Polyethylene Terephthalate

Product Name Polyethylene Terephthalate Product Overview Polyethylene Terephthalate (PET) microspheres are high-stability, high-light-transmittance and chemical-resistant polymer micro-nano spherical materials. This series of standardized scientific research-grade monodisperse microspheres covers a full gradient of nano and submicron particle sizes from 20 nm to 1.0 μm, with a uniform solid content of 2.5% and a single bottle volume of 10 ml. Prepared by high-precision emulsion polymerization and fractional purification technology, the products feature uniform particle size, high sphericity, no agglomeration and excellent batch stability. PET material possesses outstanding chemical inertness, acid and alkali resistance, organic solvent resistance, good thermal stability, high light transmittance, low adsorption and low toxicity. Different from traditional degradable microspheres, it has long-term structural stability without easy degradation or deformation. The product supports diversified surface functional group customization, suitable for refined scientific experiments, instrument calibration, biological detection, material modification, environmental simulation and other scenarios, serving as a core basic Technical Parameter Dispersion Solvent :Sterile Deionized Water Solid Content :2.5%(Uniform and stable, with no settling or separation) Surface Modification :Unmodified; Customizable amino, carboxyl, streptomycin, biotin and other functional groups Surface Charge: Original weak negative charge, adjustable by customized functional groups Color:Transparent milky white uniform dispersion D: 20nm-150 μm Storage Condition:Storage Condition 2~8°C Store in a cool, dark place in a sealed container. Do not freeze and thaw, expose to high temperatures, or leave at room temperature for extended periods. Shelf Life 12个月(Under standardized unopened refrigerated storage conditions) Product Features •Full-gradient Particle Size Coverage with Wide Selection Range: The product covers full-gradient standard particle sizes from 20nm to 1.0μm (nano to submicron), and supports super-large particle size customization from 1μm to 500μm, fully meeting the particle size requirements of micro-scale scientific experiments, industrial detection and material modification scenarios. •Ultra-high Monodispersity and Strong Data Repeatability: Adopting multi-stage emulsion polymerization and precise classification technology, the particles feature uniform size distribution, full sphericity, no irregular particles and no agglomeration. With PDI ≤ 0.3 and excellent batch consistency, it ensures accurate and repeatable experimental data. •Excellent Material Stability and Corrosion Resistance: PET substrate has outstanding chemical inertness, acid and alkali resistance, organic solvent resistance and good temperature resistance. It will not degrade, deform or fail during long-term liquid storage. Different from degradable microspheres, it is suitable for long-term stability experiments and environmental simulation tests. •Multi-functional Customization System with Strong Adaptability: It supports the modification of various surface groups such as amino, carboxyl, biotin and streptomycin, realizing hydrophilic and hydrophobic regulation, biological coupling and specific binding, accurately matching differentiated experimental needs such as biological detection, targeted labeling and interface modification. •High Light Transmittance and Low Adsorption for High Detection Accuracy: PET material has excellent light transmittance and low non-specific surface adsorption, which can effectively reduce experimental interference, adapt to high-precision experimental scenarios such as optical detection, instrument calibration and microscopic observation, and improve experimental accuracy. •Standardized Mass Production and High Cost Performance: All specifications adopt unified pricing and standardized mass production with stable and controllable quality. The high-concentration ratio of 2.5% solid content provides sufficient dosage with higher cost performance than similar products, while supporting personalized customization services. Application Fields •Precision Instrument Calibration: As standard particle size calibration microspheres, they are used for daily calibration and performance verification of laser particle size analyzers, flow cytometers, microscopic observation equipment and particle analysis instruments, serving as universal standard consumables in the detection industry. •Biological Detection and Labeling: Modified with amino, carboxyl and biotin groups, they can be used for biomolecular coupling, cell labeling, immunoassay and trace biosensing analysis with strong specificity and low background interference, suitable for high-precision biological experiments. •Environmental Science Simulation Research: As a typical environmental microplastic material, PET microspheres of different particle sizes are applied to simulation experiments of microplastic migration, adsorption, degradation and toxicology in water environment, acting as core model materials for environmental science research. Functional Material Modification: Used for filling and modification of composite coatings, film materials and polymer substrates to improve the wear resistance, light transmittance, corrosion resistance and dimensional stability of materials, adapting to new material R&D and performance •Colloid and Interface Chemistry Research: Monodisperse and stable microspheres are applied in basic theoretical research such as colloid assembly, interface adsorption, emulsion stabilization and particle sedimentation kinetics with high data stability and experimental repeatability. •Industrial Filler and Fine Chemical Industry: High-stability PET microspheres can be used as fine fillers in optical materials, precision coatings and special rubber and plastic materials to improve product flatness, light transmittance and structural stability. User Guide 1. All products of this series are scientific research-grade consumables, only for laboratory scientific research, not for medical injection or industrial end products, and shall be used according to experimental requirements. 2. The products need to be sealed and refrigerated at 2~8°C away from light. Freezing, high-temperature exposure and repeated freeze-thaw are strictly prohibited. It is recommended to use up shortly after opening to prevent microsphere agglomeration and dispersion failure. 3. All customization services (group modification, super-large particle size, parameter fine-tuning) require prior consultation with customer service to confirm the customization cycle, quotation and technical parameters. Orders without consultation will be delivered with original standard specifications by default. 4. The parameters in this specification are general standard values. Minor physical deviations between batches are within the industry allowable error range and will not affect conventional scientific research experiments and instrument calibration. 5. The product has strong chemical stability. Long-term contact with strong acid, alkali and highly corrosive organic solvents should be avoided to extend the service life effectively.