Other Methods of Polymer Surface Modifications

Zheng, Han; Liu, Kui; Wang, Z.K.; Yuan, Song

doi:10.1016/b978-0-323-37468-2.00010-5

Cited by 3 publications

(5 citation statements)

References 32 publications

(34 reference statements)

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“…Laser beam is one of the special methods that enables altering polymer surfaces for better wettability using laser wavelengths that cause laser‐induced chemical bond modification 52,53 . The system use various interference laser beams that allows processing in submicron and nanorange 37 . One of the advantages of the method is that it allows localized treatment in any design patterns.…”

Section: Surface Treatment and Modification Techniques: Methods And Amentioning

confidence: 99%

“…One of the advantages of the method is that it allows localized treatment in any design patterns. Common types of the laser wavelengths are far‐infrared CO 2 and near infrared lasers that works in pulse durations ranging from femtosecond, nanosecond, millisecond and continuous‐wave lasers 37 . The femtosecond laser is reported to be most recent technology.…”

Section: Surface Treatment and Modification Techniques: Methods And Amentioning

confidence: 99%

“…Contact angle measurement of liquid droplets is a widely accepted method for surface analysis of polymeric materials related to surface energy, wettability, adhesion and absorption 34‐37 . The wetting and solid wettability is usually illustrated with a small liquid droplet resting on a flat horizontal solid surface, from which the angle at the three phases in contact can be determined 31,33 .…”

Section: Surface Energy Of Polymer Filmsmentioning

confidence: 99%

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Surface analysis of polymer films for wettability and ink adhesion

Aydemir

Altay

Akyol

2020

Color Research & Application

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The interaction between inks and substrates is critical during printing. Adhesion of the ink film is determined by the reciprocal interactions of polar and nonpolar (dispersive) components between polymer films and inks. The greater the similarity between the polar and dispersive components of inks, coating and substrates, the better the wetting and adhesion on the surface of printing substrate. Various liquid materials in printing such as inks, varnishes, lacquers, and adhesives contain high ratios of water. The highly polar nature of water makes the interaction of these materials unsuitable with predominantly disperse polymer surfaces. Some films with polyolefin structure, especially polypropylene, and polyethylene, are nonpolar and cannot form strong bonds with ink, varnish, or lacquer coatings due to their chemical structure. Increasing surface energy components overcomes the poor wetting and adhesion on polymer surfaces. In this review, the topics of water contact angle measurement and determination of surface energy, surface tension, and using sessile drop method for the wettability and ink adhesion of polymer films are surveyed. Information on structural and chemical processes was given that assists in obtaining wettable film surfaces. Recommendations were made for good adhesion and printability based on surface treatment methods and ink modification.

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Section: Surface Treatment and Modification Techniques: Methods And Amentioning

confidence: 99%

Section: Surface Treatment and Modification Techniques: Methods And Amentioning

confidence: 99%

Section: Surface Energy Of Polymer Filmsmentioning

confidence: 99%

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Surface analysis of polymer films for wettability and ink adhesion

Aydemir

Altay

Akyol

2020

Color Research & Application

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“…Laser-based methods for processing the surfaces of polymeric materials [ 1 , 2 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ], using radiation to generate heat effects, involve the melting of surface microareas, several micrometres in thickness, increasing roughness of the surface and removing its fragments, and if the process takes place in the presence of oxygen, surface oxidation also occurs. This method works for polyamides, polyesters and aramid materials, or for polyolefins and PTFE, if ultraviolet absorbers are introduced into them, since the coefficient of absorption of laser radiation by the surface of a polymeric material decides about the effectiveness of this technology.…”

Section: Theoretical Basesmentioning

confidence: 99%

The Efficiency of UV Picosecond Laser Processing in the Shaping of Surface Structures on Elastomers

2020

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Elastomers are used as construction materials in numerous industries, and in particular the biomedical industry, mechatronics, electronics, the automotive industry, and chemical devices. The paper presents the results of tests involving the effects of microprocessing of elastomeric materials using a UV laser emitting picosecond pulses. In particular, it presents an analysis of the influence of the parameters of processing on its efficiency. The paper provides a recommendation of the most advantageous processing parameters for materials such as polyurethane and silicone (MVQ). The authors see prospects for the use of the developed technology in the techniques of sealing and microfluidisation. The final part of the paper presents examples of surface structures generated on elements made of artificial materials and the results of tests involving reduction of friction resistance of sealing rings in a pneumatic actuator.

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“…affect the surface of the processed material. The use of various types of laser devices and thus various techniques for modifying the surface of light metal alloys and polymeric materials are presented in more detail in [40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Adhesive Joints with Laser Shaped Surface Microstructures

et al. 2021

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One of the most commonly applied methods of joining dissimilar materials is gluing. This could be mainly attributed to the applicability of this technique in various industries. The article presents a method of material surface treatment, which increases the shear strength of adhesive joints for lightweight metals such as aluminum with plastics. For this purpose, laser surface microstructuring was performed on each of the selected construction materials. As a result of the performed treatment, the active surface of the glued area was increased, which increased the adhesive strength. The picosecond laser with UV radiation used in the research is TruMicro 5325c with which material can be removed as a result of the cold ablation phenomenon. The applied parameters of the laser device did not cause thermal damage to the surface of the microstructured materials, which was confirmed by microscopic examination. Laser micromachining did not deteriorate the degree of wetting of the tested materials, either, as was confirmed by the contact angle and surface energy measurements with the use of water as the measuring liquid. In investigated cases of microstructure types, the presented method significantly increased the shear strength of the joints formed, as demonstrated by the presented strength test results. Research has shown that created joints with microstructure made according to the described method, are characterized by a significant increase in strength, up to 376%, compared to materials without microstructure. The presented results are part of a series of tests aimed at selecting the operating laser parameters for the implementation of geometric shapes of microstructures which will increase the strength of adhesive joints in selected materials.

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Other Methods of Polymer Surface Modifications

Cited by 3 publications

References 32 publications

Surface analysis of polymer films for wettability and ink adhesion

Surface analysis of polymer films for wettability and ink adhesion

The Efficiency of UV Picosecond Laser Processing in the Shaping of Surface Structures on Elastomers

Adhesive Joints with Laser Shaped Surface Microstructures

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