Cov txheej txheem:

Koj ua polystyrene hauv tsev li cas?
Koj ua polystyrene hauv tsev li cas?

Video: Koj ua polystyrene hauv tsev li cas?

Video: Koj ua polystyrene hauv tsev li cas?
Video: ՀՐԱՏԱՊ ԼՈՒՐ․․․ Պուտինը ստորագրեց․․․ ի՞նչ է սպասվում վաղվանից․․․ 2024, Kaum ib hlis
Anonim

Yam Koj Yuav Tsum Tau

  1. 2tsp ua. borax.
  2. 1/2 khob dej.
  3. 1/4 khob Elmer's kua nplaum.
  4. 1/4 khob dej.
  5. Air-tight hnab yas, nkas loos loj.
  6. 2/3 khob micro-beads (1mm inch)
  7. 1 khob 1/8-inch taum hnab ntim cov hlaws dai.

Ntawm no, koj yuav ua li cas polystyrene?

Polystyrene yog tsim nyob rau hauv ib tug txheej txheem hu ua suspension polymerization. Tom qab styrene yog tsim tawm los ntawm kev sib txuas ntawm ethylene thiab benzene, nws yog merged nrog dej thiab ib tug mucilaginous tshuaj los tsim cov tee dej. polystyrene.

Ib yam li ntawd, polystyrene yog dab tsi? liˈsta?riːn/ yog ib qho hluavtaws hluavtaws hydrocarbon polymer ua los ntawm monomer styrene. Polystyrene tuaj yeem ua tau zoo lossis foamed. Lub hom phiaj polystyrene yog ntshiab, nyuaj, thiab nkig. Nws yog ib qho pheej yig resin rau ib chav tsev qhov hnyav.

Ua kom pom qhov no, cov khob polystyrene ua li cas?

Thaum twg Styrofoam yog tsim , yas me me heev polystyrene pellets yog thawj ua . Cov yas pellets no tau muab tso rau hauv cov txheej txheem cua sov, uas ua rau lawv nthuav 40 mus rau 50 npaug ntawm lawv qhov loj me. Tom qab ntawd cov pellets nthuav dav yog molded thiab txiav rau hauv lub Styrofoam cov khoom peb siv txhua hnub.

Dab tsi koj tuaj yeem txau rau ntawm Styrofoam kom nws nyuaj?

Hard Txheej ntawm Styrofoam

  • Tshaj tawm koj daim ntaub tso rau hauv qhov chaw ua haujlwm huv, zoo-ventilated. Muab ib nkawm hnab looj tes tiv thaiv.
  • Sib tov cov kua polyurethane ua ke.
  • Thawb koj cov xim txhuam hniav nrog polyurethane.
  • Txhuam nruab nrab ntawm ob thiab plaub lub tsho tiv no ntawm cov kua polyurethane rau ntawm Styrofoam nto.

Pom zoo: