Rubber industry-ah chuan ultimate tensile strength hi mechanical property bulpui ber a ni. He experimental parameter hian vulcanised rubber compound chakna tawp ber a teh a ni. Rubber product chu a ultimate tensile strength hnaih takah hruai ngai lo mah se, rubber product hmangtu tam tak chuan compound quality zawng zawng tilangtu pawimawh takah an la ngai reng a ni. Chuvangin tensile strength hi specification tlangpui tak a ni a, thil chi khat hmanna tawp ber hian inzawmna nei tlem hle mah se, formulator-te chuan a tihhlawhtlin theih nan theihtawp an chhuah a ngai fo thin.
1. Thu bul tlangpui
Tensile strength sang ber hmuh theih nan chuan strain-induced crystallisation awm theihna elastomers atanga tan tur a ni tlangpui a, eg NR, CR, IR, HNBR.
2. Natural rubber hmanga siam NR
Natural rubber hmanga siam adhesive te hian neoprene adhesives aiin tensile strength an nei sang zawk tlangpui. Natural rubber grade hrang hrang zingah No. 1 fume film hian tensile strength a nei sang ber a ni. Carbon black filled compound-ah pawh nise, No. 3 fume film hian No. 1 fume film aiin tensile strength a pe tha zawk niin an sawi. Natural rubber compound tan chuan chemical plasticiser (plastisol) biphenyl amidothiophenol emaw pentachlorothiophenol (PCTP) te hi hman loh tur a ni a, hei hian compound tensile strength a tihziaawm avangin.
3. Chloroprene CR hmanga siam a ni
Chloroprene (CR) hi strain-induced crystalline rubber a ni a, filler awm lohnaah tensile strength sang tak a pe a ni. Dik tak chuan, a chang chuan filler tihtlem hmangin tensile strength hi tihpun theih a ni. CR molecular weight sang zawk chuan tensile strength sang zawk a pe thin.
4. Nitrile rubber hmanga siam NBR
NBR acrylonitrile (ACN) tamna chuan tensile strength sang zawk a pe a ni. NBR hian molecular weight distribution tawi tak a nei a, tensile strength sang zawk a pe a ni.
5. Molecular weight-in nghawng a neih dan
Optimisation hmang hian meniscus viscosity sang tak leh molecular weight sang tak nei NBR hman hian tensile strength sang zawk a pe a ni.
6. Carboxylated elastomer te chu a awm a
Compound tensile strength tihchangtlun nan uncarboxylated NBR chu carboxylated XNBR hmanga thlak leh uncarboxylated HNBR chu carboxylated XHNBR hmanga thlak danglam tum ang che.
Carboxylated NBR zinc oxide tling tawk hmanga siam hian NBR pangngai aiin tensile strength sang zawk a pe a ni.
7. EPDM a ni
Semi-crystalline EPDM (ethylene content sang) hman hian tensile strength sang zawk a pe a ni.
8. Reactive EPDM a ni
Unmodified EPDM chu NR nena blend-a 2% (mass fraction) maleic anhydride modified EPDM hmanga thlak chuan NR/EPDM compound tensile strength a tisang a ni.
9. Gels te hi a awm
SBR ang chi synthetic gel-ah hian a tlangpuiin stabiliser a awm thin. Mahse, SBR compound te chu 163°C aia temperature-a an inhmeh chuan loose gels (blended away theih) leh tight gels (blended away theih loh leh solvent thenkhata insoluble) te pawh siam theih a ni. Gel chi hnih hian compound tensile strength a ti tlem a ni. Chuvangin SBR mixing temperature hi uluk taka enkawl a ngai a ni.
10. Vulcanisation (vulcanisation) a ni
Tensile strength sang tak neih theihna kawng pawimawh tak chu crosslink density tihchangtlun a, under-sulphurisation, post-vulcanisation tih loh leh vulcanisation laiin pressure tling lo emaw, volatile components hman avanga rubber-a blistering awm loh hi a ni.
11. Pressure-a tlakchhiatna (vulcanisation) a ni
Autoclave-a vulcanized product-te tan chuan vulcanisation tawp thlenga pressure tihhniam zauh zauh a, blisters lo awm leh chuta tansile strength tlahniam chu pumpelh theih a ni a, hei hi ‘pressure drop vulcanisation’ tia hriat a ni.
12. Vulcanisation hun leh boruak lum leh vawt
Temperature hniam zawka vulcanisation hun rei zawk chuan multi-sulphur bond network a siam a, sulfur crosslink density a sang zawk a, chuvang chuan tensile strength a sang zawk bawk.
13. Carbon black ang chi reinforcing fillers te dispersion tihchangtlun nan blending technique tha zawk hmangin tensile strength tihchangtlun theih a ni a, chutih rualin bawlhhlawh emaw, undispersed component lian tak tak emaw inzawmkhawm loh a ni bawk.
14. Fillers te
Carbon black emaw silica ang chi filler tan chuan particle size te tak te, surface area bik lian tak thlan hian tensile strength tihchangtlunna kawngah a tangkai thei hle. Non-reinforcing emaw filling fillers te, leilung, calcium carbonate, talc, quartz sand, etc. hman loh tur a ni.
15. Carbon dum a ni
Carbon black hi a darh tha theih nan a filling chu a tha ber level-ah tihpun a ngai a, chu chuan tensile strength a ti sang thei ang. Carbon black particle size te tak te chuan optimum filling amount a nei tlem ang. Carbon black specific surface area tihpun leh mixing cycle tihzauh hmanga carbon black dispersion tihchangtlun hian rubber tensile strength a ti sang thei a ni.
16. Carbon dum dum
Precipitated silica specific surface area sang tak hman hian compound tensile strength chu nasa takin a ti tha thei a ni.
17. Plasticisers te hi a awm lo
Plasticisers hi tensile strength sang tak duh chuan hman loh tur a ni.
18. NBR compound vulcanising hian conventional vulcanisation hi a ruala theh darh a harsa zawk a, chuvangin magnesium carbonate hmanga enkawl sulfur chu NBR ang polar compound-ah a darh tha zawk ang. Vulcanising agent hi a theh darh tha lo a nih chuan tensile strength nasa takin a nghawng thei a ni.
19. Sulphur tam tak inzawmkhawmna crosslinking network
Vulcanisation system pangngaiah chuan crosslinking network hi polysulphide bonds-in a thunun a; EV nen chuan crosslinking network chu single leh double sulphide bonds-in a thunun a, a hmasa zawk hian tensile strength sang zawk a siam a ni.
20. Ionic crosslinking network hmanga inzawmna siam
Ionic cross-linked compound te hian tensile strength an nei sang zawk a, a chhan chu cross-linked point te hi a slip thei a, chuvangin a chhe thei lo va, a che thei a ni.
21. Stress crystallisation (a awm dan) a ni
Adhesive-a natural rubber leh neoprene-a stress crystals awmte dahkhawm hian tensile strength a ti sang thei dawn a ni.
