Ethylene Glycol Antimony

Ethylene Glycol Antimony / Antimony Triglycolate – Ngā Āhuatanga Ā-tinana me te Matū

Whakatakotoranga Hinonga mō te Antimony Ethylene Glycol

Mōkihi: Ka tākaihia ngā putea konumohe-kirihou ki te korehau. E 15, e 25 rānei te taumaha o ia putea, ā, ka tākaihia ki roto i te kotahi papa mō ia tana.

He aha ngā wāhi tono me ngā whakamahinga motuhake o te antimony glycol?

I. Ngā Wāhi Whakamahinga Matua

He tino whai hua te antimony glycolate, he tino parakore, he whakakorikori polycondensation organometallic, e whakamahia ana i roto i te umanga polyester, inā koa i roto i ngā tukanga polycondensation rewa mā te whakamahi i te waikawa terephthalic (PTA) me te ethylene glycol (EG) hei rauemi mata. Ina koa, e kapi ana i ngā wāhanga iti e whai ake nei:

1. Te hanga kapia polyester (PET)
- Ngā maramara polyester muka-whakairo (mō te muka me te miro polyester)
- Ngā maramara polyester kounga-pouaka (mō te wai inu, ngā inu warowaihā, ngā pounamu whakakī wera, me ētahi atu)
- Ngā maramara polyester kounga-kiriata (mō ngā kiriata whatu, ngā kiriata whakamahana hiko, me ngā kiriata takai)

2. Ngā polyesters me ngā copolyesters kua whakarerekētia
- He iti te ihirangi o te polyester i roto i te diethylene glycol (DEG)
- Polyester tae-kationika (CDP)
- Pūnaha whakakorikori wāhanga o te polybutylene terephthalate (PBT) (me hanga)

3. Te Hangarua Polyester me te Tukanga Whakapaipai i te Matotoru
- Te whakarewa me te whakamātotoru i ngā para PET (wāhanga maimoatanga SSP)
- Te whakaterenga polycondensation tino whai hua o te polyester hangarua (r-PET)

II. Ngā Whakamahinga Motuhake me ngā Painga Hangarau

Ka whakakapia ngā whakakorikori tuku iho (pērā i te antimony trioxide me te antimony acetate) e te antimony glycolate i roto i ngā tauhohenga polycondensation polyester, ā, ko ōna whakamahinga motuhake me ngā whakapainga mahi koia ēnei:

1. He tino whai hua te tauhohenga polycondensation catalytic, e whakanui ana i te kaha whakaputa.
- Ngā Whakamahinga: Hei whakakorikori matua, ka whakateretere i te wāhanga polycondensation i muri i te transesterification, i te esterification tika rānei, ka tino whakanui ake i te tere polymerization.
- Ngā Pānga: Ki te rite te nui o te antimony, ka poto ake te wā tauhohenga mā te 10%–15%; i roto rānei i taua wā anō, ka teitei ake te taumata o te polymerization (DP) me te oro ā-roto (IV), ā, ka pai ake te hua ā-wāhi o te waeine.

2. Whakaitihia te toenga o te antimony i roto i te hua kua oti kia tutuki ai ngā whakaritenga tiaki taiao me te taiao.
- Ngā Whakamahinga: Nā te nui o te whai huatanga o te whakakorikori, ko te nui e hiahiatia ana kia tāpirihia he 60%–70% noa iho o te nui o ngā whakakorikori tuku iho (i runga i te huānga antimony).
- Ngā Hua: Ka taea te whakahaere pūmau i te ihirangi Sb toenga i roto i ngā maramara PET i te ≤150 ppm, ā, ko ētahi maramara pounamu papai ka taea te iti iho i te ≤100 ppm, he iti rawa atu i te 200–250 ppm o te pūnaha antimony acetate, e tutuki ai ngā here mō te hekenga o ngā rauemi e pā ana ki te kai i whakatakotoria e te EU, US FDA me ētahi atu mana whakahaere.

3. Whakapai ake i te tae me ngā āhuatanga whatu o ngā hua polyester
- Ngā Whakamahinga: Ka rewa katoa te antimony glycol, ā, ka marara ōrite ki roto i te pūnaha tauhohenga, ka karo i te nui rawa o te whakaterenga ā-rohe, i te whakakotahitanga rānei o te konganuku.
- Ngā Hua: Kua whakaitihia te uara-b (taupū kōwhai) o ngā maramara PET kua hangaia mā te 1–2 waeine ki te whakataurite ki te pūnaha antimony trioxide, ā, kua pai ake te uara-L (kanapa), kia pai ake ai mō te hanga kiriata whatu me ngā muka kanapa rawa.

4. Whakaitihia ngā tauhohenga taha, me te whakapai ake i ngā tohu kounga hua.
- Ngā Whakamahinga: Whakaitihia ngā tauhohenga taha pēnei i te whakapūtanga o te ethylene glycol me te aukati i te hanganga o te diethylene glycol (DEG).
- Ngā Pānga: Ka taea te whakahaere i te ihirangi DEG i roto i te PET i te ≤0.8% (ki te whakarite ki te 1.0%–1.2% i roto i ngā pūnaha tikanga), ka whakapai ake i te ira rewa me te pumau o te wera, me te whakarei ake i te mahi hurihuri me te pupuhi whakarewa i raro iho.

5. Whakapai ake i te āheinga hurihuri i muri i te tukatuka hei whakaiti i te tere pakaru.
- Ngā Whakamahinga: He ōrite te rahi o te matūriki o te toenga whakatere, ā, he tino angiangi (kāore he mea iri i muri i te whakarewanga), ā, kāore e ārai i te mata tātari o te huihuinga hurihuri.
- Ngā Pānga: Ka heke te tere pakaru o te miro miro polyester mā te neke atu i te 30%, ka pai ake te kaha me te ōrite o te roa o te muka, ā, ka eke te tere o ngā hua pai ki te 100%.

6. Ngāwari ki te whakamahi me te urutau ki te taputapu
- Ngā Whakamahinga: Ka taea te whakarewa tika ki roto i te ethylene glycol hei whakarite i tētahi otinga whakakorikori ōrite (te kukū 2%–5%), kia taea ai te ine me te whāngai tonu me te tika.
- Ngā Pānga: Ka ārai i te mōrearea o te ua i puta mai i te waikura o te antimony acetate, ā, ka whakakorea hoki te hiahia mō te huri me te tukanga whakamararatanga o te antimony trioxide, kia pai ai mō ngā tipu polyester haere tonu i te tauine nui (he rau tana neke atu rānei te putanga ia rā).

III. Ngā Tuhipoka Tāpiri (Ngā Taunakitanga Kōwhiringa)

Ki te whakatauritea ki te antimony acetate, he nui ake te pumau o te antimony glycol i te wera, ā, he iti ake te ngawari ki te whakangawari, ki te pirau rānei i ngā pāmahana polycondensation i runga ake i te 300°C, ā, ka whakaitihia te whakatakotoranga antimony i roto i ngā paipa korehau.
- Ki te whakataurite ki te antimony trioxide: Ko te wairewatanga o te antimony glycol he >10% (wāhanga papatipu, 80℃) i roto i te ethylene glycol, ko te wairewatanga o te antimony trioxide he iti iho i te 0.1%, nō reira he pai ake tōna mararatanga me tōna mahi tīmatanga i te mea whakamutunga.
- Ngā herenga tono: Kāore i te pai mō ngā pūnaha kore-antimony (pērā i ētahi pounamu whakakī-wera me ngā takai hauora), engari ka taea te whakamahi hei otinga whakawhiti i roto i te huringa whakaiti-antimony.