Rubber compounding-ah chuan tensile permanent deformation test aiin compression permanent deformation test tam zawk an nei a. A hnuaia kan sawi tur ang hian rubber compound thil tam tak chuan a deformation property a nghawng a ni. Hetah hian hriat tur chu compressive permanent deformation leh tensile permanent deformation te hi property hrang hrang pahnih an ni. Chuvangin, compression permanent deformation tichaktu chuan tensile permanent deformation a ti tha hauh lo va, a lehlamah pawh a ti tha lo hle bawk. Chu bakah, rubber sealing products atan chuan compressive permanent deformation hi sealing pressure emaw sealing performance emaw predictor tha tak a ni lo. A tlangpuiin, compressive stress relaxation experiment tih a harsat poh leh a product sealing performance a tha zawk tih an sawi lawk thin.
Rubber-a permanent deformation performance tihsan nan a hnuaia experimental protocol te hi hman a ni. Note: Heng experimental protocol te hi a awm zawng zawngah hman theih a ni lo mai thei. Chu bakah, compression emaw tension emaw-a permanent deformation tihtlem thei variable eng pawh hian property dang a nghawng thei a, text-ah pawh address a ni lo ang.
1. Vulcanization kalphung .
Peroxides hi vulcanizing agents atana hman hi han ngaihtuah teh, chu chuan CC cross-linked bonds a siam thei a, chu chuan rubber permanent deformation a ti tha thei a ni. Ethylene propylene rubber leh peroxide hmanga vulcanization hian rubber compression permanent deformation a ti tlem thei a ni. Sulfur aiin peroxide a thatna chu peroxide handling awlsamna leh rubber compressive permanent deformation hniam tak a ni.
2. Vulcanization hun leh a lum dan .
Vulcanization temperature sang zawk leh vulcanization hun rei zawk hian vulcanization degree a tisang thei a, chuvangin rubber compression set a ti tlem thei bawk.
3. Cross-linking density .
Rubber crosslinking density tihpun chuan rubber compression permanent deformation chu a ti tlem thei hle.
4. Sulfur Vulcanization hmanga kalpui dan tur .
EPDM compound-a compressive permanent deformation tihtlem leh heat resistance tihchangtlun nan he 'low deformation' vulcanization system (mass) hi kan ngaihtuah thei ang: Sulphur 0.5Phr, ZDBC 3PHR, ZMDC 3PHR, DTDM 2PHR, TMTD3PHR.
W type neoprene-ah chuan diphenylthiourea accelerator hman hian compression low compression permanent deformation nei rubber chu a siam thei a, mahse CTP chu anti-coke agent atan hman loh tur a ni a, mahse a rimtui hun a ti rei thei a, mahse compression permanent deformation-ah chuan damage a nei tam zawk thung.
NBR rubber tan chuan vulcanization system thlan bik ah chuan sulfur a tlem tur a ni a, sulfur hmang tum la, sulfur thenkhat thlak nan TMTD emaw DTDM ang chi taksa pek tum la, sulfur element tlem zawk chuan rubber compression permanent deformation performance a ti tha ang. HVA-2 leh hyposulfuramide hmanga vulcanization system hian rubber chu compression lower permanent deformation neiin a siam thei a ni.
5. Peroxide vulcanization system 1.1.
BBPIB peroxide thlan hian rubber chu compression-ah permanent deformation tha zawk a pe ang. Peroxide vulcanization system-ah chuan co-crosslinkers hman hian system chhunga unsaturation a tipung a, chu chuan crosslink density sang tak a thlen a, a chhan chu free radicals leh unsaturated bonds crosslinking chu saturated chain atanga hydrogen lak ai chuan a thleng awlsam zawk a ni. Co-Crosslinkers hman hian crosslinking network chi hrang hrang a thlak danglam a, chu chuan adhesive-a compression permanent deformation property a ti tha a ni.
6. Vulcan siam hnua .
Vulcanization process chhung hian vulcanization by-products a awm a, atmospheric pressure-a post-vulcanization process hmang hian heng by-products te hi chhuah theih a ni a, chu chuan rubber chu compression set hniam zawk a pe a ni.
7. Fluoroelastomer FKM/Bisphenol AF Vulcanization 2019. A rilru a hah lutuk chuan a rilru a buai em em a.
Fluoroelastomers tan chuan peroxide vulcanizing agent aiah bisphenol vulcanizing agent hman hian rubber chu compression-ah permanent deformation hniam zawk a pe thei a ni.
8. Molecular weight a nghawng dan .
Rubber formula-ah chuan rubber thlan hian molecular weight average lian tak neiin rubber-a compression permanent deformation chu a ti tlem thei hle.
NBR rubber tan chuan Mooney viscosity sang tak nei rubber hman tur a ni a, chu chuan compression te tak te nei rubber chu permanent deformation a siam thei a ni.
9. Neoprene .
W Type Neoprene hian G type neoprene aiin compression permanent deformation a nei tlem zawk.
10. EPDM .
Compression hniam tak nei rubber chu permanent deformation nei turin siam tur chuan crystallinity sang tak nei EPDM rubber hman loh tum ang che.
11. NBR .
NBR hi emulsion polymerized with calcium chloride chu coagulant atan hman a ni a, a tlangpuiin compression set hniam tak a nei thin.
NBR rubber tan chuan a compression permanent deformation performance-ah i rilru i pe duh a nih chuan, branching sang leh chain entanglement sang tak nei chi emaw, acrylonitrile content hniam nei chi emaw thlang tum ang che.
12. Ethylene-Acrylate Rubber 1000 a ni.
AEM rubber tan chuan peroxide vulcanizing agents hian diamine vulcanizing agents aiin compression set a pe tlem zawk thei a ni.
13. Resin hmanga siam homogenizers .
Rubber compound-a resin-based homogenizers hman loh tur a ni a, hei hian compound compression set a tihpun avangin.
14. Fillers .
Filler-a filling, structure leh specific surface area tihtlem (particle size tihpun) chuan compression set a ti tlem tlangpui. Chutih rual chuan filler surface activity tihpun hian compound a compression set resistance pawh a ti tha thei bawk.
15. Silica .
Compound chhunga silica filler hniam zawk chuan compression set a ti tlem ang. Compression set hniam tak neih theih nan chuan silica filling sang tak a awm loh nan a tul a ni. Filling quantity chu 25 parts (by mass) aia sang a nih chuan compound compressive permanent deformation chu a lian ta a ni.
16. Silane coupling agent .
Silica precipitated filling amount-a silane coupling agent hman dan ngaihtuah chuan adhesive-a compression permanent deformation chu tihtlem theih a ni. Silane coupling agent hian silica filled rubber-a compression permanent deformation a tihtlem thei a, chubakah silicate type filler clay, talcum powder leh filled rubber dangte compression permanent deformation pawh a ti tlem thei bawk.
17. Plasticizer 1000 a awm a.
Rubber-a plasticizer filling zat tihtlem chuan rubber-a compression permanent deformation a tihziaawm tlangpui.
