Nano Zinc Oxide for EVA Foamed Materials
Keywords:
Zinc Oxide
Category:
E-mail:
cnairspace01@cnairspace.com
Description
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FAQ
CAS No. : 1314-13-2
In EVA compounding, standard indirect-process zinc oxide often struggles with dispersion, leading to uneven cell growth. The KK-J series (J35/J25) is engineered specifically to address this. By strictly controlling the specific surface area (BET) and utilizing surface passivation, this nano-grade ZnO acts as a highly reactive decomposition kicker for Azodicarbonamide (ADC/AC) blowing agents, bypassing typical agglomeration issues in high-viscosity polymer melts.
Processing Kinetics in EVA Matrices:
When formulated into EVA shoe midsoles or acoustic panels, the primary function of this material is lowering the activation energy of the ADC blowing agent.
- Decomposition Control: It shifts the ADC decomposition peak from ~200°C down to the typical EVA processing window (160°C–170°C), narrowing the gas release range.
- Cell Morphology: The high specific surface area (≥35 m²/g for KK-J35) provides massive interfacial contact points. This triggers a burst of simultaneous nucleation, effectively eliminating pinholes and resulting in a dense, uniform closed-cell structure with superior rebound resilience.
- Dosage Optimization: Due to its catalytic efficiency, formulation engineers can typically reduce the ZnO loading (phr) by 30-50% compared to conventional grades, mitigating the negative impact of high filler loads on the compound's specific gravity.
Technical Specifications:
Model | KK-J35 | KK-J25 | Testing Standard |
| CAS No. | 1314-13-2 | 1314-13-2 | |
Appearance | White or Light Yellow Fine Powder, Odorless, Tasteless | White or Light Yellow Fine Powder, Odorless, Tasteless |
|
Particle Size Distribution | D10:2-3μm |
|
|
ZnO wt% | ≥75 | ≥70 | GB/T 19589-2004 |
Matter Volatile at 105°C wt% | ≤2 | ≤2 | |
Specific Surface Area/ (m2/g) | ≥35 | ≥20 | |
Lead wt% | ≤0.008 | ≤0.008 | |
Manganese wt% | ≤0.005 | ≤0.005 | |
Copper wt% | ≤0.003 | ≤0.003 | |
Sieve Residue (Passed 45μm test sieve) wt% | ≤1.0 | ≤1.0 | |
Acid-insoluble matter / % | ≤0.05 | ≤0.05 | |
Place of Origin | Henan, China | Henan, China |
|
Applications:
Injection-molded and compression-molded EVA/PE blends. Critical for high-resilience footwear midsoles, cross-linked PE foams, and automotive NVH (Noise, Vibration, and Harshness) insulation materials.
Packaging:
25KG/BAG. High-strength pearlized woven bags with PE liners. Palletized for stable ocean freight and strict moisture control during transit.
Quality Baseline & SGS Validation
Managing specialty nanoscale zinc oxides requires far more than generic quality claims. In the advanced materials sector, lot-to-lot baseline stability is critical. We enforce a stringent quality control protocol where every dispatched batch is subject to independent SGS analytical testing. Whether it is verifying the BET specific surface area for polymer compounding or controlling heavy metal impurities down to sub-ppm levels for cosmetic compliance, we provide empirical data to secure your production consistency.
Application-Specific Grading
Operating a highly specialized technical distribution network since 2021, we do not simply supply chemicals; we match material science to your processing reality. We understand that CAS 1314-13-2 behaves differently across industries. From optimizing the activation temperature of ADC blowing agents in EVA matrices, to preventing white cast in personal care emulsions, or reducing intraparticle diffusion resistance in fixed-bed desulfurization, we ensure the exact crystalline morphology and purity profile your formulation demands.
Supply Chain Resilience & Technical Logistics
Bridging advanced material synthesis with global manufacturing, we are dedicated to shielding our industrial partners from supply chain disruptions. Our distribution matrix is designed to support demanding sectors, including new energy, electronics, medical applications, and high-performance elastomers. We handle everything from strictly moisture-controlled trial pallets to full-container loads (FCL), providing a seamless, transparent, and resilient sourcing channel.
1. How do we initiate sample testing for our specific formulation?
Rather than generic "free samples," we provide precise lab-scale samples tailored to your application. Because nanoscale ZnO behaves differently in an EVA matrix versus a cosmetic emulsion, please specify your required BET specific surface area or particle size limits when contacting us. Samples are accompanied by lot-specific COA (Certificate of Analysis) and SDS. Courier freight is usually arranged via the buyer's corporate FedEx/DHL account to expedite international transit.
2. What is the typical lead time and minimum order quantity (MOQ) for commercial volumes?
Our supply chain is optimized for industrial-scale fulfillment. For standard grades, FCL (Full Container Load) shipments are typically ready for vessel loading within 14 to 21 days following order confirmation. We operate strictly on standard international Incoterms (e.g., FOB, CIF, DAP). For trial productions, we also accommodate LCL (Less than Container Load) shipments, ensuring the same level of logistical priority.
3. How do you prevent material agglomeration and moisture ingress during ocean transit?
For high-surface-area nanomaterials, moisture control is critical. We do not use standard packaging. All 25kg shipments utilize high-strength pearlized woven polypropylene bags equipped with specialized PE internal moisture-barrier liners. Furthermore, all export cargoes are heavily palletized, shrink-wrapped, and edge-protected to eliminate physical damage and moisture exposure during long-haul maritime logistics.
4. What quality assurance and compliance documents do you provide?
Operating as a specialized advanced materials provider since 2021, we rely on empirical data rather than generic marketing promises. While chemical precursors like ZnO do not typically fall under CE or RoHS consumer directives, heavy metal and impurity control is our absolute baseline. Every dispatched batch is validated by independent SGS analytical testing. We provide comprehensive technical dossiers to support your downstream regulatory compliance.
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