PQ AB750: 高性能抗粘连二氧化硅用于塑料薄膜

Utworzono 05.30

*PQ AB750: 高性能抗阻塞硅胶用于塑料薄膜

PQ AB750, un producto de sílice precipitada de PQ Corporation (EE. UU.), sirve principalmente como un agente antiadherente para películas plásticas. Previene la adhesión entre capas al formar protuberancias a microescala en la superficie de la película, al tiempo que mejora las propiedades de deslizamiento y la procesabilidad. A continuación se presenta una descripción detallada de sus características, especificaciones técnicas, aplicaciones en la industria y ventajas en el sector.

I. Product Basics

1. Composición Química y Proceso de Fabricación

• Composition: Mainly composed of amorphous silica (SiO₂) with a purity ≥99%, containing trace metal oxides (e.g., Na₂O, Fe₂O₃).

• Process: Produzido através do método de precipitação, onde o silicato de sódio (vidro d'água) reage com o ácido sulfúrico para formar um precipitado, que é então lavado, seco e tratado superficialmente (Fonte: Eastmoney).

• Surface Treatment: Typiquement modifié avec des organosilanes (par exemple, des esters d'acides gras) pour améliorer la compatibilité avec les résines plastiques et réduire la difficulté de dispersion.

2. Propiedades físicas y especificaciones

• Appearance: 白色粉末，无可见杂质。

• Particle Size: Average particle size (D50) of approximately 7–10 μm, with a narrow distribution 可调 (adjustable via classification) to suit different film thickness requirements (Source: X-Technology Patent).

• Superficie específica: 150–200 m²/g (método BET), asegurando alta eficiencia de adsorción y anti-bloqueo.

• pH 值：6.5–7.5（中性），对薄膜材料的非反应性相互作用是安全的。

• Density: ~2.0 g/cm³, bulk density 0.2–0.4 g/cm³, facilitating metering and dispersion.

II. 核心技术特性

1. 防阻塞性能

• Mechanism: AB750 migrates to the film surface during processing, forming micron-scale protrusions that disrupt inter-layer van der Waals forces and prevent sticking (Source: X-Technology Patent).

• Quantified Results:

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◦ Coefficient of Friction (COF): Reduces from 0.8–1.2 to 0.2–0.4, significantly improving slip.
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◦ Opening Force: For PE films with 0.5–1.5% AB750, opening force ≤5 N/15 mm, meeting high-speed packaging line requirements.

msgid "2. Dispersibility & Process Stability" msgstr "2. 分散性与工艺稳定性"

• Compatibilité des masterbatches : Facilement combiné avec PE, PP et d'autres résines en masterbatches, garantissant une dispersion uniforme lors de l'extrusion et évitant les défauts de surface dus à l'agglomération.

• Thermal Stability: Stable at processing temperatures of 200–250°C, with no decomposition or volatilization, suitable for high-temperature extrusion.

3. 平衡的光学与机械性能

• Transparenz: Hält eine hohe Filmtransmission (≥90%) durch kontrollierte Partikelgrößenverteilung aufrecht, ideal für klare Verpackungsfilme.

• Mechanical Impact: Minimal effect on tensile/tear strength at recommended loadings (≤2%); may even enhance puncture resistance in some formulations.

III. 下游应用

1. Fabricación de película de plástico

• Clé Applications:

◦ Films d'emballage alimentaire : film étirable en PE, film rétractable en PP pour prévenir l'adhérence dans l'emballage de viande/pâtisserie.

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◦ Agricultural Films: Reduces sticking in PE mulch films, improving field deployment efficiency.
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msgid "Industrial Packaging: Stretch wrap and heavy-duty bags for enhanced stackability."
msgstr "工业包装：用于增强堆叠性的拉伸膜和重型袋。"
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• 典型电影类型：

◦ LDPE: 0.5–1.0% добавление для общей упаковки.

◦ BOPP: 0.8–1.5% pour les films de cigarette et les substrats de ruban.

◦ LLDPE: 0.3–0.8% pour des films à haute ténacité (Source : Shunqi Network).

2. 纤维与母料

• Fiber Modification: Previene el pegado en fibras de PP (por ejemplo, no tejidos spunbond), mejorando la uniformidad de la red.

• Functional Masterbatches: Blended with slip agents (e.g., oleamide) to create anti-blocking masterbatches for direct resin addition.

3. 其他工业用途

• Produits en caoutchouc : En tant qu'agent de renforcement secondaire pour améliorer le glissement de surface dans les tubes et joints en silicone.

• Coatings & Inks: 0.5–1% addition improves anti-blocking in UV-curable coatings (Source: Eastmoney).

IV. 行业优势与合规

1. Beneficios de rendimiento

• Cost-Effective: 30–50% lower cost than fumed silica, ideal for large-scale industrial applications.

• Batch Consistency: PQ的全球制造确保可靠的质量，最小化生产风险。

msgid "2. Regulatory Compliance" msgstr "2. 监管合规"

• Food Contact Safety: Complies with FDA 21 CFR §177.2420 (food packaging films) and EU EC No 10/2011 plastics regulations.

• Certificações Ambientais: certificado ISO 14001, com produção em conformidade com o EU REACH.

msgid "3. Technical Support" msgstr "3. 技术支持"

• 定制：PQ 提供粒径和表面处理的定制，以及母料配方优化。

• Application Testing: Free samples provided for film blowing/casting trials to accelerate customer validation.

V. 使用指南与注意事项

1. Control de Dosificación:

◦ 典型加载：0.5–1.5% （按树脂重量计算）。过量使用可能会增加雾度，并需要配方测试。

1. Recommandations de dispersion :

◦ Utilisez des extrudeuses à vis jumelées ou des mélangeurs à grande vitesse pour garantir une dispersion uniforme.

1. Almacenamiento:

◦ Almacenar en condiciones secas y frescas; volver a sellar después de abrir para evitar la aglomeración.

1. Comparación Competitiva:

◦ vs. Diatomite: 优越的颗粒均匀性，对薄膜力学影响最小。

◦ vs. Agents de glissement organiques (par exemple, éruamide) : Aucun risque de migration, adapté aux applications à haute température.

VI. 案例研究

• Case 1: Film de conditionnement alimentaire

◦ Customer Need: A PE film manufacturer required ≤8 N/15 mm opening force and ≥92% transmittance for food-grade cling film.

◦ Solution: 0.8% AB750 + 0.2% oleamide reduced opening force to 4 N/15 mm, with 91.5% transmittance, passing FDA certification.

• Case 2: Agricultural Film

◦ Customer Pain Point: 传统覆盖膜存在粘附性问题，导致田间部署缓慢和撕裂率增加。

◦ 改善：1.2% AB750 在 LDPE 膜中消除了粘附，拉伸强度提高了 10%，使用寿命延长了 15%。

VII. 采购与技术咨询

• Supply Channels: Contact PQ’s global distributors (e.g., Guangzhou Liby New Materials) for samples and technical support.

• Documentation: Disponible MSDS, TDS y certificados de cumplimiento a solicitud.

• Competitor Reference: Comparable products include Evonik Aerosil® R972 (hydrophobic fumed silica) and Cabot CAB-O-SIL® LM-150 (hydrophilic fumed silica), but AB750 offers superior cost and dispersion advantages.

For tailored insights into AB750’s performance in specific processes, contact PQ’s technical team for customized testing.

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