PVC injection plugs are widely used in electronic and household appliances and industrial fields, their performance is directly related to electrical safety and product life. Material selection is crucial to the quality of the final product, so what are the key performance requirements of PVC injection plugs for PVC compound, and the relevant international standards?
I. Core requirements of PVC injection plugs for raw materials
1. Electrical insulation performance
High volume resistivity (≥10¹² Ω·cm) and arc resistance to ensure safe use.
Comply with IEC 60884 (household plug and socket standard) and IEC 60695 (glow wire test).
2. Mechanical strength and durability
High impact resistance (≥10 kJ/m²) to prevent the plug from falling or breaking under force.
Excellent plug and unplug life (≥5000 times, GB/T 2099.1).
3. Heat resistance and dimensional stability
Heat deformation temperature (HDT) ≥70℃ (general purpose grade) or ≥90℃ (high temperature grade, ASTM D648).
Long-term use temperature range: -20℃ to 105℃ (UL 746B).
4. Flame retardant safety
Passed UL 94 V-0 (vertical burning test, ASTM D3801).
Oxygen index ≥28% (ASTM D2863).
5. Environmental compliance
Complies with RoHS 2.0 (EU 2015/863), REACH (SVHC list) and China RoHS (GB/T 26572).
Lead-free, cadmium-free, phthalate-free (such as DEHP).
II. Recommended raw material formula composition and performance
|
Composition |
Function |
International standard |
|
PVC resin (SG-5) |
Matrix material, balance fluidity and strength |
ISO 1060-1, ASTM D1755 |
|
Calcium zinc stabilizer |
Heat stable, lead-free and environmentally friendly |
IEC 62321, EN 1453 |
|
MBS impact modifier |
Improve toughness and crack resistance |
ISO 179, ASTM D256 |
|
Antimony trioxide |
Flame retardant enhancement |
V-0 grade UL 94, IEC 60695 |
|
Active calcium carbonate |
Reduce costs and improve dimensional stability |
ISO 3262, ASTM D1199 |
|
ACR processing aid |
Optimize injection molding fluidity |
ASTM D1238 |
III. Overview of key international standards
1. Electrical safety standards
IEC 60884-1: General requirements for household plugs and sockets.
2. Flame retardant and heat resistance standards
UL 94: Plastic combustion performance level (V-0/V-1/V-2).
IEC 60695-2-10: Glow wire test (850℃ non-flammable).
3. Environmental regulations
RoHS 2.0 (EU 2015/863): Restricts 6 types of substances such as lead and cadmium.
REACH (EC 1907/2006): Controls SVHC high-risk chemicals.
4. Mechanical performance standards
ISO 179: Izod impact strength test.
ASTM D638: Tensile strength and elongation at break.
5. Processing performance standards
ASTM D1238: Melt flow rate (MFR) test.
ISO 306: Vicat softening temperature (≥80℃).
Selecting the right PVC compound is the key to ensuring the performance and safety of the plug. INPVC is committed to providing customers with customized, high-performance, eco-friendly and compliant PVC solutions to help customers make better choices !
Post time: Jul-10-2025
