Recent content by hoidap

please look at your application 1st, then find out what the material need to stand. Normally, peel strength should check. PET and Aluminum are quite different adherents, so 1 adhesive may not suitable but should have primer on surface 1st, then adhesive. priming just like attaching the same...

there are two kinds of diluents for epoxy, non-active just for dilution, active diluents not only diluting but joining the crosslink, Please try Benzyol Acohol, this is an active diluent

sandwich is light, and thick more suitable for compress and falling weight impact about bending, delamination or peeling of outer panel and core should be focus, so the adhesion between the sandwich play key role, this depends on the type of core. maybe using a sandwich is not really suitalbe...

please masticate BR and SBR to have a similar viscosity before blending them together. But too high viscosity rubber reduce shear force, decrease filler dispersion. Due to different structure, BR will hold more filler loading than SBR.

The boarder metling can be considered that starting point is sooner, and ending point is later. Crosslink density also plays a role here. Could we image that XHDPE is a blend of xHDPE and uncrosslink-HDPE, so the melt of uxHDPE responds to the heat in the same way, if its content is large...

normally, the use of virgin resin (same with compound but no additive) is rent to pruge

Not only Sulfur can bloom, but also the aid process agent; too much filler, or anti-stick agent to prevent rubber preform attaching each other. these chemical don't link to any rubber chain. For the case of sulfur, it is important to check the Rheometer curve, not fully cured or over-cured also...

HB Fuller has TPU primers and adhesive, which are solvent base or water-based , or HMMC - hotmelt moisture cure. Normally these primer donot need a UV to active. an EVA primer normally need that. DongSung also has TPU primer and adhesive, such TPU (90 shoreA) using as outsole.

Hello Demon3 I get it, the PS particles with the new PVA of 87-89% hydrolyzed, Thank Demon3.

Thank Demon3, PVA used is 341584 Aldrich Poly(vinyl alcohol) average Mw 89,000-98,000, 99+% hydrolyzed I am not really sure whether it is suitable. I need to keep on with PVA, thank you for your suggestions. Best regards

Dear members I am doing suspension polymerization of polystyrene, BPO is used as initiator (~1wt % of monomer) PVA as dispersed agent (0.4 -> 1wt% of water) monomer/water : 1/10 and 2/10 and 4/10 I tried to vary monomer/water ratio, PVA ratio, and i always fail to obtain the bead but an...