Qhov zoo ntawm MCA:
- Tsawg toxicity thiab tsawg corrosion.
LD50 ntawm melamine cyanurate yog ntau dua 4000 mg / kg. Piv nrog rau X-Sb nplaim taws retardant system, qhov xeb ntawm MCA qis dua. Piv txwv li, PA66 muaj MCA, nyob rau hauv lub xeev molten (300 ° C) thiab stainless hlau sib cuag tom qab 100 teev, lub kaw lus MCA ntawm qhov xeb ntawm stainless hlau pwm, tsuas yog 1/50 ntawm X-Sb system.
- Cov pa luam yeeb tsim muaj tsawg.
MCA tso tawm CO2, N2 thiab NH3 thaum thermally decomposed, thiab tsis muaj HX yog generated, yog li cov pa luam yeeb thiab tshuaj lom thiab corrosive khoom tsim thaum lub sij hawm thermal tawg thiab combustion yog tsawg heev. Piv txwv li, qhov siab tshaj plaws pa luam yeeb ntom ntom (Dm) ntawm unreinforced PA6 (UL94 V-0), uas yog nplaim-retardant nrog MCA, yog 190 thiab 80 raws li thaum ntsuas los ntawm NITS (NBS) lub thawv pa taws. Rau PA6 (UL94 V-0), uas yog nplaim retardant nrog X-Sb system, ob qhov tseem ceeb no yog siab li 790 thiab 390 feem, piv txwv li qhov qub yog li 1/4 ntawm qhov kawg.
(3) High thermal stability MCA tuaj yeem tiv taus qhov kub siab tshaj 320 ° C. Yog li ntawd, nws tuaj yeem tiv taus qhov kub thiab txias ntawm cov khoom siv dav dav.
Kev siv melamine cyanurate
- Tig nplaim qab
MCA muaj ntau tus naj npawb ntawm nitrogen atoms nyob rau hauv cov molecule thiab yog tshwj xeeb tshaj yog haum rau siv raws li ib tug nplaim retardant. Piv txwv ntawm daim ntawv thov yog raws li nram no.
(1) MCA yog siv los ua cov nplaim hluav taws kub hnyiab los npaj PA-6 nplaim retardant composites. MCA yog dav siv nyob rau hauv unreinforced PA, thiab raws li kev txheeb cais, ze li ntawm 40% ntawm cov unreinforced nplaim retardant PA siv nyob rau hauv hluav taws xob thiab hluav taws xob plastics nyob rau hauv Western Europe yog MCA nplaim retardant khoom nyob rau hauv 2003.
Inorganic nplaim retardant magnesium hydroxide (MH) thiab nitrogen-based nplaim retardant melamine cyanurate feem ntau siv halogen-dawb nplaim retardants rau PA6 tam sim no. Cov kev tshawb fawb tau pom tias MCA thiab MH tau siv los ua cov nplaim hluav taws kub hnyiab los npaj PA6 nplaim retardant composites feem. Thaum qhov ntau npaum ntawm MCA thiab MH yog 20 qhov chaw, qhov kawg oxygen Performance index ntawm PA6 / MCA composite tuaj yeem ncav cuag 30.5, thaum qhov kawg oxygen Performance index ntawm PA6 / MH composite tsuas yog 23.5, qhia tias cov nplaim hluav taws xob ua haujlwm ntawm MCA tau siab dua.
Lub caij no, lub zog tensile ntawm cov compound PA6 / MCA yog 66.8 MPa, 1.14 npaug ntawm cov khoom sib xyaw PA6 / MH. Lub melt flow rate ntawm PA6 / MCA composite mus txog 74 g / 10 min, 4. 9 npaug ntawm PA6 / MH composite.
(2) MCA ua cov nplaim hluav taws kub nyhiab rau epoxy resins. MCA raws li cov nplaim hluav taws kub hnyiab tuaj yeem ua kom cov pa ntsuas pa ntawm epoxy resin los ntawm 24-28 txog 46-48. Kev tshawb fawb qhia tau hais tias MCA muaj cov nplaim hluav taws zoo heev ntawm epoxy resin anhydride curing compound (EP), thaum cov tshuaj tsuas yog 5 feem tuaj yeem ua rau EP mus txog qib ntawm kev tua tus kheej.
MCA txo cov thermal pib decomposition kub thiab siab tshaj thermal poob tus nqi ntawm EP, thiab txhim kho cov thermal stability ntawm EP ntawm qhov kub thiab txias.
(3) MCA tuaj yeem muab ntxiv rau cov yas acetate emulsions, acrylate emulsions thiab roj hmab emulsions los ua cov nplaim hluav taws. Kev tshawb fawb qhia tau hais tias txheej zaj duab xis adhesion thiab smoothness yog zoo heev, thiab tsis muaj xim muaj kuab paug.
