1、Synthesis and properties of UV
Three kinds of bio-based polyester diols with different chain lengths, including polylactide diol (PLA-D), poly (ε-caprolactone) diol (PCL-D) and poly (ε-caprolactone-co-lactide) diol (PCLA-D), were synthesized by controlled ring-opening polymerization (ROP).
2、Modified Polyester Resins for UV Applications
Modified polyester resins are polymers enhanced with ultraviolet (UV) absorbers and light stabilizers. The incorporation of these functional additives significantly improves their performance under UV irradiation.
3、Synthesis of Bio
Herein, we present a simple synthesis route for bio-based acrylate-modified polyester resins, whose viscosity is sufficiently low for processing them with vat photopolymerization 3D printing.
4、Synthesis of UV
Herein, polyesters with lateral double bonds were prepared by ring-opening polymerization of acid anhydride and glycidyl methacrylate. The epoxy compound without vinyl groups was used to participate in the polymerization reaction to adjust the viscosity and vinyl functionality of the resin.
Highly Bio‐Based Unsaturated Polyester Resins with Improved Performance
Herein, the successful design of a highly bio-based family of unsaturated polyester resins (UPRs) is presented, comprising of an isosorbide (ISO) incorporated unsaturated polyester prepolymer (UP) and a reactive diluent of 4-vinylguaiacol acetyl ester (ACVG).
Acrylic acid modified polyester polyol resin
LR-6363 is combining the advantages of polyester resin leveling, fullness, dispersibility and acrylic resin fast drying, weather ability, chemical resistance and other characteristics, included excellent pigment dispersion and suspension, recommended for 2KPU high gloss, high Fresh finish.
Bio
In this study, bio-based polyester-based polyurethane acrylate (PUA) was synthesized from castor oil glycidyl ether (COGE) via three-step process. First, acrylate polyester polyol (APEP) was synthesized by ring opening reaction of COGE with acrylic acid.
Composition–property engineering of bio
This study focuses on developing and characterizing bio-based polyester UV-curable resins with tunable mechanical properties optimized for MPSL.
Development of bio
A novel UV-curable hyperbranched polyester-urethane-acrylate (PUA) resin was successfully synthesized using citric acid as a core bio-based material and ester-urethane-acrylate linkage as the arm and was applied on both wood and metal substrates.
Bio
In this study, bio-based polyester-based polyurethane acrylate (PUA) was synthesized from castor oil glycidyl ether (COGE) via three-step process. First, acrylate polyester polyol (APEP) was synthesized by ring opening reaction of COGE with acrylic acid.
In the field of modern material science, UV resins, as an important class of photocurable materials, have been widely utilized due to their excellent properties. traditional UV resins often suffer from poor weather resistance and insufficient toughness, which limit their applications in outdoor decorations and construction. To address these issues, researchers have begun exploring modification methods to enhance the performance of polyester polyol-modified UV resins. As an innovative material, polyester polyol-modified UV resin is gradually becoming a research focus due to its superior physical and chemical properties.
Polyester polyol, a high-molecular-weight compound containing multiple hydroxyl functional groups, exhibits high reactivity. By combining it with UV resin, its weather resistance and mechanical strength can be significantly improved. This modification process involves various chemical reactions, such as free radical polymerization and click chemistry reactions, which effectively incorporate the functional groups of polyester polyol into the molecular structure of the UV resin, forming a new cross-linked network.
The modified UV resin demonstrates enhanced weather resistance. The introduction of polyester polyol increases the number of polar groups in the molecular chains, thereby improving the resin’s ability to absorb ultraviolet (UV) light. Under UV irradiation, these groups absorb energy and convert it into heat, effectively reducing the rate of photodegradation. Additionally, polyester polyol improves the resin’s water resistance and anti-pollution properties, making it more suitable for outdoor applications.
Beyond weather resistance, the modified UV resin also exhibits higher mechanical strength. By adjusting the ratio of polyester polyol to UV resin, the hardness and flexibility of the resin can be precisely controlled. While maintaining excellent weather resistance, the modified UV resin provides sufficient elasticity and impact resistance when subjected to external forces—a critical property for outdoor decorative materials. For example, in the fabrication of outdoor billboards or pavement materials, the material must not only have strong adhesion but also enough flexibility to prevent fractures caused by temperature changes or heavy pressure.
In practical applications, the modified UV resin performs exceptionally well. Take outdoor signage systems as an example: traditional signs often use acrylic-based coatings, which, despite being cost-effective, are prone to fading, peeling, and poor weather resistance under harsh conditions. In contrast, signs made from modified UV resin retain vibrant colors and long-lasting durability, require simple installation, and have low maintenance costs. Furthermore, modified UV resin has been widely applied in fields such as exterior wall coatings for buildings and automotive coatings, revolutionizing these industries with its outstanding performance.
Despite significant advancements in performance, research on polyester polyol-modified UV resin continues to deepen. Future studies will focus more on cost reduction, production efficiency improvement, and expanding application areas. With ongoing technological progress, it is reasonable to believe that polyester polyol-modified UV resin will play a larger role in the future of material science, bringing greater convenience and beauty to people’s lives.
