Toughening of Petroleum Based (DGEBA) Epoxy Resins with Various Renewable Resources Based Flexible Chains for High Performance Applications: A Review

Kumar, Sudheer; Krishnan, Sukhila; Samal, Sushanta K.; Mohanty, Smita; Nayak, Sanjay K.

doi:10.1021/acs.iecr.7b04495

Cited by 127 publications

(73 citation statements)

References 117 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As we know, the BPA structure is classic for high‐performance epoxy resins, which can greatly enhance the cohesion energy. [ 34 ] These structure advantages render the P(DA‐ a ‐BGOP) alternating copolymers of excellent adhesive performance.…”

Section: Methodsmentioning

confidence: 99%

Mussel‐Inspired Alternating Copolymer as a High‐Performance Adhesive Material Both at Dry and Under‐Seawater Conditions

Sha

Zhang

et al. 2020

Macromol. Rapid Commun.

View full text Add to dashboard Cite

crosslinking [2,3] and metal ion chelation processes. [4,5] Thus, up to now, great efforts have been made to incorporate DOPA or catechol groups in a broad range of designed polymers to get mussel-inspired adhesives, which showed good bonding performances both at dry and underwater conditions. These polymers were generally named as "catecholfunctionalized polymers" (CFPs).Up to now, notable accomplishments have been achieved by using CFPs for high performance adhesion at atmospheric environment. Yu and Deming and co-workers reported the synthesis of DOPA-containing copolypeptides, exhibiting a bonding strength of 4.0 MPa on aluminum. [6] Wilker et al. synthesized poly[(3,4-dihydroxystyrene)-co-styrene] via anionic polymerization method, which achieved a bonding strength of 11 MPa on aluminum by using CaCO 3 particles as reinforcing materials. [7] Subsequently, they also incorporated the CFPs with poly(lactic acid) [8][9][10] or pendant oligo(ethylene glycol) moieties [4] to produce biodegradable/biocompatible adhesives with good dry-state bonding strength. Wan et al. synthesized catechol-functionalized poly(vinyl alcohol) via esterification reactions [11] and acetal formation reactions, [12] exhibiting bonding strengths of 4.0 MPa on glass and 14.9 MPa on stainless steel, respectively. Kaneko et al. synthesized a hyperbranched CFP via thermal polycondensation reaction between 3,4-dihydroxycinnamic acid and 4-hydroxycinnamic acid, which showed a bonding strength of ≈10 MPa on steel. [13] Then, they also prepared a similar hyperbranched polymer system with the bonding strength on steel up to 15 MPa. [14] However, despite great progress, the bonding strength of most reported CFPs on metal substrates is smaller than 15 MPa. Recently, Messersmith and co-workers [15] and Detrembleur and co-workers [16] separately reported the synthesis of catechol-functionalized polybenzoxazines and polyhydroxyurethanes, which were used to prepare thermoset adhesive materials with excellent bonding strength of 20.5 MPa on aluminum and 22.1 MPa on stainless steel, respectively. To our knowledge, these two polymers represent the best adhesive materials among CFPs for dry-state adhesion on metal Marine mussels have the ability to cling to various surfaces at wet or underwater conditions, which inspires the research of catechol-functionalized polymers (CFPs) to develop high-performance adhesive materials. However, these polymeric adhesives generally face the problems of complex synthetic route, and it is still high challenging to prepare CFPs with excellent adhesive performance both at dry and underwater conditions. Herein, a mussel-inspired alternating copolymer, poly(dopamine-alt-2,2-bis(4-glycidyloxyphenyl) propane) (P (DA-a-BGOP)), is synthesized in one step by using commercially available monomers through epoxy-amino click chemistry. The incorporation of polar groups and rigid bisphenol A structures into the polymer backbone enhances the cohesion energy of polymer matrix. The alternating polymer structure endows the polymers with high...

show abstract

Section: Methodsmentioning

confidence: 99%

Mussel‐Inspired Alternating Copolymer as a High‐Performance Adhesive Material Both at Dry and Under‐Seawater Conditions

Sha

Zhang

et al. 2020

Macromol. Rapid Commun.