(4) Nplaim retardant PBT. 100 qhov chaw ntawm PBT, 5 qhov chaw ntawm fluorinated hluavtaws mica, 5 qhov chaw ntawm MCA, nplaim retardant kev ua tau zoo mus txog UL94V-0 qib. MCA nplaim retardant daim ntawv thov ntau kuj dav, yuav siv tau nyob rau hauv polyamide 6 (66), PET (polyethylene terephthalate), TPE (thermoplastic elastomer cable), PU (polyurethane), POM (polyformaldehyde), PET (polyethylene terephthalate), fluoroetra PTthylene (phenolic resin), resin, acrylic emulsion, PPO / PS thiab lwm yam ntaub ntawv.
- Lubricant additives
MCA tuaj yeem tsim tau raws li cov dej-raws li roj nplua nyeem thiab ua ib qho ntxiv rau cov khoom siv roj nplua nyeem thiab cov roj lubricating, nrog cov txiaj ntsig zoo-txuag roj. Nws tuaj yeem siv dav hauv ntau yam tshuab lubrication nyob rau hauv qhov kub thiab txias, tsis tshua muaj kub thiab kub siab, thiab muaj kev hnav zoo heev. Raws li cov roj nplua nyeem, MCA muaj ntau yam khoom zoo ib yam li cov khoom siv roj nplua nyeem molybdenum disulphide, tab sis ntawm tus nqi qis dua li molybdenum disulphide, ua rau nws zoo tagnrho hloov. Cov khoom yog xim dawb, tsis muaj tshuaj lom, tsis muaj ntxhiab thiab yooj yim los ntxuav, yog li nws muaj qhov zoo ntawm kev tiv thaiv kev ua qias tuaj thiab xim hauv lub lubrication ntawm video, tshuaj hauv tsev, xaws thiab ntim tshuab.
- Lwm yam siv
(1) Cov tshuaj fiber matting tus neeg sawv cev rau coatings.
MCA thiab resin adhesion yog qhov zoo, tsis yooj yim rau poob, tab sis kuj tsis yooj yim rau kev ua qias tuaj, nws yog siv los ua cov tshuaj fiber ntau matting tus neeg sawv cev zoo dua Chinbai thiab silica gel zoo dua.
- Plating qib yas additives.
MCA raws li ib tug additive infiltrated rau hauv nylon yas, yuav txhim khu lub adhesion thaum plating. Yav dhau los, lub zog adhesion ntawm cov yas thiab hlau txheej tsis tau raws li qhov yuav tsum tau ua thiab tau txwv rau plating ABS, thaum nylon yas tsis yooj yim rau plating. Niaj hnub no, qhov sib ntxiv ntawm MCA rau nylon muab kev sib txuas zoo tom qab plating. Cov yas plated no tuaj yeem siv dav hauv cov khoom siv hluav taws xob tiv thaiv, ua npuas ncauj, lub qhov rooj rub, thiab lwm yam.
- Polymer qhob additives.
Ntxiv MCA tuaj yeem txhim kho lub zog ntawm pob zeb thiab txuas ntxiv lub neej kev pabcuam ntawm pob zeb.
- Raw khoom rau cov tshuaj pleev ib ce ntawm daim tawv nqaij.
Raws li MCA muaj lub luag haujlwm tsis cuam tshuam rau kev ua haujlwm ntawm lub cev thiab kev tiv thaiv ntawm daim tawv nqaij, nws tuaj yeem siv los ua shaving ntsuab, tshuaj pleev thaiv hnub hmoov, thiab lwm yam. Cov tshuaj pleev ib ce siv rau ntawm daim tawv nqaij, feem ntau vim yog hws, kua muag, sebum thiab lwm yam tib neeg secretions, nrog rau cov nag, daus, dej hiav txwv thiab lwm yam dej los ntawm lub luag hauj lwm ntawm denaturation, detachment cov nyhuv ntawm daim tawv nqaij zoo heev. MCA, ntawm qhov tod tes, adheres zoo thiab muaj qhov ntom ntom ntom ntom rau ntawm daim tawv nqaij, yog li nws yog ib qho khoom zoo nkauj zoo nkauj. Thaum ntxiv, nws tuaj yeem txhim kho qhov adhesion ntawm daim tawv nqaij, ua rau daim tawv nqaij zoo, ntom thiab du.
Yog xav paub ntxiv lossis xav tau cov qauv dawb lossis cov nqe lus hais txog tus nqi, thov hu rau peb ntawm email: [email protected] , lossis hu rau peb ntawm: +86-28-8411-1861.
Qee cov duab thiab cov ntawv luam tawm los ntawm Is Taws Nem, thiab cov ntawv pov thawj yog los ntawm tus sau thawj. Yog tias muaj kev ua txhaum cai, thov hu rau peb kom tshem tawm.