Hypercrosslinked Polymers

Description

1. Product Overview

Hypercrosslinked Polymers are macroporous, high-surface-area adsorbents synthesized via post-crosslinking of polystyrene-divinylbenzene copolymers. They are primarily used for industrial purification, solvent recovery, and removal of trace organic contaminants from aqueous and non-aqueous streams. The key value proposition lies in their combination of activated-carbon-level capacity with polymeric bead durability, enabling low-fouling, high-selectivity separation cycles. In an era of tightening discharge regulations and circular economy pressures, HPLs offer a regenerable, predictable, and chemically tailorable alternative to conventional adsorbents.

2. Key Specifications & Technical Characteristics

• Chemical composition: Post-crosslinked polystyrene-divinylbenzene (PS-DVB) matrix, functionalized or non-functionalized

• Surface area (BET): 1000 – 1800 m²/g

• Mean particle size: 250 – 850 µm (spherical beads)

• Porosity: Microporous (5–20 Å) + mesoporous (20–500 Å), pore volume 0.8–1.5 mL/g

• Moisture content: 50–60% (as supplied, wet)

• Appearance: White to off-white spherical beads

• Bulk density: 650 – 750 g/L (wet)

• pH stability range: 1 – 14

• Maximum operating temperature: 120°C (aqueous); 80°C (organic solvents)

• Packaging options: 25 kg PE bags, 500 kg FIBC bags, 1000 kg IBC totes

• Shelf life: 3 years unopened; 18 months after opening if stored <30°C, dry, away from UV

3. Core Industrial Applications

• Pharmaceutical & fine chemical purification: Removal of genotoxic impurities, color bodies, and reaction byproducts from API mother liquors — outperforms activated carbon by enabling selective desorption and API recovery, reducing waste disposal costs by up to 60%.

• Industrial wastewater treatment: Polishing of reverse osmosis permeate and biological effluent to remove phenols, pesticides, and endocrine disruptors — provides consistent <10 ppb outlet levels with 200+ adsorption/regeneration cycles versus 1-time use of carbon.

• Solvent & monomer drying/purification: Extraction of trace water or stabilizers from feedstocks like styrene, acrylates, or chlorinated solvents — superior thermal and chemical stability reduces leakage and fines generation compared to silica gel or molecular sieves.

• Catalyst recovery & precious metal scavenging: Functionalized HPLs (with thiourea or phosphonic groups) recover Pd, Pt, and Rh from CWM effluents — achieves higher selectivity and easier elution than ion exchange resins.

4. Competitive Advantages

• Quality consistency: All batches tested for BET surface area ±50 m²/g, particle size distribution Cpk >1.33, and leachable organic carbon <50 ppm — full traceability to reactor logs.

• Supply reliability: Dual manufacturing sites (EU and Asia) with total annual capacity 12,000 MT; safety stock held regionally for 90% of SKUs.

• Logistics capability: Expedited airfreight (5–7 days) or container shipping (20–30 days) with hazardous-free classification (non-RID/ADR).

• Price competitiveness: 15–25% lower total cost of ownership than leading European specialty resin brands due to continuous post-crosslinking process; volume rebates available.

• Sustainability: Fully regenerable (NaOH/MeOH or isopropanol); spent resins can be thermally regenerated or sent to cement co-processing as non-hazardous fuel.

• Technical support: Free onboarding adsorption isotherm testing (BET + Langmuir), custom particle size or functional group modification, and on-site regeneration cycle training.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 20 MT (bulk purchase, standard grade)

• Loading capacity (per 20-ft container, dry weight): 18 – 20 MT depending on moisture content and bulk density

• Payment terms: Letter of Credit (L/C at sight) or 30% advance + balance against BL copy for first-time buyers; net 30 days for qualified distributors.

• Lead time: 4 weeks for MOQ stock grades; 6–8 weeks for custom functionalized grades.