What are the commonly used additives for plastic film?

In the process of manufacturing plastic film, in addition to the matrix resin as the main raw material, it is necessary to add some substances in the resin which have improved performance or processing characteristics of the plastic film, and these substances are called additives or additives of plastic film. With the wide application of high-tech processing technology in the plastics, packaging and ink industries, additive technology, as an important part of the technological innovation of the packaging and printing industry, has gradually become the focus of innovation in the industry.

According to the function and purpose of changing the film, different additives should be selected, such as: improving the stability of the plastic, using heat stabilizer, antioxidant, ultraviolet absorber, anti-mold agent, etc.; making the plastic material soft and lightweight Using plasticizers, foaming agents, etc.; adding lubricants, processing aids, plasticizers, etc. to improve the processing properties of plastics; adding antistatic agents to improve the antistatic properties of plastics; improving the surface properties of plastics, adding lubricants , brighteners, brighteners, anti-blocking agents, slip agents, etc.

For the flexible packaging industry, additive technology can improve the processing properties and performance of plastic films, giving plastic materials more functionality.

More and more consumers are looking for safer, fresher and more convenient foods. Leaders in the food and beverage industry need more creative packaging techniques to fulfill their commitment to freshness. Through research and technological innovation, only by constantly seeking new methods can we ensure that packaged foods are both fresh, pure and delicious. In this process, the functional research of additives is crucial.

Here are some of the new auxiliaries for film processing that I would like to introduce, and I hope that you can provide some advice during film processing.

DuPont develops a variety of additives

Biomax·Strong additive

DuPont Packaging Plastics has introduced a new DuPontTM Biomax·Strong additive that improves the performance of bio-matrix and biodegradable polylactic acid (PLa) packaging, making packaging plastics environmentally friendly.

Polylactic acid is considered a sustainable alternative to petrochemical derivatives and is extracted and synthesized from agricultural products through fermentation processes. Polylactic acid, which is both a biomatrix and biodegradable, is very popular in specific applications in the packaging industry. This is mainly due to the significant advantages of polylactic acid to meet customers' demand for environmentally friendly packaging materials. As a sustainable alternative, another advantage of polylactic acid is its ability to degrade materials in industrial equipment. However, despite the strong advantages and attractiveness of polylactic acid, there are still performance defects in packaging and industrial products made of polylactic acid compared with petrochemical-derived plastics, including the fragility of materials and the inferiority. Durability.

Utilizing the company's expertise in polymer modification, DuPont has developed Biomax·Strong petrochemical additives that increase the toughness of polylactic acid while improving its friability. Biomax·Strong enhances the impact resistance, softness and melt stability of polylactic acid and greatly improves the performance of the polymer, especially for demanding applications such as thermoforming cast panels and injection molding. . At the recommended 1% to 5% weight level, improved toughness and virtually unaffected transparency make Biomax·Strong better than other competing products.

The company's relevant person in charge said: "Compared with other toughening agents, the clear transparency makes DuPont very competitive in this respect. Within the recommended dosage range, Biomax·Strong has good contact transparency and is better than others. Alternatives provide a more thorough container.” In addition to enhancing the performance of polylactic acid, Biomax·Strong can also meet the needs of degradation in terms of recommended use, which is an important feature of environmentally friendly packaging materials.

He also said: “DuPont is fully committed to developing sustainable solutions, including improving the performance of other sustainable products on the market. By improving the performance of biomatrix and biodegradable products, DuPontTM Biomax·Strong is at a competitive price level. It can help the packaging and industrial products industry achieve high performance results."

Viton·FreeFlowTM Z200 Fluoroelastomer Processing Aid

Viton? FreeFlowTM Z200 fluoroelastomer processing aid was developed by DuPont Performance Elastomers and is used primarily in finished film packaging materials. The processing aid uses polycaprolactone (PCL) as an interface agent and has obtained the “Conformity Statement on Food Packaging Materials Regulations” according to the European Packaging and Packaging Waste Directive 2002/72/EC, which is applicable to EU member states. And countries such as Norway and Switzerland.

Prior to this, the material has been in compliance with the US FDA (United States Food and Drug Administration) regulations, the Canadian Health and Wellness Agency (HPB) and the Japan Hygienic Benzene and Styrene Plastics Association (JHOSPa) under the guidance of the Japanese Food Sanitation Law. Regulatory requirements.

Unique properties of Viton·FreeFlowTM Z200 fluoroelastomer processing aid

“With the adoption of EU regulations, the Viton® FreeFlowTM Z200 is now recognized for its use in food packaging in major markets around the world. This will greatly expand the range of applications for this latest PCL processing aid, with its unique high temperature stability and low odor. And the advantages of compatibility, so that film processors can produce high-quality food packaging film products." DuPont Performance High Performance Elastomers Co., Ltd. related person in charge.

Compared to general processing aids and polyvinyl alcohol (PEG) processing aids, Viton® FreeFlowTM Z200 has good stability at temperatures up to 300 ° C, low odor and less interaction with other additives. It helps to increase film line production and eliminate melt fracture, resulting in a film with good transparency, low turbidity, high gloss, tear resistance and puncture resistance, all of which are important to the food packaging industry. Very important.

In 2002, the Viton® FreeFlowTM Z200 and its sister product Viton® FreeFlowTM Z100 were first introduced to the plastics industry, marking a major breakthrough in processing aid technology. Both products are used in a wide variety of food and non-food grade applications, such as garbage bags, tape casting and other applications where processing efficiency, good visual appearance, and strength and toughness are required. .

