Chii chinonzi butylene glycol? Ongororo yakazara yekemikari iyi
Chii chinonzi butanediol? Zita rokuti butanediol rinogona kunzwika risina kujairika kuvanhu vakawanda, asi butanediol (1,4-Butanediol, BDO) inoita basa rinokosha zvikuru muindasitiri yemakemikari uye muupenyu hwezuva nezuva. Ichi chinyorwa chinokupa ongororo yakadzama yezvivakwa uye mashandisirwo ebutanediol uye kukosha kwayo mumaindasitiri akasiyana.
I. Chemical Properties uye Mamiriro eButanediol
Chii chinonzi butanediol? Kubva pamakemikari ekuona, butanediol inhengo yehupenyu ine mapoka maviri e-hydroxyl (-OH) uye chimiro chemakemikari ndeyeC4H10O2. Iyo isina ruvara, ine viscous liquid ine yakanaka solubility, inogona kunyungudutswa mune zvakasiyana-siyana zvinonyungudutsa zvakadai semvura, alcohols, ketones, etc. The molecular structure ye butanediol ine maviri hydroxyl mapoka, uye kemikari formula ndeye C4H10O2. Nekuda kwechimiro chayo chemorekuru chine mapoka maviri ehydroxyl, butanediol mune kemikari reaction inoratidza yakakwira reactivity, inogona kutora chikamu mu esterification, etherification, polycondensation uye kumwe kuita kwemakemikari.
Chechipiri, kushandiswa kukuru kwebutanediol
Kuongorora kuti chii chinonzi butanediol haigone kupatsanurwa kubva pakushandiswa kwayo kwakakura muindasitiri. Butylene glycol inonyanya kushandiswa mukugadzirwa kwemapolymers, solvents uye mamwe akakosha emakemikari epakati.
Kugadzirwa kwepolymer: butanediol chinhu chakakosha mbishi kugadzirwa kwepolyurethane uye polyester resins. Mukugadzira polyurethane, inoshandiswa sengetani yekuwedzera uye yakapfava segment zvinhu kuti ipe chigadzirwa chakanaka elasticity uye kupfeka kuramba; mukugadzirwa kwepolyester, butylene glycol chinhu chakakosha pakugadzira thermoplastic polyester (eg PBT) uye unsaturated polyester resin.

Solvents: Nekuda kwekunyungudika kwayo kwakanaka, butylene glycol inoshandiswawo sechinhu chinonyungudutsa mune dzakasiyana siyana dzekushandisa muindasitiri yemagetsi, machira, detergents uye cosmetics. Kunyanya muzvizoro, butylene glycol inoshanda seyakanyorovesa uye inonyungudutsa, ichibatsira kuvandudza kugadzikana kwechigadzirwa uye ductility.

Makemikari epakati: Butylene Glycol ndiyo yekutanga yakakosha yekugadzirwa kwe tetrahydrofuran (THF) uye gamma-butyrolactone (GBL) .THF inoshandiswa zvakanyanya mukugadzirwa kwepamusoro-soro, zvinonamira uye indasitiri yemishonga, nepo GBL inokosha yepakati inoshandiswa mukugadzirwa. yemishonga yezvipembenene, mishonga uye zvinonyungudutsa.

Chechitatu, kugadzirwa kwebutanediol
Kunzwisisa kuti butanediol chii, iwe unofanirwawo kutarisa pane yayo yekugadzira maitiro. Parizvino, nzira huru dzekugadzira butanediol dzinosanganisira:
Aldehyde-alcohol condensation method: Iyi ndiyo inonyanya kushandiswa kugadzira maitiro, kuburikidza ne condensation yeacetaldehyde uye formaldehyde kugadzira 1,3-dioxolane, uyezve hydrolysed kugadzira butanediol. Iyi nzira ine zvakanakira nzira yakakura uye yakaderera mutengo wezvinhu.

Ethylene oxide nzira: Ethylene oxide inobatwa necarbon dioxide pasi pechiito checatalyst kubudisa vinyl carbonate, iyo inobva yashandiswa hydrolysed kugadzira butanediol. Mamiriro ekuita eiyi nzira akapfava, asi mari mumidziyo yakakwira.

IV. Matarisiro emusika weButanediol
Kukurukura kuti butanediol chii, zvinodikanwa zvakare kuongorora tarisiro yayo yemusika. Nekuwedzera kuri kuita kwepasirese kudiwa kwezvinhu zvepamusoro, kudiwa kwemusika kwebutanediol kuri kukurawo gore negore. Kunyanya mumunda wezvigadzirwa zvemagetsi, mota dzemagetsi matsva uye machira ane hushamwari kwezvakatipoteredza, kudiwa kwebutanediol kuri kuvimbisa.
Nekufambira mberi kwetekinoroji, kutsvagisa uye kusimudzira kwebio-based butanediol kuri kufambirawo zvishoma nezvishoma. Iko kushandiswa kweichi chinovandudzwa sosi kuchawedzera kuwedzera nzvimbo yemusika yebutanediol uye zvakare kubatsira kudzikisa kutsamira pane petrochemical zviwanikwa.
Mhedziso
Chii chinonzi butanediol? Haisi chete yakakosha kemikari mbishi zvinhu zvine huwandu hwakasiyana hwekushandisa mumaindasitiri akati wandei, asi zvakare inokwezva kutarisisa kwayo kwakanakisa kemikari zvimiro uye kuita zvakasiyana. Mune ramangwana, nekufambira mberi kwetekinoroji uye kuwedzera kudiwa kwemusika, butanediol icharatidza kukosha kwayo kwakakosha mune mamwe minda.