2um Spacer PMMA Microspheres PAPMMA2UM

2um Spacer PMMA Microspheres PAPMMA2UM

SHBC PAPMMA2UM are precision 2 μm PMMA microspheres developed for micron-level gap control, uniform layer spacing and controlled bond-line thickness.

The spherical polymer particles are suitable for LCD, PDLC, optical films, precision adhesives, sensors and electronic component assembly.

Product Specifications

Batch-specific particle size distribution, solid content, supply form, packaging and storage information are available in the product specification and Certificate of Analysis.

Key Advantages

Precision 2 μm Gap Control

The nominal particle diameter helps maintain a consistent micron-level separation between substrates and functional layers.

Uniform Spherical Morphology

Regular spherical particles provide evenly distributed support points and help reduce local thickness variation.

Controlled Particle Size Distribution

Consistent particle sizing supports repeatable cell-gap and bond-line control.

PMMA Polymer Structure

PMMA is suitable for optical, display and polymer applications requiring uniform polymer particles.

Good Formulation Flexibility

PAPMMA2UM can be evaluated in compatible solvents, adhesives, coatings, resins and display formulations.

Custom and Bulk Supply

SHBC supports sample evaluation, customized specifications, pilot orders and industrial production.

Main Applications

LCD Cell-Gap Control

PAPMMA2UM can be evaluated as a spacer particle between glass substrates to help maintain a uniform liquid crystal cell gap.

PDLC Films

Suitable for polymer-dispersed liquid crystal films requiring controlled layer thickness and particle spacing.

Optical Films and Coatings

Used in optical films, functional coatings and light-management materials requiring uniform micron-scale particles.

Precision Adhesive Bonding

Can be dispersed in compatible adhesives to help control an approximately 2 μm bond-line thickness.

Touch Panels and Display Modules

Suitable for thin-layer spacing in display components, touch panels and optical module assemblies.

Sensors and Microelectronic Components

Can be evaluated for controlling separation between substrates, electrodes and precision electronic components.

Research and Material Development

Suitable for optical materials, microstructures, polymer composites and spacer-particle research.

How 2um PMMA Spacer Microspheres Work

PAPMMA2UM microspheres are dispersed in a compatible liquid crystal formulation, adhesive, coating or carrier.

After coating or assembly, the particles form physical support points between two surfaces. Their nominal diameter helps limit excessive compression and maintain a controlled separation.

Final gap thickness may also depend on:

• Mean particle diameter

• Maximum particle diameter

• Particle size distribution

• Spacer concentration

• Dispersion uniformity

• Assembly pressure

• Substrate flatness

Product Benefits

PAPMMA2UM helps provide:

• Micron-level gap control

• More uniform layer thickness

• Stable support-point distribution

• Reduced local gap variation

• Improved component alignment

• Repeatable assembly performance

• Custom particle specifications

• Reliable batch supply

PMMA vs. Inorganic Spacer Particles

PMMA spacer microspheres provide a polymer-based option for precision spacing applications.

Compared with rigid inorganic particles, polymer spacers may be considered when the application requires:

• Lower particle density

• Polymer-system compatibility

• Reduced risk of substrate scratching

• Optical material compatibility

• Adjustable surface properties

• Customized particle specifications

Material compatibility and mechanical performance should be validated in the final application.

Dispersion and Processing Guide

Uniform dispersion is important for consistent gap control.

Recommended processing considerations include:

• Confirm compatibility with the carrier

• Premix the particles before application

• Use controlled mechanical stirring

• Avoid excessive air introduction

• Minimize particle aggregation

• Control coating thickness

• Maintain consistent assembly pressure

Controlled ultrasonication may be used when compatible with the formulation and processing equipment.

Spacer Concentration Considerations

The appropriate particle concentration depends on the substrate area, required support-point density and formulation properties.

Insufficient loading may produce uneven spacing. Excessive loading may affect coating quality, optical performance or adhesive properties.

Evaluate:

• Particle dispersion

• Surface coverage

• Coating uniformity

• Final gap thickness

• Optical appearance

• Adhesive performance

• Long-term stability

Process validation is recommended before production use.

How to Select PAPMMA2UM

Consider the following factors when selecting 2um spacer microspheres:

• Target gap thickness

• Mean particle diameter

• Maximum particle diameter

• Particle size tolerance

• Particle size distribution

• Carrier or adhesive chemistry

• Optical requirements

• Coating method

• Assembly pressure

• Operating temperature

For precise spacing, both the mean diameter and maximum particle diameter should be evaluated.

Custom Spacer PMMA Microspheres

SHBC can customize PMMA spacer microspheres according to project requirements.

Customization options may include:

• Custom particle diameter

• Particle size tolerance

• Particle size distribution

• Solid content

• Dispersion medium

• Surface modification

• Dry powder or suspension

• Custom packaging

• OEM and ODM supply

Please provide the target gap, application, carrier system and required quantity when requesting customization.

Quality Control and Documents

Available product documents may include:

• Certificate of Analysis

• Technical Data Sheet

• Safety Data Sheet

• Particle size test report

• Particle size distribution data

• Microscopy images

• Batch inspection record

• Customized specification sheet

Why Choose SHBC?

Shanghai SanYu Biotechnology Co., Ltd. supplies polymer microspheres, silica microspheres, magnetic beads and functional microsphere materials.

SHBC provides:

• Precision microsphere manufacturing

• Stable batch-to-batch quality

• Multiple particle-size options

• Customized particle specifications

• Sample evaluation support

• Pilot-scale production

• Bulk manufacturing capability

• OEM and ODM services

Frequently Asked Questions

What are PAPMMA2UM microspheres?

PAPMMA2UM are nominal 2 μm PMMA microspheres developed for precision gap and layer-thickness control.

What are 2um PMMA spacer microspheres used for?

They can be evaluated for LCD, PDLC, optical films, display modules, precision adhesives, sensors and electronic components.

Can PAPMMA2UM create an exact 2 μm gap?

The nominal particle diameter helps control the gap. Final thickness also depends on particle distribution, concentration, formulation properties and assembly pressure.

Can PAPMMA2UM be used in LCD panels?

Yes. They can be evaluated as polymer spacer particles for maintaining a controlled cell gap between display substrates.

Are PAPMMA2UM suitable for PDLC films?

Yes. The particles can be evaluated in compatible PDLC formulations requiring controlled layer thickness.

Can PAPMMA2UM be mixed into adhesives?

Yes. They can be evaluated in compatible epoxy, UV-curable adhesive, acrylic and other polymer systems.

How should the particles be dispersed?

Use controlled stirring or compatible ultrasonication to achieve uniform dispersion while minimizing bubbles and aggregation.

Can SHBC customize the specifications?

Yes. Particle diameter, size tolerance, solid content, dispersion medium, surface properties and packaging can be customized.

Are samples and bulk quantities available?

Yes. SHBC supports laboratory samples, pilot orders and long-term bulk supply.

Request a Sample or Quotation

Contact SHBC for PAPMMA2UM samples, technical specifications, customized PMMA spacer microspheres and bulk pricing.

Please provide:

• Target application

• Required gap thickness

• Carrier or adhesive system

• Required quantity

• Preferred supply form

• Packaging requirements

• Estimated annual demand

Product: 2um Spacer PMMA Microspheres
Catalog Number: PAPMMA2UM
Material: Polymethyl Methacrylate, PMMA
Nominal Particle Size: 2 μm
Brand: SHBC
Manufacturer: Shanghai SanYu Biotechnology Co., Ltd.