyi akwa nkwụsị, na PVDC nwere ike iji dị ka ihe mgbochi mgbochi iji gbochie oxygen na mmiri).

B. Ezigbo okpomọkụ na-eguzogide.Enwere ike ime ya ka ọ bụrụ ihe nkiri ihe mejupụtara ihe mejupụtara ya na obere okpomọkụ na-eguzogide ọgwụ - 20 ℃ ~ 121 ℃;
Ezigbo ihe eji arụ ọrụ na ikpo ọkụ ọkụ, nke dabara maka igwe nkwakọ ngwaahịa dị iche iche, mbipụta agba, nke a na-ejedebe site na otu ihe nkiri, ka ọ dị ugbu a, ọkpụrụkpụ nke oyi akwa ọ bụla enweghị ike ịdị oke mkpa na ọnụ ọgụgụ nke ihe mejupụtara ya ekwesịghị ịbụ ọtụtụ (n'ozuzu ọ bụghị karịa). karịa 5 layers).

3) Ihe nkiri ihe mejupụtara PVDC multilayer jikọtara ọnụ
A na-ebupụ plastik dị iche iche site n'ọtụtụ extruders n'otu oge site na isi anwụ iji mepụta ihe nkiri nwere nhazi nhazi, ntinye ntinye doro anya, njide siri ike na ọkpụrụkpụ interlayer na-agbanwe agbanwe.Dị ka ụzọ dị iche iche akpụ si dị, enwere ike kewaa ya n'ime ihe nkiri na-ekpo ọkụ na-ekpo ọkụ na ihe nkiri nkedo.A na-ejikarị ihe PVDC eme ihe dị ka oyi akwa mgbochi nke ihe nkiri mejupụtara.Njirimara arụmọrụ: ihe mgbochi dị elu, ịdị ọcha dị mma, a na-eji resin nrapado mee ihe maka njikọta, na-ezere nsogbu nke ihe mgbaze na-eme ka ọ bụrụ ihe na-eme ka ihe na-eme ihe na-ekpo ọkụ na-eme ka ọ bụrụ ihe na-edozi ahụ (ihe mgbaze), na enwere ike sie ya na ihe na-erughị 100 degrees;Enwere ike ịhazi ihe nkiri ahụ site na nhazi ọkwa nke abụọ site na iji mmepụta alaka nke eruba;Enwere ọtụtụ ọkwa nke enwere ike ịme, ma ugbu a ọ ruru ọkwa iri na atọ.Enwere ike ime ka ọkpụrụkpụ interlayer dị ezigbo mkpa, nke nwere ike ịchekwa ego nke resin na ọnụ ahịa dị elu ma nweta ụgwọ ọrụ dị oke ọnụ ahịa.