Grafted Polymers
Toughening Agent Supplier
Toughening Agent Series
As a toughening agent supplier, SYCHEM TECH produces SY series toughening agents — maleic anhydride (MAH) and glycidyl methacrylate (GMA) grafted polymer elastomers specifically designed to enhance impact resistance, low-temperature performance, and processability of engineering plastics. These products enable toughened, reinforced-toughened, and flame-retardant reinforced-toughened formulations across nylon, ABS, polyester, and other high-demand resin systems.
Product Introduction
SY-NE is a maleic anhydride grafted polyolefin elastomer. It is mainly used for toughening PA6 and enhancing toughness, improving the material’s impact resistance while maintaining good strength in nylon materials.
Typical Properties
| Physical Properties | Test Method | Unit | SY-NE |
|---|---|---|---|
| Base Resin | — | — | POE |
| Functional Group Content | Company Std. | MAH wt% | Medium (0.4-0.8%) |
| Melt Flow Rate (190°C/2.16kg) | ISO-1133 | g/10min | ≧ 0.6 |
| Density | ISO-1183 | g/cm³ | 0.86-0.89 |
Product Introduction
SY-NP is a maleic anhydride grafted polyolefin elastomer. It is mainly used for toughening PA6 and PA66, enhancing toughness, flame-retardant reinforced toughening, improving the material’s low-temperature performance and impact resistance, while maintaining good fluidity for easy molding and processing.
Typical Properties
| Physical Properties | Test Method | Unit | SY-NP |
|---|---|---|---|
| Base Resin | — | — | POE |
| Functional Group Content | Company Std. | MAH wt% | Medium (0.4-0.8%) |
| Melt Flow Rate (190°C/2.16kg) | ISO-1133 | g/10min | 0.6-2.2 |
| Density | ISO-1183 | g/cm³ | 0.87-0.89 |
Product Introduction
SY-NF is a maleic anhydride grafted polyolefin elastomer. It is mainly used for toughening PA6 and PA66, enhancing toughness, and flame-retardant reinforced toughening, improving the material’s impact resistance. It is a highly cost-effective nylon series toughening agent.
Typical Properties
| Physical Properties | Test Method | Unit | SY-NF |
|---|---|---|---|
| Base Resin | — | — | POE |
| Functional Group Content | Company Std. | MAH wt% | Medium (0.4-0.8%) |
| Melt Flow Rate (190°C/2.16kg) | ISO-1133 | g/10min | 0.4-1.8 |
| Density | ISO-1183 | g/cm³ | 0.89-0.91 |
Product Introduction
SY-NK is a maleic anhydride grafted polyolefin elastomer. It is mainly used for toughening PA6 and PA66, enhancing toughness, and flame-retardant reinforced toughening, improving the material’s impact resistance and molding processability.
Typical Properties
| Physical Properties | Test Method | Unit | SY-NK |
|---|---|---|---|
| Base Resin | — | — | POE |
| Functional Group Content | Company Std. | MAH wt% | High (>0.8%) |
| Melt Flow Rate (190°C/2.16kg) | ISO-1133 | g/10min | 0.6-1.8 |
| Density | ISO-1183 | g/cm³ | 0.85-0.87 |
Product Introduction
SY-NT is a maleic anhydride grafted polyolefin elastomer. It is mainly used for toughening PA6 and PA66, enhancing toughness, and flame-retardant reinforced toughening. It improves the material’s impact resistance and low-temperature resistance, suitable for temperatures ranging from room temperature to -50°C.
Typical Properties
| Physical Properties | Test Method | Unit | SY-NT |
|---|---|---|---|
| Base Resin | — | — | Elastomer |
| Functional Group Content | Company Std. | MAH wt% | High (>0.8%) |
| Melt Flow Rate (235°C/5kg) | ISO-1133 | g/10min | 8.5-12.5 |
| Density | ISO-1183 | g/cm³ | 0.88-0.90 |
Product Introduction
SY-AR is a high molecular weight butadiene-based terpolymer. It is mainly used to enhance the toughness of ABS and improve its impact resistance. It can also be directly mixed with ABS raw materials or recycled materials for injection molding, thereby increasing the material’s impact strength.
Typical Properties
| Physical Properties | Test Method | Unit | SY-AR |
|---|---|---|---|
| Base Resin | — | — | ABS High Rubber Powder |
| Functional Group Content | Company Std. | MAH wt% | — |
| Melt Flow Rate (200°C/5kg) | ISO-1133 | g/10min | — |
| Density | ISO-1183 | g/cm³ | 0.95-0.99 |
Product Introduction
SY-ER and SY-ES are ethylene-acrylate-glycidyl methacrylate terpolymers. They are used for toughening PBT and PET, enhancing toughness, and flame-retardant reinforced toughening. They also serve as compatibilizers for PC/PBT and PC/PET alloys.
