Zinc oxide yɛ ade a wɔtaa de yɛ adwuma wɔ rɔba a wɔyɛ mu. Wɔ rɔba a wɔyɛ mu no, nwura ne nea wɔsan de di dwuma no betumi ama zinc nnuru afi mu, na apira nneɛma a atwa yɛn ho ahyia, enti ɛsɛ sɛ wɔtew zinc oxide dodow a ɛwɔ rɔba no mu no so. active zinc oxide wɔ particle kɛseɛ, ne soro beaeɛ kɛseɛ, vulcanization dwumadie kɛseɛ, sɛ wɔde toto zinc oxide a ɛyɛ adwuma ho a, active zinc oxide dodoɔ so tew, na ɛnam so tew ɔhaw a zinc de ba nneɛma a atwa yɛn ho ahyia so, na ɛkyerɛ mfasoɔ a ɛwɔ nneɛma a atwa yɛn ho ahyia ne sikasɛm mu.
zinc oxide Wɔde ɔkwan a ɛyɛ nsuo, a ɛyɛ osutɔ ne nea wɔayam a wɔaka abom, na ɛyɛ zinc oxide a ɛyɛ adwuma de yɛ a ɛyɛ adwuma ne zinc oxide a ɛda adi, a ɛne atetesɛm kwan a ɛnteɛ a wɔde yɛ ogya a wɔn a wɔyɛ no foforɔ pii de di dwuma no bɔ abira. Nsuo kwan no wɔ nsusuiɛ a ɛkorɔn wɔ ne su mu, adeyɛ no nso de ɔfasuo pɔtee kɛseɛ (40m2/g) ne nneɛma nketenkete kɛseɛ kyekyɛ a ɛyɛ papa ma dwumadie pii, na dadeɛ a emu yɛ duru efĩ a ɛba fam no yɛ nneɛma a atwa yɛn ho ahyia ho bɔhyɛ a ɛwɔ saa adeɛ yi mu no mu baako.
Adeyɛ kwan a wɔfa so yɛ nsuo kwan no te sɛ nea edidi so yi: zinc ingot ne sulfuric acid yɛ adwuma ma ɛyɛ zinc sulfate, na afei ne sodium carbonate yɛ adwuma ma ɛyɛ zinc carbonate sɛ ade a wɔde yɛ zinc oxide. Sɛ wɔde zinc carbonate yɛ ade a wɔde yɛ adwuma a, wɔde ahohoro, wɔma ɛyow, wɔhyew ne nea wɔbubu so na ɛyɛ zinc oxide.
Sɛ wɔkyekyɛ mu a, zinc oxide a ɛyɛ adwuma no mu nneɛma nketenkete kɛseɛ yɛ 50nm, ne soro pɔtee no yɛ kɛseɛ, bɛyɛ 40m2/g, na ahwehwɛ no yɛ ɛwoɔ, ɛyɛ hare na ɛyɛ abon, enti apete no ye; ne diffusion ahoɔhare yɛ ntɛmntɛm sen zinc oxide a ɛyɛ mpapahwekwa, nkyekyɛmu yɛ pɛ, wɔ adeyɛ a ɛbɛma adeyɛ a ɛne bridging agglomeration atu mpɔn no mu, titiriw no wobetumi ayɛ ade koraa; dade a emu yɛ duru Pb2 +, Cu2 +, Cd2 +, Mn2 +, Fe2 + a ɛwɔ mu no sua koraa, na ɛne nneɛma a atwa yɛn ho ahyia ho banbɔ ahwehwɛde ahorow hyia.
Nneɛma a Wɔde Di Dwuma
Zinc oxide a ɛwɔ rɔba adwumayɛ mu no, wɔde di dwuma titiriw sɛ rɔba vulcanization active agent (accelerating agent), a ne dwumadi ne sɛ ɛbɛma vulcanization accelerator no dwumadi ayɛ kɛse na ama rɔba vulcanization nkɛntɛnso atu mpɔn. Nea ɛma ɛyɛ adwuma ne: zinc oxide ne accelerator nnuru a ɛyɛ adwuma de yɛ accelerator zinc nkyene; accelerator zinc nkyene ne polysulfide molecules a wɔde yɛ polysulfide zinc nkyene; polysulfide zinc nkyene ne rɔba macromolecule reaction awie nnuru a etwa to crosslinking, sɛnea ɛbɛyɛ a ɛbɛhyɛ vulcanization a rɔba no ho nkuran, activation ne ahoɔden a ɛwɔ dwuma a ɛko tia onyin, na ama wɔanya pintinn, processing ahobammɔ, kɛse a ɛbɛtew wɔ defective rate, na ama rɔba nneɛma no atu mpɔn, tear resistance, abrasion resistance, na ama fixed elongation a vulcanized no akɔ soro rɔba, na ɛma nkɛntɛnso a rɔba vulcanization nya no yɛ kɛse. Na tu mpɔn wɔ vulcanized rɔba stretch nhyɛso, tensile ahoɔden ne elongation, tew compression daa deformation, ne nea ɛkeka ho.
