High-Performance Polyamides (Semi-Aratomical Nylons) China Supplier —PPA / PA46 / PA6T / PA9T / PAMXD6 / PA11 / PA12
High-temperature-resistant nylons for automotive / electronic connector / high-temp industrial applications. Operating temp up to 280°C (PPA). Direct sourcing from China tier-1 manufacturers.
Grades in This Category
| Grade | Full Name | Top Applications |
|---|
| [PPA](/products/ppa/) | Polyphthalamide | Semi-aromatic High-Temp Nylon (280°C) |
|---|---|---|
| [PA46](/products/pa46/) | Poly(tetramethylene adipamide) | Higher heat resistance than PA66 |
| [PA6T](/products/pa6t/) | Semi-aromatic Polyamide 6T | High heat resistance, electronic connectors |
| [PA9T](/products/pa9t/) | Poly(nonamethylene terephthalamide) | Mainstream high-end electronic connectors |
| [PAMXD6](/products/pa-mxd6/) | Meta-xylylenediamine Polyamide MXD6 | High rigidity, high barrier |
| [PA11](/products/pa11/) | Castor-oil-based Polyamide 11 | Bio-based, high toughness |
| [PA12](/products/pa12/) | Polylaurolactam (PA12) | Long carbon chain, flexible |
WhySemi-Aromatic Nylons?
Standard PA66 has continuous service temp ~120°C. High-end electronics / automotive under-hood needs 150-200°C+. Semi-aromatic nylons solve this:
| Property | PA66 (Standard) | PPA / PA46 / PA9T (Semi-Aromatic) |
|---|
| **Continuous service temp** | 120°C | 200-280°C |
|---|---|---|
| **Moisture absorption** | High (8-9%) | Low (4-6%) |
| **Dimensional stability** | Poor | Excellent |
| **Tensile strength (dry)** | 80 MPa | 90-120 MPa |
| **Cost** | $ | $$$ (premium) |
Applications by Industry
| Industry | Recommended Grades |
|---|
| **Electronic connectors (5G / SMT**) | PA9T / PA6T / PA46 |
|---|---|
| **Automotive high-temp under-hood** | PPA / PA46 |
| **Automotive fuel systems** | PPA / PA12 (bio-based) |
| **Bio-based / Eco-friendly** | PVC (蓖麻油 castor-oil) |
| **Flexible tubing / hose** | PA12 (long carbon chain flexible) |
| **Gas barrier films** | PAMXD6 (high barrier) |
Top Sellers (sub-group 1.3 High-End Nylon)
PPA — Polyphthalamide
- Up to 280°C continuous service temp
- Low moisture absorption (5-6% vs PA66 8-9%)
- Top choice for SMT connectors + automotive under-hood
- Available: Glass-filled 30% / 50%, Unfilled carbonated
PA46 — Poly(tetramethylene adipamide)
- Higher heat resistance than PA66
- Used in automotive chain tensioners / electrical connectors
- DSM Stanyl-grade equivalent
PA6T — Semi-aromatic Polyamide 6T
- High heat resistance
- Electronic connector main grade
PA9T — Poly(nonamethylene terephthalamide)
- Mainstream high-end electronic connectors
- Low water absorption
PAMXD6 — Meta-xylylenediamine Polyamide MXD6
- High rigidity
- High gas barrier (food packaging)
PA11 — Castor-oil-based Polyamide 11
- Bio-based from castor oil (renewable)
- High toughness
- Eco-friendly applications
PA12 — 长碳链 Polylaurolactam (PA12)
- Long carbon chain
- Low moisture absorption
- Flexible tubing
Contact — 24h Quote
Daishuming Lingli (代书命) — Founder & Sales Director
📱 +86-13922534393 |📧 [email protected]
*© 2025-2026 Huizhou Lingli Trading Co., Ltd. —Specialty Engineering Plastics International Trading from China*
Grades in High-Performance Polyamides
PPA
**PPA** (Polyphthalamide, 聚邻苯二甲酰胺) is a **semi-aromatic high-temp nylon** with c...
PA46
**PA46** (Poly(tetramethylene adipamide)) is a **higher-temp aliphatic nylon** w...
PA6T
**PA6T** (Semi-aromatic Polyamide 6T) is a **high-temp semi-aromatic nylon** use...
PA9T
**PA9T** (Poly(nonamethylene terephthalamide)) is a **high-performance semi-arom...
PAMXD6
...
PA11
**PA11** (Castor-oil-based Polyamide 11) is a **bio-based nylon from renewable c...
PA12
**PA12** (Polylaurolactam, 聚十二内酰胺) is a **long-carbon-chain aliphatic nylon** wi...
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