1. Product Description

ZLSIL-B905 Silica Anti-blocking Agent is a plastic-grade synthetic amorphous silica R&D exclusively for the production of anti-blocking masterbatches of plastic films. Manufactured via an exclusive proprietary process, it strictly complies with industry relevant standards and food contact material (FCM) regulatory requirements.

This product appears as a white fine powder, featuring a porous structure and high specific surface area as its core properties. It boasts excellent compatibility with plastic resins and superior dispersibility, allowing direct application without pre-grinding. When incorporated into anti-blocking masterbatches, it effectively forms a stable anti-blocking structure on the film surface, reducing the adhesion between plastic films while not compromising the transparency and mechanical strength of the films. Free of volatile substances and exudates, it is suitable for the production of anti-blocking masterbatches for various plastic substrates including PP, PE, PET and PVC, and provides high-efficiency anti-blocking and slip performance support for plastic films used in high-speed packaging lines.

2. Core Specifications

3. Application Highlights

By precisely regulating the pore structure and surface properties through a proprietary process, ZLSIL-B905 perfectly meets the core production requirements of anti-blocking masterbatches for PP, PE, PET, PVC and other substrates, and provides dual performance support of anti-blocking and slip for plastic film products. Its core application values are as follows:

1. Enables high-efficiency anti-blocking masterbatch production: With excellent dispersibility, the product can be directly mixed with resins without grinding and uniformly blends with carrier resins such as LLDPE, PP, PET and PVC. No exudation occurs during masterbatch forming, and no equipment abrasion is caused in subsequent processing steps including film blowing, cast film and extrusion, greatly improving masterbatch production efficiency.

2. Realizes dual efficiency of anti-blocking and slip: After the prepared anti-blocking masterbatch is added to plastic films, the porous silica particles form a stable anti-blocking structure on the film surface, reducing the exposed molecular chains during polymer processing and avoiding molecular chain entanglement when films contact, thus solving the anti-blocking problem from the root. It also reduces the adhesive force between the film and contact materials, enhances film slip performance, and adapts to the operation requirements of high-speed packaging lines.

3. Ensures the stability of key product properties: With good compatibility with the resin matrix, it achieves high-efficiency anti-blocking at a low addition level without affecting the core properties of plastic films. The transparency and tensile strength of the films remain stable. In addition, the product is free of volatile substances and exudates, effectively ensuring the quality and safety of packaging products and meeting the application requirements of food packaging and other scenarios.

4. Adapts to multi-substrate and special process requirements: It is fully applicable to the production of anti-blocking masterbatches for substrates including PE (LDPE, LLDPE), PP (homopolymer, copolymer), PET and PVC. For the ultra-low moisture requirement of PET film customers, the product can be dried below 300℃ with no performance attenuation after drying, perfectly matching the special processing requirements of PET films.

5. Enhances the comprehensive service performance of films: While improving the anti-blocking and slip properties of films, it also enhances the creep resistance of films and plays a certain reinforcing role. It ensures the stable performance of films in the entire process of winding, transportation, slitting, printing and bag making, and solves the problems of tight winding of film rolls and blocking during high-temperature storage.

4. Product Advantages

1. Proprietary process & superior performance: Produced via an exclusive special process, it forms a uniform porous structure and high specific surface area with remarkable anti-blocking effect. Its whiteness reaches up to 98.7%, effectively ensuring the appearance and texture of plastic products.

2. Easy to use & lower processing costs: As a fine powder with excellent dispersibility, it can be directly put into masterbatch production without grinding, reducing processing procedures and cutting equipment and labor costs. High-efficiency anti-blocking is achieved at a low addition level, further controlling raw material usage costs.

3. Excellent compatibility & wide adaptability: It has outstanding compatibility with various plastic resins such as PP, PE, PET and PVC, with no exudation and no equipment abrasion. It can be matched with various processing technologies including film blowing, cast film and extrusion, meeting the production needs of films with different substrates.

