Ihe mgbochi Ethylene Glycol

Ethylene Glycol Antimony / Antimony Triglycolate – Njirimara Physicochemical

Nkọwapụta Ụlọ Ọrụ maka Ethylene Glycol Antimony

Ngwugwu: Akpa ndị mejupụtara plastik nke aluminom na-ejupụta na ihe mkpofu. Akpa ọ bụla dị kilogram 15 ma ọ bụ 25 ma a na-etinye ya n'otu pallet kwa tọn.

Kedu ebe a na-eji antimony glycol eme ihe na ojiji a kapịrị ọnụ?

I. Ebe Ndị Isi E Ji Eme Ihe

Antimony glycolate bụ ihe na-eme ka polycondensation nke organometallic dị irè nke ukwuu, dị ọcha nke ukwuu, nke a na-ejikarị eme ihe n'ụlọ ọrụ polyester, ọkachasị n'ime usoro polycondensation nke na-agbaze site na iji terephthalic acid (PTA) na ethylene glycol (EG) dị ka ihe eji arụ ọrụ. N'ụzọ pụrụ iche, ọ na-ekpuchi obere ngalaba ndị a:

1. Mmepụta resin polyester (PET)
- Iberibe polyester nke e ji eriri mee (maka eriri polyester na eriri)
- Mpekere polyester nke e ji karama mee (maka mmiri ọṅụṅụ, ihe ọṅụṅụ carbonated, karama ndị e ji ọkụ jupụta, wdg)
- Ibe polyester nke a na-etinye n'ime ihe nkiri (maka ihe nkiri anya, ihe nkiri mkpuchi eletriki, na ihe nkiri nkwakọ ngwaahịa)

2. Polyester na copolyesters emezigharịrị
- Polyester dị obere nke diethylene glycol (DEG)
- Polyester agba agba nke Cationic (CDP)
- Sistemụ katalytic nke polybutylene terephthalate (PBT) nke nwere akụkụ ụfọdụ (chọrọ nhazi)

3. Usoro Imegharị Ihe na Mmezi Ihe Polyester
- Ịgbaze na ime ka ihe mkpofu PET sie ike (oge ọgwụgwọ tupu SSP)
- Polycondensation catalysis nke polyester emegharịgharịrị (r-PET) dị irè nke ukwuu

II. Ngwa na Uru Teknụzụ Ndị A Kpọrọ Iche

Antimony glycolate na-anọchi ihe ndị na-akpali akpali ọdịnala (dịka antimony trioxide na antimony acetate) na mmeghachi omume polyester polycondensation, ngwa ya na mmezi arụmọrụ ya kpọmkwem bụ ndị a:

1. Mmeghachi omume nke polycondensation catalytic dị irè nke ukwuu, na-eme ka ikike mmepụta dịkwuo elu.
- Ngwa: Dịka isi ihe na-akpali akpali, ọ na-eme ka usoro polycondensation dị ngwa ngwa mgbe transesterification ma ọ bụ esterification kpọmkwem gasịrị, na-eme ka ọnụego polymerization dịkwuo elu nke ukwuu.
- Mmetụta: Site na otu oke antimony ahụ, oge mmeghachi omume na-ebelata site na 10%–15%; ma ọ bụ n'otu oge ahụ, ogo nke polymerization (DP) na intrinsic viscosity (IV) dị elu, a na-emekwa ka mmepụta oghere nke unit ahụ ka mma.

2. Belata ihe fọdụrụ n'ime ngwaahịa emechara iji mezuo ihe achọrọ maka nchekwa akwụkwọ ndụ akwụkwọ ndụ na gburugburu ebe obibi.
- Ngwa: N'ihi oke arụmọrụ ya dị elu nke catalytic, ego achọrọ ka etinyere bụ naanị 60%–70% nke ihe ndị na-akpali akpali ọdịnala (dabere na ihe antimony).
- Nsonaazụ: Enwere ike ijikwa ọdịnaya Sb fọdụrụ na ibe PET na ≤150 ppm, ụfọdụ ibe karama dị elu nwere ike ịdị ala dịka ≤100 ppm, nke dị ala karịa 200-250 ppm nke sistemụ antimony acetate, na-emezu ihe mgbochi na mbugharị nke ihe kọntaktị nri nke EU, US FDA na ndị ọchịchị ndị ọzọ tinyere.

