SB
SB (Styrene-Butadiene) Injection Molding Manufacturing
Overview of Injection Molded SB
Injection-molded SB (Styrene-Butadiene) is a thermoplastic material formed from styrene and butadiene. It offers a balance of rigidity, impact resistance, and affordability, making it ideal for various consumer and industrial plastic parts through injection molding processes.
Common grades of injection molded SB (Styrene-Butadiene) used for injection molding include:
General-Purpose SB
High-Impact SB
Weather-Resistant SB
Flame-Retardant SB
Food-Grade SB
Injection Molded SB Grades Comparison
Injection molded parts benefit from SB (Styrene-Butadiene) plastic when they require a balance of strength, impact resistance, and affordability. Consider the application's mechanical stress, environmental factors, and cost constraints to choose SB. High-impact SB is ideal for parts subjected to frequent impact, while weather-resistant SB suits outdoor use, and flame-retardant SB enhances fire safety. Food-grade SB ensures safety in food-contact applications.
Key Features And Applications
SB Grade | Key Properties | Common Applications |
|---|---|---|
General-Purpose SB | - Good balance of rigidity and impact resistance - Affordability | Consumer goods, packaging, automotive components |
High-Impact SB (HIPS) | - Enhanced impact resistance - Good rigidity - Moderate cost | Toys, appliance housings, electrical enclosures |
Weather-Resistant SB | - UV resistance - Outdoor durability - Moderate impact resistance | Outdoor furniture, garden equipment, automotive trim |
Flame-Retardant SB | - Flame resistance - Low smoke emissions - Electrical insulating properties | Electrical enclosures, safety equipment, automotive interiors |
Food-Grade SB | - Food-contact safe - Good chemical resistance - Cost-effective | Food packaging, kitchenware, beverage containers |
Physical And Mechanical Properties of Injection Molded SB
Property | Density (g/cm³) | Tensile Strength (MPa) | Tensile Elongation (%) | Flexural Modulus (GPa) | Flexural Strength (MPa) | Izod Impact Strength (J/m) | Heat Deflection Temp. (°C) | Shrinkage (%) | Hardness (HRB) |
|---|---|---|---|---|---|---|---|---|---|
General-Purpose SB | 1.05 | 35 | 3 | 1.9 | 70 | 25 | 85 | 0.6 | 65 |
High-Impact SB (HIPS) | 1.06 | 40 | 5 | 2.2 | 80 | 150 | 80 | 0.7 | 70 |
Weather-Resistant SB | 1.07 | 30 | 2 | 1.8 | 60 | 40 | 70 | 0.5 | 63 |
Flame-Retardant SB | 1.06 | 45 | 4 | 2.5 | 90 | 35 | 85 | 0.6 | 68 |
Food-Grade SB | 1.05 | 30 | 2 | 1.7 | 65 | 20 | 80 | 0.5 | 60 |
SB Grades Injection Molding Properties
General-Purpose SB:
Applications: General-Purpose SB offers a balanced combination of rigidity and impact resistance, making it suitable for various applications. It is commonly used in consumer goods, packaging, and automotive components.
Reasons for Popularity: Its popularity arises from its versatility and cost-effectiveness. General-Purpose SB provides satisfactory performance across various industries while being affordable.
High-Impact SB (HIPS):
Applications: High-impact SB (HIPS) is chosen for enhanced impact resistance and rigidity applications. It is commonly used in toys, appliance housings, and electrical enclosures.
Reasons for Popularity: HIPS is famous for its ability to withstand impacts and shocks while maintaining moderate cost. It offers the durability needed for products subjected to rough handling.
Weather-Resistant SB:
Applications: Weather-resistant SB is preferred for outdoor applications requiring UV exposure and durability resistance. It finds uses in outdoor furniture, garden equipment, and automotive trim.
Reasons for Popularity: Its popularity stems from its ability to withstand outdoor conditions, including UV radiation, without significant degradation. This makes it suitable for products exposed to the elements.
Flame-Retardant SB:
Applications: Flame-retardant SB is crucial in applications where fire safety is paramount. Due to its flame resistance, low smoke emissions, and electrical insulating properties is used in electrical enclosures, safety equipment, and automotive interiors.
Reasons for Popularity: Its popularity is driven by its ability to meet stringent fire safety standards. Flame-retardant SB enhances safety in environments where fire risks are a concern.
Food-Grade SB:
Applications: Food-Grade SB is selected for applications requiring food-contact safety. It is commonly used in food packaging, kitchenware, and beverage containers. Its good chemical resistance and cost-effectiveness are essential in these applications.
Reasons for Popularity: Popularity arises from its compliance with food safety regulations and cost-effectiveness. Food-Grade SB ensures the safety of food products while being a cost-effective choice for food-related applications.
Plastic Injection Molding FAQs
1. What Are The Common Defects In Injection-molded Parts?
2. What Materials Are Used In Injection Molding?
3. What Are the Types and Applicability of Custom Injection Molding
4. Typical Sized Plastic Parts Molded on a 260-Ton Injection Molding Machine
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