Antiblock Silica for PE Films

This PE film special antiblock silica adopts exclusive precipitation process to produce synthetic amorphous fine white powder, unified CAS No.112926-00-8 (former CAS:7631-86-9), EINECS No.231-545-4.

Classification :

High-End Industrial Silicon Dioxide

Keywords :

Antiblock Silica for PE Films

PRODUCT DETAILS

1. Product Description

This PE film special antiblock silica adopts exclusive precipitation process to produce synthetic amorphous fine white powder, unified CAS No.112926-00-8 (former CAS:7631-86-9), EINECS No.231-545-4. Targeted formula optimization for LDPELLDPEHDPE blown film, cast PE film production, with matched particle size and pore structure.

It features excellent compatibility with polyethylene resin, no pre-grinding needed for masterbatch granulation, outstanding uniform dispersion without agglomeration. Low addition dosage can form uniform micro-convex points on PE film surface, cut the contact area between film rolls, absorb exposed PE molecular chains, fundamentally eliminate winding adhesion and high-temperature storage blocking. The product is free of volatile matter and migration precipitates, will not cause oil bloom or surface speckles on PE film, retains original film tensile strength, puncture resistance and transparency. It optimizes film slip performance, reduces friction coefficient, perfectly matches high-speed film blowing machine and automatic bag-making production line. It can withstand drying below 300℃, suitable for modified PE composite film low-moisture processing.

2. Technical Characteristics

1. Particle size D50 matched 3.5~5.0μm, balance transparency and anti-block efficiency for thin & thick PE film

2. Moderate oil absorption value, good binding property with LLDPE carrier resin

3. Low iron impurities ≤60ppm, effectively avoid PE film yellowing

4. Moisture content ≤5%, easy to dry during PE masterbatch extrusion

5. Neutral pH value, compatible with PE common additives like slip agents, antioxidants

 3. Core Application Advantages

1. PE resin exclusive matching, no incompatibility, no fish eyes during film blowing

2. Low migration, no contamination for food-grade PE packaging bags

3. Improve film slip, solve film sticking, roll jamming in high-speed blown film line

4. Simplify masterbatch process, direct mixing without grinding to cut production cost

5. Improve film anti-creep property, stable unwinding during slitting and printing

 4. Application Scope

LDPE fresh-keeping film, LLDPE food packaging bag, HDPE heavy-duty packaging film, PE agricultural mulch film, cast PE composite film anti-block masterbatch raw material.

 5. Storage & Operation Instructions

1. Sealed storage in dry and ventilated warehouse, unopened shelf life 24 months; expired goods must pass performance test before use.

2. Dust-proof protection during loading and feeding, stacking height no more than 10 layers to prevent powder compaction.

3. Extend dispersion time in twin-screw extruder after opening the package, use up quickly to avoid moisture absorption reducing anti-block effect.

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.

Zhongqi

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."

Zhongqi

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.

Zhongqi

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.

Zhongqi
Zhongqi

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