Polymer Matrix: Density 0.941-0.965 g/cm³

Component Specifications

Definition

In High-Density Polyethylene (HDPE) resin systems, the polymer matrix refers to the thermoplastic polymer phase that forms the continuous structural network. This matrix provides the bulk properties of the material, including chemical resistance, thermal stability, and mechanical strength, while embedding and protecting any fillers or reinforcements. It determines the processing characteristics, environmental resistance, and overall performance of the final HDPE product.

Working Principle

The polymer matrix functions by forming a continuous, three-dimensional network of polymer chains through intermolecular forces and entanglement. In HDPE, this involves linear polyethylene chains with minimal branching, creating a dense, crystalline structure that provides strength and rigidity. The matrix transfers mechanical stresses throughout the material, protects embedded components from environmental degradation, and determines the material's viscoelastic behavior under load.

Materials

High-Density Polyethylene (HDPE) polymer with density range 0.941-0.965 g/cm³, melt flow index 0.1-20 g/10min, crystallinity 60-80%, molecular weight 50, 000-250, 000 g/mol, containing antioxidants, UV stabilizers, and processing aids as required.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Density	0.941-0.965 g/cm³
Melting Point	120-140°C
Impact Strength	20-200 J/m (Izod)
Melt Flow Index	0.1-20 g/10min (190°C/2.16kg)
Flexural Modulus	0.8-1.5 GPa
Tensile Strength	20-37 MPa
Chemical Resistance	Excellent to acids, alkalis, solvents
Vicat Softening Point	120-130°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 1872-2, ISO 1133, ISO 527, ASTM D638, DIN 16776

Parent Products

This component is used in the following industrial products

High-Density Polyethylene (HDPE) Resin

High-Density Polyethylene (HDPE) resin is a versatile thermoplastic material manufactured through catalytic polymerization of ethylene under low pressure.

View Product Details

Engineering Analysis

Risks & Mitigation

Thermal degradation during processing
Environmental stress cracking
UV degradation without stabilizers
Contamination from improper handling
Inconsistent molecular weight distribution

FMEA Triads

Trigger: Excessive shear heating during extrusion
Failure: Polymer chain scission and molecular weight reduction
Mitigation: Implement temperature control systems, optimize screw design, use thermal stabilizers

Trigger: Inadequate antioxidant package
Failure: Oxidative degradation during processing and service life
Mitigation: Formulate with appropriate antioxidant systems, implement quality control testing

Trigger: Moisture contamination in raw material
Failure: Void formation and reduced mechanical properties
Mitigation: Implement drying procedures, use moisture barriers in storage

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.003 g/cm³ density variation, ±10% MFI variation, ±5% mechanical property variation from nominal specifications

Test Method

ISO 1872-2 for material classification, ISO 1133 for melt flow rate, ISO 527 for tensile properties, ISO 179 for impact strength

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Polymer Matrix

Manufacturer profiles associated with Polymer Matrix.

Sourcing Polymer Matrix from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Sealant Layer

Sealant layer in multi-layer co-extruded barrier films for hermetic sealing and product protection.

Tie Layer

Tie layer is a bonding component in multi-layer co-extruded barrier films that ensures adhesion between incompatible polymer layers.

Mold Release Coating

Specialized coating applied to molds to facilitate easy release of silicone seal rings during manufacturing.

Silicone Polymer Base

Silicone polymer base is a high-temperature resistant polymer material used as the foundational component in silicone rubber compounds for industrial applications.

Frequently Asked Questions

What is the primary function of the polymer matrix in HDPE resin?

The polymer matrix provides the continuous structural phase that determines mechanical properties, chemical resistance, and processing characteristics while protecting any embedded reinforcements or additives.

How does HDPE polymer matrix differ from other polyethylene matrices?

HDPE matrix has higher density, greater crystallinity, and fewer chain branches compared to LDPE or LLDPE, resulting in superior strength, stiffness, and chemical resistance.

What factors affect the performance of HDPE polymer matrix?

Molecular weight distribution, crystallinity level, additive package, processing conditions, and environmental exposure all significantly impact matrix performance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Polymer Matrix