Caoutchouc ya propylène éthylène (EPR), y compris caoutchouc binaire éthylène propylène et caoutchouc éthylène ternaire (EPDM) deux catégories, ezali caoutchouc saturé, na isolation électrique excellente, humidité, chaleur, résistance à l’âge, ezali kosalelama mingi na préparation ya ba fils na ba câbles, mpe ezalaki na ba câbles complètes as styrene. With the increasingly high requirements of the laying environment, wire and cable are being developed towards low-smoke halogen-free flame retardant, with the same low-pressure grades of cross-linked polyethylene, EPR also belongs to the flammable materials, its own molecular composition and structure of the flame retardant performance has little effect, only with a considerable amount of flame retardant in order to achieve the purpose of flame retardant, so in order to make low-smoke Biloko oyo ekoki kopekisa mɔ́tɔ oyo ezali na halogène te ekoki kobakisa bobele na kelasi oyo ezangi halogène oyo ezali kopekisa mɔ́tɔ. Studies have shown that the electrical properties of EPDM is greatly affected by the flame retardant, just add 80 parts of hydroxide flame retardant will make the rapid decline in electrical resistivity, in order to achieve the IEC 60502 ((rated voltage of 1 ~ 30 kV extruded insulated cables and their accessories) standards in the EPR insulating rubber in the normal operation of the conductor at the highest temperature of the insulation resistance /> 3.67 MΩ -km mpe résistance ya volume ≥ 3.67 MΩ -km mpe résistance ya volume ≥ 3.67 MΩ -km mpe résistance ya volume ≥ 3.67 MΩ -km mpe résistance ya volume ≥ 1 × 1012 na kati ya ba cm ya ba cm ya ba oyo bazali na yango. Momekano ya kozikisa, ezali na degré ya mpasi mingi. Na technologie ya modification ya surface ya ba retardants inorganiques ya flamme lokola hydroxyde d’aluminium na hydroxyde de magnésium mpe recherche mpe développement ya ba méthodes ya sika ya production, ezali possible ya ko répondre na ba exigences oyo ezali likolo.
1 Effet ya ba types ya retardant ya flamme inorganique na performance ya matériel ya caoutchouc isolant ya EPDM isolant ya retard ya flamme halogène oyo eza na milinga te .
Force de traction ya matériel adhésif isolant EPDM na hydroxyde de magnésium ezali monene, mingi mingi mpo na likambo oyo ete .
Hydroxyde de magnésium ezali cristalline oyo ezali lokola aiguilles, taille ya particule na se ya 2μm, mpe na nzela ya modification ya agent ya couplage silane mpo na ko améliorer force de liaison mpe compatibilité ya hydroxyde de magnésium mpe EPDM. By comparing the oxygen index and vertical combustion grade, it can be seen that the flame retardant effect of magnesium hydroxide is significantly better than that of aluminum hydroxide, this is due to the thermal decomposition temperature of magnesium hydroxide is higher than that of aluminum hydroxide by 140 ℃, which avoids dehydration reaction occurring in advance due to the high temperature of the processing process, moreover magnesium hydroxide will form a layer of oxidized film adsorbé na surface ya matériel adhésif sima ya déshydratation mpe ko promouvoir formation ya makala, oyo ekosala couche ya coquille ya makasi na surface ya matériel adhésif en plus, sima ya déshydratation, hydroxyde de magnésium ekosala couche ya film oxydé adsorbed na surface ya matériel ya caoutchouc, mpe eko promoter formation ya carbonique, na ndenge ya ko améliorer surface ya oxygène, na ndenge ya ko améliorer oxygène, na ndenge ya ko améliorer surface ya oxygène. Comparison of volume resistivity can be concluded, aluminum hydroxide on the EPDM insulation rubber Ethylene propylene rubber (EPR), including binary ethylene propylene rubber and ternary ethylene propylene rubber (EPDM) two categories, is a saturated rubber, with excellent electrical insulation, moisture, heat, cold and aging resistance, is widely used in the preparation of wires and cables, and has been a comprehensive alternative to the main body of Caoutchouc styrène-butadiène lokola matériel ya isolation ya câble. With the increasingly high requirements of the laying environment, wire and cable are being developed towards low-smoke halogen-free flame retardant, with the same low-pressure grades of cross-linked polyethylene, EPR also belongs to the flammable materials, its own molecular composition and structure of the flame retardant performance has little effect, only with a considerable amount of flame retardant in order to achieve the purpose of flame retardant, so in order to make low-smoke Biloko oyo ekoki kopekisa mɔ́tɔ oyo ezali na halogène te ekoki kobakisa bobele na kelasi oyo ezangi halogène oyo ezali kopekisa mɔ́tɔ. Studies have shown that the electrical properties of EPDM is greatly affected by the flame retardant, just add 80 parts of hydroxide flame retardant will make the rapid decline in electrical resistivity, in order to achieve the IEC 60502 ((rated voltage of 1 ~ 30 kV extruded insulated cables and their accessories) standards in the EPR insulating rubber in the normal operation of the conductor at the highest temperature of the insulation resistance /> 3.67 MΩ -km mpe résistance ya volume ≥ 3.67 MΩ -km mpe résistance ya volume ≥ 3.67 MΩ -km mpe résistance ya volume ≥ 3.67 MΩ -km mpe résistance ya volume ≥ 1 × 1012 na kati ya ba cm ya ba cm ya ba oyo bazali na yango. Momekano ya kozikisa, ezali na degré ya mpasi mingi. Na technologie ya modification ya surface ya ba retardants inorganiques ya flamme lokola hydroxyde d’aluminium na hydroxyde de magnésium mpe recherche mpe développement ya ba méthodes ya sika ya production, ezali possible ya ko répondre na ba exigences oyo ezali likolo.
