Controlling properties of acrylate/epoxy interpenetrating polymer networks by premature termination of radical polymerization of acrylate

Li, Wenlong; Delpouve, Nicolas; Araujo, Steven; Batteux, Florian; Bobo, Emilie; Saiter, Jean‐Marc; Tan, Li; Negahban, Mehrdad

doi:10.1002/pen.25173

Cited by 5 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The formed interpenetrating network benefited from much better thermomechanical properties in comparison to pristine thiol-ene networks [249]. Several other studies have been reported on the combination of radical and cationic photopolymerization to form IPNs using sequential curing [250,251]. Konuray et al applied this concept in 3D printable resin formulations and developed resin formulations with varying epoxy and acrylate monomers in different concentrations.…”

Section: Dual Curable Network (Photothermal Sequential Curing)mentioning

confidence: 99%

A Review of Multi-Material 3D Printing of Functional Materials via Vat Photopolymerization

2022

View full text Add to dashboard Cite

Additive manufacturing or 3D printing of materials is a prominent process technology which involves the fabrication of materials layer-by-layer or point-by-point in a subsequent manner. With recent advancements in additive manufacturing, the technology has excited a great potential for extension of simple designs to complex multi-material geometries. Vat photopolymerization is a subdivision of additive manufacturing which possesses many attractive features, including excellent printing resolution, high dimensional accuracy, low-cost manufacturing, and the ability to spatially control the material properties. However, the technology is currently limited by design strategies, material chemistries, and equipment limitations. This review aims to provide readers with a comprehensive comparison of different additive manufacturing technologies along with detailed knowledge on advances in multi-material vat photopolymerization technologies. Furthermore, we describe popular material chemistries both from the past and more recently, along with future prospects to address the material-related limitations of vat photopolymerization. Examples of the impressive multi-material capabilities inspired by nature which are applicable today in multiple areas of life are briefly presented in the applications section. Finally, we describe our point of view on the future prospects of 3D printed multi-material structures as well as on the way forward towards promising further advancements in vat photopolymerization.

show abstract

Section: Dual Curable Network (Photothermal Sequential Curing)mentioning

confidence: 99%

A Review of Multi-Material 3D Printing of Functional Materials via Vat Photopolymerization

2022

View full text Add to dashboard Cite

show abstract

“…This increase in thermal stability of hybrid epoxy was linked with the increase in molar mass between crosslinks, intermolecular interactions of HTTE/epoxy and crosslinked density [ 64 ]. Similarly, acrylate based epoxy system was used to toughen the epoxy resin (ECH) by varying the toughener content and the duration of UV exposure for curing [ 65 ]. The sequential IPN approach was used to prepare the modified epoxy system, i.e., the acrylate resin was partially photo-polymerized and then swollen by the epoxy resin followed by the complete curing to make IPN ( Figure 9 a).…”

Section: Ipn Based Epoxy Systems With Thermosetting Toughenersmentioning

confidence: 99%

“…The sequential IPN approach was used to prepare the modified epoxy system, i.e., the acrylate resin was partially photo-polymerized and then swollen by the epoxy resin followed by the complete curing to make IPN ( Figure 9 a). The nano-mechanical analysis showed that the elastic modulus of modified epoxy resin decreased from 715 to 16.7 MPa by increasing both acrylate content and UV exposure during curing ( Figure 9 b) [ 65 ].…”

Section: Ipn Based Epoxy Systems With Thermosetting Toughenersmentioning

confidence: 99%

Toughening of Epoxy Systems with Interpenetrating Polymer Network (IPN): A Review

2020

View full text Add to dashboard Cite

Epoxy resins are widely used for different commercial applications, particularly in the aerospace industry as matrix carbon fibre reinforced polymers composite. This is due to their excellent properties, i.e., ease of processing, low cost, superior mechanical, thermal and electrical properties. However, a pure epoxy system possesses some inherent shortcomings, such as brittleness and low elongation after cure, limiting performance of the composite. Several approaches to toughen epoxy systems have been explored, of which formation of the interpenetrating polymer network (IPN) has gained increasing attention. This methodology usually results in better mechanical properties (e.g., fracture toughness) of the modified epoxy system. Ideally, IPNs result in a synergistic combination of desirable properties of two different polymers, i.e., improved toughness comes from the toughener while thermosets are responsible for high service temperature. Three main parameters influence the mechanical response of IPN toughened systems: (i) the chemical structure of the constituents, (ii) the toughener content and finally and (iii) the type and scale of the resulting morphology. Various synthesis routes exist for the creation of IPN giving different means of control of the IPN structure and also offering different processing routes for making composites. The aim of this review is to provide an overview of the current state-of-the-art on toughening of epoxy matrix system through formation of IPN structure, either by using thermoplastics or thermosets. Moreover, the potential of IPN based epoxy systems is explored for the formation of composites particularly for aerospace applications.

show abstract

Fast Scanning Calorimetry

Schick

Androsch

2022

Thermal Analysis of Polymeric Materials

View full text Add to dashboard Cite

Controlling properties of acrylate/epoxy interpenetrating polymer networks by premature termination of radical polymerization of acrylate

Cited by 5 publications

References 28 publications

A Review of Multi-Material 3D Printing of Functional Materials via Vat Photopolymerization

A Review of Multi-Material 3D Printing of Functional Materials via Vat Photopolymerization

Toughening of Epoxy Systems with Interpenetrating Polymer Network (IPN): A Review

Fast Scanning Calorimetry

Contact Info

Product

Resources

About