Film Technology: ụdị, e ji mara, ngwa ebe

The akụkọ ihe mere eme nke ihe a malitere ná mba ọzọ ọbụna n'etiti narị afọ gara aga,. Ọ na-eji eme mbukota nke ibu nri ụlọ ọrụ. The film bụ n'ihi nke multiple oru mgbanwe nke chemical mejupụtara na mmepụta nke nkà na ụzụ nyere ya na a dịgasị iche iche nke ngwaahịa na a elu larịị nke iji.

Ọdịdị

Properties ẹkenịmde teknuzu plastic film, na nzube ya-adabere na mejupụtara:

• Elu nsogbu polyethylene enwe a ala njupụta (LDPE).
• Low-mgbali polyethylene enwe ok Ọdịdị (HDPE).
• Linear LDPE na a gbanwetụrụ mejupụtara.
• Ọdịiche nke compound: n'ihi na ihe atụ, LDPE na HDPE, polypropylene.

technical chọrọ

The polyethylene bụghị nsí, bụ ndị na-abụghị na-egbu egbu otu flammable ihe onwunwe na a flash ebe nke 300 ° C, na ndị ọzọ e ji mara-adabere na mejupụtara:

Polyethylene film nke ala nsogbu:

• Ịkpata inogide ihe onwunwe (0,94 ÷ 0,96 g / cm ^2).
• Anụ na okpomọkụ (eruba mode na 112 C Celsius).
• Persistent Ọdịdị na oriri abụba na mmanụ. Na-anọpụ iche na acidic na alkaline bekee.
• Enweghị - elu permeability larịị, ihe fọrọ nke nta 6 ugboro elu karịa HP film. Ghara ịdị irè na kọntaktị na hydrocarbons na ekwesighi - na mfe oxidizable bekee.
• Film Technology dabeere HDPE dị oké mkpa maka nkwakọ ngwaahịa n'ịnwụ nwoke ịga ụlọ ọgwụ, na akpan akpan dịgasị iche iche nke nri na ngwaahịa.

The polyethylene film nke elu nsogbu:

• Ọ nwere a njupụta nke 0,91 ÷ 093 g / cm ^2.
• Ezi Uche ike ọdụdọ.
• A ala eruba ọnụego na-enye ohere ka Weld ihe iberibe.
• Frost eguzogide: ruo - 60C Celsius.
• On n'elu agba bụ mfe ime.

Linear LDPE: a kpuchie n'ihi na e kere eke nke gbatia multilayer fim.

Onye ọ bụla ụdị ihe na-emepụta ga-izute chọrọ nke ala usoro iwu akwụkwọ:

• Plastic film technical - GOST 10354 - 82.
• Polyethylene Ada Ada - GOST 25951 - 83.
• HDPE GOST 16338 - 85.
• LDPE GOST 16337 - 77.

mmepụta

Nka na ụzụ film na-emepụta site extrusion usoro na ọtụtụ nkebi:

• -Agbaze ma na-afụ nke ọkara mmiri mmiri mejupụtara, na-ebute site ná mmepụta site dị iche iche nke ụrà:

1. Ring, inye ụdị akpa nkwakọ. Mgbe tinyekwa nke nozulu ihe tọrọ elu na na-mịrị amị n'elu dum n'ogologo, na ụdi tightening nke rụọ na zuru-ọnya coils. Oge na-ewe usoro, nke na-enye ohere na-kwaaji ruo 2400 mm n'ogologo.
2. Ewepụghị, na-enye ohere kpọmkwem film mpempe akwụkwọ. Mgbe extrusion, ihe na-mịrị amị, agbatị na bee. Nke a ngwa ngwa technology, ma polyethylene Ibé akwụkwọ adịghị gafere 1.5 m.

• Polyethylene gbatịrị mgbanwe na-emepụta a ihe onwunwe na chọrọ Njirimara:

1. Chemical, na mgbakwunye na nke kpọmkwem ọcha.
2. Mechanical site ndinyanade mbịne.
3. "Crosslinking" by ion radieshon
4. Kwes stabilization. Mgbe okpomọkụ omume, na ákwà Ọdịdị-aghọ ndị ọzọ na-eguzogide ọgwụ na n'ibu mebiri.

Nka na ụzụ film: e ji mara na ụdị nke okokụre ngwaahịa

Dabere na feedstock commercially mgbanwe pụrụ ịhụ ndị na-esonụ technical polyethylene:

• Svetostabilizirovany: nwere nnukwu iguzogide anyanwụ radieshon, ndụ na-adabere na ịta nke stabilizers. Ọ nwere na-egbuke egbuke na agba: odo, green na na.
• Ada Ada: mgbe kpụ ọkụ n'ọnụ na-agbanwe ya size, obtyagivaya ihe dị n'ime. web obosara nke 150 mm na 2500 mm aka uwe.

shrinkage:

1. Longitudinal: 40 ka 80%.
2. Transverse: 10 ÷ 50%.

• The mejupụtara Ada Ada: dị iche iche ụdị mkpuchi na mgbakwunye na nke reagents na gbanwee ihe Njirimara n'okpuru chọrọ mara.
• Mesikwuru: Film Technology na ntupu nke polypropylene ma ọ bụ polyethylene.
• Uzo: isi iyi ihe onwunwe - HDPE. Hydrophilic ethylene copolymer film mma nghọta.
• Agba: ihe - HDPE, colorants, stabilizers.

Polyethylene film ụzụ: Ngwa

The iche iche nke umu enye ohere iji ihe polyethylene fọrọ nke nta niile na ngalaba nke mmadụ ọrụ:

• Construction: na ụdị a aka uwe ma ọ bụ webs, ọkpụrụkpụ 60 ÷ 200 microns. Eji maka nkwakọ pallets na cover ihe ma na-echebe na-ebupụta si ofufe.

• Agriculture:

1. Film Technology nwa ink: iche iche iche iche nke akwụkwọ, tinyere mgbokwasị "n'okpuru uzuoku" Ome (ọkpụrụkpụ 60 microns), mulching, njupụta 10 ÷ 60 microns.
2. Hydrophilic na enwekwukwa nghọta: n'ihi na greenhouses.

• mbukota:

1. Ada Ada film (aka uwe kwaaji) nke bụ isi na sekọndrị, dị ọnụ ala karịa ngwaọrụ.
2. Na ụdị nke na-akpa: maka nkwakọ n'efu na n'efu.

Polyethylene film nwere a nnukwu iche iche nke oru, nwere ike igbo ọ bụla ọchịchọ nke asịwo. Isi drawback - ọ bụ a elu oge nke decomposition nke ihe onwunwe na ala ozo nke nhazi.