In addition to the separate feeding and mixing procedures involved in producing silicone rubber keypads, silicone masterbatch is a reliable and economical solution that provides superior color stability, material durability, and functionality to custom rubber keypads. Silicone masterbatch offers the desired coloring, high productivity, and optional functional additives and reinforcing agents.
Masterbatches for Silicone Rubber Keypads Production?
What Are Masterbatches in Production?
Masterbatches are primarily categorized as white, black, color, additive, or special effect. Polymer masterbatches are typically used in polymer processes to better incorporate color pigments and functional additives into a polymer carrier in packet or chip form, creating a highly concentrated, encapsulated mixture of additives in a polymer.
Custom polymer masterbatches support custom rubber keypad production by providing mechanical strength, precise color matching, stiffness, and surface finish. They are integrated with UV stabilizers, antiblock, antistatic protection, and other additive technologies.
Silicone Masterbatch for Silicone Rubber Keypad Manufacturing
To ensure compatibility with various silicone simulations, a silicone masterbatch is selected for silicone rubber manufacturing. It is formulated with precise pigment concentrations to meet your desired shade and color needs.
Silicone masterbatch can be customized with unlimited color options, from low-profile to vivid and vibrant, as well as with added value from functional additives. These additives improve performance, design flexibility, and mechanical strength.
Colored silicone masterbatch with optional functional additives is ideal for HTV/HCR silicone rubber production, particularly for rubber keypads.
The Manufacturing Process of Silicone Masterbatch for Keypads
Standard silicone is a type of thermosetting elastomer. Additives for thermoset and thermoplastic materials are formulated with a polymer carrier.
Prior to the mixing process, the dosage should be determined based on your desired performance specifications for rubber keypads. After the required additives, agents, and colorants are prepared in silicone masterbatches, the mixing, metering, and feeding systems are used.
Comparison Between Silicone Masterbatch and Pigments Paste
| Features | Silicone Masterbatch | Pigments Paste |
|---|---|---|
| Color Option | Flexible | Flexible |
| Metering Controls | More easy for metering | Tight and time-consuming metering control for volume and gravimetry |
| State | Solid granule typically | Pasty |
| Suitable Silicone Material | HCR (high consistency rubber)/HTV (high temperature vulcanizing) rubber | LSR (liquid silicone rubber) |
| Dispersion | Even dispersion | Moderate uniformity, create streaks possibly |
| Concentration | Maximal | Moderate |
| Function | Coloring and impart functionally | Coloring |
| Chemical Resistance | Superior | Good, based on the carrier oil |
| Viscosity Option | Low from high based on request | Low to medium |
| Initial Cost | High relatively | Moderate |
| Dosage | Small amount | Larger |
| Overal Cost | Moderate | Higher |
Benefits of Silicone Masterbatches for Keypads
Enhanced Consolidation for Rubber Keypad Manufacturing
Silicone masterbatches simplify the addition process by making it easier to incorporate additives and consolidate functional additives.
Batch-to-batch inconsistency of antimicrobial additives in medical-grade silicone keypads decreases, as does weakened hygiene performance. Additionally, the complexity of the procedures, processing, and storage costs decreases.
Improving Keypad Durability with Functional Additives and Stabilizers
Functional additives can be mixed with silicone masterbatch, including
- Mechanical Strength
- Anti-Blocking
- Temperature Resistance
- UV Degradation Resistance by UV Stabilizers
- Fungi & Bacteria Resistance by Antimicrobials
- Flame Resistance by Flame Retardants
- Polymer Modifier
- Processing Aids
- Antistatic Agents
Based on your request for the silicone rubber keypad project, SKF offers various functional additives and agents that strengthen the performance of rubber keypads in harsh environments containing medical, industrial, agricultural, and outdoor machinery and heavy-duty vehicles.
Reinforced Consistency & Dispersion in Rubber Keypad Products & Processes
The addition of a masterbatch improves the consistency and stability of silicone rubber keypad products and their production processes. Silicone masterbatches achieve significantly greater consistency, surface quality, and uniform dispersion with the same amount of additives due to pre-mixed silicone masterbatches with precise color pigments.
Inconsistencies or other issues that threaten quality assurance may affect the custom coloring and performance of silicone rubber keypads.
Cost-Efficiency & Decreased Waste
Using masterbatch, precise color pigments, and accurate additive dosing minimizes raw material waste, reinforcing cost-efficiency and decreasing production time.
In terms of coloring materials, colored silicone masterbatch requires fewer pigments than a selection of pure pigments to manufacture silicone rubber keypads. This makes masterbatch an efficient material for achieving the desired color in rubber keypads.
Although color pigments have lower initial unit costs, the need for larger quantities, potential waste, and disposal of leftovers due to low concentration and nonuniform dispersion will increase the overall cost of manufacturing keypads. Furthermore, manufacturing silicone rubber keypads is simpler with fewer processing equipment requirements and fewer steps, unlike the complex disposal processes of liquid color systems.
Improved Stability and Shelf-Life of Additives
Since the required additives are encapsulated in the silicone masterbatch, their stability and shelf life are improved. This isolates the additives from the influence of temperature, thermal shock, UV radiation, and humidity, while reducing costs associated with material degradation.
Safer Process of Hazardous Materials
Some additives are hazardous in their pure form, especially in powdered form. However, when these additives are mixed into silicone masterbatches, the potential hazards are reduced, which decreases the need for protective equipment and risk for manufacturing operators.
Cleaner Keypad Production
When powdered raw materials are used in processes and situations that are more difficult and time-consuming, such as handling and metering color concentrates, static electricity may cause them to attach to surfaces, spill, or waft away.
Using silicone masterbatch ensures a clean rubber keypad production area and machinery, and decreases cross-contamination and airborne contamination.
FAQs
Do silicone masterbatches enable glow-in-the-dark phosphorescent silicone rubber keypads?
Yes, silicone masterbatches can be mixed with additives to create glow-in-the-dark effects, opalescence, glitter, or solid colors. More information about phosphorescent silicone keypads can be found in SKF.
What are color masterbatch and filling masterbatch used for?
Color masterbatch is pressed with heat and requires polyethylene resin as a carrier. It is ideal for coloring plastics, pipes, wires, and blown films. Using a masterbatch filler increases the mechanical strength of plastic products and reduces production costs.
Is there liquid masterbatch?
Yes, but solid silicone masterbatch is more common in silicone rubber keypad production.
How do you test the color of silicone masterbatch for rubber keypads?
SKF utilizes a spectrophotometer for the color-matching process according to your silicone rubber keypad design.
What is the main difference between colored silicone masterbatch and pigment in rubber keypad production?
Masterbatch refers to a mixture of pigments, functional additives, and carrier resins. Pigments are concentrated color additives that are utilized for a wide range of silicone raw materials, which are in silicone fluids but not pure pigments.
Can silicone masterbatch support transparent rubber keypad production?
Yes, silicone masterbatch can achieve the desired level of transparency or opacity for your keypad project.
Final Thoughts
Silicone masterbatches provide excellent color stability, ease of material metering, and diverse functionability for specific performance. They are an economical option with lower overall costs for silicone keypad production and production processes. Ready to optimize your next project? Contact the SKF engineering team with your silicone rubber keypad request.
