PVA Film Manufacturer Series

PET: Poly(ethylene terephthalate) English: Poly(ethylene terephthalate) PETG: Cyclohexanediol (co-polyester) English: Polyethylene Terephthalate (PETG) Compared with PET, the biggest feature of PETG is that PETG is environmentally friendly With the concept of food FDA certification, PETG is currently receiving more and more attention from related products at home and abroad. The polycondensate of PET polyethylene terephthalate is mainly used in food packaging films and textile fibers and other applications. Now, its use as a packaging material is increasing, not only for soda beverage bottles, but also for amorphous PET (APET), crystalline PET (CPET) cans and dishes. In the past five years, engineering grade PET and copolyester, as new polymer products, have been used in engineering and special packaging materials, respectively. The successful application of PET in soda beverage packaging materials is due to its toughness and transparency, orientation ability, excellent economic value and the development of high-speed bottle processing technology. PET beverage cans have light weight, shatter resistance, reusability and good air tightness. A filled 2 liter PET beverage bottle is 24% lighter than a similar glass bottle; the weight of an empty bottle is 1/10 of the same type of glass bottle. It saves labor, energy and costs in all links from the manufacturer to the consumer. PET for chemical and performance beverage bottles is produced from terephthalic acid (TPA) obtained from the oxidation of p-xylene. Terephthalic acid is purified or reacted with methanol to produce dimethyl terephthalate (DMT), or further oxidized to produce pure terephthalic acid (PTA). Another basic raw material of PET is ethane, which is converted into ethylene glycol (EG) by reaction. PET is a polycondensate formed by the polymerization reaction of DMT (or PTA) and EG in the continuous molten state, and then in the solid state polymerization process, large crystal grains, final molecular weight and inherent viscosity are obtained. This solid state process also keeps the ethanol content of the polymer sufficiently low. The general commercial PET resin melts at about 480F (), but the melting point of high crystalline PET is about 520F (). Oriented crystalline PET has excellent strength. Toughness and transparency, and resistance to weak acids and alkalis and many solvents. It is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service. Interested parties welcome to inquire! Contact: Wen Feng 13728425799

The high-barrier film antistatic film made by the coating method Source: protective film factory direct sale Release time: 2019-09-28 Hits: 1209 Today's world has entered the information age, electromagnetic waves of various frequencies and wavelengths fill the entire earth's space. Electromagnetic waves will cause different degrees of interference to unshielded sensitive electronic components, circuit boards, communication equipment, etc., resulting in data distortion and communication disorder. The static electricity generated by electromagnetic induction and friction will have a destructive effect on various sensitive components, instruments, and certain chemical products, such as high-voltage discharge due to the accumulation of static electricity in the packaging film. Therefore, the development of antistatic PET packaging film is also very important. important. The antistatic film is characterized by adding a certain antistatic agent to the PET film to form a very thin conductive layer on the surface of the film and form a continuous phase to improve the surface conductivity and make the generated charges leak as soon as possible. Shrink film has the characteristics of easy recycling, non-toxic, odorless, and good mechanical properties. Foshan Bowei Environmental Protection Material Co., Ltd. is an electronic material supplier with 20 years of experience. It can produce PET film with multiple functions, such as: sub-(matte) PET film, flame-retardant (fire-resistant) PET film, inkjet printing Film, anti-static PET film, anti-fog PET film, anti-UV PET film, non-shrinking PET film, PET release film, optical PET film, etc. Interested parties welcome to inquire!

What kind of film is Pet film? What are the applications of Pet film? Source: Protective film factory direct sales Release time: 2017-12-23 Hits: 2098 　　 As a release film manufacturer, PET film is an undesirable material. What kind of film is the pet film? What is the use of PET film? Let's take a look together today.　　PET film is also known as high temperature resistant (polyester) PET film. The stability of physical and chemical properties is high, and it is highly transparent and recyclable, so it has a wide range of applications. Specific application areas include magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration, screen protection, optical-grade mirror surface protection, etc. The types of PET film are distinguished by function: PET film (original film) and functional film after PET film secondary processing, such as (PET release film, PET high-gloss film, PET transfer film, PET reflective film, PET antistatic film, PET heat Sealing film, PET heat shrinkable film), etc. Advantages of PET film: 　　①It has good transparency, light transmittance is not less than 92%, and it is shiny; 　　②Air tightness and fragrance retention; 　　③PET film has excellent mechanical properties, manifested in strong toughness, high tensile strength and high impact strength ; And good strength, stable size, suitable for secondary processing; 　　④PET film also has excellent heat resistance, cold resistance and good chemical resistance and oil resistance.　　 PET film shortcomings: 　　①not resistant to strong alkali; 　　②easy to be charged with static electricity, anti-static is an important subject of research and development 　　③medium moisture resistance, moisture permeability decreases at low temperatures.

Thermal curing and UV curing technology of PET optical film coating Source: Protective film factory direct sales Release time: 2019-11-05 Click: 1606 The preparation of optical film, the curing method can be divided into thermal curing and UV curing. Thermal curing is a more traditional and common curing method. Generally speaking, thermal curing is not easy to cause serious volume shrinkage due to curling, which will generate shrinkage stress and affect the strength of the coating. However, thermal curing requires a long period of time and labor intensity, and it is also prone to environmental pollution problems for solvent-based coating liquids. The UV curing is summarized as having the characteristics of '5EThe disadvantages of UV curing are: the curing process of free radical photocurable coatings is easily inhibited by oxygen, and the surface curing is not good; the ultraviolet light band is different, and the depth of irradiation is different, which will make the inside of the coating not fully cured, thereby making the coating The bonding strength at the interface with the substrate is insufficient. At this stage, some people often use a dual curing method combining heat curing and light curing, that is, light curing is used to quickly set the system or achieve 'surface dryness, Thereby expanding the application range of the light curing system; for solvent-based coating fluids, you can also place it at high or medium temperature for a while to volatilize the solvent, and then place it under ultraviolet light to avoid solvent residue on the coating. In the system, the bonding strength or other properties will be affected, and the curing time will be shortened, and the efficiency will be improved. Foshan Bowei Environmental Protection Material Co., Ltd. is an electronic material supplier with 20 years of experience. It can produce PET film with various functions, such as: sub-(matte) PET film, flame-retardant (fire-resistant) PET film, inkjet printing Film, anti-static PET film, anti-fog PET film, anti-UV PET film, non-shrinking PET film, PET release film, optical PET film, etc. Interested parties welcome to inquire!