Pasirose - Premier PVA: Polymer Yemhando Yepamusoro Yekushandisa Zvakasiyana-siyana
Minda mikuru yekushandisa
PVA inoshandiswa zvakanyanya muindasitiri yemachira. Inoshanda semushonga wehukuru hweshinda, ichivandudza kusimba kwadzo uye kutsvedzerera panguva yekuruka. Izvi zvinobatsira kuderedza kutyoka uye kuwedzera kunaka kwejira. Mushure mekuruka, PVA inogona kubviswa zviri nyore nekusuka, zvichisiya jira riine hunhu hwaro hwepakutanga. Pamusoro pezvo, PVA inoshandiswa mukugadzira machira ekuputira uye manamati, zvichipa kunamira kwakanaka uye kugara kwenguva refu.
Muindasitiri yemapepa, PVA inoshandiswa semushonga wekuisa saizi pamusoro uye semushonga wekubatanidza. Semushonga wekuisa saizi pamusoro, inovandudza kudzivirira mvura, kusimba, uye kugona kudhindwa kwepepa. Inogadzira firimu rakatetepa, rinoonekera pamusoro pepepa, ichidzivirira inki kuti isapararire uye inovandudza kujeka kwemifananidzo yakadhindwa. Semushonga wekubatanidza, PVA inoshandiswa mukugadzira mapepa akaputirwa nebhodhi remapepa, ichisimbisa kubatana pakati pechifukidziro nepasi, uye ichivandudza kusimba kwese uye kugara kwenguva refu kwezvigadzirwa zvemapepa.
PVA chinhu chakakoshawo muindasitiri yekunamira. Ine hunhu hwakanaka hwekunamira, kunyanya pazvinhu zvine maburi zvakaita sehuni, bepa, uye machira. Zvinonamira zvakagadzirwa nePVA zvinonyungudika mumvura, zviri nyore kushandisa, uye zvine simba rakanaka rekubatanidza. Zvinoshandiswa zvakanyanya muindasitiri yekuvaka, fenicha, uye yekurongedza pakubatanidza zvinhu zvakasiyana-siyana. Pamusoro pezvo, zvinonamira zvePVA zvinogona kuchinjwa nezvimwe zvinowedzera kuti zvivandudze hunhu hwazvo hwekupisa, hunhu hwemvura, nezvimwe zvinhu kuti zvienderane nezvinodiwa zvekushandisa.
Munyaya yekuputira, PVA inoshandiswa semushonga wekugadzira firimu. Inogadzira firimu rinoonekera, rinochinjika, uye rinodzivirira mvura pamusoro pechinhu chakafukidzwa, zvichidzivirira kubva kuhunyoro, makemikari, uye mwaranzi yeUV. Kuputira kwakavakirwa paPVA kunoshandiswa zvakanyanya mukudzivirira huni, simbi, uye purasitiki pamusoro. Inogona zvakare kushandiswa seprimer kana sepakati pekuvhara kuti ivandudze kunamira uye kushanda kweganda repamusoro.
Magadzirirwo
| Zita rechigadzirwa | Doro rePolyvinyl | |||||||||
| Fomura yeMakemikari | (C2H4O)n | |||||||||
| Kurema kweMorekuru | 30,000–150,000 g/mol | |||||||||
| Chitarisiko | Hupfu chena kana granule | |||||||||
| Nzvimbo Yokunyunguduka | 230–240°C | |||||||||
| Kuwanda kwevanhu | 1.26–1.31 g/cm³ | |||||||||
| Nhamba yeCAS | 9002-89-5 | |||||||||
| Kodhi yeHS | 39053000 | |||||||||
| EINECS Kwete | 209-183-3 | |||||||||
| Kushandiswa | Inoshandiswa mumaglues, machira, mapepa ekuputira, uye mafirimu | |||||||||
Pepa Rekudzora Hunhu
| Zita rechigadzirwa | Doro rePolyvinyl | ||||||
| CHINHU | Kukosha Kwakajairika (%) | Kukosha kwekuyedza (%) | |||||
| Dhigirii reKuongororwa kweUdhakwa%(mol/mol) | 86.5～88.0 | 86 | |||||
| Kusviba kwe mPa·s | 45.0～55.0 | 48 | |||||
| Zviri Mukati Zvinochinja-chinja | ≤5 | 3 | |||||
| Zviri Mukati meAsh% | ≤0 | 0 | |||||
| kukosha kwepH | 5.0 | 5.0 | |||||
| Saizi yezvikamu yakakura kupfuura 10mesh | - | 2 | |||||
| Saizi yezvikamu zvidiki pane 60mesh | - | 2 | |||||
Muchidimbu
PVA yedu yeGlobal - Premier inowanikwa mumhando dzakasiyana siyana, kusanganisira hupfu, granules, uye mhinduro, kuti isangane nezvinodiwa nemaindasitiri akasiyana-siyana. Giredhi rega rega rePVA rine hunhu hwakaita sekusviba, mwero wepolymerization, uye mwero wealcoholization, izvo zvinogona kugadziriswa zvichienderana nezvinodiwa nevatengi. Zvigadzirwa zvedu zvePVA zvakaputirwa muhunyoro - hazvipindi mvura uye zvinoputirwa nemhepo kuti zvive nechokwadi chekuti zvine hunhu uye kugadzikana panguva yekuchengetwa nekutakurwa. Ungave uri mugadziri wemachira muAsia, muchina wekugadzira mapepa muEurope, mugadziri weglue muNorth America, kana kambani yekuputira muSouth America, Global - Premier PVA yedu ndiyo polymer yakavimbika uye yemhando yepamusoro inogona kukubatsira kuvandudza mashandiro uye mhando yezvigadzirwa zvako.