Explore our export-ready functional liquid polymers, specialty gases, and engineered powders with complete lot-traceable COA and third-party validation.
In modern structural adhesives, microelectronics encapsulation, and energetic propellants, standard unmodified thermoset matrices suffer from severe brittle fracture under cycling thermal shock and cyclic loading. Liquidrubber Ca (carboxyl-terminated functional liquid rubber, also closely aligned with reactive functionalized CTBN matrices) functions as a pre-eminent elastomeric reactive flexibilizer.
As an ISO 9001:2015-certified Chinese chemical manufacturer operating since 2008, Yanxatech System Industries Limited (YANXA) bridges the gap between lab-scale polymerization precision and large-scale industrial consistency. By precisely polymerizing butadiene and acrylonitrile terminal units capped with reactive carboxyl functional groups (-COOH), Liquidrubber Ca achieves targeted in-situ phase separation during cross-linking, providing unmatched fracture toughness without compromising glass transition temperatures (Tg).
Why Tier-1 multinational manufacturers and procurement heads rely on YANXA’s integrated infrastructure for Liquidrubber Ca & advanced specialty formulations.
Direct supply contracts for butadiene, acrylonitrile, and acrylic monomers across coastal chemical industrial zones protect clients from catastrophic international price fluctuations and ensure stable year-round production.
Modern automated multi-ton reactor kettles equipped with DCS process-control ensure micro-dispersion of carboxyl chain ends with an extremely narrow polydispersity index (PDI < 1.8), avoiding batch-to-batch rheological shifts.
Streamlined logistics routes from Qingdao, Shanghai, and Ningbo ports coupled with lean manufacturing allow YANXA to provide direct FOB/CIF quotes that are 20% to 35% more cost-effective than European or US equivalents.
Engineered to solve shear, peel, dynamic vibration, and crack-propagation challenges across critical sectors.
Applied in epoxy hem-flange adhesives and crash-durable structural epoxies (CDA). It elevates impact peel resistance at -40°C while maintaining lap shear strength exceeding 25 MPa on galvanized and e-coated steels.
Functions as a microphase toughener in carbon-fiber prepregs (CFRP) and honeycomb panel potting. Prevents micro-cracking and interlaminar delamination during supersonic aerodynamic heating and freeze cycles.
Integrated into chip underfills, PCB solder resists, and electronic sealants. Drastically reduces internal coefficient of thermal expansion (CTE) mismatches between silicon dies and organic substrate carriers.
Serves as a flexible polybutadiene-based binder for industrial propellants and energetic charges. Ensures optimal mechanical properties across thermal expansion shifts without plasticizer exudation.
| Performance Parameter | Standard DGEBA Epoxy | Epoxy + 10% Liquidrubber Ca | Epoxy + 15% Liquidrubber Ca | Benefit for Engineering Teams |
|---|---|---|---|---|
| Impact Peel Strength (N/mm) | 1.2 - 2.0 | 7.5 - 9.0 | 11.5 - 14.0 | Prevents sudden catastrophic joint failure |
| Critical Stress Intensity (K1c, MPa·m½) | 0.75 | 1.85 | 2.40 | More than 200% increase in fracture barrier |
| Glass Transition Temp (Tg by DSC, °C) | 152 | 148 | 142 | Maintains high-temperature thermal envelope |
| Lap Shear Strength (23°C, MPa) | 21.0 | 26.5 | 28.2 | Higher load carrying under joint shear stresses |
Complete regulatory shielding and logistical compliance for North American, European, and Asia-Pacific importers.
We supply full GHS-compliant 16-section Safety Data Sheets (SDS), certificates of origin, and certified chemical registration dossiers ensuring frictionless customs clearance across the EU, USA, Japan, and Korea.
Equipped for UN-certified packaging (iron drums, IBC tote tanks, ISO tanks). Full compliance with IMDG and IATA dangerous cargo protocols guarantees intact, moisture-free shipments directly to your unloading dock.
Every commercial batch is supplied with an official Manufacturer Certificate of Analysis (COA). Independent third-party inspection through SGS, BV, or TÜV is supported prior to container sealing.
Market intelligence and technological macro-trends shaping buyer decisions in the specialty rubber and polymer sphere.
The push toward cell-to-pack (CTP) battery architectures necessitates structural sealants that provide high shear-flexural elasticity under intense road vibrations. Liquidrubber Ca is widely replacing legacy plasticizers because it chemically bonds into the polymer backbone, preventing outgassing and insulation breakdown.
Industrial health regulations across North America and Europe are phasing out solvent-thinned flexibilizers. 100% solids, reactive functional liquid elastomers like Liquidrubber Ca, EPB, and ATBN permit 0-VOC formulations, meeting stringent indoor air quality and worker safety standards.
Global supply disruptions have caused corporate procurement directors to diversify their supply chains away from single-region dependency. Partnering with seasoned Chinese direct manufacturers guarantees contract-level capacity allocation, safeguarding continuous multi-year manufacturing cycles.
Full portfolio encompassing grafted elastomers, ultrapure industrial gases, metal alloys, and functional chemical salts.
Direct answers for research scientists, formula designers, and strategic purchasing officers.
Liquidrubber Ca (-COOH terminated) pre-reacts with terminal oxirane rings of epoxy resin to form an epoxy-terminated rubber adduct. Upon addition of curing amines or anhydrides, the rubber initially remains soluble, but phase-separates into discrete sub-micron elastomeric spheres (0.1 to 2.0 μm) as the network crosslinks. These domains promote shear banding and micro-cavitation, arresting crack propagation without degrading mechanical stiffness.
Acrylonitrile determines the solubility parameter of the rubber modifier. Higher AN content (approx. 26%) increases polar affinity with bisphenol A/F epoxies, producing smaller phase-separated rubber domains and maintaining transparency. Lower AN content (10-18%) fosters earlier phase separation with larger domain sizes, maximizing peel strength and cryogenic impact resistance.
Liquidrubber Ca is packed in standard 200 kg airtight steel drums (with inert nitrogen blanketing) or 1000 kg UN-certified composite IBC tote tanks. Standard export lead time is 7 to 15 business days from order confirmation to Free On Board (FOB) delivery at major Chinese seaports.
Yes. Our in-house synthesis R&D center can custom-tailor the number average molecular weight (Mn between 2,500 and 5,000 g/mol) and fine-tune carboxyl content from 0.045 to 0.075 mol/100g to align precisely with your proprietary curing agent reaction kinetics.
Every single consignment is delivered with a formal Certificate of Analysis (COA) specifying tested carboxyl value, Brookfield viscosity, moisture level, color index, and volatile loss. Comprehensive GHS-standard Safety Data Sheets (SDS), Technical Data Sheets (TDS), and Non-DG/DG certification letters accompany export cargo.
Qualified commercial testing labs and industrial formulators can request 500g to 2kg evaluation samples accompanied by full lot-specific COA. Simply send your target parameters, expected application, and delivery port directly to our engineering export desk at [email protected].
Speak directly with polymer engineers who understand your molecular targets, curing kinetics, and international compliance requirements.