3. Meziwanye agba na njirimara anya nke ngwaahịa polyester
- Ngwa: A na-agbaze Antimony glycol kpamkpam ma gbasaa ya n'otu aka ahụ na sistemụ mmeghachi omume, na-ezere oke catalysis mpaghara ma ọ bụ nchịkọta ígwè.
- Nsonaazụ: A na-ebelata uru b (ndepụta odo) nke ibe PET emepụtara site na nkeji 1-2 ma e jiri ya tụnyere sistemụ antimony trioxide, ebe a na-eme ka uru L (ìhè) ka mma, na-eme ka ha dịkwuo mma maka mmepụta nke ihe nkiri anya na eriri na-egbuke egbuke nke ukwuu.

4. Belata mmeghachi omume ndị na-adịghị mma ma melite ihe ngosi mma ngwaahịa.
- Ngwa: Belata mmeghachi omume ndị dị ka ethylene glycol etherification ma gbochie mmepụta nke diethylene glycol (DEG).
- Mmetụta: Enwere ike ijikwa ọdịnaya DEG na PET na ≤0.8% (ma e jiri ya tụnyere ihe dị ka 1.0%–1.2% na sistemụ nkịtị), ime ka ebe agbaze na nkwụsi ike okpomọkụ ka mma, ma melite arụmọrụ ntụgharị na ịkpụzi ihe n'okpuru ala.

5. Mee ka ike ntụgharị dịkwuo mma mgbe emechara nhazi iji belata ọsọ mgbawa.
- Ngwa: Ihe fọdụrụ nke catalytic ahụ dị otu ma dịkwa mma nke ukwuu n'ogo irighiri ihe (ọ dịghị ihe a kwụgidere mgbe agbazechara), ọ naghịkwa emechi ihuenyo nzacha nke mgbakọ na-agbagharị.
- Mmetụta: A na-ebelata ọsọ mgbawa nke eriri polyester filament site na ihe karịrị 30%, ike eriri na ịdị n'otu ogologo na-akawanye mma, ọnụego nke ngwaahịa dị elu nwekwara ike iru 100%.

6. Mfe ojiji na mgbanwe ngwaọrụ
- Ngwa: Enwere ike ịgbaze ya ozugbo na ethylene glycol iji kwadebe ihe ngwọta ihe na-akpali akpali yiri nke ahụ (ntinye 2%–5%), na-eme ka nhazi na nri na-aga n'ihu ma doo anya.
- Mmetụta: Na-ezere ihe egwu nke mmiri ozuzo nke antimony acetate hydrolysis kpatara, ma na-ewepụkwa mkpa ọ dị maka igwe egweri na usoro mgbasa nke antimony trioxide, na-eme ka ọ dabara adaba maka nnukwu osisi polyester na-aga n'ihu (mpụta otu ahịrị kwa ụbọchị nke narị tọn ma ọ bụ karịa).

III. Ihe Ndị E Dere n'Akụkọ Mgbakwunye (Ndụmọdụ Nhọrọ)

Ma e jiri ya tụnyere antimony acetate, antimony glycol nwere ike iguzogide okpomọkụ dị elu ma ọ naghị adị mfe iwepụ ma ọ bụ ire ere na okpomọkụ polycondensation karịa 300°C, si otú a na-ebelata ntinye antimony na paịpụ vacuum.
- Ma e jiri ya tụnyere antimony trioxide: Antimony glycol nwere ike ịgbaze nke >10% (oke nkezi, 80℃) na ethylene glycol, ebe antimony trioxide nwere ike ịgbaze nke ihe na-erughị 0.1%, yabụ ịgbaze ya na ọrụ mbụ ya ka mma nke ukwuu karịa nke ikpeazụ.
- Mmachi ngwa: Adịghị mma maka sistemụ na-enweghị antimony (dịka ụfọdụ karama ndị na-ejupụta ọkụ na nkwakọ ngwaahịa ahụike), mana enwere ike iji ya dị ka ihe ngwọta mgbanwe na mgbanwe antimony-mbelata.