Sɛ́ rɔba a ɛnyɛ polar a ɛwɔ nkɔnsɔnkɔnsɔn titiriw a ɛyɛ saturated no, ethylene propylene rɔba no wɔ adwumayɛ a ɛkyɛn so wɔ wim tebea a ɛko tia, polar media a ɛko tia, onyin a ɛko tia, ozone a ɛko tia, ne nea ɛkeka ho Nanso, ethylene propylene rɔba ahorow pii wɔ hɔ. Nanso, ethylene propylene rubber ahorow pii wɔ hɔ, ethylene propylene rɔba ahorow a ɛsono emu biara a ethylene ahorow wom, monomer a ɛto so abiɛsa ne emu nsɛm, mooney viscosity, ne nea ɛkeka ho Sɛnea ɛbɛyɛ a ɛbɛma mfiridwumayɛfo no ayɛ mmerɛw ama wɔapaw ethylene propylene rɔba a ɛfata a ɛfata no, krataa yi a wɔde di dwuma wɔ ɔkwan a ɛyɛ nwonwa so no yɛ nea wɔde di dwuma wɔ ɔkwan a ɛyɛ nwonwa so a wɔde wɔn ho di dwuma wɔ ɔkwan bi so a wɔde wɔn ho hyɛ mu no ma wɔn a wɔyɛ no ho mfonini Nsunsuanso a ethylene mu nsɛm, monomer a ɛto so abiɛsa ne Mooney viscosity nya wɔ nsɛm no adwumayɛ so. Wɔayɛ nhwehwɛmu pɔtee bi, a ɛkyerɛ biribi a ɛkyerɛ kwan.
Bere a mfiridwuma ne ɔmanfo anya nkɔso no, nneɛma a nkurɔfo hwehwɛ sɛ wonya no nso renya nkɔanim, rɔba nneɛma a ɛyɛ kɔla a ɛyɛ hann na ɛwɔ kɔla ahorow no de nkakrankakra rehyɛn nkurɔfo asetra mu, Silica sɛ ade titiriw a ɛhyɛ rɔba nneɛma a ɛyɛ kɔla a ɛyɛ hann no mu den no redi dwuma titiriw bi.
Sɛ́ ade a ɛhyɛ den a wɔde di dwuma titiriw wɔ rɔba nneɛma a ɛyɛ kɔla a ɛyɛ hann mu no, Silica redi dwuma a ɛho hia kɛse.
Nea efi mu ba ne nkɔmmɔbɔ .
1 Vulcanization adwumayɛ a ɛfa ethylene propylene rɔba ahorow ho .
Nkɛntɛnso a ethylene a ɛwɔ mu no nya wɔ bere a wɔde hyew nneɛma (TC10) ne ethylene propylene rɔba a ɛyɛ adwuma yiye no so.
1010 Saa ara na monomer a ɛto so abiɛsa no mu nsɛm no sua no, dodow no ara na ade no TC10 ne TC90 yɛ tiaa; Torque a ɛba fam koraa (mL) a ɛwɔ ade no mu no, dodow a monomer a ɛto so abiɛsa no mu nsɛm no sua.
torque a ɛba fam koraa (ML) a ɛwɔ ade no mu no nya nkɛntɛnso titiriw wɔ ethylene a ɛwɔ mu no so, dodow a ethylene no kɔ soro, dodow a ML a ɛwɔ ade no mu no yɛ kɛse, dodow no ara na ɛyɛ bɔne sen biara wɔ vulcanization mfiase, efisɛ torque a ɛsen biara (MH) betumi ada modulus a ɛwɔ rɔba no mu adi, wobetumi ahu sɛ nea ɛwɔ rɔba no mu no nso yɛ nea ɛma nneɛma a ɛwɔ mu no yɛ nea ɛkɔ soro no ma ɛkɔ soro kɛse no ma ɛkɔ soro nkakrankakra . Sɛ ɛne monomer a ɛto so abiɛsa no mu nsɛm no hyia yiye a, dodow no ara na nneɛma no mu nsɛm no kɔ soro, dodow a nneɛma no modulus no yɛ kɛse no, dodow no ara na nneɛma no modulus no yɛ kɛse, dodow no ara na nneɛma no modulus no yɛ kɛse. Wɔ ethylene a ɛwɔ mu koro no ara anaa nea ɛte saa ho no, dodow a monomer a ɛto so abiɛsa no kɔ soro no, dodow no ara na modulus no kɔ soro. Nsonsonoe a ɛda torque a ɛkorɔn sen biara ne torque a ɛba fam koraa (MH -ML) ntam no yɛ nea wɔde kyerɛ rɔba ade no cross-linking degree, na wobetumi ahu sɛ ethylene a ɛwɔ mu ne monomer a ɛto so abiɛsa no wɔ nkɛntɛnso koro no ara wɔ cross-linking degree no so, dodow no ara na ethylene content a ɛwɔ cross-linking degree a ɛkorɔn no nso yɛ kɛse, na nea ɛkorɔn no yɛ nea ɛkorɔn sen biara.
