Rondedzero hombe yemhando dzese dzepurasitiki dzinowedzera tambo dzepurasitiki!

Mapurasitiki ekuwedzera, inozivikanwawo sezvinhu zvinowedzerwa mupurasitiki, zvinhu zvinofanirwa kuwedzerwa kuma polymers (synthetic resins) kuti zvivandudze hunhu hwavo hwekugadzirisa kana kuti kuvandudza mashandiro e resin pachayo.
Kuwedzerwa kwezvinowedzera kunogona kukurudzira kugadziriswa kwepurasitiki kuti zvivandudze mashandiro ekugadzira, hunhu hwemuviri nehwemakemikari hwechinhu chepakutanga uye kuwedzera hunhu hwemuviri nehwemakemikari hwechinhu chepakutanga.

Nhasi tichadzidza nezvekupatsanurwa kwezvinowedzera zvepurasitiki uye kuongorora zvakasiyana-siyana zvezvinowedzera zvepurasitiki.

1. Antioxidant
Mabond maviri asina kuzara mumapurasitiki anorwiswa nemaatomu eokisijeni, kupisa nechiedza uye anokonzera kutyoka kwemasero eropa (free radicals), izvo zvinokonzera ketani inotyora macheni emamorekuru kana kugadzira macheni ekubatanidza, zvichikonzera kushomeka kwesimba kana kuputsika kwechigadzirwa chepurasitiki chapera. Basa rema antioxidants nderekunonotsa kuora kwemapurasitiki nekuda kwe oxidation uye kuwedzera hupenyu hwezvigadzirwa zvepurasitiki.
Ma antioxidants anoshandiswa muindasitiri yepurasitiki anogona kusiyaniswa zvichienderana nebasa rawo seizvi:

(1) Zvinodzivisa oxidation chain reaction
Zvakadai seAlkyl phenol、Butylated hydroxytoluene、Aromaticamines、Phenyl-B-Naphtylamine、Alkyl quinone、Alkylene bisphenol、Alkyl phenolthioether、Phenyl salicylate nezvimwewo.
(2) Mushonga wekuparadza peroxide
Zvakadai seLiu alcohol acute sulfide system 、Thio propionate ester 、 Organic phosphites nezvimwewo.
(3) Zvinhu zvinoderedza simba resimbi ine simba
Zvakadai sema amides, hydrazides, aromatic amine compounds, nezvimwewo.

2, Antistatic mumiririri
Basa guru rezvinhu zvinodzivirira static nderekupa magetsi kupurasitiki kuitira kuti asaunganidze magetsi asingachinji nekuda kwekukweshana. Zvinhu zvinodzivirira static zvinoshandiswa zvinosanganisira quaternary ammoniummunyu, amines, fatty acid esters uye sulfonated wax.

3. Blowingagent
Kune mhando nhatu huru dzezvinhu zvinoshandisa furo mumapurasitiki.
(1) nitrogen, kabhoni dhayokisaidhi, nemhepo, zvinodzvanywa zvakananga mupurasitiki inonyunguduka kuti zviite furo.
(2) mvura inoputika yakaita sebutane, pentane, petroleum ether, difluorodichloromethane, nezvimwewo, mushure mekudziya iyo inowedzera kuputika, uye inoita kuti muviri wepurasitiki uite furo, iyo inowanzo shandiswa nepolystyrene furo iri yerudzi urwu.
(3) kuputsika kwechinhu chinoputira chemakemikari, rudzi urwu rwechinhu chinoputira chinowanzova upfu hwakasimba, hunodziiswa hunoora kuti huburitse gasi (kazhinji nitrogen kana carbon dioxide), uye hugadzire chimiro chakafanana nesero repurasitiki, uye kuderedza huremu.

Rudzi urwu rwemushonga wefuro runonyanya kushandiswa muzvinhu zveazo zve organic, zvakaita se azodicarbonamide, azobisisobutyro-nitrile (AIBN kana tichitsanangura). Mapurasitiki makuru anoshandiswa mukufurisa furo ndeanoti: ABS, PS, PVC, PU, ​​EVA, PE, PP, nezvimwewo.

4, Flameretardant
Kana mapurasitiki ane zvinodzivisa moto akaonekwa pamoto, anodzivirira kupararira kwemoto uye anodzivirira kuumbika kweutsi ega, uye kana moto ukabviswa, kutsva kunomira.

Nheyo dzezvinodzivisa moto zvinoshandiswa mumapurasitiki dzinogona kukamurwa kuita zvikamu zvitatu zvikuru.

(1) Zvinhu zvisingabatike zvinogona kuita basa pamwe chete neokisijeni kuti zvigadzire gasi risina simba, rakaputirwa nechinhu chiri kutsva, zvichideredza huwandu hweokisijeni muchinhu chiri kutsva kuti chinangwa chekutsva chipere. Apo kutsva kunogona kugadzira CO2, CO2, NH3 uye halogen compounds, dzakadai sePVC, PU foam, polyester kana epoxy resin, nezvimwewo zvinosarudzwa nenzira iyi.

(2) Chinhu chinodzivirira moto chisingashande zvakanaka chinhu chine halogen, phosphorus, nitrogen kana boron, kana chatsva, chinogona kuora chinhu chisina kushanda, chakaputirwa nepurasitiki pamusoro, zvichiita kuti pave nezvipingamupinyi zvekuparadzanisa okisijeni yekunze, kuti zvizadzise chinangwa chekudzivirira moto.

(3) ine maokisijeni emvura akadai sealumina incombustible agent inosangana nekutsva, inogona kuburitsa gasi remvura, kutora kupisa kwemaitiro ekutsva, kuitira kuti tembiricha yakatenderedza chinhu chinotsva ideredze kupararira kwekudziviswa kwemurazvo, kudzivirira kuumbwa kweutsi.

5. Mafuta ekuzora
Mafuta anozora anogona kukamurwa kuita mafuta emukati nemafuta ekunze, basa guru remafuta emukati nderekuvandudza kuyerera kweresin mukati, kuderedza kukweshana kwemukati pakati pemaketani emamorekuru eresin, akadai semafuta ane mafuta (stearic acid monoglycerides); mafuta ekunze mukuderedza kunamira kweresin kumichina yekugadzira, uye kuvandudza pamusoro pechigadzirwa chiri nyore kuburitsa, senge HoechstWax.

6, Chigadziriso chemhedzisiro
Zvinogadzirisa impact modifiers zvinowanzo kuve maresins akakosha anowedzerwa nenzira yekubatanidza kuti purasitiki isanyanya kukanganiswa. Zvinogadzirisa impact modifiers zvinowanzo kukanganisa kupisa, kufamba zvakanaka kana kugadzikana kwepurasitiki uye zvinofanirwa kusarudzwa nokungwarira.