Dimethylethylamine - What does dimethylethylamine stand for? The Free Dictionary
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The cure chemistry of the new system involves the reaction of a specialty polymer with an initiator in the presence of a tertiary amine catalyst, such as triethylamine (TEA), dimethylethylamine (DMEA) or dimethylpropylamine (DMPA).
24-hr Lab Bench Life Tensile Performance Ranges of Isomax Tensile Measurement (time) New System (psi) PUCB(psi) Immediate (30 sec) 150-290 0-80 5 min 170-310 0-120 1 hr 190-340 0-140 24 hr 240-380 0-160 24 hr @ 90% RH 100-230 0-80 Hot core wash 60-110 0-40 Cold core wash 200-350 0-130 Sand type: 55 AFS silica sand Catalyst: Dimethylethylamine (DMEA) Blinder level: 1.
With some changes in corebox design, blowing and venting techniques and sand adjustments, plus a new gas, dimethylethylamine
(DMEA) that reduced the curing time by a factor of three, the coldbox coremaking system began to attract foundry industry attention.