Typical Properties
| Physical Properties | Test Method | Unit | SY-ER | SY-ES |
|---|---|---|---|---|
| Base Resin | — | — | EMA | EMA |
| Functional Group Content | Company Std. | GMA wt% | High (>0.8%) | High (>0.8%) |
| Melt Flow Index (190°C/2.16kg) | ISO-1133 | g/10min | 1.8-4.2 | 1.2-3.8 |
| Density | ISO-1183 | g/cm³ | 0.91-0.96 | 0.93-0.96 |
Product Introduction
SY-EV is glycidyl methacrylate grafted polyethylene. It is mainly used for enhancing toughness and flame-retardant reinforced toughening of PBT.
Typical Properties
| Physical Properties | Test Method | Unit | SY-EV |
|---|---|---|---|
| Base Resin | — | — | PE |
| Functional Group Content | Company Std. | GMA wt% | Medium (0.4-0.8%) |
| Melt Flow Index (190°C/2.16kg) | ISO-1133 | g/10min | 4.5-7.5 |
| Density | ISO-1183 | g/cm³ | 0.91-0.94 |
Need Help Selecting the Right Grade?
As your toughening agent supplier, our technical team can recommend the optimal grade based on your resin system, target impact performance, processing temperature, and flame-retardant requirements.
Contact Us for Technical SupportYour Toughening Agent Supplier in China
SYCHEM TECH is a toughening agent supplier based in Shenyang, China, producing the SY series of maleic anhydride (MAH) and glycidyl methacrylate (GMA) grafted impact modifiers for nylon (PA6/PA66), ABS, and polyester (PBT/PET) systems. As your formulation development partner, we match the right base elastomer, graft level, and melt flow to your resin and impact targets — including low-temperature grades down to −50°C and flame-retardant reinforced-toughened formulations — and advise on dosage (typically 3–25%). For background, see the overview of maleic anhydride grafting.
Need help choosing a grade? Tell us your matrix resin, target impact and low-temperature performance, and processing window, and our team will recommend the right SY toughening agent and arrange samples. Explore the parent grafted polymers hub, our compatibilizers, and the full functional additives range.
Further reading: Compatibilizer vs toughening agent: key differences shows when a compound needs impact modification and when it needs better interfacial adhesion. For the interface side, see what is a compatibilizer and how it works.
Toughening agent FAQ
What is a toughening agent for plastics?
A toughening agent, or impact modifier, is a polymer toughening additive that disperses fine rubbery particles in a rigid plastic. The particles absorb and spread impact energy, so the part bends instead of cracking. Grafted toughening agents also carry reactive groups such as maleic anhydride (MAH) or glycidyl methacrylate (GMA), which bond the rubber phase to the matrix and give much higher notched impact strength than a plain elastomer such as POE.
Should I use an MAH or a GMA toughening agent?
Choose by the end groups of your resin. MAH-grafted elastomers react with the amine end groups of nylon, so our SY-NE, SY-NP, SY-NF, SY-NK and SY-NT grades are used in PA6 and PA66. GMA carries an epoxy group that reacts with the carboxyl and hydroxyl ends of polyesters, so SY-ER, SY-ES and SY-EV toughen PBT and PET and also compatibilize PC/PBT and PC/PET alloys. For ABS, the butadiene-based SY-AR needs no reactive group.
How much toughening agent should I add?
Reference dosages are 3–25% for the nylon grades, 3–20% for SY-ER and SY-ES, 3–5% for SY-EV and 3–10% for SY-AR in ABS. Higher dosage raises impact strength but lowers stiffness, heat deflection temperature and melt flow, so start in the middle of the range and adjust to your notched impact and modulus targets.
Which toughening agent works at low temperature?
For nylon parts that must stay tough in cold climates, SY-NT keeps impact resistance from room temperature down to −50 °C, and SY-NP also improves low-temperature performance in PA6 and PA66. Typical uses are automotive clips, cable ties and outdoor housings. See our nylon resins for base grades.
Can I use a toughening agent in glass-fiber or flame-retardant compounds?
Yes. SY-NP, SY-NF, SY-NK and SY-NT for nylon, and SY-ER, SY-ES and SY-EV for PBT, are used in reinforced and flame-retardant reinforced toughened formulations. Because the elastomer adds fuel, check the flame rating after toughening and adjust the flame-retardant loading if needed.
What is the difference between a toughening agent and a compatibilizer?
A toughening agent raises impact strength; a compatibilizer improves adhesion between a polymer and a filler, fiber or second polymer. Some grafted polymers do both, for example in PA/PP alloys. Read compatibilizer vs toughening agent or see our compatibilizers.
How do I choose the right SY grade and get samples?
Tell us your resin, filler or flame retardant, target notched impact and lowest service temperature. As a toughening agent supplier, we will recommend an SY grade, email the TDS and arrange samples for your trial. Contact our team or write to info@sychemtech.com.