Wɔde zinc oxide di dwuma titiriw sɛ vulcanizing active agent wɔ rɔba nneɛma mu, a ebetumi ama vulcanization ahoɔhare no ayɛ ntɛmntɛm na ama vulcanization no atu mpɔn, na ɛyɛ vulcanization nhyehyɛe no fã titiriw wɔ rɔba a wɔde yɛ nneɛma mu. Sɛ wɔde toto zinc oxide a ɛyɛ mmerɛw ho a, ultrafine active zinc oxide no wɔ nneɛma nketenkete a ɛyɛ nketenkete, asase ani fã pɔtee bi, dwumadi bi wɔ soro, nsu a ɛkɔ mu, apete pa ne physicochemical su afoforo. Enti, sɛ wɔde zinc oxide a ɛyɛ mmerɛw a ɛwɔ rɔba mu no si ananmu a, ebetumi atew ne dodow so a ɛrenka vulcanization su a ɛwɔ rɔba no mu ne honam fam ne mfiridwuma mu su horow a ɛwɔ vulcanized rɔba no mu.
Nhwehwɛmu a wɔyɛ wɔ aduruyɛdan mu .
Bere a wɔmaa zinc oxide no dodow a ɛyɛ adwuma kɔɔ soro fi 50% koduu 90% no, vulcanization induction time (T10) ne positive vulcanization time (T90) a ɛwɔ rɔba no mu no kɔɔ soro bere a a ɛyɛ adwuma no dodow no. zinc oxide
Bere a vulcanization induction bere (T10) ne positive vulcanization bere (T90) no kyɛe bere a dodow no kɔɔ soro, na elongation ne tensile su a rɔba no kɔɔ soro bere a dodow a active zinc oxide no kɔɔ soro, na adwumayɛ a eye sen biara no nyaa bere a dosage no duu 70%. Sɛnea rɔba ade no yɛ den no nsakra kɛse bere a zinc oxide dodow a ɛyɛ adwuma no kɔ soro no.
Batch validation .
Sɛ zinc oxide a ɛyɛ adwuma no dodow yɛ zinc oxide a ɛyɛ mmerɛw no 70% a, rɔba ade no honam fam ne mfiridwuma mu su ahorow no ne nea ɛwɔ zinc oxide a ɛyɛ mmerɛw mu no yɛ pɛ. Selected the ratio, using an dense refiner, Sɛ wɔbɛyɛ fit comparison test kɛse bi a, wɔakyerɛ nea efii mu bae wɔ Table 3. Sɔhwɛ no mu aba no kyerɛ sɛ zinc oxide a ɛyɛ adwuma no dodow .
IS 70% a ɛyɛ zinc oxide rɔba a ɛyɛ mmerɛw no ahoɔden a ɛyɛ den no korɔn sen zinc oxide rɔba a ɛyɛ mmerɛw no, adwumayɛ ho nsɛnkyerɛnne a aka no bɛn ɔhyew a ɛyɛ adwuma yiye a kan no yɛ no ye sen nea etwa to no.
Nneɛma a wɔde frafra .
Ultrafine active zinc oxide yɛ mmerɛw sɛ wobɛtu bere a worefra mu esiane nneɛma nketenkete nketenkete ne emu duru a ɛyɛ hare nti. Sɛ wode refiner no frafra mu a, ebetumi afa ɔkwan a wɔfa so frafra no akyi, zinc oxide a edi kan a ɛyɛ adwuma no akɔ ɔdan a wɔde nneɛma gu mu no mu, na afei wɔatow nneɛma afoforo ama oprehyɛn no .
Extrusion .
T10 a ɛwɔ zinc oxide a ɛyɛ adwuma no mu no ware sen zinc oxide a ɛyɛ mmerɛw no, a mfaso wɔ so ma hose no a wɔtwe fi mu no na ɛtew ɔhaw a ɛne sɛ ɔhyew no so esiane ɔhyew a ɛkɔ soro bere a wɔrefi mu no nti. Nneɛma a wɔyɛ no ankasa ada no adi sɛ rɔba a wɔde zinc oxide a ɛyɛ adwuma di dwuma no, extrusion process performance no ye. Extrusion .
Mfiri no hyew sohwɛ: ti hyew 70 ± 5 °C , nipadua hyew 50 ± 5 °C , screw ɔhyew 40 ± 5 °C ..
Vulcanization .
Ɛkame ayɛ sɛ zinc oxide T90 a ɛyɛ adwuma ne zinc oxide a ɛyɛ adwuma a wɔde di dwuma no ne vulcanization ɔhyew no yɛ pɛ na wobetumi de bere adi dwuma wɔ mfitiase adeyɛ no mu.
Ɛka
Zinc oxide a ɛyɛ adwuma no bo yɛ den sen zinc oxide a ɛyɛ mmerɛw, nanso wobetumi atew dodow no so, sɛnea sɔhwɛ no kyerɛ no, wobetumi de hose formula no adi dwuma 70% wɔ dodow no mu. Ɛka a wɔbɔ no nyinaa bɛyɛ nea ɛba fam.
Awie
(1) Wɔ hose formula no mu no wobetumi de 70% a ɛyɛ adwuma zinc oxide no adi dwuma sen sɛ wɔde zinc oxide a ɛyɛ mmerɛw no bedi dwuma no, honam fam ne mfiridwuma mu su a ɛwɔ vulcanized rɔba no mu titiriw no kɔ so yɛ nea ɛnsakra anaasɛ ɛkɔ anim.
(2) Wɔde ultrafine active zinc oxide di dwuma wɔ hose mu, adwumayɛ kwan no yɛ ade a ɛfata. Esiane T10 bere tenten nti, anti-scorch adwumayɛ ye, ɛfata ma extrusion.
(3) Zinc oxide a ɛyɛ adwuma yiye a wɔde di dwuma no betumi atew rɔba ho ka so.
