Polyethylene (PE) / XLPE

Illustrated explanation

Polymer structure influences behaviour without setting a complete rating

5Polyethylene (PE) / XLPE
Polymer structure influences behaviour without setting a complete ratingCallout 1: Cross-linking. Callout 2: Ordered / disordered. Callout 3: Plasticizer effect. Callout 4: Fibre reinforcement. Callout 5: PE / cross-linked PE. Callout 6: Directional response. Links between chains, ordered regions, additives and fibre orientation alter a polymer’s response. Their effect depends on the actual formulation and processing. Current term: Polyethylene (PE) / XLPE, callout 5. 1Cross-linking 2Ordered / disordered 3Plasticizer effect 4Fibre reinforcement 5PEXLPEPE / cross-linked PE 6Directional response
  1. Cross-linking

    Connections between chains create a network. The actual cure, formulation and environment determine the resulting material response.

  2. Crystallinity

    Ordered regions differ from disordered chain arrangements. Crystallinity describes a structure, not a universal performance advantage.

  3. Plasticizer / plasticization

    The added molecules alter the formulation’s mobility and response. Compatibility and possible migration require the actual material data.

  4. Glass-fiber reinforcement

    Reinforcing fibres sit within the polymer matrix. Fibre content and orientation affect strength, processing and dimensional response.

  5. Polyethylene (PE) / XLPEThis term

    PE and cross-linked PE have different network structures. The cable material designation must be read with its actual compounded grade and specification.

  6. Anisotropy

    Material response can differ with direction. Match the test direction and loading direction when comparing specifications.

Links between chains, ordered regions, additives and fibre orientation alter a polymer’s response. Their effect depends on the actual formulation and processing.

Highly enlarged conceptual molecular and fibre sketches, not material micrographs or property data. No resin grade or resistance ranking is assigned.