1、代表性论文

Flame retardation of vinyl ester resins and their glass fiber reinforced composites via liquid DOPO-containing 1-vinylimidazole salts. Composites Part B: Engineering,2022, 234: 109697.

2、Polyurethane

Polyurethane-modified vinyl resin (PUMVR), as a novel composite material, is gradually emerging as a research hotspot in materials science due to its exceptional properties and broad application potential.

3、TOUGHTENING MODIFICATION OF VINYL ESTER RESIN BY POLYURETHANE ACRYLATE

Modified vinyl ester resin containing polyurethane acrylate blocks was synthesized by radical copolymerization under the action of initiator. The effects of addition of different urethane acrylates on the mechanical properties of the modified resins were investigated.

4、Upcycling of Ethylene

To address this challenge, we report an upcycling method that involves hydrolyzing EVA into ethylene-vinyl alcohol (EVOH) and incorporating it as a surface-reactive filler in polyurethane (PU) resins.

5、Structure

In detail, we have discussed pertinent research studies on the synthesis mechanism of silane-terminated PUs and the influencing state parameters. Besides, we also disclosed the relationship between structure of silane modified polyurethanes and its properties.

STRUCTURE, MORPHOLOGY AND MECHANICAL

A series of polyurethane (PU), prepared by using uretonimine modified pure 4,4' diphenylmenthane diisocynate (MDI), and vinyl ester resin (VER) simultaneous interpenetrating polymer networks (SINs) with different compositions have been synthesized.

Mechanical and thermomechanical properties of vinyl ester/polyurethane

Two sets of nanocomposites based on i) pure vinyl ester and ii)VE/PU IPN (93VE), were prepared with organically modified silica nanoparticle (OMS) as filler by 1, 2, 3 and 5% weight of the...

Synthesis and properties of a novel UV/moisture dual

A novel UV/moisture dual-curable polyurethane resin has been synthesized via a two-step process. In the first step, methoxysilane-modified polyether polyol (SPOL) was prepared through the thiolene ...

Isocyanate‐free urethane modified vinyl ester resin: synthesis

In this paper, we have reported the production of a mixture of urethane modified vinyl ester resin (UVER) through the non‐isocyanate polyurethane (NIPU) method without using phosgene...

Poly(vinyl chloride) composite emulsion resins modified by polyurethane

The modified poly (vinyl chloride) (PVC) emulsion resin was obtained by in situ emulsion copolymerization using the PU as seeds in an autoclave. The effects of PU molecular weight on the mechanical properties and thermal stability of the PU/PVC materials were investigated.

With the continuous advancement of technology, the research and application of new materials have become a key factor in driving industrial development. As a high-performance composite material, vinyl resin-modified polyurethane (VRM-PU) has demonstrated significant application potential across multiple fields due to its unique physical and chemical properties. This article explores the composition, performance characteristics, and practical applications of VRM-PU, aiming to provide references for research and application in related fields.

I. Composition of Vinyl Resin-Modified Polyurethane

Vinyl resin-modified polyurethane is a composite material formed through chemical reactions that introduce vinyl monomers into the polyurethane molecular chain. This material combines the mechanical strength of polyvinyl resins with the high elasticity, chemical resistance, and wear resistance of polyurethane. Specifically, VRM-PU typically consists of the following components:

1. Polyether or polyester-based polyurethane prepolymer;
2. Vinyl resin containing carbonate structures;
3. Initiator (e.g., peroxides);
4. Catalyst (e.g., metal salts).

II. Performance Characteristics of Vinyl Resin-Modified Polyurethane

VRM-PU exhibits a range of excellent properties, enabling its widespread use in various industries:

1. Mechanical Properties: Due to the presence of polyurethane segments, VRM-PU demonstrates superior mechanical properties, including high tensile strength, good tear resistance, and wear resistance.
2. Chemical Resistance: VRM-PU is resistant to corrosion by various chemicals, making it particularly valuable in industries such as chemicals and petroleum.
3. Weatherability: The modified material exhibits excellent UV resistance and aging resistance, allowing long-term outdoor use without significant degradation.
4. Processability: VRM-PU is easy to process and can be molded using various methods, such as extrusion, injection, and blow molding.
5. Environmental Friendliness: Compared to traditional polyurethanes, VRM-PU typically has lower VOC emissions, making it more eco-friendly.

III. Applications of Vinyl Resin-Modified Polyurethane

Owing to its unique properties, VRM-PU has been widely applied in diverse fields:

1. Building Materials: In construction, VRM-PU is used to produce flooring, ceilings, door and window frames, and other components, which are not only aesthetically pleasing and durable but also provide excellent thermal and sound insulation.
2. Automotive Industry: As part of automotive interiors, VRM-PU is used to manufacture car seats, dashboards, door panels, and other components requiring high wear and corrosion resistance.
3. Electronics: In the electronics industry, VRM-PU is employed to make phone cases, computer housings, and other components demanding high strength and impact resistance.
4. Medical Devices: In healthcare, VRM-PU is used to produce surgical instruments, orthodontic devices, and other components requiring excellent biocompatibility and durability.

As a high-performance composite material, vinyl resin-modified polyurethane has shown broad application prospects in multiple fields due to its unique mechanical properties, chemical resistance, and weatherability. With ongoing technological advancements, VRM-PU is poised to play an increasingly important role in materials science, contributing further to the development of human society.