Ethylene Propylene Rubber (EPR), binary ethylene propylene rubber leh ternary ethylene propylene rubber (EPDM) chi hnih chu saturated rubber a ni a, electrical insulation tha tak a nei a, tui, lum leh khaw vawt leh tar theihna hi wire leh cable siamnaah pawh hman a ni nasa hle a, styrene-a rubber-a hman tur, styrene-a siam mai mai, a taksa a tha lo hle bawk. Laying environment-in a mamawh a sang chho zel a, wire leh cable chu meikhu hniam halogen-free flame retardant lam hawiin siam a ni a, cross-linked polyethylene-a low-pressure grade inang chiah chiah a awm a, EPR pawh hi kang thei thilte zinga mi a ni a, a mah ngeiin molecular composition leh structure of the flame retardant performance chuan nghawng a nei tlem hle a, hei hian meialh a siam a, chu chu a tum ber a ni a, chutiang chuan meialh a siam a, chu chu a tum ber a ni a, a tum ber chu a ni. Meikhu hniam halogen tel lo meialh awm lohna hmanrua chu halogen tel lo class-ah chauh a dah theih a, chu chu meialh alh thei lo class-ah chauh a ni. Zirna hrang hrangah chuan EPDM-in electrical property a neih chu meialh dotu hian nasa takin a nghawng a, hydroxide flame retardant-a hmun 80 vel dah belh chauh chuan electrical resistivity tlahniam chak tak a siam ang a, chu chu IEC 60502 ((rated voltage of 1 ~ 30 kV extruded insulated cables and their accessories and their accessories) a nih theih nan a ni ang a, chu chu ePR-a a awm lai khan a ni. 3.67 MΩ -KM leh Volume Resistivity ≥ 3.67 MΩ -km leh volume resistivity ≥ 3.67 Ml leh volume resistivity ≥ 3.67 MAL leh volume resistivity ≥ 1 × Combustion test, harsatna sang tak a awm a, hei hian kum tam tak chhung chu meikhu chhuak thei lo meikhu chhuak thei lo epr insulating rubber a siam chhuak a, chutih laiin subway leh high-rise building te chuan cable insulation leh sheath te chu kangmei venna tur a mamawh a ni. Aluminum hydroxide leh magnesium hydroxide ang chi inorganic flame retardants surface modification technology leh thil siam chhuah dan thar zirchianna leh siam chhuah a nih avangin a chunga thil mamawh te hi a phuhruk theih a ni.
1 Inorganic flame retardant chi hrang hrangte’n low-smoke halogen-free flame retardant EPDM insulating rubber material an thawh dan a nghawng dan
Magnesium hydroxide hmanga EPDM insulating adhesive material tensile strength hi a lian ber a, a chhan ber chu .
Magnesium hydroxide hi needle ang maia crystalline, particle size 2μm aia tlem, leh silane coupling agent siam danglamna hmanga magnesium hydroxide leh EPDM inzawmna tichaktu a ni. Oxygen index leh vertical combustion grade tehkhin chuan, aluminum hydroxide aiin magnesium hydroxide hian flame retardant effect a nei tha zawk tih a hriat theih a, hei hi magnesium hydroxide thermal decomposition temperature vang a ni a, chu chu aluminum hydroxide 140 ruala awm a nih loh chuan a sang zawk a, hei hian a hmaa a lo awm tawhna tur magne-a a siam tur chu magne-in a siam dawn a ni. Layer of oxidized film adsorbed on the surface on the surface of the adhesive material after dehydration and promote the charcoal, chu chuan adhesive material chunglamah hard shell layer a siam ang a, chu bakah, dehydration hnuah, magnesium hydroxide chuan oxidized film adsorbed layer a siam ang a, chu chu rubber material a siam thatna tur, leh a surface of rubber, a surface of rubber, a surface of rubber, a surface of rubber, a surface of rubber, a surface a surface of rubber Retardant system a ni. Volume resistivity tehkhin theih a ni a, EPDM insulation rubber ethylene propylene rubber (EPR)-a aluminum hydroxide (EPR), binary ethylene propylene rubber leh ternary ethylene propylene propylene rubber (EPDM) chi hnih, chu saturated rubber, electrical insulation tha tak nei a ni a, a resistance a awm a, chu chu wire a ni a, wire-ah a awm a, leh wire a ni a, leh wire a ni a, leh wires a ni. Cable insulation material atan styrene-butadiene rubber taksa bulpui ber thlengin. Laying environment-in a mamawh a sang chho zel a, wire leh cable chu meikhu hniam halogen-free flame retardant lam hawiin siam a ni a, cross-linked polyethylene-a low-pressure grade inang chiah chiah a awm a, EPR pawh hi kang thei thilte zinga mi a ni a, a mah ngeiin molecular composition leh structure of the flame retardant performance chuan nghawng a nei tlem hle a, hei hian meialh a siam a, chu chu a tum ber a ni a, chutiang chuan meialh a siam a, chu chu a tum ber a ni a, a tum ber chu a ni. Meikhu hniam halogen tel lo meialh awm lohna hmanrua chu halogen tel lo class-ah chauh a dah theih a, chu chu meialh alh thei lo class-ah chauh a ni. Zirna hrang hrangah chuan EPDM-in electrical property a neih chu meialh dotu hian nasa takin a nghawng a, hydroxide flame retardant-a hmun 80 vel dah belh chauh chuan electrical resistivity tlahniam chak tak a siam ang a, chu chu IEC 60502 ((rated voltage of 1 ~ 30 kV extruded insulated cables and their accessories and their accessories) a nih theih nan a ni ang a, chu chu ePR-a a awm lai khan a ni. 3.67 MΩ -KM leh Volume Resistivity ≥ 3.67 MΩ -km leh volume resistivity ≥ 3.67 Ml leh volume resistivity ≥ 3.67 MAL leh volume resistivity ≥ 1 × Combustion test, harsatna sang tak a awm a, hei hian kum tam tak chhung chu meikhu chhuak thei lo meikhu chhuak thei lo epr insulating rubber a siam chhuak a, chutih laiin subway leh high-rise building te chuan cable insulation leh sheath te chu kangmei venna tur a mamawh a ni. Aluminum hydroxide leh magnesium hydroxide ang chi inorganic flame retardants surface modification technology leh thil siam chhuah dan thar zirchianna leh siam chhuah a nih avangin a chunga thil mamawh te hi a phuhruk theih a ni.
