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| How can probe tack of an SIS (styrene-isoprene-styrene) based pressure-sensitive adhesives (PSAs) be improved? |
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| Lab work has found that probe tack of SIS based PSAs is primarily a direct linear function of tackifier concentration (higher tackifier = higher probe tack) and inversely related (more oil = reduced probe tack) to plasticizing oil concentration. It should be noted that under these conditions, probe tack was found to behave inversely to rolling-ball tack |
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