1、Electron Beam

In this study, some polyethylene/graphene nanoplatelet (PE-GE) composites are successfully prepared via a melt-blending process used for thermally conductive pipes.

2、Crosslinked networks in electron beam irradiated polyethylenes

Irradiated crosslinked PE was the starting point for many jacketing compounds in cables and wires as well as for tubing and heat-shrinkable films. Crosslinked PE shows an enlarged dimensional stability during its exposure to heat due to the formation of a three-dimensional network.

3、12

If a semicrystalline polymer, such as polyethylene, is appro-priately fi lled with a conductive carbon black (CB) and radiation crosslinked, it will conduct current and act as a resistor between two parallel conductors.

4、Homogeneous radiation crosslinking of ultra

In order to obtain uniformly distributed crosslinking sites, ultra-high molecular weight polyethylene (UHMWPE) samples were crosslinked by electron beam (EB) irradiation in its molten state, and compared with crosslinking at room temperature.

Plastic upgrading through radiation crosslinking

In terms of quantity, the crosslinking of polyethylene (PE), polyamides (PA), thermoplastic elastomers (TPE) and polyvinyl chloride (PVC) is the most important. The use of biopolymers is also increasing. Bio-polyamides in particular have great potential for radiation crosslinking.

(PDF) Radiation

Radiation-initiated cross-linking polymerization of multifunctional monomers is an attractive method used for drying solvent-free liquid coatings, inks, and adhesive as well as for...

Radiation

In this study, high-density polyethylene (HDPE)/ethylene vinyl acetate (EVA)/polyurethane (PU) blends were prepared by radiation crosslinking to improve the thermal and mechanical properties of HDPE.

Radiation

In this study, high-density polyethylene (HDPE)/ethylene vinyl acetate (EVA)/polyurethane (PU) blends were prepared by radiation crosslinking to improve the thermal and mechanical properties of HDPE.

Material selection for the radiation crosslinking of plastics

All types of polyethylene (PE-HD, PE-LD, PE-UHMW, etc.) and their copolymers (EPDM, EVA) can be radiation crosslinked. As a semi-crystalline material, PE is essentially crosslinked in the amorphous areas – the degree of crystallization and density remain virtually unchanged.

The High Density Polyethylene Composite with Recycled

This article discusses the possibilities of using radiation cross-linked high density polyethylene (HDPEx) acting as a filler in the original high density polyethylene (HDPE) matrix.

Abstract: Radiation-crosslinked modified polyethylene (PE) is a high polymer material treated with radiation technology. Its core feature is the introduction of a crosslinked structure, which significantly improves the material's mechanical strength, heat resistance, and chemical stability. This paper introduces the basic principles, application fields, preparation methods, performance characteristics, and advantages of radiation-crosslinked modified PE, and explores its application prospects in current and future plastic industries.

1. Introduction Radiation-crosslinked modification is a novel polymer material modification technique that uses high-energy radiation (such as gamma rays or electron beams) to introduce crosslinking points into polymer chains, forming a three-dimensional network structure. This enhances the material's mechanical properties and durability. Compared to traditional physical or chemical crosslinking methods, radiation crosslinking offers advantages such as simplicity and strong controllability.

2. Basic Principles The radiation-crosslinking process involves two main steps: irradiation and crosslinking reaction. First, the polymer sample is exposed to irradiation in an accelerator, where the energy is sufficient to break C-H bonds in the macromolecular chains, generating free radicals. These free radicals then react with monomers or other reactive groups to form new chemical bonds, creating a crosslinked network.

3. Application Fields Radiation-crosslinked modified PE resin is widely used in various fields due to its excellent performance:

• Packaging Materials: Its superior impact resistance and chemical stability make it suitable for food and pharmaceutical packaging, ensuring product safety during transportation and storage.
• Wires and Cables: In cable manufacturing, it improves abrasion resistance and anti-aging properties, extending service life.
• Construction Materials: Used in pipelines, flooring, and roofing, it enhances load-bearing capacity and durability.
• Automotive Parts: As interior and exterior components, it provides better scratch resistance and weather resistance.
• Medical Devices: In surgical instruments and artificial joints, it offers improved biocompatibility and antibacterial properties.

4. Preparation Methods The preparation of radiation-crosslinked modified PE typically includes: a) Selecting appropriate monomers and initiators; b) Preparing prepolymers; c) Irradiation treatment; d) Post-treatment (e.g., crosslinking reactions, curing); e) Shaping and processing.

5. Performance Characteristics and Advantages Radiation-crosslinked modified PE offers the following advantages:

• Enhanced Mechanical Properties: The crosslinked network significantly improves tensile strength, flexural modulus, and hardness.
• Improved Heat Resistance: The material maintains physical integrity at high temperatures.
• Increased Chemical Stability: Crosslinking reduces molecular interactions, enhancing corrosion resistance.
• Environmental Friendliness: The radiation process is pollution-free and solvent-free, meeting eco-friendly standards.

With its unique physical and chemical properties, radiation-crosslinked modified PE demonstrates immense potential across numerous fields. As technology advances and costs decrease, its widespread adoption in the plastic industry is expected to grow.

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