Hydrogenation Process for Producing Light Petroleum Resins as Adhesive and Hot-Melt Components (Review)

Антонов, С. В.; Petrukhina, N. N.; Pakhmanova, O. A.; Максимов, А. Л.

doi:10.1134/s0965544117120027

Cited by 14 publications

(10 citation statements)

References 47 publications

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“…The most commonly applied are hydrocarbon resins due to their lower cost, reproducibility of properties, and a wide assortment that allows choosing a resin compatible with specific polymer base. [ 30 ] About 20% of the HMA composition are various additives, such as waxes, [ 31 ] plasticizers, [ 32 ] pigments, fillers, and antioxidants. [ 33 ] Plasticizers are introduced into polymer materials to improve the plasticity during processing and increase the elasticity in the operation as well as to make the formulations cheaper.…”

Section: Introductionmentioning

confidence: 99%

“…The most widely used block copolymers for producing HMAs are triblock copolymers of styrene either with isoprene or with butadiene, [ 7 ] which are characterized by relatively low energy of intermolecular interaction. Therefore, for obtaining HMAs based on them, it is advisable to use hydrogenated hydrocarbon resins, [ 30 ] which have lower rigidity and softening point as compared with unmodified ones. [ 38 ]…”

Section: Introductionmentioning

confidence: 99%

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Asphaltenes as a tackifier for hot‐melt adhesives based on the styrene‐isoprene‐styrene block copolymer

Ignatenko

Kostyuk

Смирнова

et al. 2020

Polymer Engineering & Sci

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The use of heavy crude oil asphaltenes and resins (termed asphaltenes) as the components of hot‐melt adhesives based on the styrene‐isoprene triblock copolymer was considered. The rheological, thermophysical, strength, and adhesive characteristics of the mixtures containing from 10 to 40 wt% of asphaltenes were studied. The addition of 10 to 20 wt% of asphaltenes enhanced the strength and adhesive properties of the mixtures and only slightly changed their rheology. The higher concentrations of asphaltenes reduced the viscosity of the mixtures but did not lead to improved characteristics of the adhesives. The ambiguous effect of asphaltenes is probably due to their uneven distribution between the microphases of the block copolymer as well as their ability to act both plasticizers and reinforcing particles depending on temperature. A comparison of asphaltenes and conventional tackifiers based on hydrocarbon resins revealed their comparable effect on the properties of the block copolymer.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Asphaltenes as a tackifier for hot‐melt adhesives based on the styrene‐isoprene‐styrene block copolymer

Ignatenko

Kostyuk

Смирнова

et al. 2020

Polymer Engineering & Sci

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“…Petroleum resin has good waterproof performance, satisfactory acid/alkali/salt resistance, and excellent viscoelasticity and is widely used as adhesive, plasticizer of rubber blend, thermoplastic coating, etc. , Hydrogenated petroleum resin has good photothermal stability, aging resistance, and weather resistance, overcoming the problems of high chromaticity, poor stability, and easy aging of traditional petroleum resin. It is a high-end modified product of petroleum resin. − …”

Section: Catalytic Hydrogenation Of Unsaturated Polymersmentioning

confidence: 99%

Advances in the Catalytic Hydrogenation and Properties of Unsaturated Polymers

Yan

Cao

2023

Macromolecules

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Polymer reaction and performance improvement are one of the important contents in the field of polymer materials science and engineering, in which polymer catalytic hydrogenation is an important part of polymer reaction. We reviewed the research achievements on polymer hydrogenation over the past 70 years and studied the mechanism of the hydrogenation reaction from the aspects of performance changes before and after polymer hydrogenation, the catalyst preparation/structure−activity relationship, and polymer hydrogenation kinetics. We pointed out the difficulty in separation and unsatisfactory high-temperature adaptability of traditional homogeneous catalysts and first proposed four effects affecting traditional heterogeneous polymer hydrogenation: scale effect, conformation effect, viscosity effect, and adhesion effect. Based on the structure−activity relationship of polymers, we put forward the application direction of hydrogenated polymers at present. We found that using a new kind of nanometal catalyst (Pd/CNTs@FN) as hydrogenation catalyst can effectively reduce or eliminate the negative effects of these four effects on the polymer hydrogenation reaction, and it is easy to separate from the reaction system. The addition of CNTs can effectively increase the specific surface area of the catalyst and strengthen the interaction between reactants and catalyst. Subsequent research should focus on designing the multiscale structure and improving low-temperature activity of the catalyst, reducing process cost, and using green and efficient separation methods to eliminate adverse effects, create a green and efficient polymer reaction system, accelerate the industrialization of polymer hydrogenation process, and provide theoretical guidance for the research and development of new polymer materials.

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“…The steady migration of these compounds from the interior to the surface of the rubber as it ages may be the cause of the increase in this peak. [33][34][35] To further analyze the influences of compressive stress and hydraulic oil on the degradation of the samples, the changes in the relative peak intensities of the alkyl ( C H) and carbonyl ( C O) groups of NBR-A and NBR-O under free and compression states are shown in Figure 6 using the peak intensity of the cyanide group ( CN) as the reference.…”

Section: Changes In Chemical Structurementioning

confidence: 99%

Accelerated aging behavior and degradation mechanism of nitrile rubber in thermal air and hydraulic oil environments

Wang

2023

Polymer Engineering & Sci

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The aging behavior and degradation mechanism of nitrile rubber (NBR) under free and compression states were investigated in simulated air and hydraulic oil environments at various elevated temperatures. The variations in the crosslinking density, volatile components and the chemical structure of NBR during aging were studied using equilibrium swelling testing and dynamic mechanical analysis (DMA), pyrolysis-gas chromatography-mass spectrometry and attenuated total reflection-Fourier transform infrared spectroscopy. The migration of additives in different media and the crosslinking density of NBR aged in different conditions were compared. The tensile strength, DMA, and thermogravimetric analysis results were consistent with the changes in the crosslinking density of NBR and the migration of additives. Four effects of the simulated hydraulic system on the thermal aging of NBR were examined. Both the compression stress and the oil medium slowed the aging of NBR. The results can provide new insights into the use of NBR products in lubricating oil environments and NBR lifespan prediction in hydraulic working conditions.

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Hydrogenation Process for Producing Light Petroleum Resins as Adhesive and Hot-Melt Components (Review)

Cited by 14 publications

References 47 publications

Asphaltenes as a tackifier for hot‐melt adhesives based on the styrene‐isoprene‐styrene block copolymer

Asphaltenes as a tackifier for hot‐melt adhesives based on the styrene‐isoprene‐styrene block copolymer

Advances in the Catalytic Hydrogenation and Properties of Unsaturated Polymers

Accelerated aging behavior and degradation mechanism of nitrile rubber in thermal air and hydraulic oil environments

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