Latent Curing Accelerator

Ultra-micro latent PM2100 accelerator is a urea-modified product, which is perfectly compatible with epoxy resin. Epoxy resin one-component adhesives, sealing materials, potting materials and various powder coatings prepared with this accelerator are featured with the small dosage (2-5% of the resin), non-curing at the room temperature, over half year storage life at the room temperature (25 °C), quick curing (within 30 min) at 120-130 ℃. The detailed performance is shown in the following table:

1. Technical performance of the one-component potting material prepared with 2-3 % PM2100 accelerator (curing agent : accelerator = 5 : 1):

Curing conditions	Curing shrinkage	Volume resistivity	Breakdown voltage	Dielectric constant	Tangent of the dielectric loss angle	Shelf life
130 °C 30 min 150 °C 20 min	1 %	5×1,015 Ω cm	28 kv / mm	3.8	3×10-2	> 6 months

2. Comparison of the Performance of vehicle folding adhesives prepared with PM2100 accelerator and other accelerators:

Accelerator	Tertiary amine salt	Imidazole salt	A100 accelerator	Phenate	Amine salt
Gelation time T (160 ℃)	1 min 50 sec	1 min 4 sec	2 min 35 sec	8 min without gelation	8 min without gelation
Shear strength (Mpa) 160 ℃ 30 min	27	23.6	28

Remarks: PM2100 has higher activity, better storage conditions, and can meet more stringent environmental protection requirements than others.