Transforming waste to treasure: Superhydrophobic coatings from recycled polypropylene for high-value application

Wang, Xiaotong; Liang, Yifan; Pu, Zhichen; He, Jian; Yang, Shuangqiao

doi:10.1016/j.porgcoat.2024.108248

Cited by 5 publications

(1 citation statement)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solid-state shear milling (S 3 M), a technology based on our self-designed pan-milling equipment [15], has been well developed in our laboratory for many years. This technology has been successfully adopted to achieve the preparation of highly filled polymer composites [16], ultrafine grinding of polymer/inorganic micro-nano composites [17,18], and recycling of wasted polymers [19,20]. The oppositely inlaid twin mill-pans of the above-mentioned pan-milling equipment can act as three-dimensional scissors during panmilling, which could exert very strong compression, shear, and hoop stretching stresses for pulverization, dispersion, mixing, and mechanochemical activation on the milled materials.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polyoxymethylene/Exfoliated Molybdenum Disulfide Nanocomposite through Solid-State Shear Milling

Feng,

Zhou,

Yang

et al. 2024

Polymers

View full text Add to dashboard Cite

In this paper, the solid-state shear milling (S3M) strategy featuring a very strong three-dimensional shear stress field was adopted to prepare the high-performance polyoxymethylene (POM)/molybdenum disulfide (MoS2) functional nanocomposite. The transmission electron microscope and Raman measurement results confirmed that the bulk MoS2 particle was successfully exfoliated into few-layer MoS2 nanoplatelets by the above simple S3M physical method. The polarized optical microscope (PLM) observation indicated the pan-milled nanoscale MoS2 particles presented a better dispersion performance in the POM matrix. The results of the tribological test indicated that the incorporation of MoS2 could substantially improve the wear resistance performance of POM. Moreover, the pan-milled exfoliated MoS2 nanosheets could further substantially decrease the friction coefficient of POM. Scanning electron microscope observations on the worn scar revealed the tribological mechanism of the POM/MoS2 nanocomposite prepared by solid-state shear milling. The tensile test results showed that the pan-milled POM/MoS2 nanocomposite has much higher elongation at break than the conventionally melt-compounded material. The solid-state shear milling strategy shows a promising prospect in the preparation of functional nanocomposite with excellent comprehensive performance at a large scale.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation of Polyoxymethylene/Exfoliated Molybdenum Disulfide Nanocomposite through Solid-State Shear Milling

Feng,

Zhou,

Yang

et al. 2024

Polymers

View full text Add to dashboard Cite

show abstract

Toward flexible electronics: A novel polyurethane integrating self‐healing, UV‐protective, reprocessable, and degradable properties

Feng,

Wang,

Dai

et al. 2024

Polymers for Advanced Techs

View full text Add to dashboard Cite

Flexible electronics are striving in modern society, and they impose harsh and urgent requirements for flexibility on electronic package substrates. However, traditional materials, including ceramics, metals, or polymers are lack of flexibility. Herein, a polyurethane named PU‐D1Q1VF1 is proposed via incorporating carefully selected biobased units and synergistic dynamic bonds, and the PU‐D1Q1VF1 not only meets the basic requirements of flexibility but also possesses properties of self‐heal, UV‐protection, reprocessability, and degradability. The polycaprolactone diol (PCL diol) was employed as the soft segment, and the bis(2‐hydroxyethyl) disulfide (HEDS) and lignin derived model monomer hydroquinone were selected as chain extenders. Moreover, carefully synthesized bio‐based monomer (E)‐4‐(((furan‐2‐ylmethyl)imino)methyl)‐2‐methoxyphenol (VF) was used as the capping agent, which could facilitate the self‐healing process of the PU‐D1Q1VF1.

show abstract

Unique polymer‐based composite coating with high anti‐corrosion characteristics and functional fillers

Kydyraliyeva,

Beisenbaev,

Nadirov

et al. 2024

Polymer Engineering & Sci

View full text Add to dashboard Cite

The objective of this research is to develop a composite polymer coating with increased thermal conductivity and corrosion resistance for protecting structural materials in heat exchange apparatuses. Chemically pure compounds such as graphene, boron nitride, tyrosine, sodium hydroxide, zinc pyrophosphate, ethyl acetate, and epoxy resin with the addition of secondary polypropylene were utilized as raw materials. The obtained coatings were evaluated using an emission scanning microscope equipped with an energy‐dispersive spectroscopy (EDS) detector. Electrochemical activity was measured using standard equipment within a frequency range of 0.1–0.01 Hz. Thermal conductivity and corrosion resistance were measured at 0.24 W/m K and 9.70 Ω/cm2 when using only epoxy resin with the addition of secondary polypropylene. When employing a composite consisting of epoxy resin with the addition of secondary polypropylene, boron nitride, graphene, tyrosine, and zinc pyrophosphate, the thermal conductivity and corrosion resistance values were 1.65 W/m K and 11.10 Ω/cm2, respectively. Polymer coatings containing 30% composite demonstrated the highest thermal conductivity (1.65 W/m K) and corrosion resistance (11.20 Ω/cm2). The research findings can be utilized to create polymer coatings with enhanced thermal conductivity and corrosion resistance values. This polymer coatings could serve as structural materials for heat exchange devices.Highlights Corrosion resistance increase with complexing of composite coating. Thermal conductivity increase with complexing of composite coating. Use of epoxy resin with secondary polypropylene make thermal conductivity value.

show abstract

Transforming waste to treasure: Superhydrophobic coatings from recycled polypropylene for high-value application

Cited by 5 publications

References 39 publications

Preparation of Polyoxymethylene/Exfoliated Molybdenum Disulfide Nanocomposite through Solid-State Shear Milling

Preparation of Polyoxymethylene/Exfoliated Molybdenum Disulfide Nanocomposite through Solid-State Shear Milling

Toward flexible electronics: A novel polyurethane integrating self‐healing, UV‐protective, reprocessable, and degradable properties

Unique polymer‐based composite coating with high anti‐corrosion characteristics and functional fillers

Contact Info

Product

Resources

About