When purchasing rust proof film, although price is an important factor to consider, it cannot be the only criterion. In order to ensure that the anti rust film can effectively protect your product from rust, the following three key factors need to be considered when purchasing: anti rust performance, physical properties, and applicable environment.
Rust prevention performance
The primary function of anti rust film is to protect the metal surface from oxidation and corrosion. Therefore, its anti rust performance is the core indicator for evaluating the quality of anti rust films.
2. Anti rust masterbatch: The anti rust performance of the anti rust film is closely related to the added anti rust masterbatch. To ensure excellent anti rust performance of the anti rust film, it is necessary to ensure that the added anti rust masterbatch is made of brand new polyethylene masterbatch (with quality assurance)
3. Film thickness: The thickness of the rust proof film can also affect its rust prevention effect. Thicker film layers can provide longer protection, but excessively thick film layers may increase costs. Therefore, when making a choice, it is necessary to consider the actual needs comprehensively.
4. Uniformity of the film: The uniformity of the film layer is crucial for the rust prevention effect. If the film layer is uneven, it may lead to local weak areas, thereby affecting the overall rust prevention performance.
physical property
The performance of polyethylene particles determines the physical properties of the rust proof film, such as tear resistance, transparency, and softness.
The performance of polyethylene depends on its polymerization method. Under moderate pressure (15-30 atmospheres) organic compound catalytic conditions Ziegler-Natta The polymer is high-density polyethylene (HDPE). If the free radical polymerization is carried out under high pressure (100-300MPa), high temperature (190-210C), and peroxide catalyzed conditions, low-density polyethylene (LDPE) will be produced.
① LDPE Good toughness, soft touch, good transparency, and smooth surface. Commonly used for extruding packaging films, etc; Used for injection molding low-grade daily necessities and casings, turnover boxes, etc; Used for extruding blow molded containers, bottles, etc.
② HDPE High strength, good toughness, heavy feel, generally poor transparency. Generally used for making film products, such as industrial films, plastic films, agricultural films, etc.
LDPE and HDPE Common points: Both do not contain harmful substances, have no odor, and are safe and environmentally friendly.
application environment
Environmental humidity: Different rust proof films have varying degrees of tolerance to humidity. If the environment humidity is high, it is necessary to choose a rust proof film with good moisture resistance to ensure its long-term effectiveness.
Temperature range: Different anti rust films have different temperature resistance ranges, and some films may not be effective in high or low temperature environments. Therefore, it is crucial to choose the appropriate rust proof film based on the temperature range of the actual usage environment.
Chemical environment: If the product is used in acidic or alkaline environments, it is necessary to choose a rust proof film with strong chemical corrosion resistance. The influence of chemical environment on rust proof film may affect its protective effect
In short, the selection of anti rust film is not only about price, but more importantly, it should comprehensively consider its anti rust performance and applicable environment. When making a purchase, understanding the specific rust prevention ability of the product and its applicable environmental conditions can help you make more informed decisions and ensure that your product is better protected.
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