Rubber hian engtin nge temperature resistance a tihchangtlun theih ang?

Hot air aging emaw heat aging emaw laka invenna hi a pawimawh zual hle a, a bik takin automotive application-ah chuan rubber parts hi hmun khuh, ambient temperature sang tak awmnaah hman tam ber a ni. Automotive siamtute chuan an rubber part-te service life rei zawka inpe turin nawrna a sang chho zel niin an hria. Anaerobic heat aging property leh heat leh air aging property te hi a inang lo hle. Rubber hian heat resistance a nei tha zawk a, mahse oxygen attack a la tuar thei lo mai thei.

Note: Heng general test protocol te hi case bik pakhatah hman theih a ni lo mai thei. Air-aging resistance emaw heat-aging resistance emaw tichangtlung thei variable pakhat pawhin property dang a nghawng ngei ang, a tha emaw a chhe emaw pawh nise.

1. Perfluoroelastomer hmanga siam a ni

Rubber material hian heat resistance tha tak a neih a ngai a nih chuan perfluorinated rubber i thlang tur a ni. Perfluoroelastomer hmanna temperature chu 316°C thleng a ni tih an sawi.

2、 Fluorine rubber hmanga siam a ni

Fluorine rubber FKM hian lumna a do tha hle a, 260°C thlenga lumnaah pawh hman theih a ni. Fluorine rubber-a temperature sang resistance tihchak belh zel tur chuan acid acceptor (acid absorbent) dik tak i thlan a ngai a, chu chu low activity magnesium oxide, high activity magnesium oxide, calcium oxide, calcium hydroxide, zinc oxide, etc. Fluoroelastomer-a heat resistant air aging performance pawh a tha hle a, a hmanna temperature pawh a sang thei ang 200°C a ni. Vulcanization system atan bisphenol AF thlan a nih chuan rubber hian heat aging resistance a ti tha zawk ang. Engine oil boruak khauh takah hman a nih chuan vinylidene fluoride, tetrafluoroethylene leh propylene atanga siam ternary fluoroelastomer hian heat aging resistance a nei tha zawk a, general fluoroelastomer aiin a tha zawk. Hei hi polymerization process-a hexafluoropropylene chu propylene hmanga thlak a nih vang a ni.

3、 HNBR a ni

Hydrogenation degree a san chuan HNBR hian heat resistance a ti tha zawk a, a chhan chu main chain-ah hian unsaturated double bond a awm lo tluk a, chu chu unstable a ni. HNBR thenkhat chu unsaturated double bonds engemaw zat an la neih avangin sulfur hmanga vulcanized theih a la ni. Mahse, peroxide hmanga vulcanized a nih chuan compound hian heat resistance a ti tha zawk ang. HNBR rubber tan chuan TOTM hian DOP aiin heat resistance tha zawk a pe thei a, a chhan chu heng trioctyl plasticizers te hi volatility hniam leh molecular weight sang tak a nih vang a ni.

4. Neoprene a ni

W-type neoprene hian G-type neoprene aiin heat aging resistance a nei tha zawk. Diphenylamine octanoate hi neoprene tan antioxidant tha zawk a ni a, hei hian khaw lum dona kawngah nasa takin a tichak thei a ni.

5、 EPDM a ni

EPDM hian fit tha tak hnuah 125°C-ah heat resistance tha tak a la nei tho ang. Peroxide vulcanized EPDM hman hian, rubber hian heat resistance tha zawk a nei thei a ni.

6、 Viscosity hniam vapor phase hmanga siam dan EPDM

Ethylene content sang leh ultra-low viscosity vapor phase EPDM, filler tam takin a khat thei a, ethylene tam vangin, processing hian heat-resistant air aging processing zawm a ngai lo a, a tha lo leh resin, chuti chung pawh chuan rubber chu processing property tha tak neiin a siam thei a, chuvangin rubber-a heat resistance tak tak chu a tha zawk a ni.

7、 Styrene resin sang tak hman loh tur

Rubber temperature sang taka hman ah hian styrene resin sang tak dah loh tur.

8、 Talkum powder a ni

EPDM hose rubber-ah chuan carbon black 40% chu talcum powder hmangin thlak la, hei hian rubber-a heat aging resistance a ti ha thei a ni. Talcum powder grade thenkhat chuan he mi kawngah hian leilung thianghlim emaw, tihfai loh emaw aiin hlawkna langsar zawk a nei a ni.

9、 Viscosity sang tak nei plasticizer

Plasticizers zingah hian high viscosity plasticizers hian low viscosity plasticizers aiin heat aging resistance tha zawk a pe thei a ni. A chhan chu high viscosity plasticizer hian molecular weight sang tak a nei tlangpui a, a volatilize awlsam lo va, chuvangin stability tha tak leh heat resistance tha tak a nei thin.

10、Neoprene atana hman tur Rape chi hriak

Neoprene hian resilience tha zawk a neih theih nan canola oil hi a mamawh a, a chhan chu viscosity a hniam avangin rubber hian hysteresis a nei tlem a, volatility a nei tlem a, hei hian rubber hian aging resistance tha tak a nei thei a ni.

11、EV/semi-effective SEV vulcanization system tha tak a ni

Vulcanization system effective emaw semi-effective emaw-ah chuan accelerator leh sulfur ratio a sang a, chu chu 'high promotion leh low sulfur' system a ni a, single sulfur ai chuan 'sulphur to the body' a awm a, he vulcanization system-ah hian vulcanized rubber-a single sulfur bond leh double sulfur bond proportion a sang zawk a, a chhan chu a stability vang a ni He vulcanization-ah hian system-ah chuan single sulfur bond leh double sulfur bond ratio chu multi-sulphur bond aiin a sang zawk a, chuvangin rubber-a heat resistance stability a tha a, heat aging resistance pawh a tha zawk a ni.

12、Zinc oxide a ni

Vulcanization / sub-sulfuramide vulcanization system of the rubber, zinc oxide tam zawka khat hian rubber chu heat aging property tha zawk a pe thei a, post-sulphur laka a resistance tha zawk a pe thei bawk.

13、Peroxide hmanga vulcanized EPDM rubber hmanga siam a ni

Peroxide vulcanized EPDM compound-ah hian ZMTI hi antioxidant atan thlan a ni a, hei hian compound chu modulus sang zawk leh heat aging resistance a pe thei a ni.