Aging inhibitor RD and 4020 and 4010NA are the largest aging inhibitor in the rubber industry, accounting for 80% of the total production.RD is more prominent in the tire industry.RD is different from other antiaging agents in that its chemical components are complex mixtures and there is no national standard for the content of active ingredients.For a long time, the national standard method of RD is only:
1 kamap,
2. paia i hatim
3 asis,
4 softing point, olgeta dispela tes data indeks i no inap tru long tok klia long RD intanel efektiv konten, i kamap tu long stap olsem ilegal manifakta i yusim ol hul bilong profit draiv, bikos planti bilong ol resin (inkludim sintetik o naturela resin) i gat wankain kala lukluk, sapos yusim nesenel standet tes, ol risal i kwalifai, o moa gutpela moa long trupela RD eksperimen data{1}W.
Long ol stadi na planti wok bilong traim, ol i painim ol dispela hevi:
1. Hap samting bilong mekim pasin pamuk
2. ful giaman (ful resin giaman)
3. Fopela resin ol i bin mekim ol i no laikim ol i bin painim
4. The quality of RD effective content is uneven.(RD valid content mainly of dimer, trimer and four polymers, which plays a main role dimers, we believe that the domestic RD dimer content greater than 25% even if good, many factory didn't reach, so we have to quote buyer total effective content (two, three, four polymers added together, appear very high), actually dimer is very low, only some Ol tineja (we olgeta i mas lukluk gut long).}} samting tu, taim ol i givim wok long nomol painim wanpela brens long skelim gutpela konten, i mas kwalitativ pastaim, sapos giaman, ol i no laikim gen kwantitetiv, kwantitetiv tu i tambuim, risal i ken misjudge.
Dispela em ol hevi na ekspiriens mipela i bin bungim long praktikel wok bilong mipela. Mi hop ol i gutpela long yu.E Eksampel, RD giaman, dispela em i piksa bilong tripela tes tiub (lephan long raithan),
Adulteresen (wantaim samting i no inap lus),
Ol i daunim (wantaim ol samting i no inap lus),
Atikol tru (ol i rausim long solvent).
Tok lukaut: olsem i gat ol nupela samting ol i no save gut long en, sampela taim solvent rot bai i no luksave long painim, mipela i bin yusim ol analitik instramen long luksave long trupela.