View full text Add to dashboard Cite

show abstract

“…With the growing expansion of electrical equipment applications, the disadvantages of the Epoxy Resin (EP) insulating materials such as Diglycidyl Ether of Bisphenol A resin/Methyltetrahydrophthalic Anhydride (DGEBA/MTHPA) have become increasingly obvious. Some of the properties, including mechanical and thermal properties, are often not able to meet the ever-increasing requirements of electrical equipment [1,2,3,4]; while, the emergence of nanomaterials and the development of nanotechnology in recent years have provided new ways to improve the comprehensive properties of EP [5,6]. Compared with traditional materials, the distinguishing structure of nanomaterial has provided a set of unique features, such as the small size effect, quantum size effect and surface effect [7,8], which further enhance the performance in various aspects of physics and chemistry.…”

Section: Introductionmentioning

confidence: 99%

Micro-Structure and Thermomechanical Properties of Crosslinked Epoxy Composite Modified by Nano-SiO2: A Molecular Dynamics Simulation

Xie

Liang

et al. 2018

Polymers

View full text Add to dashboard Cite

Establishing the relationship among the composition, structure and property of the associated materials at the molecular level is of great significance to the rational design of high-performance electrical insulating Epoxy Resin (EP) and its composites. In this paper, the molecular models of pure Diglycidyl Ether of Bisphenol A resin/Methyltetrahydrophthalic Anhydride (DGEBA/MTHPA) and their nanocomposites containing nano-SiO 2 with different particle sizes were constructed. The effects of nano-SiO 2 dopants and the crosslinked structure on the micro-structure and thermomechanical properties were investigated using molecular dynamics simulations. The results show that the increase of crosslinking density enhances the thermal and mechanical properties of pure EP and EP nanocomposites. In addition, doping nano-SiO 2 particles into EP can effectively improve the properties, as well, and the effectiveness is closely related to the particle size of nano-SiO 2 . Moreover, the results indicate that the glass transition temperature (T g ) value increases with the decreasing particle size. Compared with pure EP, the T g value of the 6.5 Å composite model increases by 6.68%. On the contrary, the variation of the Coefficient of Thermal Expansion (CTE) in the glassy state demonstrates the opposite trend compared with T g . The CTE of the 10 Å composite model is the lowest, which is 7.70% less than that of pure EP. The mechanical properties first increase and then decrease with the decreasing particle size. Both the Young's modulus and shear modulus reach the maximum value at 7.6 Å, with noticeable increases by 12.60% and 8.72%, respectively compared to the pure EP. In addition, the thermal and mechanical properties are closely related to the Fraction of Free Volume (FFV) and Mean Squared Displacement (MSD). The crosslinking process and the nano-SiO 2 doping reduce the FFV and MSD value in the model, resulting in better thermal and mechanical properties.

show abstract

“…As one of the most widely used materials in coatings, adhesives, electrical and electronic insulation materials, and advanced composite substrates, epoxy resins, with excellent electrical insulation, corrosion resistance, and adhesiveness, have become important basic materials of advanced manufacturing industry in recent years . However, because most of epoxy resins have flammability, they do not meet the requirements of application.…”

Section: Introductionmentioning

confidence: 99%

Strengthen flame retardancy of epoxy thermoset by montmorillonite particles adhering phosphorus‐containing fragments

Liu

Qiu

Qian

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Phosphaphenanthrene derivative tri-(3-DOPO-2-hydroxypropan-1-yl)-1,3,5-triazine-2,4,6-trione (TGD) and organo-modified montmorillonite (OMMT) were jointly introduced into the diglycidyl ether of bisphenol A cured by 4,4-diamino-diphenylmethane (EP) to investigate their flame retardant behaviors. With only addition of 0.5%OMMT and 2.5%TGD, epoxy thermoset achieved a limiting oxygen index value of 33.7% and passed UL 94 V-0 rating test. Compared with the combustion behaviors of 3%OMMT/EP and 3%TGD/EP, an obvious synergistic flame retardant effect between OMMT and TGD can be concluded in OMMT/TGD/EP. Meanwhile, the FTIR spectra of gas-phase and condensed-phase products further proved this synergistic effect working in a physical way. On one hand, the co-existence of hydroxyl-containing TGD enabled montmorillonite (MMT) particles to filtrate and adhere more smoke fragments. On the other hand, the co-action of MMT help the polar phosphorus-containing fragments from TGD better strengthened char layer, enhancing the barrier and protective effect of residue. The synergistic flame retardant effect from OMMT/TGD system endowed themselves with higher flame retardant efficiency, and epoxy thermoset with better flame retardant performance.

show abstract

Toughening of Petroleum Based (DGEBA) Epoxy Resins with Various Renewable Resources Based Flexible Chains for High Performance Applications: A Review

Cited by 127 publications

References 117 publications

Mussel‐Inspired Alternating Copolymer as a High‐Performance Adhesive Material Both at Dry and Under‐Seawater Conditions

Mussel‐Inspired Alternating Copolymer as a High‐Performance Adhesive Material Both at Dry and Under‐Seawater Conditions

Micro-Structure and Thermomechanical Properties of Crosslinked Epoxy Composite Modified by Nano-SiO2: A Molecular Dynamics Simulation

Strengthen flame retardancy of epoxy thermoset by montmorillonite particles adhering phosphorus‐containing fragments

Contact Info

Product

Resources

About