DuPont has also developed DuPontTM Surlyn® with high strength, transparency and leak-proof properties, DuPontTM Bynel for good adhesion over a wide temperature range, DuPontTM appeel for easy stripping and hermetic packaging, and more. High performance polymers and additives to meet the needs of a wide range of packaging around the world.

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DuPont Performance Elastomers Ltd. is a global supplier of specialty elastomers with Asia Pacific headquarters in Singapore and is a wholly owned subsidiary of DuPont. The company is an industry leader in chlorinated elastomers and fluorinated elastomers for automotive, chemical, petrochemical, semiconductor, food and pharmaceutical processing, construction, general rubber, wire and cable industries.

New additives make nanocomposite production possible

NaturalNano has launched its new line of PleximerTM products. NaturalNano plans to introduce Pleximer products in the fourth quarter of this year as nanocomposite additives that will deliver better quality, lighter weight materials to the $40 billion polymer compounding industry.

Pleximer products have the following advantages:

Saving capital investment in the production equipment of nanocomposites;

Reduce processing steps, thereby reducing overall production costs;

Improve product quality with reduced costs;

Make the product more rigid, lighter in weight and more consistent in output;

Applying for a patent.

The Pleximer additive consists of sylvester clay nanotubes, which are made by concentrating and mixing different polymer materials using a company-unique process. NaturalNano has a number of applied and pending patents for the use of sylvester nanotubes, including the use of polymers as composites.

Plastics manufacturers now use nanoclay additives to produce stronger and lighter composites, but this is costly. The ever-increasing cost is due to the complex shedding process necessary to separate the clay layers in order to achieve better dispersion characteristics and consistency.

NaturalNano's clay nanotubes do not require a shedding process and can be used on standard equipment. Analysts predict that in 2010, nanoclay will become the largest component of the nanocomposite market.

“Pleximer additives can help composite manufacturers realize their desire to produce nanocomposites for the first time. However, many manufacturers are currently unable to produce nanocomposites because of the considerable investment required in expensive specialized equipment and the production process. Our company's Pleximer products can be used in standard production processes and equipment to make the nanocomposites produced more rigid, lighter in weight and more consistent in output." President of NaturalNano And CTO Dr. Cathy Fleischer said.

NaturalNano's technology is also suitable for a wider range of polymers, and applications will continue to expand.

New light stabilizer

Ciba Specialty Chemicals has introduced its own UV stabilizer, which is said to greatly extend the outdoor life of flexible PVC. According to reports, Tinuvin XT 833 can maintain the properties of flexible PVC for 20 years. This product also makes PVC more competitive in certain applications, such as the use of membrane-structured roofs, which are better than polymers that are highly resistant to cold and heat (such as TPO and EPDM).

Ciba also introduced UV filter packaging. Shelfplus UV 4100 is specially designed to meet the ever-increasing demands of transparent flexible packaging for food, pharmaceutical and consumer products. The product blocks wide-spectrum UV rays from sunlight and fluorescent lighting to protect the stability and appearance of the contents of the package.

Great Lakes Chemical's Lowlite 234 UV Absorbent is a benzotriazole that is highly compatible with PET, which protects the contents of the PET container without compromising the physical properties of the resin. Lowlite 36 is a high molecular weight benzotriazole for clear processing of thermoplastics such as PC, PET and nylon with low extractability and volatility.

Paraffin, PVC antioxidant

Great Lakes' anox ProcessPlus Antioxidant is a phenolic resin blend that minimizes sticking color. The first products were designed for PP and HDPE injection molded and BOPP films. The company plans to continue to develop new products to broaden its application in the next few years. The newly developed products include anox CompoundPlus and anox RecyclePlus. The first batch of anox stabilizer systems is closer to the customer's needs, and the cost and benefit are optimized as much as possible to solve specific problems. The system includes a first layer of hindered phenolic, a second layer of antioxidant, and in some cases a UV stabilizer. The first product, anox FiberPlus, was designed for PP fibers and is said to help the product process at high speeds.

ABS Toilet Flush Panel

ABS Toilet Flush Panel features:

Beautiful Appearance: ABS flush panels offer the advantage of customizable designs and colors to suit the customer's preferences and the overall aesthetic of the bathroom. This allows for a visually appealing Toilet Tank panel.

Strong Durability: ABS material is known for its excellent durability. It can withstand prolonged use without deforming or losing its original shape. Additionally, ABS does not easily discolor over time, ensuring that the flush panel maintains its attractive appearance.

Easy to Clean: The smooth surface of ABS material makes it easy to clean. Regular wiping or cleaning with a soft cloth or sponge can effectively remove dirt, stains, or residue, keeping the toilet flush panel looking clean and well-maintained.

Easy Installation: ABS toilet push buttons are lightweight, which simplifies the installation process. They can be easily installed onto the water tank without the need for complex tools or equipment. This convenience saves time and effort during the installation process.

Strong Corrosion Resistance: ABS water tank panels exhibit excellent resistance to corrosion. They are not susceptible to damage from chemical substances or water erosion. This quality ensures the longevity and reliability of the flush panel, even in environments where exposure to water or cleaning agents is common.

In summary, ABS toilet tank panels offer a combination of aesthetic appeal, durability, ease of cleaning, and convenient installation. These features make ABS an excellent choice of material for toilet tank panels.

ABS Toilet Flush Panel, Plastic Flush Plate, Dual Flush Panel, Toilet Flush Cover Plate

Guangdong Fabia Intelligent Technology Co., Ltd , https://www.fabiaintelligent.com