Why It Matters
Polyolefins, styrenics, and engineering resins degrade by radical autoxidation during melt processing and service; antioxidants/light stabilizers extend service life and processing stability
Solution Approach
Polyolefins, styrenics, and engineering resins degrade by radical autoxidation during melt processing and service; antioxidants/light stabilizers extend service life and processing stability RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Treatment Workflow
1
System Assessment
Characterize operating conditions—fluid composition, temperature, pressure, flow rates—and benchmark current treatment performance.
2
Chemistry Selection
Match base chemicals to your operating envelope. Factor in compatibility with existing programs, regulatory constraints, and downstream impacts.
3
Dosage & Delivery
Determine optimal treat rates through jar testing or field trials. Configure packaging (drums, totes, ISO tanks) to match consumption and storage logistics.
4
Monitoring & Adjustment
Track KPIs—coupon rates, residuals, separator performance, water quality. Adjust chemistry and dosage as conditions change.
Recommended Chemistries (4)
BHT (Butylated Hydroxytoluene), Food Grade
CAS 128-37-0
Specialty Additives
Primary phenolic antioxidant
Hindered-phenol primary antioxidant: donates a phenolic H to quench peroxy radicals, breaking the autoxidation chain during melt processing; the legitimate polyolefin AO of this set
Melting Point: 69–71 °C Boiling Point: 265 °C at 760 mmHg Density: 1.048 at 20 °C
Full Details
TBHQ (Tert-Butylhydroquinone), Food Grade
CAS 1948-33-0
Specialty Additives
Tertiary butylhydroquinone
Hindered hydroquinone radical scavenger, a secondary phenolic option where BHT volatility is a concern
Melting Point: 127–129 °C Boiling Point: 295 °C at 760 mmHg Density: 1.05
Full Details
BHA (Butylated Hydroxyanisole), Food Grade
CAS 25013-16-5
Specialty Additives
Preservation
Phenolic chain-breaking antioxidant that interrupts peroxide-radical propagation (food-grade stock)
Melting Point: 48–55 °C Boiling Point: 264–270 °C at 733 mmHg Solubility: < 1 mg/mL at 18 °C
Full Details
Mixed Tocopherols Oil (Natural Antioxidant)
CAS 10191-41-0
Specialty Additives
Preservation
Natural-source phenolic H-donor for radical termination where a non-synthetic stabilizer is required
Melting Point: 2.5-3.5 °C Boiling Point: BP: 200-220 °C at 0.1 mmHg Density: 0.950 at 25 °C/4 °C
Full Details