1. Inorganic flame retardant type in a nghawng dan Low smoke halogen-free flame retardant EPDM insulation rubber material
EPDM insulating adhesive material leh magnesium hydroxide te tensile strength hi a lian ber a, a chhan ber chu magnesium hydroxide hi needle ang maia crystalline a nih vang a ni a, particle size chu 2μm aia tlem a ni a, chu chuan magnesium hydroxide leh EPDM te binding force leh compatibility tichak turin silane coupling agent a siam danglam vang a ni. Oxygen index leh vertical combustion grade tehkhin chuan, aluminum hydroxide aiin magnesium hydroxide hian flame retardant effect a nei tha zawk tih a hriat theih a, hei hi magnesium hydroxide thermal decomposition temperature vang a ni a, chu chu aluminum hydroxide 140 ruala awm a nih loh chuan a sang zawk a, hei hian a hmaa a lo awm tawhna tur magne-a a siam tur chu magne-in a siam dawn a ni. Layer of oxidized film adsorbed on the surface on the surface of the adhesive material after dehydration and promote the charcoal, chu chuan adhesive material chunglamah hard shell layer a siam ang a, chu bakah, dehydration hnuah, magnesium hydroxide chuan oxidized film adsorbed layer a siam ang a, chu chu rubber material a siam thatna tur, leh a surface of rubber, a surface of rubber, a surface of rubber, a surface of rubber, a surface of rubber, a surface a surface of rubber Retardant system a ni. Volume resistivity tehkhin theih a ni a, EPDM insulation rubber material-a aluminum hydroxide electrical insulation performance chu magnesium hydroxide aiin a tlem zawk hle a, hei hi ATH 104E conductivity chu 60 ps-cm ~ aia tam a nih loh vang a ni leh ordinary magnesium hydroxide, ore method of production chi hrang hrang, chu chu mine influence ram chhunga source awm vang a ni a, impurity content sang tak, a thianghlimna hniam tak, a surface bakah positive charge, high polarity, microscopic internal stress a awm avangin, chutiang chuan conductivity chu 250 ps-cm thleng a ni. 1 emaw a aia tam emaw, EPDM rubber material-a magnesium hydroxide tam tak dah chuan rubber material-a insulating property chu nasa takin a tlahniam ang a, mahse magnesium hydroxide chu special surface modification treatment hnua magnesium hydroxide chuan rubber material-a insulating property a ti ṭha thei a, mahse a result erawh a la ṭha lo hle. Aluminum hydroxide aiin magnesium hydroxide zat inang chiah hian flame retardant property a nei tha zawk tih ngaihtuah chuan, keini leh magnesium hydroxide siamtute hian magnesium hydroxide physical indicator te, surface modifiers leh production methods chi hrang hrang te, etc. te chu kan siam tha a, EPDM insulating adhesive material siam chhuahna atana tha magnesium hydroxide chi hnih an siam chhuak a - MH305 leh MH300 MH3005Z a ni.
MH3005 leh MH3005Z EPDM insulating rubber hian volume resistivity sang tak an nei a, chung zingah chuan MH3005Z rubber hmanga siam insulating core hian a bul berah chuan IEC 60502 mamawh a tlin a, mahse MH3005 rubber insulating property erawh a sang hle thung. Mahse, MH3005 rubber hmanga siam core-a insulation performance chu a hniam hle a, extrusion vulcanization process chhung hian core surface structure chu a chhe hle niin an chhut a, a chhan pawh zirchian belh a ngai a ni.