2 Mfiridwuma mu nneɛma a ɛwɔ ethylene propylene rɔba ho nhwehwɛmu ahorow mu .
Ethylene a ɛwɔ rɔba no mu no nya rɔba no den so nkɛntɛnso titiriw, dodow a ethylene a ɛwɔ mu no kɔ soro no, dodow a rɔba no yɛ den no, monomer a ɛto so abiɛsa no nni nkɛntɛnso kɛse wɔ sɛnea ɛyɛ den no so; Nneɛma a ɛyɛ den ne ahoɔden a ethylene wom no da adi kɛse, bere a ethylene a ɛwɔ mu no kɔ soro no, nneɛma no ahoɔden ne nusu ahoɔden no kɔ soro nkakrankakra, bere a ethylene a ɛwɔ Tensile ahoɔden, dodow a nneɛma tensile ahoɔden no kɔ soro no, dodow no ara na nneɛma a ɛtwetwe ahoɔden ne ahoɔden a ɛtetew no kɔ soro. Saa ara nso na dodow a monomer a ɛto so abiɛsa no kɔ soro no, dodow no ara na ahoɔden a ɛtwetwe ade no yɛ den na ɛtetew no, na ɛkyerɛ sɛ ethylene a ɛwɔ mu no ne monomer a ɛto so abiɛsa no wɔ ahoɔden a ɛwɔ nkɛntɛnso a ɛwɔ synergistic effect mu no so; Ethylene a ɛwɔ mu ne monomer a ɛto so abiɛsa a ɛwɔ nneɛma a ɛtrɛw mu nhyɛso mu no te sɛ nea ɛwɔ ahoɔden a ɛwɔ ade no mu no, dodow a ethylene a ɛwɔ ade no mu no kɔ soro no, dodow no ara na monomer a ɛto so abiɛsa a ɛwɔ nneɛma a ɛtwetwe ade no mu no kɔ soro sɛnea ɛfata no, dodow no ara na ɛyɛ kɛse Ethylene a ɛwɔ tensile elongation a ɛwɔ nkɛntɛnso ketewaa bi mu, wɔ tensile elongation a ɛwɔ ade no mu a ethylene a ɛwɔ mu no kɔ soro no mu, kosi baabi no, tensile ahoɔden ne nusu ahoɔden a ɛwɔ ade no mu no rekɔ soro nkakrankakra, akodu baabi no, dodow no ara na monomer a ɛto so abiɛsa no kɔ soro. Wɔ kwan pɔtee bi so no, elongation a ɛwɔ break mu no kɔ soro nkakrankakra bere a ethylene-based content no kɔ soro no, na afei efi ase so tew nkakrankakra wɔ degree bi akyi, monomer a ɛto so abiɛsa no ne nsakrae a ɛba wɔ elongation mu wɔ break mu no hyia, ma ethylene-based content koro no ara anaasɛ ɛte saa ara, dodow no ara na monomer a ɛto so abiɛsa no mu nsɛm no yɛ kɛse, dodow no ara na elongation no yɛ kɛse wɔ break of the material a ɛyɛ no; Abrasion adwumayɛ a ɛwɔ asɛm no mu no ne ne den ne n’ahoɔden wɔ abusuabɔ kɛse, sɛ yɛbɛka no ɔkwan biara so a, dodow a ɛyɛ den ne ahoɔden a ɛkɔ soro no, abrasion volume no bɛyɛ ketewaa sɛnea ɛfata, na abrasion adwumayɛ no bɛyɛ papa; Bere a ethylene-gyina mu nsɛm no kɔ soro no, abusuabɔ pɔtee bi da hardness ne ahoɔden ne abrasion adwumayɛ a ɛwɔ asɛm no mu ntam. Nneɛma a ɛyɛ den ne ahoɔden no akɔ soro akodu baabi, abrasive volume no so atew nkakrankakra, monomer a ɛto so abiɛsa no afã abien no nso bɛka nneɛma no abrasive properties, a ɛda adi wɔ nkɔanim a ɛba wɔ monomer a ɛto so abiɛsa no mu no, bɛtew abrasive volume a ɛwɔ nneɛma no mu no so, nanso sɛ wɔde toto ethylene a ɛwɔ mu no ho a, monomer a ɛto so abiɛsa no nni nkɛntɛnso kɛse wɔ ne abrasive properties so.