1. Influence ya type retardant ya flamme inorganique na performance ya ba faible milinga halogène-retardant flamme retardant EPDM Isolation Matériel ya caoutchouc
Bokasi ya traction ya matériel adhésif isolant EPDM na hydroxyde de magnésium ezali monene, mingi mingi mpo na likambo oyo ete hydroxyde ya magnésium ezali cristalline oyo ezali lokola aiguilles, bonene ya particule oyo ezali na se ya 2μM, mpe na nzela ya modification ya agent ya couplage silane mpo na kotombola makasi ya bokangami mpe compatibilité ya hydroxyde de magnésium mpe EPDM. By comparing the oxygen index and vertical combustion grade, it can be seen that the flame retardant effect of magnesium hydroxide is significantly better than that of aluminum hydroxide, this is due to the thermal decomposition temperature of magnesium hydroxide is higher than that of aluminum hydroxide by 140 ℃, which avoids dehydration reaction occurring in advance due to the high temperature of the processing process, moreover magnesium hydroxide will form a layer of oxidized film adsorbé na surface ya matériel adhésif sima ya déshydratation mpe ko promouvoir formation ya makala, oyo ekosala couche ya coquille ya makasi na surface ya matériel adhésif en plus, sima ya déshydratation, hydroxyde de magnésium ekosala couche ya film oxydé adsorbed na surface ya matériel ya caoutchouc, mpe eko promoter formation ya carbonique, na ndenge ya ko améliorer surface ya oxygène, na ndenge ya ko améliorer oxygène, na ndenge ya ko améliorer surface ya oxygène. Comparaison ya résistance ya volume ekoki ko conclure, hydroxyde d’aluminium na isolation ya EPDM Matériel ya caoutchouc Isolation électrique ya impact ezali moke mingi koleka hydroxyde ya magnésium, yango ezali mpo conductivité ya Ath 104E ezali koleka 60 ps-cm ~ te; mpe hydroxyde ya magnésium ordinaire, lokola ba variétés ya méthode ya production ya minerais, en raison ya source interne ya influence ya mine, teneur ya impureté makasi, pureté ya moke, en plus ya surface na yango na charge positive, polarité ya likolo, stress interne microscopique, mpo conductivité ezala jusqu’à 250 ps-cm. 1 to koleka, motango monene ya hydroxyde ya magnésium oyo ebakisami na matériel ya caoutchouc EPDM ekosala ete ba propriétés isolantes ya matériel ya caoutchouc ekita mingi, atako hydroxyde ya magnésium sima ya traitement spécial ya modification ya surface ekoki kobongisa ba propriétés isolantes ya matériel ya caoutchouc, kasi ba résultats oyo ezali naino malamu te. Soki totali motango moko ya hydroxyde ya magnésium ezali na ba propriétés ya malamu koleka ya retard ya flamme koleka hydroxyde d’aluminium, ba fabricants ya hydroxyde ya biso mpe ya magnésium na boyokani ba optimisaka ba indicateurs physiques ya hydroxyde de magnésium, ba variétés ya ba modificateurs ya surface mpe ba méthodes ya production, etc., mpe kobimisa ba sortes mibale ya hydroxyde de magnésium oyo ebongi mpo na production ya EPDM00050505 mpe material mHAhsifs mm30 - mH MMHIVE MMHIVE MM30 50 50/MHAH MMHIVE MMHIVE ANTHISives.
MH3005 mpe MH3005Z EPDM EPDM Isolant Resistivité ezali na volume ya likolo, oyo noyau isolant oyo esalemi na caoutchouc MH3005Z ekokisaka mingimingi masengi ya CEI 60502, kasi ba propriétés isolantes ya caoutchouc MH3005 ezali relativement eleki. Kasi, performance ya isolation ya noyau oyo esalemi na caoutchouc MH3005 ezali relativement moke, mpe ekanisami ete structure ya surface ya noyau ebebaki na tango ya processus ya vulcanisation ya extrusion, mpe esengeli ko explorer lisusu ntina.
Overall, compared with the EPDM insulation rubber with modified magnesium hydroxide alone and EPDM insulation rubber with aluminum hydroxide alone, the former has good flame retardant property, high tensile strength, and better insulating property after special surface modification, but there is still a risk of degradation of insulating property in the insulating wire core, while the insulating property of aluminum hydroxide is better, and its resistivity can meet the requirements even without modification.
