Introduction
The electronics industry's demand for plastic raw materials takes into account safety, performance and manufacturability - from flame retardancy to high-frequency stability, from thin-walled molding to reflow soldering tolerance, the selection process is complex. This article systematically sorts out the types, properties, processes and application correspondence of plastics in electronics, and provides real cases and 2025 market trend analysis to help purchasers make definite decisions among performance, compliance and supply stability.
01 | Key Performance Indicators of Plastic Particles for Electronics
・Flame retardancy: UL94 (V-0/V-2/5VA), hot wire (GWIT/GWFI), needle flame test.
・Electrical properties: Dielectric constant/loss (high-frequency stability), CTI (tracking resistance), volume/surface resistance.
・Thermal performance: RTI (Continuous operating temperature), reflow soldering tolerance (≥245-260°C), heat deflection temperature (HDT).
・Mechanical properties: strength, impact, dimensional stability, thin-wall forming ability.
・Environmental compliance: RoHS/REACH, halogen-free, VOC/ odor.
・Chemical resistance: Electrolyte, flux, cleaning agent.
・Processability: Drying sensitivity, fluidity, warpage risk, compatibility with masterbatch/flame retardant formulations.
・Sustainability: Feasibility of recycling, circular material strategies (as per customer requirements).
The above indicators are key references when purchasing electronic plastics resin, helping to quickly screen raw materials that meet performance and compliance requirements.
02 | Common plastic particles for electronics and their applications
| Material | Key Features | Flame Retardancy/Temperature | Typical Applications | Selection Tips |
| PC Pellets (Polycarbonate) | Impact-resistant, dimensionally stable, optionally transparent, thin-wall molding | UL94 V-0 FR, 105–125°C | Smartphone frames, adapter housings, protective covers, transparent windows | Pre-dry 100–120°C; check flame retardant and colorant compatibility |
| PC/ABS Alloy Pellets | Combines PC strength with ABS toughness; balanced appearance & impact | V-0 (1.5–2.0mm) | Routers, printers, set-top boxes, laptop bottom covers | Balance flow at thin walls/clips and stress crack resistance; compatible with coating/electroplating |
| ABS Pellets | Easy processing, good appearance, cost-effective | V-0, 80–100°C | Cosmetic parts, buttons, panels | For high temperature or glow wire requirements, prefer alloys or high-temp grades |
| PBT Pellets | Low moisture absorption, excellent electrical properties, chemical resistance | GF+FR V-0, RTI 120–140°C | Power modules, connectors, automotive electronics | For thin-wall parts, match glass fiber content and flow grade |
| PA66 Pellets (Nylon) | High strength, glass fiber reinforcement possible | V-0, RTI 120–140°C | Plugs, relay frames, fan blades | Moisture affects dimensions; control drying and design tolerances |
| PPA Pellets (High-Temperature Nylon) | Higher thermal and dimensional stability; better reflow resistance | — | Fine-pitch connectors, camera module brackets | Prefer low warpage, high-temperature compatible grades |
| PPS Pellets | High temperature, chemical resistance, dimensional stability | V-0, 190–220°C | Power/electric motor near-heat components, power electronics housings | Glass/mineral fillers affect dimensions/surface; check welding/cleaning compatibility |
| LCP Pellets | Extremely low warpage, ultra-thin molding, low dielectric/loss, reflow stable | — | High-speed connectors, antennas, micro precision parts | Suitable for 5G/high-speed applications; strict mold temperature & venting control |
| PSU/PESU/PEI Pellets | High temperature, hydrolysis resistant, long-term stable | — | Industrial electronics, precision insulation parts, heat-resistant housings | High processing temperature, strict drying; assess compatibility with metal inserts |
| PEEK Pellets | Extremely high thermal and chemical stability | — | Extreme environment sensor housings, insulation supports | High cost, recommended only for specialized applications |
The above materials are all plastics in electronics, suitable for different functional components and high-temperature/high-frequency environments.
03 | Real Case (Application of Plastic Resin for Electronics)
| Application | Material Pellets | Selection Rationale |
| 65–140W GaN Adapter Housing | PC/ABS FR 1.5–2.0mm V-0 Pellets | Meets IEC 62368-1 glow wire & thermal requirements; impact-resistant and coating-friendly |
| Type-C / High-Speed Connector Terminal Carrier | LCP Pellets | Thin-wall microstructure, low warpage, high-frequency signal integrity |
| Automotive ECU / Wiring Connector Housing | PBT GF30 FR V-0 Pellets | Low moisture, dimensionally stable, chemical resistant; meets automotive electrical safety |
| Relay Coil / Motor End Cap | PA66 GF25/30 FR Pellets | Balanced strength and heat resistance; electrical clearance & CTI easier to meet |
| Smartphone Frame / Protective Cover | PC Pellets or PC FR Pellets | Impact-resistant, signal-friendly, thin-wall molding; reliable against drops and assembly stress |
04 | Market Trends and Procurement Impact in 2025
Tariffs and capacity changes: The US has imposed additional tariffs on some petrochemical products, Europe's high energy consumption policies, and discussions on China's capacity reduction have caused short-term supply disruptions, but in the long term, they are conducive to rebalancing.
Global Plastics Treaty: The Geneva conference of INC-5.2 failed to reach a consensus, and the cross-border regulatory path and timetable are uncertain.
Advanced recycling controversy: The economic viability and emission reduction effect of chemical recycling are questioned, and the actual recycling ratio needs to be verified during procurement.
Emerging demands: AI computing, 5G, and automotive electronics are driving the growth in demand for low dielectric/low loss plastic resins (LCP, PPE, modified PTFE), and high-speed connectors and antennas are emerging as new growth points.
05 | Supply advantages of Juyuan plastic pellets
Full range of plastic pellets for electronics: PC, PC/ABS, ABS, PBT, PA66/PPA, PPS, LCP, PSU/PESU/PEI, PEEK, etc.
Complete compliance documents: UL, RoHS/REACH, halogen-free, batch COA.
Multi-channel stable supply: Global network, reducing the risk of supply disruption, providing main supply + alternative solutions.
Application-oriented selection: Provide material family recommendations and equivalent material comparison tables based on components and working conditions to facilitate quick decision-making in procurement.
Rapid response to procurement requirements: Provide samples and technical data to support procurement in making a definite choice among performance, compliance and stable supply.
06 | Purchasing Suggestions
The following information can help Juyuan quickly recommend suitable plastic raw materials for electronics:
Component type: Housing, bracket or functional part.
Compliance requirements: UL94 grade, GWIT/GWFI, RoHS/REACH, halogen-free, etc.
Working environment: Maximum temperature, reflow soldering tolerance, chemical contact, etc.
Special requirements: Appearance treatment, spraying/electroplating, etc.
After providing this information, Juyuan's 24-year trading experience team can quickly output: material family suggestions → main supply/backup materials → samples or technical comparisons.