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 taka lak chhuah ngai lo mah se, rubber product hmangtu tam tak chuan compound quality zawng zawng chhinchhiahna pawimawh takah an la ngai reng a ni. Chuvangin tensile strength hi a tlangpuiin specification a ni a, a tawp bera hman tur thil pakhat chu a hmanna tur a awm tlem hle nachungin, formulator-te chuan an hmachhawn theih nan an chhuah a ngai fo thin.

1. Thurin tlangpui .

Tensile strength sang ber hmuh theih nan chuan elastomers atanga tan tur a ni a, chutah chuan strain-induced crystallisation a awm thei a, eg NR, CR, IR, HNBR.

2. Natural rubber nr .

Natural rubber hmanga adhesives siam hian neoprene adhesives aiin tensile strength a nei sang zawk tlangpui. Natural rubber grade hrang hrang zingah No. 1 Fume Film hian tensile strength a nei sang ber a ni. A tlem berah chuan carbon black filled compound-ah chuan No. 3 Fume Film hian No. 1 fume film aiin tensile strength a pe tha zawk tih an sawi. Natural rubber compounds tan chuan chemical plasticisers (plastisol) biphenyl amidoophenol emaw pendachlorotophenol (PCTP) ang chi te hi hman loh tur a ni a, chu chu compound tensile strength a tihniam vang a ni.

3. Chloroprene Cr 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, filler tihtlem hian tensile strength hi a chang chuan tihpun theih a ni. CR molecular weight sang zawk chuan tensile strength sang zawk a pe a.

4. Nitrile rubber NBR .

NBR acrylonitrile (ACN) a tam zawk chuan tensile strength sang zawk a pe a. NBR molecular weight distribution tawi tak nei chuan tensile strength sang zawk a pe a.

5. Molecular weight-in nghawng a neih dan .

Optimisation hmang hian NBRs meniscus viscosity sang leh molecular weight sang tak hman hian tensile strength sang zawk a pe a ni.

6. Carboxyl-a siam elastomer te .

Uncarboxylated NBR chu carboxylated XNBR hmanga thlak leh uncarboxylated HNBR chu carboxylated XHNBR hmanga thlak dan tur ngaihtuah la, chu chuan compound-a tensile strength a ti tha ang.

Carboxylated NBR zinc oxide tling tawk nei chuan NBR hmanlai aiin tensile strength a sang zawk.

7. EPDM .

Semi-crystalline EPDM (high ethylene content) hman hian tensile strength sang zawk a pe a ni.

8. REACTIVE EPDM .

Unmodified EPDM chu 2% (mass fraction) maleic anhydride modified EPDM chu NR nena blend-a thlak chuan NR/EPDM compound tensile strength a tisang a ni.

9. Gels .

SBR ang chi synthetic gel-ah hian stabiliser a awm tlangpui. Mahse, SBR compound 163°C aia sang a mix lai hian loose gels (a blend theih) leh tight gels (which cannot be blended away and are insoluble in certain solvents) te chu a lo chhuak thei a ni. Gel chi hnih hian compound tensile strength an ti tlem a. Chuvangin SBR mixing temperature chu uluk taka enkawl a ngai a ni.

10. Vulcanisation .

Tensile strength sang tak hmuh theihna kawng pawimawh tak chu crosslink density tha zawk siam a, under-sulphurisation, post-vulcanisation pumpelh a, pressure tlem vang emaw, volatile components hman avanga vulcanisation laiin rubber blistering tih loh hi a ni.

11. Pressure-Drop Vulcanisation .

Autoclave-a vulcanised products tan chuan blisters siam leh a result tensile strength tlahniam chu vulcanisation tawp thlenga pressure tihhniam zauh zauh chuan pumpelh theih a ni a, hei hi ‘pressure drop vulcanisation’ tia hriat a ni.

12. Vulcanisation hun leh a lum dan .

Temperature hniam zawka vulcanisation hun rei zawk chuan multi-sulphur bond network a siam a, sulfur crosslink density a sang zawk a, chu chuan tensile strength a ti sang zawk a ni.

13. Tensile strength chu blending technique tha zawk hmangin a tichangtlung thei a, chu chuan carbon black ang chi reinforcing fillers dispersion a ti tha a, chutih rualin impurities emaw undispersed components lian tak tak emaw mixing a veng thei bawk.

14. Fillers .

Carbon black emaw silica ang chi fillers tan chuan particle size te tak te thlan hian surface area bik lian tak neiin tensile strength a ti tha thei a ni. Non-reinforcing emaw filling fillers te, clay, calcium carbonate, talc, quartz sand, etc. te hi ei loh tur a ni.

15. Carbon dum a ni.

Carbon black chu a darh tha em tih enfiah nan a filling chu tensile strength tihsan nan optimum level thlenga tihpun a ngai a ni. Carbon black particle size tlemte nei chuan optimum filling amount a hniam ang. Carbon black surface area bik tihpun leh mixing cycle tihzauh avanga carbon black dispersion tihchangtlun chuan rubber tensile strength a ti tha thei.

16. Carbon dum a ni.

Precipitated silica hman hian surface area bik sang tak neiin compound tensile strength a ti tha thei hle.

17. Plasticiser-te .

Plasticisers hi tensile strength sang duh a nih chuan tih loh tur a ni.

18. Vulcanising NBR compounds hian conventional vulcanisation chu a inang tlanga theh darh a harsa zawk a, chuvangin sulfur magnesium carbonate hmanga enkawl chu NBR ang polar compound-ah a darh tha zawk ang. Vulcanising agent chu a darh tha lo a nih chuan tensile strength chu nasa takin a nghawng thei a ni.

19. Multi-sulphur-a inzawmna (multi-sulphur) a awm a.

Vulcanisation system pangngai hmangin crosslinking network chu polysulphide bonds-in a thunun a; EV hmang hian crosslinking network chu single leh double sulphide bonds-in a thunun a, a hmasa zawk chuan tensile strength sang zawk a thlen a ni.

20. Ionic crosslinking network hrang hrangte .

Ionic cross-linked compound te hian tensile strength an nei sang zawk a, a chhan chu cross-linked points te hi an slip thei a, chuvang chuan torn lovin an che thei a ni.

21. Stress crystallisation .

Adhesive-a stress crystal awmna natural rubber leh neoprene te inzawmkhawm hian tensile strength a ti sang thei dawn a ni.