clarifying agent for plastic bags

1. Introduction

Clarifying agent ZB-9805 is a high performance sorbitol based and reduces haze and enhances the clarity of polypropylene through nucleation of the polymer. This also leads to enhanced stiffness of the molded part and to shorter cycle time during the molding process.

It is ideal for food contact applications. This kind of products of such structural formula has been approved by FDA allowable using in food contacts in the world market. ZB-9805 is equivalent to Millad 3988.

2. Chemical Characterization

Chemical Name:      (1,3;2,4)Di(3,4-dimethyl)dibenzylidene sorbitol

CAS Number:        135861-56-2    

Malecular Formula:    C₂₄H₃₀O₆  

3. Physical Properties

Appearance:   White powder (odorless)            Melting Range:260--270 °C                            

Bulk Density:  0.2-0.4g/cm3                        Humidity  :  ≤1%

4. Industrial Use

Clarifying agent ZB-9805 is high effective clarifying agent for polypropylene homopolymer,random copolymer and LLDPE. Clarifying agent ZB-9805 could be blended with polypropylene powder though the dry mixing or the master batch and it gives high transparency and improves mechanical properties, heat resistance. The notified chemical will be applied in thin wall injection moulding, film sheet extrusion, blow moulding and rotational moulding. By injection molding, can produce housewares, storage cases, living hinge cases, thin-wall containers and disposable syringes. It also can make Clarified PP and blow molded bottles which are a popular choice for pharmaceuticals, spices, juices, sauces, vitamins, and baby bottles etc.

The dosage for Homo PP, Random copolymer PP is recommended between 0.2%--0.3%.

5. Packing and Storage

Every 10 kg are packed in one kraft paper bag with PE liner, and single PE bag inside.

To be stored under condition of shade, cool and dry with temperature of ≤35°C.