amakuru

Nkibikoresho byose,polyester idahagijeyakoreshejwe neza mubitambaro, fibre fibre ikomeza plastike, amabuye yubukorikori, ubukorikori, nizindi nzego.Nyamara, ibara ry'umuhondo wibisigara bituzuye byahoze ari ikibazo kubabikora.Abahanga bavuga ko ibisanzwe bitera umuhondo w’ibisigazwa bituzuye birimo ibi bikurikira:

1. Mugihe cya synthesis ya esterification ya resin idahagije, bitewe nubusaza bwumuriro bwumuhondo buterwa nubushyuhe bwo hejuru, ubushyuhe rusange bwa esterifike bwibisigazwa bituzuye ni 180 ~ 220 ° cyangwa burenga, kuri ubu bushyuhe byoroshye guhinduka umuhondo bitewe kumasaza yubushyuhe, bigira ingaruka kumiterere yibicuruzwa.

2. Umuhondo uterwa no guhura na resin imirasire ya ultraviolet biterwa ahanini no kuba hari impeta ya benzene muri resin (harimo na acide dibasic acide / anhydrides hamwe nimpeta ya benzene yatangijwe na styrene), bishobora guterwa na okiside yumuriro wa aromatiya ibice ku bushyuhe bwinshi.Gutesha agaciro, bikunze guhinduka kuri elegitoronike, bigatuma resin umuhondo.

3. Mubikorwa byo gutunganya resin, ibikoresho fatizo bihura na ogisijeni kubera imikorere mibi yikimenyetso.Urunigi rwa molekuline rusange ya polyester idahagije ntabwo ikubiyemo amatsinda ya ester gusa, amatsinda ya meridian, hamwe nitsinda rya antelope, ahubwo inagira imigozi ibiri nimpeta nziza.Ihura nubushyuhe bwa okiside, kandi imikorere igaragara nuko ibara ryibisigara rihinduka umuhondo.

4. Ingaruka zinyongeramusaruro nka antioxydants, inhibitori ya polymerisation, imiti ikiza, nibindi.Inhibitori ikoreshwa cyane, nka hydroquinone, ni Oxidation muri quinone imbere ya quinone, nayo ubwayo ifite ibara, bityo bigira ingaruka kumabara ya resin.Bamwe mubakora imiti ikiza baracyakoresha sisitemu ya acyl peroxide-tertiary amine hamwe na sisitemu yisabune ya ketone peroxide.Ibara, byoroshye-amabara.

Birumvikana, hari izindi mpamvu zitera resin guhinduka umuhondo.Muri rusange, umwuka wa ogisijeni nubushyuhe bwa ultraviolet nimpamvu nyamukuru zitera umuhondo.Acide yuzuye ya dibasike (cyangwa acide anhydride) ikoreshwa mu mwanya wa acide dibasic acide (cyangwa aside anhydride), nubwo ishobora gukoreshwa muburyo runaka, ibara ryibisigara rishobora gukorwa byoroshye, ariko urebye ibintu bitandukanye nkibikorwa bya resin na igiciro, ubu buryo ntabwo ari bwiza.

Abahanga bavuga ko usibye kuzuza gaze ya inert mu bikorwa byo kuyibika no kuyibika kugira ngo hirindwe guhura na ogisijeni uko bishoboka kose, uburyo bunoze ni ukongeramo antioxydants hamwe n’imashini zikoresha ultraviolet, zishobora gukumira neza umuhondo wa polyester idahwitse.Impuguke zasabwe kurwanya anti-umuhondo ibisubizo bidahagije ni:

Antioxydants idafite amine yaratoranijwe, kandi antioxydants yibanze nubufasha ikoreshwa mukomatanya.Antioxydants yibanze isanzwe ibangamirwa na fenolike, ishobora gufata peroxide yubusa;antioxydants yingirakamaro ni fosifite, Mugihe ibora hydroperoxide, irashobora kandi gushiramo ion ibyuma kugirango irinde ibisigazwa bya okiside.Niba ushaka kurushaho kunoza imiterere yumuhondo no guhangana nikirere, birasabwa kongeramo imashini ya UV.Ongeramo imashini ya UV irashobora guhagarika neza ibintu byumuhondo wibikoresho bya polymer hifashishijwe imirasire ya ultraviolet, kandi bigatanga uburinzi buhebuje kubicuruzwa, bikarinda neza kugabanuka kwurumuri, kubyara ibibyimba, ibibyimba, no gusibanganya bishobora guteza imbere guhangana nikirere. y'ibicuruzwa, kandi bifite ingaruka nziza zo guhuza iyo bikoreshejwe hamwe na antioxydants.Birumvikana ko gukoresha antioxydants hamwe na UV ikurura bidashobora gukemura byimazeyo ikibazo cyumuhondo, ariko mugihe runaka, irashobora gukumira neza umuhondo wa okiside yumuhondo wibicuruzwa bya polyester idahagije, bigatuma ibicuruzwa byamazi yibara ryera, kandi bikazamura ubwiza bwibicuruzwa.amanota.

Iwacupolyester idahagijeziraboneka muburyo butandukanye, kimwe no kutagira umuhondo, nkibi bikurikira:

Natwe tubyara umusarurofiberglass igenda neza,materi ya fiberglass, fiberglass mesh, nafiberglass ikozwe.

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