1. Chii chinonzi PVC sheet?
Pepa rePVC ipurasitiki yakagadzirwa nevinyl chloride sechinhu chekutanga, ine zvinosimbisa, mafuta, uye zvinozadza. Inoratidza kushanda kwakanaka kweantioxidant, inodzivirira zvakasimba maacids uye redox reactions, ine simba guru, kugadzikana kwakanyanya, uye haibati, zvichiita kuti ikwanise kudzivirira kukuvara kubva pakuchinja kwemamiriro ekunze. Mhando dzakajairika dzemapepa ePVC dzinosanganisira marudzi akajeka, machena, matema, mavara, uye grey.
2. Ndezvipi zvakanakira pepa rePVC?
Mapepa ePVC ane mabhenefiti akawanda, anosanganisira kuramba ngura, kusatsva, hunhu hwekudzivirira kupisa, uye kuramba oxidation. Pamusoro pezvo, anogona kudzokororwa uye ane mitengo yakaderera yekugadzira. Nekuda kwekushanda kwawo kwakasiyana-siyana uye mutengo wakaderera, anogara achibata chinzvimbo mumusika wemapepa epurasitiki.
3. Mapepa ePVC anoshandiswa kuitei?
Mapepa ePVC anosiyana-siyana, anowanikwa mumhando dzakasiyana-siyana dzakadai semapepa ePVC akajeka, mapepa ePVC ane frosted, mapepa ePVC egirini, mapepa ePVC anotenderera, nezvimwewo. Nekuda kwekushanda kwawo kwakanaka pakugadzirisa, mitengo yakaderera yekugadzira, kuramba ngura, uye hunhu hwekudzivirira kupisa, mapepa ePVC anowanzo shandiswa kugadzira mavharo ekubatanidza ePVC, makadhi ePVC, mafirimu akaomarara ePVC, uye mapepa akaomarara ePVC.
4. Ndezvipi zvakaipa zvemapepa ePVC?
PVC sheet ipurasitiki inoshandiswa zvakanyanya inogadzirwa nepolyvinyl chloride, pamwe chete neplasticizers uye antioxidants. Haina chepfu yoga, asi zvinhu zvikuru zvinobatsira, zvakaita seplasticizers uye antioxidants, zvine chepfu. Mapurasitiki anoshandiswa mumapepa ePVC ezuva nezuva anosanganisira dibutyl terephthalate uye dioctyl phthalate, ese ari maviri ane chepfu. Antioxidant lead stearate inoshandiswa muPVC ine chepfuwowo. Mapepa ePVC ane lead salts anogona kuburitsa lead kana akasangana nezvinhu zvinonyungudutsa zvakaita seethanol ne ether. Mapepa ePVC ane lead-based antioxidants dzimwe nguva anoshandiswa pakurongedza chikafu, asi paanosangana nezvikafu zvakaita se fried dough sticks, fried cakes, fried hove, bickened meat, pastries, uye snacks, lead molecules anogona kupararira mumafuta. Saka, mapurasitiki ePVC haafanire kushandiswa kuchengetedza chikafu, kunyanya chikafu chine mafuta. Pamusoro pezvo, pakupisa kwakanyanya kuri pedyo ne50°C, polyvinyl chloride plastic products dzinoora zvishoma nezvishoma, dzichiburitsa hydrogen chloride gas, iyo inokuvadza hutano.
5. Mapepa ePVC Akachengeteka Here Pakudya?
Mapepa ePVC anogona kunge asina chepfu kana akachekwa, asi chete kana akagadzirwa nePVC yemhando yepamusoro uye zvimwe zvinowedzerwa zvinoenderana nezvinodiwa. Mapepa ePVC emhando yepamusoro haana chepfu, haana hwema, uye akakodzera kusangana nechikafu zvakananga kana zvakananga, zvichienderana nekugadzirwa kwawo uye kushandiswa kwawo. Mapepa aya ePVC akachengeteka kana akachekwa anowanzo shandiswa mumapakeji echikafu, mablister packs, macling films, matireyi echikafu, uye mavharo ekudzivirira.
Zvisinei, haasi mapepa ese ePVC anoonekwa seakachengeteka pakudya. Mapepa ePVC emhando yepamusoro anogona kunge aine mapurasitiki kana zvimwe zvinhu zvisingabvumirwe kuti zvisanganiswe pakudya. Kuti uve nechokwadi chekuti zvakachengeteka, gara uchisimbisa kuti pepa rePVC rinotevedzera mitemo yeFDA neEU (EC) yekubatana nechikafu, uye kumbira mapepa eruzivo rwekuchengetedza zvinhu zvemugadziri.
6. Mapepa ePVC haadzoreki here?
Ehe, mapepa ePVC anodzivirira moto zvisizvo kana tichienzanisa nemamwe mapurasitiki akawanda. Nekuda kwehuwandu hwawo hwechlorine, PVC inozvidzima yoga kana moto wekunze wabviswa, izvo zvinoderedza kupararira kwemoto zvakanyanya.
Mapepa ePVC anowanzo shandiswa mukushandiswa uko kuchengetedzeka kwemoto kwakakosha, senge zvinhu zvekuvaka, mapaneru emadziro, kuputira magetsi, zviratidzo, uye nzvimbo dzemaindasitiri. Kazhinji, mapepa ePVC anogona kusangana nezvinodiwa zvepasi rose zvekudzivirira moto seUL94 V-0/V-1 kana zvakafanana, zvichienderana nechimiro.
Kune mapurojekiti ane mitemo yakasimba yekudzivirira moto, mapepa ePVC anodzivirira moto ane mashandiro akawedzerwa anogona kugadziriswa kuti asvike pamitemo chaiyo yekuvaka uye zvinodiwa zvekudzivirira moto.
