Rubber compounding-ah chuan tensile permanent deformation test aiin compression permanent deformation test tam zawk tih a ni. A hnuaia kan sawi tur ang hian rubber compound thil tam tak hian 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 ti hatu chuan tensile permanent deformation a ti ha hauh lo va, a lehlamah pawh. Chu bakah, rubber sealing products tan chuan compressive permanent deformation hi sealing pressure emaw sealing performance emaw hriltu tha tak a ni lo. A tlangpuiin compressive stress relaxation experiment tih harsa zawk chuan product sealing performance chu a predict tha zawk thin.
Rubber-a permanent deformation performance tihchangtlun nan a hnuaia experimental protocol te hi hman a ni. Note: Heng experimental protocol te hi thil awm zawng zawngah hman theih a ni lo mai thei. Chu bakah, compression emaw tension emawa permanent deformation tihtlem thei variable eng pawh hian property dang a nghawng thei a, text-ah hian a sawi dawn lo.
1. vulcanization system hmanga siam a ni
Peroxides te hi vulcanizing agents atana hman hi ngaihtuah la, chu chuan CC cross-linked bonds a siam thei a, chu chuan rubber chu permanent deformation a ti tha thei a ni. Ethylene propylene rubber chu peroxide hmanga vulcanization chuan rubber compression permanent deformation a tihziaawm thei a ni. Sulfur aiin peroxide hian a thatna chu peroxide hman awlsamna leh rubber-a compressive permanent deformation hniam vang a ni.
2. Vulcanization hun leh temperature
Vulcanization temperature sang zawk leh vulcanization hun rei zawk hian vulcanization degree a tisang thei a, chuvangin rubber compression set a ti tlem thei a ni.
3. Cross-linking density a ni
Rubber crosslinking density tihpun hian rubber compression permanent deformation chu nasa takin a tihziaawm thei a ni.
4. Sulphur vulcanization system hmanga siam a ni
EPDM compound compressive permanent deformation tihtlem leh heat resistance tihchangtlun nan he 'low deformation' vulcanization system (mass) hi kan ngaihtuah thei ang: sulfur 0.5PHR, ZDBC 3PHR, ZMDC 3PHR, DTDM 2PHR, TMTD3PHR.
W type neoprene-ah chuan diphenylthiourea accelerator hman hian compression hniam tak nei rubber chu permanent deformation a siam thei a, mahse CTP hi anti-coke agent atan hman loh tur a ni a, mahse scorching time a ti rei thei a, mahse compression permanent deformation a tichhe zawk thung.
NBR rubber tan chuan vulcanization system thlan bik ah chuan sulfur awm zat tihtlem tur a ni a, sulfur hmanga taksa pe turin TMTD emaw DTDM ang chi te chu sulfur thenkhat thlak nan tum la, sulfur element tlem zawk chuan rubber compression permanent deformation performance a ti tha ang. HVA-2 leh hyposulfuramide hmanga vulcanization system hian compression hniam zawk nei rubber chu permanent deformation a siam thei a ni.
5. peroxide vulcanization system hmanga siam a ni
BBPIB peroxide thlan hian rubber chu compression-ah permanent deformation tha zawk a pe ang. Peroxide vulcanization system-ah chuan co-crosslinker hman hian system chhunga unsaturation a tipung a, chu chuan crosslink density sang tak a thlen a, a chhan chu saturated chain atanga hydrogen lak ai chuan free radicals te chu unsaturated bonds nena crosslinking hi a awlsam zawk a ni. Co-crosslinker hman hian crosslinking network chi a tidanglam a, chu chuan adhesive-a compression permanent deformation property a ti tha zawk a ni.
6. vulcanization hnua tihchhuah
Vulcanization process chhung hian vulcanization by-product a awm a, atmospheric pressure-a post-vulcanization process hian heng by-product te hi a chhuah tir thei a, chu chuan rubber chu compression set hniam zawk a pe a ni.
7. Fluoroelastomer FKM/Bisphenol AF hmanga siam chhuah a ni
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-in nghawng a neih dan
Rubber formula-ah chuan rubber average molecular weight lian tak thlan hian rubber-a compression permanent deformation chu nasa takin a tihziaawm thei a ni.
NBR rubber atan chuan Mooney viscosity sang tak nei rubber hman tur a ni a, hei hian compression tenau nei rubber chu permanent deformation a siam thei a ni.
9. Neoprene a ni
W type neoprene hian G type neoprene aiin compression permanent deformation a nei tlem zawk.
10. EPDM a ni
Compression hniam nei rubber chu permanent deformation siam tur chuan EPDM rubber crystallinity sang tak hman loh tum ang che.
11. NBR
NBR hi coagulant atan calcium chloride hmanga emulsion polymerized a ni a, a tlangpuiin compression set hniam tak a nei thin.
NBR rubber tan chuan a compression permanent deformation performance ngaihtuah i duh chuan branching sang leh chain entanglement sang tak emaw acrylonitrile content hniam chi emaw thlang tum ang che.
12. Ethylene-acrylate hmanga siam a ni
AEM rubber tan chuan peroxide vulcanizing agents hian diamine vulcanizing agents aiin compression set hniam zawk a pe thei a ni.
13. Resin hmanga siam homogenizers te
Rubber compound-ah hian resin-based homogenizers hman loh tur a ni a, hei hian compound compression set a tipung a ni.
14. Fillers te
Filler filling, structure leh specific surface area tihtlem (particle size tihpun) hian compression set a tihtlem tlangpui ang. Chutih rual chuan filler surface activity tihpun hian compound compression set resistance a ti tha thei bawk.
15. Silica tih chu a ni
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 neih loh a ngai a ni. Filling quantity chu part 25 (by mass) aia tam a nih chuan compound compressive permanent deformation chu a lian ta hle a ni.
16. Silane hmanga inzawmkhawmna agent
Precipitated silica filling amount sang takah silane coupling agent hman dan ngaihtuah chuan adhesive compression permanent deformation chu a tlahniam thei a ni. Silane coupling agent hian silica filled rubber-a compression permanent deformation a tihziaawm thei a, chubakah silicate type filler clay, talcum powder leh filled rubber dangte compression permanent deformation pawh a ti tlem thei bawk.
17. Plasticizers te hi a tha hle
Rubber chhunga plasticizer filling amount tihtlem chuan rubber-a compression permanent deformation a tihziaawm tlangpui.
