Nanjing Chemical Material Corp.
China expandable microspheres become an ideal lightweight filler and foaming agent for plastics and rubber. Applicable to various materials for process coating, injection molding, extrusion molding, blow molding, and compression molding, to improve performance and expand applications. The performance and application advantages are as follows:
Waterproof, the unique uniform closed-cell structure of expandable polymer microspheres reduces water penetration and provides a more uniform foam product compared to foaming agents or open-cell structure lightweight additives;
Heat insulation, reduces the thermal conductivity of the final product. This is achieved through a hollow closed-cell structure that introduces closed gaps into the material;
Enhanced elasticity and compression capability;
Prevents shrinkage and warping during injection molding;
Controlled foaming for easier plastic processing;
Easy to lightweight, China expandable microspheres have a density of only 1/50 of water, significantly reducing the weight of products. This is especially important for transportation (automobiles, high-speed rail) and aerospace components;
Noise reduction, improves the sound insulation and stone chip resistance of automotive undercoatings;
Shock absorption, more conducive to shoe sole design;
Reflective properties of exterior wall coatings can reduce the need for energy-consuming air conditioning;
Lower density means reduced weight and material, replacing expensive resins, minimizing resin usage and reducing VOC emissions, thereby cutting material costs and increasing productivity;
Improves texture, filling, and application in cosmetics.
Due to future fossil fuel depletion and concerns about environmental sustainability, synthesizing polymers from renewable resources is receiving increasing attention. Developing biodegradable and bio-based China expandable microspheres becomes a sustainable direction.
Due to the versatility of microsphere formulations, different monomers (structural units) can be combined to form copolymers, allowing the introduction of multiple bio-based monomers into advanced formulations, gradually increasing the bio-derived content without sacrificing product performance. There are already conceptual proofs of China expandable microspheres, China expandable microspheres that include bio-derived monomers such as dimethyl itaconate, diethyl itaconate, and α-methylene-ε-valerolactone, as well as many acrylate monomers.
Cosmetic and skin care products
Bio-based microspheres can be used to produce sunscreens and biodegradable film-forming products, meeting the rapidly growing demand for natural and clean ingredients in personal care products and helping to prevent skin cancer caused by harmful UV rays.
Life sciences
The growing demand in life sciences sees polymer microspheres widely used in various biomedical research. These microspheres range from 10 microns to 1,000 microns in size, typically composed of polystyrene (PS) or polyethylene (PE). Depending on the intended application, these microspheres can also be ligands conjugated with proteins, peptides, antibodies, DNA, or RNA. Injection microspheres, used as fillers, are coated with collagen and growth factors to induce tissue regeneration and formation, improving treatment efficiency and reducing the risk of particle migration.
Pharmaceutical industry
This industry is a hotspot for the application of polymer microspheres. These microspheres are polymer particles, ranging from 5-150 microns in size, and carry API (active pharmaceutical ingredients) within the patient's body for sustained release over time. Synthetic polymer microspheres are widely used in clinical applications as fillers, embolic particles, and drug delivery carriers. They have proven to be safe and biocompatible.