4. Customized drying & meets special requirements: Resistant to high-temperature drying below 300℃, it perfectly adapts to the ultra-low moisture processing requirements of PET films and provides an exclusive solution for the production of special substrate films.

5. Stable quality & safe eco-friendly: Non-toxic and pollution-free, free of volatile substances and exudates, the product complies with relevant food contact grade regulations. Strict quality control is implemented in the production process with stable batch performance, ensuring the formula consistency of masterbatch production and avoiding film quality problems caused by the performance fluctuation of additives.

6. Multi-functional synergy & higher comprehensive value: In addition to the core anti-blocking performance, it simultaneously improves the slip property and creep resistance of films with a reinforcing effect, realizing multi-effect with a single additive and enhancing the comprehensive application value of plastic films.

5. Frequently Asked Questions (FAQs)

Q: Can ZLSIL-B905 Silica Anti-blocking Agent be used for the production of food contact grade anti-blocking masterbatches?

A: Yes. This product complies with food contact grade standards such as FDA 21 CFR §177.1520 and EU No 10/2011, and third-party test reports are available. It can be applied to anti-blocking masterbatches for food packaging substrates such as PE, PET and PVC with no compliance risks.

Q: Is pre-grinding required before using ZLSIL-B905 Silica Anti-blocking Agent?

A: No grinding is needed. As a special plastic-grade fine powder with excellent dispersibility, it can be directly mixed with carrier resins to prepare anti-blocking masterbatches, reducing processing procedures and improving production efficiency.

Q: How to handle ZLSIL-B905 for the ultra-low moisture requirement of PET films?

A: The product can withstand high-temperature drying below 300℃. It can be dried within this temperature range according to production needs with no impact on all performance indicators after drying, perfectly matching the low-moisture processing requirements of PET films.

Q: What are the storage precautions for ZLSIL-B905 Silica Anti-blocking Agent?

A: Due to its high specific surface area, the product is prone to absorb water vapor or volatile substances in the air. It is recommended to store it in a dry, ventilated and cool environment to avoid moisture absorption. The recommended stacking height is no more than 10 layers to prevent extrusion from affecting product dispersibility. The shelf life is 24 months under the above storage conditions; if used beyond 24 months, it is recommended to conduct application performance tests first.

Q: Is there any compatibility issue between ZLSIL-B905 and other plastic additives?

A: No. The product has passed professional compatibility tests and has excellent compatibility with common plastic additives such as antioxidants and slip agents (e.g., erucamide, oleamide). No chemical reaction or delamination occurs after mixing, and it can produce a synergistic effect with slip agents to further reduce the film friction coefficient and enhance the slip effect.

Q: What should be noted during the loading, unloading and use of ZLSIL-B905?

A: Necessary measures should be taken to avoid dust emission during loading, unloading, use and transportation. If poor dispersion occurs during processing, the dispersion time can be appropriately extended. It is recommended to use immediately after opening to avoid moisture absorption affecting the use effect.

6. Certifications & Honors

The manufacturer of this product has a complete set of quality and system certifications, and the product quality and production process are guaranteed by authoritative certifications. The core certifications and honors are as follows:

• FSSC22000
• ISO22000:2018
• ISO9001:2015
• SHC HALAL
• OU KOSHER
• FDA Certification
• FAMI-QS
• SEDEX
• Food Additive Production License
• Feed Additive Production License
• National High-Tech Enterprise (China)
• Jinan Specialized, Sophisticated and Innovative Enterprise (China)
• 17 Patents Certified by the National Intellectual Property Administration of China

7. Manufacturer Information

Manufacturer: Shandong Zhonglian Chemical Co., Ltd.

Address: Jinan 250100, Shandong Province, China

Tel: 86-531-88737397

Email: Levin@zhonglian-chem.com

Official Website: https://www.zhonglian-chem.com