Welcome to Shandong Zhonglian Chemical Co., Ltd. Equity Code:880747
ZLSIL-K45 Plastic Grade Silica Opening Agent
Classification :
High-End Industrial Silicon Dioxide
Keywords :
ZLSIL-K45 Plastic Grade Silica Opening Agent
PRODUCT DETAILS
1. Product Description
ZLSIL-K45 is a synthetic amorphous silica opening agent for plastic grade, presented as a white fine powder and prepared by an exclusive proprietary process. Its CAS No. is 112926-00-8 (former CAS No. 7631-86-9) and EINECS No. 231-545-4. This product integrates the characteristics of a high specific surface area, porous structure, high purity and low impurities, with extremely low contents of impurities such as sodium and iron and strictly controlled conductivity. It has excellent compatibility with plastic resins like PP, PE, PET and PVC, can be used without grinding, features a low addition level and excellent dispersibility, without influencing the transparency and mechanical strength of plastic films. Non-toxic and pollution-free, it contains no volatile substances or exudates, meeting the quality requirements of packaging products. It can effectively reduce the exposed molecular chains during polymer processing, avoid macromolecular chain entanglement between films and solve the blocking problem. Meanwhile, it reduces the frictional adhesive force of films to improve slip property, enhances the anti-blocking and anti-creep properties of films and achieves a reinforcing effect. It is suitable for the production of opening masterbatches for various plastic films, especially for processing scenarios with high requirements for raw material purity.
2. Technical Parameters
Item | Specification | Unit |
Appearance | White fine powder | N/A |
Internal Controlled Particle Size D50 | 4.0~4.5 | μm |
Pore Volume | 0.8~0.9 | cm³/g |
BET Specific Surface Area | 420~520 | m²/g |
Pore Size | 7~9 | nm |
Iron Content | ≤60 | ppm |
Conductivity | ≤80 | μS/cm |
Sodium Content | ≤0.05 | ppm |
Moisture Content | ≤0.5 | % |
3. Core Application Values
- High purity for high-end processing: Extremely low contents of impurities such as sodium and iron and controllable conductivity meet the film processing scenarios with high purity requirements for raw materials, such as food packaging and high-precision electronic packaging.
- Good dispersibility for convenient processing: Usable directly without grinding, it disperses uniformly in the masterbatch without agglomeration, simplifying the production process, reducing processing costs and improving masterbatch production efficiency.
- No damage to the core performance of films: It has excellent compatibility with the resin matrix, and the addition will not reduce the transparency and mechanical strength of plastic films, ensuring the appearance and use effect of films.
- Efficient opening and improved comprehensive performance: Relying on its porous structure and high specific surface area, it achieves an excellent opening effect with a small addition amount, and at the same time improves the slip, anti-blocking and anti-creep properties of films, reducing processing faults in high-speed packaging lines.
- Adapt to special processing requirements: For the ultra-low moisture requirement in PET film production, the product can be dried below 300℃ with no performance degradation after drying, fully complying with the processing standards of PET films.
4. Storage and Operation Requirements
- With a high specific surface area, the product is easy to absorb moisture and volatile substances in the air, so it should be stored in a sealed manner in a dry, ventilated and cool environment, with a shelf life of 24 months in an unopened state. An application performance test must be conducted before use beyond the shelf life, and it can only be put into production after passing the test.
- Necessary protective measures should be taken during loading, unloading, transportation and use to prevent dust emission; the stacking height of the product shall not exceed 10 layers to avoid affecting the product particle structure and dispersibility due to extrusion.
- During extrusion processing, equipment extrusion will reduce the product's dispersion effect, so the dispersion time should be appropriately extended; it is recommended to use the product immediately after opening the package to avoid the decline of opening and dispersion performance caused by moisture absorption.
Packaging and Shipping
Zhongqi (Guangdong) Silicon Materials Co., Ltd., with over 20 years of experience in the food-grade silica field, is a national high-tech enterprise and a Guangdong Province specialized and innovative enterprise. Trusted by numerous international food giants, it is a leader in high-end food-grade silica. Shandong Zhonglian Chemical Co., Ltd. is Zhongqi's sole officially authorized overseas sales subsidiary.
laboratory
The company has established a world-leading R&D and intelligent manufacturing system, built GMP-standardized workshops, constructed 10,000-ton intelligent production lines, established a national-level testing center equipped with cutting-edge international equipment, and built its own high-standard microbiological testing laboratory. From raw material screening to finished product delivery, the entire process strictly adheres to domestic and international food safety management certifications, achieving simultaneous leadership in both "quality" and "quantity."
Customer Visit
We are committed to silicon dioxide for 20 years, our product is well know in the world and cooperate with some Fortune 500 companies, such as the Nestlé，Yihai Kerry，COFCO，China Resources，Budweiser，Symrise, and so on.
HONOR
In 2021, the company was listed on the Guangdong Stock Exchange, marking the beginning of its international expansion. Today, Zhongqi Silicon Industry, with an open vision, empowers the global food industry's safety system with the power of "Made in China." Going forward, the company will continue to focus on molecular-level safety to ensure peace of mind and, with a global perspective, to create a purer quality of life. Because true strength lies in making invisible protections visible to the world.
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Sales Add
Jinan City, Shandong Province,China
Production Add
Guangzhou City, Guangdong Province