3 Ethylene propylene rɔba ahorow ahorow ahorow a ɛyɛ adwuma .
Yebetumi ahu sɛ, bere a onyin wɔ 160 °C mu wɔ 24h akyi no, ade no mu den no sesa kakraa bi pɛ, ntini a ɛtwetwe no bere nyinaa no kɔ soro kakra, nanso sɛnea ɛte wɔ ne nyinaa mu no kɔ soro, ahoɔden a ɛtwetwe no so tew kakra, ne nyinaa a wɔde tra hɔ no kɔ so yɛ kɛse, na ntini a ɛtwetwe no dodow kɔ soro kakra Nea enti a ɛte saa ne sɛ ethylene-propylene rɔba yɛ rɔba a ɛwɔ nkɔnsɔnkɔnsɔn titiriw a ɛyɛ saturated, a ɛma ɔhyew-mframa a ɛma ɔhyew no yɛ kɛse. Esiane sɛ ethylene propylene rɔba a ɛyɛ hyew a ɛyɛ hyew no ntumi nkɔ so nyɛ adwuma yiye nti, ɛyɛ den sɛ wɔbɛkyerɛ nkɛntɛnso a ethylene a ɛwɔ mu ne monomer a ɛto so abiɛsa no nya wɔ sɛnea nneɛma no reyɛ kɛse no so wɔ bere tiaa bi a mframa a ɛyɛ hyew rebɔ akwakoraa ne aberewa no mu.
4 Ethylene propylene rɔba ahorow ahorow a ɛsono emu biara .
Bere a ethylene a ɛwɔ mu no kɔ soro no, ɔhyew a ɛba fam a ɛko tia ade no sɛe nkakrankakra.
Ethylene a ɛkɔ soro no, ɔhyew a ɛba fam a ɛko tia ade no sɛe nkakrankakra, ethylene a ɛte saa ara anaasɛ nea ɛte saa ara, dodow a ɛba fam wɔ monomer a ɛto so abiɛsa no mu, dodow a ɔhyew a ɛba fam a ɛko tia ade no, eyi te saa efisɛ ethylene a ɛwɔ ethylene propylene rɔba mu no kɔ soro, ne molecule daa no dodow kɔ soro na ɛkɔ soro wɔ ahwehwɛ no nso mu Crystallization tumi a ɛkɔ soro no bɛma ade no ayɛ den na ayɛ den, nanso ɛbɛtew molecule nkɔnsɔnkɔnsɔn no nyinaa a ɛyɛ mmerɛw sɛ ɛbɛyɛ nea ɛyɛ mmerɛw no so, ma enti ɔhyew a ɛba fam a ɛko tia ade no sɛe. Sɛ ethylene kuw no mu nneɛma bɛn wɔn ho wɔn ho a, monomer a ɛto so abiɛsa no mu nneɛma a ɛba fam no bɛma nneɛma no ayɛ nea ɛba fam wɔ cross-linking mu, na ɛbɛma molecule no nyinaa atumi ayɛ nsakrae kɛse, na ama ɔhyew a ɛba fam a ɛko tia nneɛma no atu mpɔn.
Awie
(1) Ethylene propylene rɔba ahorow ahorow a ɛsono emu biara, ne ethylene a ɛwɔ mu no wɔ nkɛntɛnso kɛse wɔ adwumayɛ afã horow nyinaa so, na ɛno akyi no, ne monomer a ɛto so abiɛsa no, Mooney Viscosity wɔ nkɛntɛnso kɛse wɔ ne dwumadi adwumayɛ so, na ɛwɔ nkɛntɛnso ketewaa bi wɔ agyapade afoforo so.
(2) Wɔ monomer a ɛto so abiɛsa no su ne ethylene propylene rɔba koro no ara ho no, dodow a ethylene a ɛwɔ mu no kɔ soro no, dodow no ara na mfiri ahoɔden no yɛ kɛse no, dodow no ara na ɔhyew ne mframa a ɛyɛ adwuma yiye a ɛko tia no yɛ papa, nanso sɛnea ɛko tia ɔhyew a ɛba fam no nyɛ papa.
(3) Wɔ ethylene koro no ara a ɛwɔ ethylene propylene rɔba mu no, dodow a monomer a ɛto so abiɛsa no mu nneɛma kɔ soro no, dodow no ara na mfiri ahoɔden no yɛ kɛse, dodow no ara na ɔhyew ne mframa a ɛyɛ den a ɛko tia no yɛ papa, nanso ɔhyew a ɛba fam no yɛ nea ɛyɛ den.
