Tichakutsanangurira nezve-tembiricha yekuchembera yesilicone foam zvinhu kubva pamusimboti wekuchembera{1}}pamusoro uye kuti zvinhu zvishanu zvinokanganisa sei kuchembera.
一, Maviri Core Kuchembera Mechanism eSilicone Sponge
Kuchembera kwesilicone foam board pasi pemamiriro ekupisa kunokonzeresa kubva kune zvakasanganiswa mhedzisiro yenzira mbiri dzakafanana dzakaratidzwa mumufananidzo uri pamusoro.
Kemikari nzira (thermal-oxygen kuchembera): Tembiricha yakanyanya uye oxygen zvinorwisa musana we siloxane (-Si-O-) uye methyl side chain (-CH₃), zvichiita kuti mamolecular chain breakage (depolymerization) kana kuwedzera crosslinking. Ichi ndicho chikonzero chemakemikari chinokonzera brittleness kana kuoma kwezvinhu.
Nzira yemuviri (kupisa kushushikana kutadza): Iyo porous chimiro chefuro chakagara chisina simba. Izvo zvisingaenderane nemafuta ekuwedzera coefficients ezvikamu zvaro zvinogadzira kushushikana kwenzvimbo panguva yekupisa bhasikoro, izvo zvinopararira kubva kune zvakanyanya kutambudzika pores kutanga microcracks uye pakupedzisira kukonzera kuparara kwechimiro.
2.Mu-kuongorora kwakadzama kwezvimwe zvinofurira
1. Polymer molecular chimiro (inogadzirisa chinhu)
Mhando yerabha yakasvibirira uye vinyl yemukati: Vinyl ndiyo yakakosha poindi yekuyambuka maitiro. Izvo zviri mukati mevinyl zvinotarisa zvakananga kuwanda uye kugadzikana kweiyo network chimiro mushure mevulcanization. Rabha mbishi ine vinyl content inowanzo shandiswa pahigh{2}}temperature silicone foam board.
Low volatile content (yakakosha): Sezvakambokurukurwa, zvakasara D4/D5 macyclides uye mwando zvinoita se "chembere catalysts". Izvi zvikamu zvinowanzo kuunganidza mumasero efoam, zvichikurumidza kukurumidza kusvibiswa kwekuregererwa kweketani huru pakupisa kwakakwirira. Kudzora iri ndiro basa rekutanga kuona hupenyu hurefu kubva kunobva.
2. Kusimbisa sisitimu (skeleton support)
Mhando yekuzadza uye kupararira: Iyo gasi chikamu silica ndiyo huru inosimbisa yekuzadza. Yayo chaiyo nzvimbo, maitiro ekurapa kwepamusoro uye kupararira kufanana musilica gel zvakanangana nekusimbisa maitiro. Kusaenzana kupararira kunoumba pfungwa dzekusimbisa pfungwa uye kuve nzvimbo yekutanga yekuchembera uye kutsemuka.
3. Zvinowedzerwa uye Zvirongwa (Kugadzikana uye Dziviriro)
-zvekuwedzera zvinodzivirira kupisa: Kuwedzerwa kwekupisa-zvinowedzerwa zvisingaite se iron oxide (iron red) uye cerium oxide zvinokwanisa kubata ma free radicals uye kutadzisa kuchembera kweokisijeni, inova kiyi yekuvandudza kusimba kwekushisa kwenguva refu{2}.
Sulfurization system: mhando uye dosi yeperoxide vulcanizing agent inozokanganisa rudzi uye density ye crosslinking bond. Manetiweki akatsiga uye akanyanya kusimba ane simba rekudzivirira-kuchembera zviri nani.
4. Maitiro ekugadzira (Structural Implementation)
Kufanana kwekupupa: Saizi uye kugoverwa kwemabhuru kwakakosha. Chimiro chebubble chisina kuenzana chinokonzeresa kusagadzikana kwekugovera kana kupisa, uye mabhuru mahombe kana nzvimbo dzisina simba dzinotanga kuparadzwa.
Sulfur yemukati: Sarufa isina kukwana inogona kukonzera isina kukwana network chimiro, kuderedzwa kwesimba remagetsi, uye kukurumidza kuchembera. Sarufa yakawandisa inogona kukonzera-kuomeswa kwetiweki, kuderera kwesimba, uye kuwedzera brittleness.
Post-kugadziridza: Kukwana{1}}nhanho mbiri (kubheka) kwakakosha kuti ubvise zvachose kusarira kwemamorekuru uye mamorekuru madiki, izvo zvinodiwa pakudzikamisa kushanda kwechigadzirwa uye kunatsiridza kusapisa.
5. External application environment (yekupedzisira bvunzo)
Kushanda tembiricha uye nguva: Mwero wekuchembera unowedzera zvakapetwa kaviri kune yega yega 10-15 madhigirii kuwedzera kwekushisa. Kushanda kwenguva refu pachiyero chetembiricha yakatarwa kuchapfupisa zvakanyanya hupenyu.
Tembiricha yebhasikoro: Kupisa kwekuneta kunokonzerwa nekuchinjana kazhinji kwekupisa uye kutonhora kunoparadza zvakanyanya kune porous chimiro pane inogara inogara tembiricha nharaunda.
Yepakati svikiro: Kusangana nemafuta, asidhi, alkali kana kuenderera kuratidzwa kune ultraviolet mwenje uye ozone ichave ne synergistic mhedzisiro nekupisa uye kukurumidza kuchembera.
Sanpu Silicone yakagadzira{0}}yakakura inodzivirira kupisa silikoni chigadzirwa,tinya kuti uzive zvakawanda.