Name: 1,1-Bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane (CH335)
Brand: LAAP
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Question 1

What is the 10-hour half-life temperature of CH335 (CAS 6731-36-8)?

Accepted Answer

The 10-hour half-life temperature of CH335 (1,1-Bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane, CAS 6731-36-8) is 90°C. The 1-hour half-life is approximately 109°C. Its controlled decomposition profile makes CH335 an ideal EPS (expandable polystyrene) polymerization initiator and a crosslinking agent for polyethylene and EVA at 120–160°C processing temperatures.

Question 2

What is CH335 (CAS 6731-36-8) used for in EPS and polyolefin production?

Accepted Answer

CH335 (1,1-Bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane, CAS 6731-36-8) is a bifunctional ketone peroxide used primarily as: (1) A polymerization initiator for EPS (expandable polystyrene) suspension processes; (2) A crosslinking agent for LDPE, LLDPE, and EVA; (3) A curing initiator for acrylic resins. The 3,3,5-trimethylcyclohexane backbone provides excellent thermal stability and scorch resistance. Also known as Trigonox 29 (Nouryon) or Luperox 231 (Arkema).

1,1-Bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane (CH335)

Physikalische Eigenschaften

Halbwertzeit-Daten (Zerfallstemperatur / Starttemperatur)

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