2. Effet ya ba retardants inorganiques ya flamme na performance ya ba adhésifs isolant EPDM ya retard ya milinga ya milinga te, sans halogène
Utilisation unique ya hydroxyde de magnésium to hydroxyde d’aluminium Retardant inorganique ekoki te ko répondre mbala moko na ba besoins ya ba propriétés électriques mpe na ba propriétés ya retardant ya flamme, donc hydroxyde d'aluminium mpe hydroxyde d Augmentation ya dosage ya MH3005Z, viscosité ya menni mpe force de traction ya adhésif isolant ya EPDM emati, ba propriétés ya retard ya flamme emati, résistance ya volume ekiti. Na bomati ya MH3005Z, viscosité ya menni mpe makasi ya traction ya adhésif isolant ya EPDM emati, propriété ya retard ya flamme emati, mpe résistance ya volume ekiti. Tango rapport ya ATH 104E/MH3005Z ezali 90/30, ba propriétés isolantes mpe ya retard ya flamme ya adhésif isolant EPDM ekokisaka ba exigences. Kokokanisa ATH 104E / MH3005Z mpe ratio ya 110 / 10 mpe 120 / Lo makambo mibale, atako bomati ya biteni 10 ya ATH 104E sima ya ba propriétés ya retard ya adhésif ya flamme ya ePDM ebongwani, kasi ba propriétés physiques ya bokiti ya noki. LATH 104E / MH3005Z mpe ratio ya 70 / 50 mpe 70 / 40 ba cas mibale, kokitisa 10 parties ya MH3005Z atako ekoki kobongisa ba propriétés ya isolation ya caoutchouc, kasi ba propriétés retardantes ya flamme ekokisaka ba exigences te. Pona ko assurer ba propriétés ya retardant ya flamme, quantité totale ya retard ya flamme ekoki ko réduire te.
EPDM Isolation Matériel ya caoutchouc Densité ya milinga sans flamme ezali 355 to pe koleka, na quantité ya retard ya flamme inorganique mpe na relation ya polele te na rapport, yango ezali mpo na formule ya ba composants nionso, formation ya milinga ezali mingi mingi EPDM, atako retardant ya flamme inorganique ekoki ko améliorer ba propriétés ya retard ya flamme, mpe pe ekoki ko réduire milinga te.
3. Agent ya réduction ya milinga na performance ya composé isolant ya EPDM oyo ezali na fulu oyo ezali na milinga te oyo ezali na milinga te .
JB / T 10707 - 2007 'Thermoplastique Halogène-lis-milinga ya moke ya ba câbles ya retard ya ba câbles' esengi ete densité ya milinga ya caoutchouc oyo ezangi moto esengeli te koleka 250, mpo na kokitisa densité ya milinga ya matériel ya caoutchouc esengeli kobakisa na suppresseur ya milinga. Montmorillonite ezali na Montmorillonite oyo esalemi na calcium, oyo ezali na sodium, oyo ezali na magnésium, sima ya kolongolama mpe kopalangana, kopɛtola mpe kobongisa, composite organique spécial, moyenne ya épaisseur ya couche ezali na nse ya 25 nm. Montmorillonite eponami mpo na kozwa effet ya milinga ya malamu koleka.
Montmorillonite sur l’isolation EPDM Matériel de caoutchouc densité ya milinga ya impact ezali très évident, kasi ekoki mpe kozala mwa bomati ya ba propriétés ya retardant ya flamme, alors que ba propriétés mosusu ezali na impact moke; Na bomati ya motango ya Montmorillonite, EPDM Isolation Matériel ya caoutchouc Densité ya milinga ekiti mokemoke, mpe ezala na momesano ya kozala stabilisé, na kotalaka ba facteurs ya coût, pona motango ya Montmorillonite mpo na biteni 5.
4 Bosukisi .
(1) Na adhésif isolant ya EPDM oyo ezali na retarde ya flamme ya milinga te oyo ezangi halogène, effet retardant ya flamme ya hydroxyde de magnésium modifié na dose moko ezali malamu koleka oyo ya hydroxyde d’aluminium, kasi hydroxyde ya magnésium ezali na impact monene na ba propriétés ya isolation électrique.
(2) Hydroxyde d’aluminium mpe hydroxyde de magnésium mpe na rapport ya 90 / 30, basse milinga mpe halogène-free flamme retardant EPDM isolation matériel adhésif ezali na ba propriétés ya malamu ya retardant flamme mpe ba propriétés ya isolation.
(3) Kosalela Montmorillonite ekoki mpenza kokitisa densité ya milinga ya adhésif d’isolation EPDM ya EPDM oyo ezali na milinga te oyo ezali na milinga mingi te, kasi na bomati ya dose na yango, densité ya milinga ya adhésif ekiti malembe malembe, mpe dose ya malamu koleka ya Montmorillonite ezali biteni 5.
