Weatherability: Kiyi yeDurable Dziviriro Mafirimu

Mune akawanda maitiro ekuita maitiro ekudzivirira firimu (viscosity, ukobvu, ruvara, elasticity, transmittance, etc.) Chimwe chazvo kugona kwemamiriro ekunze, izvo zvinoreva kuti firimu remamiriro ekunze riri pamamiriro ekunze kupikisa; nei iri firimu rinodzivirira kusimbisa chimiro ichi? Kupfeka kwemufirimu kunokanganisa zvakanyanya kunaka kwefirimu inodzivirira.

　　Dziviriro firimu mukushandiswa kwemaitiro ekudzivirira kwechigadzirwa chakapedzwa chinodiwawo kuti chive chakananga kuzuva, icho chinoda mwedzi mitanhatu kusvika kune 1 gore kana zvakadaro mukugadzirisa kazhinji hazviitike munyaya yekukuvara kwefirimu inodzivirira, asi. pachava nekuchinja kwekuita. Inogonawo kuvharirwa mumudziyo mhiri kwegungwa kwemwedzi mishoma. Mamiriro ezvinhu anotarisana nefirimu rekudzivirira ane hutsinye.

Iyo inodzivirira firimu ine yakanakisa michina mabasa uye yakanyatso kuenderana nezvinodiwa nemushandisi zvekusimba kuomarara, modulus ye elasticity, elongation, etc. Iyo inodzivirira firimu inopa simbe kutaridzika kune yakachengetwa zvinhu uye ine yakanakisa adhesive basa; mukugadzirisa zvinhu uye kushandiswa, iyo inodzivirira firimu haizoputi kana kudonha.

Iyo firimu inodzivirira ine yakanakisa yemamiriro ekunze kusagadzikana uye adhesion kugadzikana; kupfuura mazuva mashomanana kana nguva yakareba yekunamatira nechisimba chekusvuura haizove nekuwedzera kwakakosha, nyore kudonha, uye yakafukidzwa apo chitarisiko chakadzivirirwa hachizosiyi zvisizvo zvakasara, hazvizosiyi mumvuri. (Kune rimwe divi, irwo rudzi rwekudzivirira)

Firimu rekudzivirira rakashandiswa kwenguva yakati rebei mushure mekunge nzvimbo yaro yabuda, asi mativi maviri ekurereka kwaipesana. Chikonzero chikuru chechiitiko ichi ndechekuti iyo inodzivirira firimu pamaprofiles anoshandiswa mukutumira kushushikana kwakanyanya uye gare gare yakasangana munzvimbo dzepamusoro-tembiricha ichave isingakoshi shrinkage chiitiko.

Iyo inodzivirira firimu yedambudziko iri inoitika zvakanyanya mumwaka unopisa uye wekunaya, saka iyo inodzivirira firimu mukugadzirwa kwekugadzira inofanirwa kutarisisa kusiyanisa kwekushisa kwezvakatipoteredza pane kukanganisa kwekushandiswa kwechigadzirwa. Kuti udzivise maitiro ekudhirowa, pane kutaridzika kusingakoshi kwekutambanudza.