1、Nano

To augment the toughness of unsaturated polyester (UP) polymer mortar, nano-SiO2 and polyurethane (PU) were incorporated. Firstly, the optimal dosages of nano-SiO2 and PU were determined through tensile test and impact test.

2、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.

3、Modification of Unsaturated Polyester Resin : A Review

Reviewing the modification of unsaturated polyester resin leads to the conclusion that modified unsaturated polyester resin has a wide range of application, including coatings, marine, aerospace industry, construction and bio-based applications.

Kinetics of the Curing of Polyurethane Modified Unsaturated Polyester Resin

The curing characteristic and kinetics analysis of polyurethane modified unsatura-ted polyester are studied by DSC and FT-IR. The network of polyurethane is formed much faster than that of...

Curing characteristics of polyurethane modified unsaturated polyester

Viscosity and curing characteristics of polyurethane modified unsaturated polyester (PU-UPES)/color paste mixtures were systematically studied.

Nano

Compared with pure UP resin mortar, the nano-SiO 2 /PU modified UP resin mortar exhibited a 44% reduction in shrinkage rate, approximately 20% less corrosion loss, a 32% decrease in freeze-thaw loss, a 37% improvement in impact resistance, and increased shear bonding strength, flexural bonding strength, and tensile bonding strength ...

Characterization and Performance Enhancement of Bio

This study introduces a novel approach to developing a polymer-modified construction material by incorporating varied amounts (0, 1, 2, 3, and 6%) of bio-based polyurethane (PU), derived from polyglycerol polyester polyol, into cementitious mortar.

Laboratory investigation on the properties of polyurethane/unsaturated

Therefore, this paper used polyurethane (PU) to modify UPR, and determined the best formulation of PU/UPR modified bitumen. The properties of PU/UPR modified bituminous binder were evaluated by viscosity, tensile, DSR and BBR tests.

Laboratory investigation on the properties of polyurethane

Therefore, this paper used polyurethane (PU) to modify UPR, and determined the best formulation of PU/UPR modified bitumen. The properties of PU/UPR modified bituminous binder were evaluated by viscosity, tensile, DSR and BBR tests.

Modification of unsaturated polyester resin by polyurethane prepolymers

In this study, UPRs were chemically modified by reactive blending with polyurethane prepolymers having terminal isocyanate groups.

Polyurethane-Modified Polyester Resin

Polyurethane (PU) is a high-performance polymer material widely used in industries such as manufacturing, construction, automotive, and more. Modified polyester resin refers to composite materials enhanced through chemical or physical processing to improve their properties. This article explores the characteristics, preparation methods, and applications of polyurethane-modified polyester resin.

I. Definition and Characteristics Polyurethane-modified polyester resin incorporates PU components to enhance the performance of polyester resin. This composite material typically exhibits improved mechanical strength, wear resistance, chemical resistance, and thermal stability.

II. Preparation Methods The main methods for preparing polyurethane-modified polyester resin include:

1. Blending Method: Mixing PU and polyester resin in specific ratios, melting with heat, and cooling for solidification. Simple but may affect material uniformity.
2. Filling Method: Adding PU particles or fillers to polyester resin, dispersing via mechanical stirring or ultrasonic treatment, then molding. Enhances mechanical properties and wear resistance.
3. Grafting Method: Chemically grafting PU monomers onto polyester resin chains to form block or graft copolymers. Improves heat and chemical resistance.

III. Applications Due to its superior properties, polyurethane-modified polyester resin is widely used in:

1. Automotive Manufacturing: For interior/exterior parts, tires, and seals (e.g., door handles, dashboards, tire treads) requiring wear resistance, aging resistance, and heat resistance.
2. Construction: Flooring, ceilings, doors/windows, furniture (e.g., floor leather, wallpaper, furniture pads) needing wear resistance, slip resistance, and stain resistance.
3. Electronics/Electrical: Insulation materials, heat sinks, protective films (e.g., circuit boards, phone cases, computer cooling pads) requiring electrical insulation, thermal conductivity, and antistatic properties.
4. Sports Goods: Athletic shoes, sportswear, balls (e.g., basketball/soccer soles) demanding wear resistance, traction, and shock absorption.

As a high-performance material, polyurethane-modified polyester resin holds broad application prospects. With optimized preparation methods and targeted applications, its advantages can be fully leveraged. Advances in technology and new material research will likely expand its role across industries.