A pum puiin, modified magnesium hydroxide chauh hmanga EPDM insulation rubber leh aluminum hydroxide chauh hmanga EPDM insulation rubber nena khaikhin chuan, a hmasa zawk hian meialh tihtlem theihna tha tak, tensile strength sang tak, leh special surface modification hnuah pawh insulation property tha zawk a nei a, mahse insulating wire core-a insulating property-a insulating property-a insulating property te chu a tlak theihna tur a la awm a, chu chu aluminum hydrox-a insulating property-te pawhin an hmu thei a ni. modification awm lovin.
2. Inorganic flame retardants ten low-smoke, halogen tel lo flame retardant EPDM insulating adhesives an thawh dan a nghawng dan
Magnesium hydroxide emaw aluminum hydroxide inorganic flame retardant pakhat chuan a rualin electrical property leh flame retardant property mamawh a phuhruk thei lo a, chuvangin aluminum hydroxide leh magnesium hydroxide leh a nghawng dan chu low-smoke halogen-free flame-retardant epdm insulating adhesuled adhesue, Ath 105z 104e leh MH302 dosulaz 104ez305z 1000000000000000000000 te chu a ni. 120 parts, MH3005Z dosage a san chuan EPDM insulating adhesive adhesive a sang a, flame retardant property a sang a, volume resistivity a tlahniam bawk. MH3005Z a san chuan EPDM insulating adhesive increases te menni viscosity leh tensile strength a sang a, flame retardant property a sang a, volume resistivity a tlahniam bawk. ATH 104E/MH3005Z ratio chu 90/30 a nih chuan EPDM insulating adhesive-a insulating leh flame retardant property te hian a mamawh a tlin a ni. ATH 104E / MH3005Z leh ratio 110 / 10 leh 120 / lo ratio te khaikhin chuan case pahnih a awm a, mahse EPDM insulation adhesive flame retardant properties hnuah ATH 104E hmun 10 a pung a, mahse a tlahniam chak lutuk physical property a ni. LATH 104E / MH3005Z leh ratio 70 / 50 leh 70 / 40 Case pahnih, MH3005Z hmun 10 tihtlem nan rubber-a insulation property a ti tha thei a, mahse flame retardant property hian a mamawh a phuhruk lo. Flame retardant property a awm theih nan chuan flame retardant zawng zawng hi a tlem thei lo.
EPDM insulation rubber material flameless smoke density hi 355 vel a ni a, inorganic flame retardant zat a awm a, ratio nena inzawmna chiang tak a awm loh avangin, hei hi a chhan chu a component zawng zawng formula avang a ni a, meikhu siam hi EPDM a ni ber a, mahse inorganic flame retardant hian flame retardant property a ti tha thei a, chubakah meikhu a chhuah thei lo bawk a, chu chuan rubber matrix a siam thei lo a, mahse, chu chu a ti tlem thei lo a, mahse, chu chu a ti tlem thei lo a ni.
3. Meikhu tihtlem agent chuan meikhu tihtlem a ti a, meikhu a tihtlem a, meikhu a tihtlem a, meikhu a tihtlem a, meikhu a tihtlem a, meikhu a tihtlem a, halogen-free flame-retardant EPDM insulating compound a awm bawk.
JB / T 10707 - 2007 'thermoplastic halogen-free low-smoke flame retardant cable materials' chuan rubber material meikhu awm lohna density chu 250 aia tam lo a nih tur thu a sawi a, chu chu rubber material meikhu density tihtlem nan chuan meikhu titawptuah chuan a tel tur a ni. Montmorillonite hian calcium-based, sodium-based, magnesium-based montmorillonite a pai a, stripping leh dispersion, purification leh modification, special organic composite hnuah layer thickness average chu 25 nm aia tlem a ni. Montmorillonite hi meikhu effect tha zawk neih theih nan thlan a ni.
EPDM insulation rubber material-a montmorillonite-a a nghawng dan chu a lang chiang hle a, mahse, flame retardant property-a a punna tlemte pawh a ni thei a, property dangte erawh chuan nghawng a nei tlem zawk thung Montmorillonite a pun zel avangin EPDM insulation rubber material smoke density drop chu a tlahniam zauh zauh a, a stabilized duh hle a, a senso tur ngaihtuah chuan montmorillonite zat chu part 5 atan thlang rawh.
4 Thutawp .
(1) Halogen-free low-smoke flame retardant EPDM insulating adhesive-ah chuan, modified magnesium hydroxide-in a dosage inang chiah a siam chuan flame retardant effect chu aluminum hydroxide aiin a tha zawk a, mahse magnesium hydroxide hian electrical insulation property-ah nghawng a nei lian zawk thung.
(2) Aluminum hydroxide leh magnesium hydroxide leh ratio 90 / 30 nei, meikhu hniam leh halogen-free flame retardant EPDM insulation adhesive material hian flame retardant property tha tak leh insulation property tha tak a nei a.
(3) Montmorillonite hman hian low-smoke halogen-free flame retardant EPDM insulation adhesive-a meikhu density chu a ti tlem thei a, mahse a dose a pun zel chuan adhesive-a meikhu density chu zawi zawiin a tlahniam a, montmorillonite-a dosage tha ber chu 5 parts a ni.
