Article: 70% white masterbatch; Structure, properties and applications
White masterbatch 70%% is one of the most widely used types of colored masterbatch in polymer industries, which is used with the purpose of creating whiteness, covering and improving optical and mechanical properties in plastic products. Due to the high amount of titanium dioxide (TiO₂) pigment and its uniform distribution in the polymer base, this type of masterbatch is the main choice of many manufacturers in the field of packaging, tubes, films, sheets, injection parts, etc.
composition and structure
70% white masterbatch usually consists of three main components:
- Titanium dioxide pigment (70%)
which plays a vital role in creating whiteness, gloss, coverage and light resistance. The commonly used type is "rutile" with mineral coatings that create high thermal and optical stability. Carrier Resin Depending on the application, polyethylene (PE), polypropylene (PP), PS, ABS or even POM are used to create complete compatibility with the product's main polymer. Additives (Additives) include thermal stabilizers, Antistatic, lubricants and dispersants that greatly affect the final quality of the masterbatch.
Key Features of White Masterbatch 70%
- Very high covering power due to the high percentage of TiO₂
- Excellent dispersion of pigment which prevents surface accumulation and granulation
- High compatibility with various polymers if the base resin is selected correctly
- Increasing UV resistance and light stability in outdoor environments
- Improving the gloss and appearance of the surface Product
Applications
70% white masterbatch is used in many industries, including:
- Polyethylene films (HDPE, LDPE, LLDPE) for packaging
- BOPP and CPP film
- Production of sheets and profiles
- Injection of plastic parts
- Shop and industrial bags
- Agricultural products (film mulch)
- White or multilayer pipes
- Automotive parts and accessories Domestic
In the packaging and film industries, the use of this masterbatch is very common due to its high coloring power and uniform film thickness control. It is considered an ideal choice for injection parts due to its thermal stability.
Important points in choosing white masterbatch
To achieve the best quality of the final product, pay attention to the following when choosing a 70% white masterbatch:
- Type of TiO₂ (rutile or anatase)
Coated rutile is more suitable and more resistant. - Type of base resin
must be fully compatible with the original polymer. - Melt Flow Index (MFI)
should be coordinated with the process and original material. - Dispersion
Improper dispersion Pigment causes stains, black spots and reduced surface appearance. - UV stability
is very important in outdoor applications.
summary
70% white masterbatch is a vital product in the plastic industry that determines the final quality of many products. The high percentage of TiO₂, the high compatibility of the base resin and the right additives make this product an ideal choice for manufacturers. Choosing the right type of masterbatch not only creates a pure and shiny white color, but also increases durability, light resistance and economic savings.