PVC - chii here? PVC kugadzirwa rwokugadzira uye mafomu

Kana ukasarudza kushandisa pakuvaka kana yokugadzirisa PVC, zvakakosha kuziva asati kushandisa chigadzirwa. Izvi zvinhu chinhu chakaita zvokugadzirwa thermoplastic textures.

unhu PVC

In fekitari mamiriro yakabereka vaviri PVC mifananidzo, okutanga chiri plasticized, apo rechipiri - unplasticized. Mukupera nyaya, mumwe plasticizer rinoshandiswa. Externally, PVC ane chimiro chena upfu iri odorless. It ane yepamusoro uye simba zvivako zviri dielectricity. Kana ukasarudza kutenga PVC, chii zvakafanira kudzidza. Zviri husingakwanisi alkalis, chicherwa mafuta, acids, uye insoluble mumvura. Kurudzirai nemukuparadzwa uye kuzvimba ketones, esters, uye anonhuhwirira uye chlorinated Mahydrocarbon. Material runotsungirira oxidation uye akapotsa haachemeri. Polyvinyl chloride ane kwete chaizvo anoyevedza kupisa nemishonga maitiro kana vachibatwa kutonhora rworwendo 100 rwunotanga anoora. Kuti vawane kupisa kurwisa Unganatsiridza ari solubility pakati PVC pachena kuti chlorination.

Makuriro Akaita kushandiswa

Nhasi, zvikuru kuwana kwakapararira PVC. Chii wose anofanira kuziva handyman uye nyanzvi mune kuvakwa. Izvi zvinhu inoshandiswa mukurapa, achitsiva girazi uye rabha. Saka, takakwanisa kuwana imwe-nguva zvinhu. Nokuda kwayo makemikari isimbe uye inertia, PVC akawana mukuru kukurumbira pakati akati nzvimbo. Products pairi akasiyana uye nyore kugadzirwa nevanhu, uye ndizvo isingadhuri zvikuru kupfuura yamboshandiswa zvinhu.

PVC rinoshandiswa zvokufambisa indasitiri. It rinoshandiswa kugadzirwa musuo ukomba, nezvokutsamidza maoko, uyewo kusikwa waya kuputira. Chaizvo nokuti motokari iyi vakatanga nhaka kwenguva refu youpenyu, iro vakawedzerwa tichienzanisa yapfuura manhamba kwemakore matanhatu. Izvi achawedzera yakachengeteka pakufamba, sezvo pamwe PVC aigona kuumba airbags uye anodzivirira ukomba, anogona kudzivirira vanhu kubva mukukuvara kana tsaona.

Repair uye kuvakwa

Kufunga polyvinyl chloride kuti zvinokwanisika kudzidza kubva ino. Izvi zvinhu unoshandiswa nhasi pamasikiro maonero. Akadaro mukana akazviratidza nemhaka yokuti yazvino unokubvumira kuumba PVC chigadzirwa chero chimiro. Saka, zvaibvira kusika nechomukati zvinhu. Kakawanda, polymer ichi chinogona kuwanika chivakwa. Inobereka vanopfeka nemishonga, vanachandagwinyira, lightweight zvinogadzirwa kuti zvakakwana titsungirire ngura uye nemakemikari nemigumisiro. Akadaro mupristi kukurumbira pakuvaka indasitiri ndiyewo yakafanira pamoto kuchengeteka, mashoko acho kwakaoma vesa uye arega unopfuta uye dzinopfungairira apo kubvisa tembiricha kunobva. Ndokusaka zvigadzirwa izvi zvinogona kushandiswa pane zvinhu, izvo zvinodiwa kuti kwakawedzera moto vakachengeteka. PVC zvokunyama anozivikanwa mukurumari, 75 muzana sepombi vakaitwa mariri kuratidza rinokosha rinoitwa kwemakore anopfuura 40.

kugadzirwa michina

Kugadzirira polyvinyl chloride yakakura polymerization riri kuitwa mbishi zvinhu, izvo anoita sezvo raive nebutiro chloride. Yainyanya kushandiswa indasitiri waiva slurry kwacho, izvi imhaka yokuti zvinhu zvakakwirira unongotaura. mumwe polymerization kwakadaro rinoitwa munyika periodic ino. Vinyl chloride, izvo zviri mune mari 0.02 - 0,05 muzana aqueous svikiro akashandiswa huru zvinoriumba. The wakagadzirira feedstock iri neshungu kuti 65 madhigirii, uye ipapo pasi yakafanana zvazvinoita kuwana homogeneous chigadzirwa. The polymerization kuitika mumate kuti raive nebutiro chloride. Pakupedzisira, asingagoni kuwana porous microgranules. Kugadzirwa zvakazara zvoga, nepo polymerization rinoitwa munyika reactors vane vhoriyamu mukuru 200 cubic metres. Pashure pokupedza polymerization mwero raive nebutiro chloride, uko vakaita nenguva ino, kusvika 90 muzana. Zvinhu zvaisabvumirwa kushandiswa vanobviswa, apo PVC ari sieved uye waoma with hot mhepo. Pashure paizvozvo kunoitika kavha. PVC, Zvivako iyo kunge pamusoro apa, pakupedzisira nhano iri dzikwanise raive nebutiro liner kana epurasitiki akakura.

Wokupedzisira PVC zvigadzirwa

PVC zvinhu zvinogona dzikwanise raive nebutiro liner. Iye chigadzirwa rakaoma. Dzinoratidzwa yakakwirira nesimba zvemaziso, nemishonga makemikari kurwisa uye isapinda. Pakati zvikanganiso vangazivikanwa murombo kwechirwere simba, murombo chando kuzvidzivirira uye zvishomanana uchishandisa pachikumbaridzo. Maererano stiffener, dzamutswa zvokudya kuchikosha elasticity. Vanewo kuzivikanwa mvura nemishonga uye mafuta nemishonga. Ivo vanosangana mukuru kukanganisa-siyana zvinoita zvokufembedzwa.

mhedziso

PVC, pombi iyo anobudiswa nhasi, pamire somumwe rakajairika zvinhu kusanganisira mapurasitiki. kugadzirwa World anenge 17 muzana zvachose goho kuti mapurasitiki zvigadzirwa, uye pokutanga wechitatu pakati Polymers. Products dzakagadzirwa PVC, akawana kushanda mu sectors vazhinji upfumi, indasitiri, rinorema engineering, mushonga uye kurima. Nhasi, anenge imba dzose vakagadzirira pamwe mahwindo mapurasitiki, uyewo vakashandisa zvigadzirwa pamusoro achishandisa zvinorondedzerwa zvinhu. Hazvina kwakapararira anoratidza kwazvo Qualitative zvechadenga zvinhu pamusoro rine simba yakakwirira, kuramba zvokunze kukuvadza uye izvi zvakasiyana siyana hunhu.