Maganin Ethylene Glycol

Ethylene Glycol Antimony / Antimony Triglycolate – Sifofin Halittar Jiki

Bayanin Kasuwanci na Ethylene Glycol Antimony

Fakiti: Jakunkunan da aka haɗa da filastik na aluminum an cika su da injin tsotsa. Kowace jaka tana da nauyin kilogiram 15 ko 25 kuma an cika ta a cikin fakiti ɗaya a kowace tan.

Menene wuraren amfani da takamaiman amfani da antimony glycol?

I. Manyan Yankunan Aikace-aikace

Antimony glycolate wani sinadari ne mai inganci, mai tsafta, kuma mai kauri, wanda aka fi amfani da shi a masana'antar polyester, musamman a cikin hanyoyin narkewar polycondensation ta amfani da terephthalic acid (PTA) da ethylene glycol (EG) a matsayin kayan masarufi. Musamman, ya ƙunshi waɗannan ƙananan sassa:

1. Samar da resin polyester (PET)
- Kwalayen polyester masu siffar fiber (don zare da filament na polyester)
- Kwalaben polyester masu siffar kwalba (don ruwan sha, abubuwan sha masu carbonated, kwalaben da ke cike da zafi, da sauransu)
- Chips ɗin polyester na fim (don fina-finan gani, fina-finan rufe wutar lantarki, da fina-finan marufi)

2. Polyester da copolyesters da aka gyara
- Polyester mai ƙarancin sinadarin diethylene glycol (DEG)
- Polyester mai rini na Cationic (CDP)
- Tsarin polybutylene terephthalate (PBT) mai rage kiba (yana buƙatar tsari)

3. Tsarin Sake Amfani da Polyester da Inganta Danko
- Narkewa da kauri kayan PET (matakin kafin magani na SSP)
- Ingantaccen tsarin polycondensation na polyester da aka sake yin amfani da shi (r-PET)

II. Takamaiman Aikace-aikace da Fa'idodin Fasaha

Antimony glycolate yana maye gurbin magungunan gargajiya (kamar antimony trioxide da antimony acetate) a cikin halayen polyester polycondensation, kuma takamaiman aikace-aikacensa da haɓaka aikinsa sune kamar haka:

1. Ingancin tasirin haɗakar iska mai ƙarfi, wanda ke ƙara ƙarfin samarwa.
- Aikace-aikace: A matsayin babban mai kara kuzari, yana hanzarta matakin polycondensation bayan transesterification ko esterification kai tsaye, wanda ke ƙara yawan polymerization sosai.
- Tasiri: Da irin wannan adadin antimony, lokacin amsawar yana raguwa da 10%–15%; ko kuma a cikin lokaci guda, matakin polymerization (DP) da intrinsic viscosity (IV) sun fi girma, kuma an inganta yawan sararin naúrar.

2. Rage yawan sinadarin antimony da ke cikin samfurin da aka gama don biyan buƙatun kore da kariyar muhalli.
- Aikace-aikace: Saboda yawan ƙarfinsa na catalytic, adadin da ake buƙata don ƙarawa shine kashi 60%–70% kawai na na catalysts na gargajiya (bisa ga antimony element).
- Sakamako: Ana iya sarrafa ragowar sinadarin Sb a cikin kwakwalwan PET a ≤150 ppm, kuma wasu ƙananan kwalayen kwalba na iya zama ƙasa da ≤100 ppm, wanda ya yi ƙasa da 200-250 ppm na tsarin antimony acetate, wanda ya cika ƙa'idodin ƙaura na kayan abinci da EU, US FDA da sauran hukumomi suka sanya.

3. Inganta launi da halayen gani na samfuran polyester
- Amfani: Antimony glycol yana narkewa gaba ɗaya kuma yana warwatse a cikin tsarin amsawar, yana guje wa yawan catalysis na gida ko tarin ƙarfe.
- Sakamako: An rage darajar b (ƙimar rawaya) na kwakwalwan PET da aka samar da raka'a 1-2 idan aka kwatanta da tsarin antimony trioxide, yayin da aka inganta ƙimar L (haske), wanda hakan ya sa suka fi dacewa da samar da fina-finan gani da zare masu haske sosai.

4. Rage halayen da ba su dace ba da kuma inganta alamun ingancin samfur.
- Aikace-aikace: Rage halayen da ba su dace ba kamar ethylene glycol etherification da kuma hana samuwar diethylene glycol (DEG).
- Tasiri: Ana iya sarrafa adadin DEG a cikin PET a ≤0.8% (idan aka kwatanta da kusan 1.0%–1.2% a cikin tsarin gargajiya), inganta wurin narkewa da kwanciyar hankali na zafi, da haɓaka aikin juyawa da busassun abubuwa.

5. Inganta ƙarfin juyawa bayan an sarrafa shi don rage saurin karyewa.
- Aikace-aikace: Ragowar mai kara kuzari iri ɗaya ce kuma tana da kyau sosai a girman barbashi (babu wani abu da aka dakatar bayan narke), kuma baya toshe allon matattarar kayan juyawa.
- Tasiri: Yawan karyewar katsewar filament na polyester ya ragu da fiye da kashi 30%, an inganta ƙarfin zare da daidaiton tsayi, kuma ƙimar samfuran da suka fi kyau na iya kaiwa kashi 100%.

6. Sauƙin amfani da kuma daidaitawar na'ura
- Aikace-aikace: Ana iya narkar da shi kai tsaye a cikin ethylene glycol don shirya maganin mai kara kuzari iri ɗaya (maida hankali 2%–5%), wanda ke ba da damar ci gaba da aunawa da ciyarwa daidai.
- Tasiri: Yana guje wa haɗarin ruwan sama da ke haifar da hydrolysis na antimony acetate, kuma yana kawar da buƙatar niƙa da watsawa na antimony trioxide, wanda hakan ya sa ya dace da manyan tsire-tsire masu ci gaba da amfani da polyester (layi ɗaya kowace rana na ɗaruruwan tan ko fiye).

III. Bayanan Ƙarin Bayani (Shawarwarin Zaɓe)

Idan aka kwatanta da antimony acetate, antimony glycol yana da ƙarfin thermal kuma ba shi da saurin sublimation ko rugujewa a yanayin zafi na polycondensation sama da 300°C, don haka yana rage yawan shigar antimony a cikin bututun injin.
- Idan aka kwatanta da antimony trioxide: Antimony glycol yana da narkewar >10% (ƙasa da yawa, 80℃) a cikin ethylene glycol, yayin da antimony trioxide yana da narkewar ƙasa da 0.1%, don haka watsewar sa da aikin farko sun fi na ƙarshe kyau sosai.
- Iyakokin amfani: Bai dace da tsarin da ba ya ɗauke da antimony ba (kamar wasu kwalaben da aka cika da zafi da marufi na likita), amma ana iya amfani da shi azaman mafita ta wucin gadi wajen canza antimony-rage.