1. Zinc oxide a ɛyɛ adwuma wɔ semi-dade radial tae innerliner dwumadie no mu
Wɔ tebea horow dodow koro no ara mu no, zinc oxide 2 # formula rɔba a ɛyɛ adwuma a wɔde sa yare ntɛmntɛm sen zinc oxide 1 # formula rɔba a ɛyɛ mmerɛw a wɔde di dwuma no kɔɔ soro bɛyɛ mpɛn 1; 3 # formula of active zinc oxide dosage yɛ 1 pɛ # formula of ordinary zinc oxide dosage a ɛyɛ 80%, nanso 3 # formula rɔba curing ahoɔhare no da so ara yɛ ntɛmntɛm kɛse sen formula a rɔba l. 3 formulations of rubber coking properties, Menni viscosity no nyɛ nsonsonoe kɛse.
Sɔhwɛ formula vulcanized rɔba hardness, daa tensile nhyɛso, tensile ahoɔden ne tear ahoɔden sen production formula vulcanized rɔba nkɔso, ɔbrɛ resistance ne flexural adwumayɛ level yɛ ntotoho, ɔhyew ne mframa onyin adwumayɛ so tew kakra.
active zinc oxide mmom sen sɛ wɔde zinc oxide a ɛyɛ mmerɛw a wɔde di dwuma wɔ semi-steel radial tire inner ply rubber mu, curing rubber honam fam su ne di dwuma a ɛyɛ mmerɛw zinc oxide curing rubber level no yɛ nea wotumi de toto rɔba no ho, rɔba vulcanization ahoɔhare no yɛ ntɛmntɛm, a ɛyɛ papa sɛ ɛbɛma vulcanization bere no ayɛ tiaa. Zinc oxide a ɛyɛ adwuma a wɔde di dwuma no betumi atew zinc oxide dodow so, na ɛne nneɛma a atwa yɛn ho ahyia ho banbɔ ahwehwɛde ahorow hyia kɛse.
2. Zinc oxide a ɛyɛ adwuma a wɔde di dwuma wɔ radial tae tread rɔba mu
Bere a zinc oxide a ɛyɛ adwuma dodow akɔ soro no, TC10 ne TC90 nyinaa nyin. ML ne MH ansakra kɛse. Eyi kyerɛ sɛ wobetumi de zinc oxide a ɛyɛ adwuma adi dwuma wɔ dodow a wɔatew so.
Ahoɔden a ɛtwetwe, 100% elongation, 300% elongation ne tear ahoɔden a ɛwɔ rɔba no mu no ansakra kɛse bere a zinc oxide a ɛyɛ adwuma dodow kɔɔ soro no. Sɛ dodow no boro afã 5 a, vulcanized rubber no tear ahoɔden so tew inst ead, a efi crosslink density a ɛkɔ soro dodo no mu. Bere a obi abɔ akwakoraa ne aberewa wɔ 100 °C× 24h akyi no, rɔba aduru a ɛwɔ zinc oxide a ɛyɛ adwuma afã 3 no adwumayɛ a ɛkora so no yɛ nea eye sen biara, na nea ɛwɔ dodow afã 2.5 no yɛ nea enye koraa. Ebia nea enti a ɛte saa ne dodow a ɛyɛ 2.5 afã horow, vulcanized rɔba mesh nhyehyɛe no nyɛ pɛ, a ɛno nso da adi wɔ elongation koro no ara wɔ tete, daa deformation wɔ tete, Shore hardness, ne compression ɔhyew awo ntoatoaso adwumayɛ.
Addition of active zinc oxide rubber blend, TC10 ne TC90 kɛse tenten, minimum torque ML, maximum torque Mn ne nsonsonoe a ɛda abien MH a ML kɔ soro, kyerɛ sɛ ne processing ahobammɔ, vulcanization ahoɔhare brɛoo, degree of cross-linking nkɔanim, ne tensile ahoɔden, 100% fixed elongation, 300% fixed elongation ne tear ahoɔden no atu mpɔn, 100 °C × 24h onyin, nhwɛsode su ahorow a ɛwɔ retention rate no mu kɛse Afei onyin wɔ 100 °C × 24h, retention rate of specimen adwumayɛ no tu mpɔn kɛse. Sɛ wɔde zinc oxide a ɛyɛ adwuma no di dwuma wɔ dodow a wɔatew so a, TC90 - TS1 yɛ tiaa, ML ne MH nsakrae no nyɛ nea ɛho hia, na mfiridwuma mu su a ɛwɔ vulcanized rubber nsakrae no mu no nna adi; 2.5 afã horow a wɔde ma no, onyin a ɛko tia rɔba a wɔayɛ no vulcanized no so tew, enti wobetumi atew dodow no so akɔ dodow a wɔde bedi dwuma no afã horow 3.
Mfaso a ɛwɔ zinc oxide so
Ɛdenam nneɛma a ɛwɔ atifi hɔ no ho nhwehwɛmu so no, wobetumi ahu sɛ wobetumi de zinc oxide a ɛyɛ adwuma adi dwuma kɛse wɔ rɔba nneɛma ahorow mu.
(1) Ɛwɔ pete yiye wɔ rɔba nneɛma no mu, na wɔama honam fam ne mfiridwuma mu su ahorow atu mpɔn;
(2) Wɔ vulcanization nhyehyɛe no mu. Bere a rɔba ade no yɛ coke no yɛ tenten, ahobammɔ a ɛwɔ vulcanization mu no tu mpɔn, na vulcanization no yɛ adwuma yiye;
(3) Esiane sɛ zinc oxide ani kɛse ne nneɛma nketenkete a ɛwɔ soro nti a ɛyɛ adwuma no , wobetumi de adi dwuma kakraa bi wɔ rɔba nneɛma bi a wɔde aka ho mu.
