Bio-based TPE

The global push for circular economies and carbon neutrality has accelerated the transition from fossil-derived polymers to bio-based alternatives. Among these innovations, bio-based thermoplastic elastomers (Bio-TPE) emerge as a critical enabler, merging the elasticity of traditional rubbers with the recyclability of thermoplastics. Unlike petroleum-based TPEs, which rely on non-renewable resources and generate persistent microplastics, Bio-TPEs are synthesized from renewable feedstocks such as plant oils, starches, and agricultural waste. This shift reduces reliance on finite resources, cuts greenhouse gas emissions by 40–60%, and aligns with global sustainability frameworks like the Paris Agreement and the UN Sustainable Development Goals (SDGs).

Scientific advancements have overcome early limitations in Bio-TPE performance. For instance, δ-valerolactone (δVL)-based polyester tri-block copolymers (tri-BCPs) now exhibit 2.5–3.8 times higher toughness than commercial polyolefin-based TPEs while maintaining 100% chemical recyclability. These materials self-assemble into nanoscale cylindrical structures during crystallization, enhancing mechanical properties without compromising sustainability. Such breakthroughs position Bio-TPEs as viable alternatives for high-performance applications, from automotive components to biomedical devices.

Molecular Engineering: Designing Bio-TPEs for Next-Generation Applications

The structural versatility of Bio-TPEs stems from their block copolymer architecture, where hard (crystalline) and soft (amorphous) segments are chemically linked. This design enables tunable properties, such as elasticity, thermal stability, and chemical resistance, by adjusting monomer ratios and processing conditions.

Monomer Innovation: From Nature to Nanoscale

Bio-TPEs leverage bio-derived monomers to replace petroleum-based counterparts:

Dynamic Vulcanization: Reversible Crosslinking for Recyclability

Traditional TPEs suffer from irreversible crosslinking during processing, limiting their recyclability. Bio-TPEs address this through dynamic vulcanization, where crosslinks are formed via reversible covalent bonds (e.g., disulfide or Diels-Alder linkages). This allows materials to be reprocessed multiple times without performance degradation, enabling closed-loop recycling systems. For example, δVL-based tri-BCPs undergo 100% depolymerization into monomers under mild conditions, supporting infinite recycling cycles.

Performance Benchmarks: Bio-TPEs vs. Conventional Materials

Mechanical Robustness

Early Bio-TPEs faced criticism for inferior strength compared to petroleum-based versions. However, recent formulations have shattered these barriers:

  • High-performance polyester TPEs: Incorporating 2,5-FDCA yields materials with comparable heat resistance (up to 150°C) and oil resistance to commercial polybutylene terephthalate (PBT), while reducing emissions by 40%.
  • Nanocomposite Bio-TPEs: CNC-reinforced variants achieve 1.5–7 times higher tensile strength than silicone, making them ideal for load-bearing applications like automotive seals and biomedical implants.

Thermal and Chemical Stability

Bio-TPEs exhibit remarkable stability under extreme conditions:

  • Thermal endurance: Polyester-based Bio-TPEs maintain integrity at temperatures exceeding 120°C, rivaling petroleum-based TPCs (thermoplastic copolyesters).
  • Chemical resistance: Materials synthesized from bio-propylene glycol (Bio-PDO) resist hydrolysis and oxidation, ensuring longevity in automotive fluids and industrial solvents.

Environmental Impact Assessment

Life cycle analysis (LCA) confirms the ecological advantages of Bio-TPEs:

  • Carbon footprint: Producing 1 kg of Bio-TPE emits 3.2 kg CO2eq, compared to 7.8 kg CO2eq for petroleum-based TPEs.
  • Biodegradability: Certain Bio-TPEs degrade within 6–12 months in industrial composting facilities, unlike conventional plastics that persist for centuries.

Our Products

Bio-based thermoplastic elastomers (TPE) are a class of elastomers made from bio-based materials, which usually have the characteristics of elasticity, durability and renewability. The TPE materials we can provide have a bio-renewable content base ratio ranging from 22% to 75%, with different hardness levels, good performance retention, UV resistance and flame retardancy, which are comparable to traditional TPE.

Advantages

Bio-based TPE Property of Renewability

Renewability

Since its raw materials come from natural resources, it has reduced its dependence on non-renewable resources such as petroleum to a certain extent.

Bio-based TPE Property of Environmentally friendly

Environmentally friendly

Bio-based materials generally have a lower carbon footprint, and their biodegradability makes them easier to handle after use, helping to reduce environmental pollution.

Bio-based TPE Property of Good physical properties

Good physical properties

Bio-based elastomers can adjust their properties as needed to meet different application requirements, such as wear resistance, weather resistance, etc.

Features

Applications

These materials are used in many fields, including medical devices, automotive industry, consumer products, and household products. With the advancement of technology, the research and development and application of bio-based elastomers are still expanding, and they may play a more important role in sustainable development in the future.

Catalog Number Product Name Order Quantity
BT-7792 TPE020-2516 Inquiry cart
BT-7793 TPE020-2517 Inquiry cart
BT-7794 TPE020-2518 Inquiry cart
BT-7795 TPE020-2519 Inquiry cart
BT-7796 TPE020-2520 Inquiry cart
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BT-7798 TPE020-2522 Inquiry cart

Our products and services are for research use only and cannot be used for any clinical purposes.

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