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Innovative Technologies Sought to Reduce the Weight and Improve the UV and Heat Resistance of Rotationally Moulded HDPE Parts

Summary

Profile Type
  • Technology request
POD Reference
TRLV20260720032
Term of Validity
20 July 2026 - 20 July 2027
Company's Country
  • Latvia
Type of partnership
  • Research and development cooperation agreement
  • Commercial agreement with technical assistance
Targeted Countries
  • All countries
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General information

Short Summary
A Latvian organisation is seeking research institutions, universities, technology centres, and industrial companies offering innovative solutions for reducing the weight of large rotationally moulded HDPE components while maintaining or improving their mechanical strength, durability and recyclability. Relevant solutions may include advanced HDPE blends, recycled-HDPE formulations, lightweight fillers, fibres, reinforcement meshes, multilayer structures, foamed-core systems, additives and other.
Full Description
A Latvian non-profit innovation and technology organisation is developing cooperation opportunities in the field of large rotationally moulded polymer products.
The organisation is interested in new materials, manufacturing approaches and structural solutions that can reduce the weight and material consumption of rotationally moulded HDPE parts without compromising their mechanical strength, durability or long-term performance.

The intended applications include large components for demanding outdoor and marine-related environments. The developed solutions may also be relevant to aquaculture, transport, infrastructure, agriculture, environmental technologies, energy systems and other sectors using large rotationally moulded products.
One of the principal technical challenges is the relatively high material consumption and weight of large rotationally moulded components. Reducing wall thickness alone can result in insufficient stiffness, reduced impact resistance, excessive deformation, lower creep resistance and limited long-term durability.

The organisation is therefore seeking innovative technologies that improve the strength-to-weight ratio of rotationally moulded products.

Potential solutions may include, but are not limited to:
* new virgin or recycled HDPE blends;
* modified polyethylene formulations;
* lightweight mineral, organic or recycled fillers;
* short- or long-fibre reinforcement;
* glass, basalt, carbon, natural or recycled fibres;
* internal reinforcement meshes or textile structures;
* embedded structural elements compatible with rotational moulding;
* multilayer rotational moulding;
* foamed-core or sandwich structures;
* chemical or physical foaming technologies;
* local reinforcement of highly loaded areas;
* structural ribs or integrated internal geometries;
* hybrid polymer structures;
* additives improving stiffness, impact resistance or creep performance;
* compatibilisers for recycled or mixed-polymer formulations;
* nanomaterials or functional additives;
* technologies enabling thinner but stronger walls;
* simulation and optimisation tools supporting lightweight component design.

The organisation is open to solutions based on HDPE and to compatible polymer systems that can be processed by rotational moulding or integrated into rotationally moulded products.
Particular interest is placed on solutions compatible with recycled HDPE, including technologies that compensate for the variability, degradation or lower mechanical performance often associated with recycled feedstock.

The intended components may be exposed to prolonged outdoor use, direct sunlight, elevated temperatures, humidity, saltwater and continuous mechanical loading.

The organisation is therefore is also seeking technologies that improve:
* resistance to ultraviolet radiation;
* retention of tensile, flexural and impact properties after UV exposure;
* colour and surface stability;
* resistance to oxidation and embrittlement;
* dimensional stability at elevated temperatures;
* creep resistance under sustained loads;
* resistance to thermal cycling;
* resistance to combined UV, heat, humidity and saltwater exposure;
* long-term durability in Mediterranean, tropical and other hot-climate environments.

The organisation is particularly interested in technologies that address the combined effects of UV radiation, elevated surface temperature, environmental exposure and mechanical loading.
Technical Specification or Expertise Sought
he sought technology should have reached at least TRL 4, meaning that the concept has been validated in a laboratory environment.

The proposed solution should address one or more of the following challenges:
* reduction of component weight;
* reduction of HDPE material consumption;
* improvement of stiffness-to-weight ratio;
* improvement of tensile, flexural or impact properties;
* improved creep resistance;
* reinforcement of large unsupported surfaces;
* improved dimensional stability;
* improved performance of recycled HDPE;
* reduced deformation in hot climates;
* improved UV resistance;
* improved resistance to ageing and embrittlement;
* improved long-term outdoor performance;
* development of multilayer or sandwich structures;
* development of reinforced or foamed rotationally moulded parts;
* compatibility with industrial rotational moulding processes.

The technology should be supported by available evidence such as:
* laboratory test results;
* prototype samples;
* material data sheets;
* accelerated ageing results;
* mechanical testing results;
* proof-of-concept demonstrators;
* pilot applications;
* patents or protected know-how;
* scientific publications;
* technical validation reports.

Technologies existing only as theoretical concepts, without laboratory validation, are outside the scope of the request.
Stage of Development
  • Lab tested
Sustainable Development Goals
  • Goal 9: Industry, Innovation and Infrastructure

Partner Sought

Expected Role of a Partner
The selected partner is expected to contribute to the development, adaptation, testing and validation of the proposed technology.

Depending on the nature and maturity of the solution, the partner may:
* provide the innovative material, additive, reinforcement or structural concept;
* adapt the technology to rotational moulding;
* define suitable material formulations and processing conditions;
* develop laboratory samples and prototype components;
* participate in pilot-scale rotational moulding trials;
* support mechanical, thermal and environmental testing;
* evaluate UV and hot-climate performance;
* optimise the solution based on test results;
* contribute to industrial-scale demonstration;
* provide technical specifications and processing guidelines;
* support commercialisation and industrial scale-up.

The detailed division of tasks will be agreed according to the proposed technology and the capabilities of the partner.
Type and Size of Partner
  • SME 50 - 249
  • SME 11-49
  • SME <=10
  • Big company
  • Other
  • R&D Institution
  • University
Type of partnership
  • Research and development cooperation agreement
  • Commercial agreement with technical assistance

Dissemination

Technology keywords
  • 02007005 - Composite materials
  • 02007014 - Plastics, Polymers
Market keywords
  • 08001001 - Plastic fabricators
  • 08001018 - Polymer (plastics) materials
  • 08001005 - Other fabricated plastics
Targeted countries
  • All countries