Uruhare rwibikoresho bya PVC mubikoresho bya PVC: Porogaramu nubushishozi bwa tekinike

Ibikoresho bya PVC (Polyvinyl Chloride) biragaragara hose mubikorwa remezo bigezweho, amazi meza, amazi, amazi, hamwe nogutwara amazi yinganda. Ibyamamare byabo bituruka ku nyungu zisanzwe: kurwanya imiti, gukora neza, no gukomera. Nyamara, imiterere ya molekulari ya PVC - irangwa no gusubiramo ibice bya vinyl chloride - bituma ishobora kwangirika bitewe nubushyuhe bwumuriro, okiside, na UV. Aha nihoPVC stabilisateurbigira uruhare runini: bigabanya kwangirika, kwemeza imiyoboro ikomeza kugumana ubunyangamugayo no gukora mubuzima bwabo bwa serivisi. Hasi nisesengura rirambuye kubyo basabye, uburyo bwabo, hamwe nuburyo bwo guhitamo muri sisitemu ya PVC.

1. Kubera ikiKora PVCIbikoresho byo mu miyoboro bisaba Stabilisateur

PVC ihura n’iyangirika ridasubirwaho iyo ihuye nubushyuhe bwo hejuru (busanzwe muburyo bwo gukuramo cyangwa gutera inshinge) cyangwa guhangayikishwa n’ibidukikije igihe kirekire (urugero, urumuri rwizuba, ubushuhe, cyangwa imiti). Inzira yambere yo kwangirika ni dehydrochlorination: ubushyuhe cyangwa ingufu za UV zica intege C-Cl zidakomeye, kurekura aside hydrochloric (HCl) no gutangiza urunigi ruganisha kumurongo wa polymer. Ibi birigaragaza nka:

• Guhindura ibara (umuhondo cyangwa igikara)

• Gutakaza imbaraga zingaruka no guhinduka

• Kumenagura cyangwa gutobora, kubangamira kurwanya imyanda

• Kwanduza amazi yatwarwe (ingenzi muri sisitemu y'amazi meza)

Stabilisateur ihagarika iki gikorwa, bigatuma iba ingenzi mubikorwa bya PVC.

2. Uburyo bwa PVC Stabilisateur mu bikoresho byo mu miyoboro

Stabilisateurs ikora binyuze muburyo bwinshi bwo guhuza PVC:

•HCl Scavenging:Kutabogama aside hydrochloric yarekuwe, ikayirinda gutera iyangirika.

•Kubuzwa gukabije kubuntu:Kurangiza urunigi rwatangijwe nubushyuhe cyangwa UV yakozwe na radicals yubusa.

•Ibyuma bya Ion bikurikirana:Huza umwanda w'icyuma (urugero, icyuma, umuringa) byihutisha kwangirika.

•UVIngabo:Tekereza cyangwa ushire imishwarara ya UV, ingenzi kubikorwa byo hanze byo hanze (urugero, amazi yo hejuru yubutaka).

•Imfashanyo yo gusiga:Stabilisateur zimwe (urugero, UV stabilisateur), calcium stearate igabanya ubukana mugihe cyo gutunganya, ikarinda ubushyuhe bwinshi.

3. Ubwoko bwa Stabilisateur bukoreshwa mubikoresho bya PVC

Guhitamo stabilisateur biterwa nuburyo bwo gutunganya, ibisabwa-gukoresha amaherezo, no kubahiriza amabwiriza. Ubwoko busanzwe burimo:

4. Ibipimo byingenzi byo gutoranya ibipimo byo guhuza imiyoboro

Mugihe hagaragajwe stabilisateur kubikoresho bya PVC, ababikora bagomba gutekereza:

•Ibipimo byo gutunganya:Ubushyuhe bukabije / gushushanya (160–200 ° C kumiyoboro) hamwe nigihe cyo gutura byerekana ubushyuhe bukenewe bwumuriro. Ubushyuhe bwo hejuru (urugero, imiyoboro y'amazi ashyushye) busaba stabilisateur hamwe nubushyuhe bukomeye (urugero, organotine).

•Kurangiza-Gukoresha Ibidukikije:Imiyoboro y'amazi meza isaba NSF / ANSI 61 cyangwa icyemezo cya WRAS, gutoneshaCa-Zncyangwa stabilisateur ya organotine. Imiyoboro yo hanze ikenera stabilisateur UV urugero, ibangamira urumuri rwa amine (HALS).

•Kubahiriza amabwiriza:Isi yose ibuza ibyuma biremereye (Pb, Cd) itera inganda kugana ubundi buryo bwangiza ibidukikije (Ca-Zn, stabilisateur zishingiye ku binyabuzima).

•Igiciro na Performance:Mugihe icyuma gishingiye kuri stabilisateur ihendutse, ibiciro byigihe kirekire (urugero, ihazabu igenga amategeko, ibibazo byo gutunganya ibicuruzwa) bitanga amahitamo arambye.

5. Ibintu bigenda bigaragara muburyo bwa tekinoroji

Mugihe amabwiriza y’ibidukikije akomera kandi arambye akagenda ashyirwa imbere, inganda za PVC ziragenda zerekeza:

•Sisitemu yo hejuru-Ca-Zn Sisitemu:Yongerewe imbaraga hamwe na co-stabilisateur (urugero, polyoli, zeolite) kugirango ihuze imikorere yubushyuhe bwubuyobozi bushingiye kubindi.

•Imikorere myinshi:Gukomatanya ubushyuhe bwumuriro, kurwanya UV, hamwe no gusiga amavuta mumyonge imwe kugirango byoroshe gukora.

•Bio-ishingiye kuri Stabilisateur:Bikomoka ku bintu bishobora kuvugururwa (urugero, ibimera bishingiye ku bimera), bihuza n'intego z'ubukungu buzenguruka.

PVC stabilisateurni ishingiro ryimikorere no kuramba bya PVC imiyoboro, ituma ikoreshwa neza kandi yizewe mubikorwa remezo bikomeye. Kuva mukurinda kwangirika mugihe cyinganda kugeza kumyaka myinshi ya serivise ahantu habi, uruhare rwabo ntirusimburwa. Inganda zigenda zitera imbere, kwibanda ku burozi-buke, imbaraga zikora cyane-cyane cyane calcium-zinc inganda - bizatera udushya, guhuza imikorere ninshingano z’ibidukikije. Ku ba injeniyeri n'ababikora, guhitamo stabilisateur ntabwo ari amahitamo ya tekiniki gusa ahubwo ni icyemezo cyo kuramba, umutekano, no kubahiriza amabwiriza.