The significance of carrier resin in low-temperature conductive silver paste for membrane switch touch screen keyboards

Low-temperature halogen-free conductive silver paste is a dry, light asset manufacturing process, primarily depending on carrier resin, silver powder, and formulation elements.

Low-temperature halogen-free silver paste is a conductive functional material used in the preparation of flexible electronic circuits such as film switches, touchscreens, and keyboards. The quality of the carrier resin is a crucial factor determining the paste's excellent film-forming properties.

The carrier resin in conductive silver paste must first meet the requirements for rheology, conductivity, adhesion, flexibility, printability, resistance to sweat, antioxidant properties, and hardness, all simultaneously, in the manufacturing of electronic circuits.

Secondly, the leveling, volatility, and rheological behavior of the silver paste carrier resin are crucial for ensuring that the material transfers from the screen to the workpiece surface during the printing process, forming the conductive patterns for the membrane switch touch screen keyboard.

Classic saying in the paste industry: Only high-performance carrier resins can produce high-performance conductive silver paste.

Polyurethane carrier resin LR-9100 for conductive silver paste used in thin film switch touch screen keyboard

BASF polyurethane LR-9100 is an excellent carrier resin for conductive silver paste used in membrane switch touch screen keyboards, also serving as the material for overseas low-temperature silver paste manufacturers. It possesses characteristics that other TPU resins cannot match.

The LR-9100 carrier resin boasts excellent flexibility, wear resistance, and heat resistance as its fundamental characteristics.

The reliability of the 1R-9100 carrier resin: The LR-9100 has excellent high molecular weight, and the mechanical properties of the conductive silver paste can be adjusted within a certain range by formula based on the molecular weight.

LR-9100 carrier resin is halogen-free, free of harmful substances, and meets international standards as an environmentally friendly material.

LR-9100 has good wrapping property: The LR-9100 has high polarity and excellent adhesion, providing good wrapping of silver powder and good conductivity, which is beneficial for the fine line of silver wire.

LR-9100 features adjustable viscosity and excellent printability: The viscosity of LR-9100 silver paste is adjustable, offering controllable rheology, which is beneficial for fast, high-precision, continuous printing onto substrates. Fine line printing is free from ghosting and webbing.

LR-9100 Adhesion Adjustable: By adding appropriate additives, the adhesion of LR-9100 on various printing substrates such as PET and PCB can be significantly improved.

LR-9100 saves silver powder usage: The carrier resin of LR-9100 and silver powder can be well dispersed, wetted, and bonded. Special techniques and additives can enhance its electrical properties, reduce resistance, and improve conductivity.

LR-9100 silver paste has fast curing and good shrinkage rate: The cross-linking density of LR-9100 with the curing agent is high, allowing for quick curing and drying at low temperatures. The curing shrinkage rate is moderate, the hardness is adjustable, and the cured product meets the reliability requirements of the components.

LR-9100 carrier resin is sweat and antioxidant-resistant: LR-9100 has stable chemical properties, improving many shortcomings of conductive silver paste, especially in reducing silver wire oxidation, wire breakage, increased electrical resistance, and abnormal detachment caused by acidic and alkaline sweat corrosion during printing operations. It is particularly effective for large-scale production, storage, and use in automated lines.

Low-temperature Conductive Silver Paste Carrier Resin LR-9100 Supplier for Film Switch Touch Screen Keypad

BASF's polyurethane resin Laromer LR-9100 not only provides the essential self-adhesive properties in conductive silver paste, but also coordinates the compatibility of all components within the paste, addressing issues such as oxidation, acidic or alkaline solutions, and sweat in large-scale printing, ensuring the product's stability and durability.