1. Product Overview

As a universal functional plastic additive, Silica Anti-blocking Aid is refined via an environmentally friendly precipitation method and a universal surface modification process. It strictly complies with industry standards, the EU EN 14639 standard and relevant specifications for Food Contact Materials (FCM). With ultra-high purity silica (≥99.8%) as the core material, it features highly spherical particles, no agglomeration, easy dispersion and no sharp edges. It is widely compatible with various plastic substrates including PE, PP, PVC, PET, BOPP and CPP. Its core function is to form a uniform and dense "micro-protrusion" isolation structure on the surface of plastic products, which effectively reduces the adhesion force between products and fundamentally solves the industry pain points such as tight winding, stacking adhesion and demoulding difficulties of plastic films, sheets, pipes and other products. Meanwhile, it causes minimal wear to processing equipment, without affecting the light transmittance, mechanical properties and processability of products. Adaptable to all kinds of plastic processing technologies, it is a universal, efficient and cost-effective anti-blocking solution for the plastic industry, and can be directly added or used for masterbatch preparation. (Note: Silica is formulated into opening masterbatches for film production; it is not suitable for direct addition into film resin.)

2. Technical Parameters

3. Application Advantages

With universal compatibility and high-efficiency anti-blocking performance, Silica Anti-blocking Agent covers all types of plastic processing scenarios and provides stable and reliable anti-blocking support for plastic products, with the following core application values:

1. Wide compatibility with various plastic substrates: Perfectly compatible with PE (LDPE, LLDPE, HDPE), PP (homopolymer, copolymer), flexible PVC, PET, BOPP, CPP and other plastic substrates. No separate formula adjustment is needed; it can be directly added or used for masterbatch preparation, with the filling amount flexibly adjustable to 10%-30%. It features extremely high compatibility, greatly reducing customers' formula adjustment costs.

2. Efficient solution to various adhesion pain points: Adding only 0.2%-0.8% to plastic products can form a uniform and stable "micro-protrusion" isolation layer on the product surface, reducing the contact area between products by more than 60% and the adhesion force from 500mN/25mm to below 50mN/25mm. It completely solves industry pain points such as tight winding of plastic films, stacking adhesion of sheets, demoulding difficulties of pipes and adhesion during high-temperature storage. The anti-blocking effect is long-lasting and stable, meeting the stability requirements of different storage environments (high temperature, high humidity, long-term stacking).

3. Low wear & easy processing, ensuring production efficiency: With an amorphous structure and highly spherical particles without sharp edges, it reduces the wear on extruder screws, dies and film blowing equipment by more than 90% compared with crystalline anti-blocking agents during masterbatch preparation and product processing, extending the service life of equipment. It has excellent dispersibility, with no agglomeration, no crystal points and no precipitation during processing, and is adaptable to film blowing, casting, extrusion, injection moulding and other processing technologies, facilitating continuous high-speed production.

4. Ensuring the core performance of products remains unaffected: Relying on universal surface modification technology, it has good compatibility with various plastic resin matrices. After addition, it does not affect the core performance of products - the light transmittance of PE and PP films remains above 90%, the tensile strength decreases by ≤3%, and the heat seal strength retention rate is ≥95%. It performs stably at a processing temperature of ≤220℃, meeting the quality requirements of various mid-to-high-end products. Meanwhile, it can reduce the addition amount of amide-based slip agents, lowering the comprehensive cost.

5. High cost performance for multi-scenario applications: Balancing high-efficiency performance and large-scale production cost advantages, it is widely used in various plastic products such as general packaging films, industrial sheets, agricultural films, pipes and special-shaped injection moulded parts. It can not only meet the anti-blocking needs of ordinary packaging but also adapt to the quality requirements of mid-to-high-end products, achieving a dual balance of cost performance and performance.

4. Factory Strengths

• Customizable universal compatibility: Exclusive particle size, specific surface area and surface modification solutions can be customized according to different plastic substrates (PE/PP/PET, etc.), processing technologies and product applications, accurately matching customers' personalized anti-blocking needs without requiring customers to adjust existing formulas, realizing rapid product adaptation.
• Superior batch stability guarantee: Adopting a DCS fully automatic closed-loop production line to achieve precise control of the entire reaction process, with the particle size distribution variation coefficient ≤10% and the batch-to-batch specific surface area difference ≤3%. It ensures highly consistent performance of each batch of products, avoiding product quality problems caused by raw material performance fluctuations, and is suitable for large-scale production needs.
• Full-process technical support: A professional technical team can provide full-process technical support from parameter selection, masterbatch formula optimization, processing technology debugging to mass production implementation, quickly solving various technical problems in customers' production process. It also provides compliance test reports to ensure the compliance of customers' production.

5. Frequently Asked Questions

Q: Can this Silica Anti-blocking Aid be used for the production of both PE films and PP sheets?

A: Yes. This product has universal compatibility and can be used for the production of PE films and PP sheets without adjusting the addition ratio and formula. After addition, it can solve the problems of winding adhesion of PE films and stacking adhesion of PP sheets respectively, without affecting the core performance of the two products, greatly improving customers' production efficiency and reducing raw material procurement costs.

Q: Will the addition of this additive affect the printing and laminating performance of plastic products?

A: No. This product disperses evenly and has good compatibility with plastic resins. After addition, it does not affect the surface flatness and roughness of products, and will not cause problems such as ink peeling and lamination delamination. On the contrary, it can improve the surface slip of products, facilitating the efficient development of subsequent printing and laminating processes and improving processing efficiency.

Q: Is this additive compatible with antioxidants and antistatic agents commonly used in plastic processing?

A: Fully compatible. This product has passed comprehensive additive compatibility tests and has excellent compatibility with various commonly used plastic additives. No chemical reaction, delamination or agglomeration occurs after mixing. It can also produce a synergistic effect with slip agents to further reduce the friction coefficient of products, simultaneously improving anti-blocking performance and processability, achieving a 1+1>2 use effect.

Q: How long is the customization cycle if the particle size needs to be adjusted to adapt to a specific substrate after small-batch trial?

A: No long waiting is needed. With a modular production line, we can quickly adjust particle size parameters and modification solutions, and the regular parameter adjustment and modification customization cycle can be shortened to 7-10 days. Meanwhile, we provide performance comparison tests and processing verification services before and after customization to help customers quickly complete product adaptation.

6. Certifications & Honors

• FSSC22000 Food Safety System Certification
• ISO22000:2018 Food Safety Management System Certification
• ISO9001:2015 Quality Management System Certification
• SHC HALAL Certification
• OU KOSHER Certification
• FDA Food Contact Material Certification
• FAMI-QS Feed Additive Quality Management System Certification
• SEDEX Social Accountability Certification
• Food Additive Production License
• Feed Additive Production License
• National High-tech Enterprise
• Guangzhou Specialized, Refined, Special and New Enterprise
• 17 authorized patents from the National Intellectual Property Administration