Hua

Tohu kounga:

Te Ahua: Te Waipiro Kore Korekore

Ihirangi: ≥ 99%

Ira rewa - 108^oC

Tohu kohua: 66^oC

Te kaha: 0.887 g / ml i te 20^oC

Ko te kohu 2.5 (vs hau)

Te kaha o te kohu <0.01 mm Hg (25^oC)

Taupū Refractive n 20 / D 1.465

Maama flash> 230^of

Tohutohu:

1. Tetrahydrofuran, nga rauemi mata o te whakahiatotanga spandex, ka taea te polycondensated ake (te whakatuwhera i te mowhiti me te re polymerization na te cation) ki te poly (tetramethylene ether glycol) (PTMEG), e mohiotia ana ko te tetrahydrofuran polyether. I whakamahia te PTMEG me te toluene diisocyanate (TDI) hei hanga i te rapa motuhake me te aukati i te kakahu, te aukati hinu, te pai o te mahi o te pāmahana me te kaha nui, me te aukati i te poly polyester polyester he mea hanga me te dimethyl terephthalate me te 1,4-butanediol. Ko te PTMEG me te taumaha ngota o te 2000 me te p-methylene bis (4-phenyl) diisocyanate (MDI) e whakamahia ana hei rauemi mata mo te polyurethane fiber elastis (spandex fiber), he rapa motuhake me etahi whakakikorua kaupapa motuhake. Ko te whakamahinga nui o te THF ko te whakaputa PTMEG. E ai ki nga tatauranga pakari, neke atu i te 80% o te THF o te ao e whakamahia ana hei whakaputa PTMEG, a ko te PTMEG e whakamahia ana hei whakaputa i te muka spandex rapa. 2.Tetrahydrofuran(THF) he whakarewa tino pai, he pai ki te whakakore i te PVC, polyvinylidene chloride me te butylamine. Ka whakamahia whānuitia hei whakarewa mo te paninga o te mata, te paninga anticorrosive, te waituhi taarua, te riipene me te whakakii kiriata. Ka taea e ia te whakahaere i te matotoru me te maama o te paparanga konumohe ka whakamahia i roto i te pati whakakikorua konumohe korekore. Te kapi taapiri, te paparanga papa o te PVC, te horoi i te reaketo o te PVC, te tango i te kiriata PVC, te miihini cellophane, te miihini taarua kirihou, te miihini polyurethane thermoplastic, te wairewa piripiri, e whakamahia whaaia ana ki te paninga mata, te whakamarumaru whakamarumaru, te mangumangu, te kaihoko tangohanga me te kaihoko maimoatanga kiri hiako.

3. Ka whakamahia hei rauemi mata mo te whakahiato koiora penei i nga rongoa rongoa. I roto i te umanga rongoa, ka whakamahia hei whakakotahi i te kebiqing, rifamycin, progesterone me etahi raau taero taiaki. Ka taea te whakamahi hei kaihoko kakara (taapiri whakauru) ki te hinu penehi me te whakarewa matua i te umanga rongoa.

4. nga wairewa chromatographic mo etahi atu whakamahinga (gel permeation chromatography) e whakamahia ana mo te hau taiao whakarakei, whakarewa tangohanga acetylene, stabilizers rama polymeric, me etahi atu. Me te nui o te whakamahinga o te tetrahydrofuran, ina koa te tipu tere o te umanga spandex i Haina i roto i enei tau, te ko te tono PTMEG i Haina e piki haere ana ia ra, a ko te hiahia mo te tetrahydrofuran e whakaatu ana hoki i te tere tipu.

Whakatupato mo te penapena: te tikanga, ka tapirihia nga hua me te aukati polymerization. Rokiroki i roto i te whare putunga hauhautanga me te hau. Kia mawehe atu i te ahi me te puna wera. Ko te paemahana putunga kaua e neke ake i te 30 ℃. Me hiiri te peke kia kaua e pa atu ki te hau. Me penapena kia noho wehe mai i te waikura, waikawa, waikawa, me era atu. Ka aukatia te whakamahi i nga taputapu miihini me nga taputapu ngawari ki te whakaputa ngaahiahi. Ko te waahi penapena me whakauru ki te turuturu taputapu whakaora whawhati tata me nga taonga rokiroki tika.

Tarapēke: 180kg / pahu.

Te āheinga ā-tau: 2000 tana / tau