The packaging materials can be divided into ten categories: 1, nano-packaging materials 2, metal-based composite materials 3, bio-polymer materials 4, silicone and fluorine-based materials 5, new plastics and plastic alloys 6, metal foils and Profile 7, functional polymer material 8, surface modification material 9, organic optoelectronic material 10, resin-based composite material, today Xiaobian for everyone to explain these materials:
1. Nano packaging materials
Nano-packaging materials are relatively hot research directions in recent years, and are an emerging packaging material. The Shijiazhuang non-woven bags report mainly include nano-composite packaging materials, polymer-based composite packaging materials, and nano-type antibacterial packaging materials. At present, the most researched nanocomposite packaging material is polymer-based nanocomposite (PNMC), which has obvious improvement and enhancement of plasticity, wear resistance and hard strength; in polymer-based nanocomposite packaging materials, The polymer layered inorganic nanocomposite packaging material has been rapidly developed due to the breakthrough of the enamel layer technology, and some research results have begun to enter the industrialization or have attracted much attention due to the great industrial application prospect; for the nano inorganic and inorganic antibacterial packaging materials It has obvious characteristics: long-lasting antibacterial ability, broad spectrum of antibacterial properties, excellent killing rate, antibacterial agent for human and animal safety, stable physical and chemical properties of antibacterial products, and low cost of antibacterial agents.
2. Metal matrix composites
Metal matrix composites have high strength, high modulus, high temperature performance, good electrical and thermal conductivity, and are especially suitable for aviation and other industrial sectors.
Metal-based composite technology has advanced rapidly, and there are many methods. Shijiazhuang packaging bags, mainly used for composite metals are Ti, Ni, Cu, Pb, Ag, especially light metal based Al, Mg, Ti and so on.
Composite materials are metals, non-metals and other compounds.
3. Biopolymer materials
Biopolymer materials have entered experimental stages such as artificial blood vessels, artificial hearts, artificial valves, artificial lungs, artificial tendons, artificial bones, and the like. The application of biopolymer materials in packaging is expanding. For example, microbial (bacterial) plastics, biodegradable plastics, and glazing plastics are hot topics in the packaging world today.
4. Silicone and fluorine materials
Silicon-based polymer materials are new materials in the 21st century. At present, on the basis of molecular design and molecular structure control, the synthesis reactions such as defluorination condensation and hydrosilane methylation are discussed, and molecular diversified functional materials are developed to develop optoelectronic functional materials for high-grade composite filming equipment. Silicone is an excellent ecomaterials for aerospace, automotive, construction, bioengineering and other high-tech applications. The next stage of the goal is to improve molecular design and synthesis techniques to optimize silicone functionalization, polymer synthesis and material preparation techniques.
Fluorine-based materials have made good progress in packaging applications. For example: high strength, functionalization, high stability of PTFE, thermal stability of PEA, functional film of PVDF.
In addition, fluorine-based polymers having excellent piezoelectricity, antistatic property, radiation resistance, and abrasion resistance have been introduced.
5. New plastics and plastic alloys
In China, engineering plastics such as polysulfone, polyphenylene sulfide, polyether ether ester, polyacrylamide and polyarylate have been developed and applied well. Foreign polycarbonate, polyester, polyphenolamine, and polyoxymethylene still dominate the market. Among them, polycarbonate is the fastest growing. Engineering plastics mainly study modification and application, alloying technology, composite technology and processing technology. Plastic alloys mainly study interpenetrating networks, graft copolymerization and block copolymerization, molecular compounding techniques, reactive extrusion, inter-blending and physical mixing in alloying technology.
In foreign countries, PBT and PET alloys have the fastest development, especially in automotive and automation equipment and electronics.
There are mainly reports of PBT/ABS, PBT/PC, PBT/silicone, PBT/PPE, PBT/PET, PBT plastic alloys for the manufacture of special high-strength packaging containers, while the US PET alloy (LCP10%) outperforms PET. Many, also started to apply in the packaging.
6. Metal foil and profile
Due to the development of thinning technology, the types of metal foils have increased greatly. The main varieties are gold foil, copper foil, aluminum foil, tantalum foil, tantalum foil, silver foil, zinc foil, iron foil, and various alloy foils such as Ni-CR. . There are three development directions for metal foil: super long, super thin, super thin; porous cavity; composite.
The development of profiled materials is also very rapid, and various shaped (such as complex honeycomb) materials can be produced, and the profiles are becoming thinner, lighter and functional. Profiles, especially paper honeycomb materials, are also used in the packaging field, and the prospects are promising.
7. Functional polymer materials
There are several major categories of functional polymer materials: (1) electrically functional polymers such as conductive materials; (2) optical functional molecules such as photoconductive materials, gradient-index polymers; (3) chemical functions such as catalytic materials, Adsorption materials; (4) magnetic functions such as magnetic polymer materials; (5) mechanical functions such as separation membranes in mass transfer functional materials, oxygen-rich membrane polymer materials; (6) biological functions such as biomedical polymer materials, biodegradation Materials (heat shrinkable film), heat resistant polymer materials, thermochromic materials; (7) smart polymer materials (such as polyfluorene, poly warm pheno, polyaniline) and so on.
8. Surface modification materials
Modern modified materials come in a wide variety of materials, including metallic, non-metallic, ceramic, plastic and multi-component composites. The surface modification of new materials used in the packaging industry is relatively more. For example, in order to improve the condensation performance of the packaged plastic film, a vacuum thin film deposition (PVD) technique is used to "coat" a very thin aluminum film on the surface of the plastic, and a silicon oxide film, etc.; the plastic film is processed by laser scanning; Surface modification of electrolytic iron foil to enhance material properties.
9. Organic optoelectronic materials
The newly developed varieties of organic optoelectronic polymer materials are: organic photochromic polymer materials, non-linear optical materials of Shijiazhuang plastic bags, photosensitive refractive materials, polarized polymer materials, selective light-transmitting polymer materials, photoelectric conversion functional materials, piezoelectric Functional polymer materials, etc. Non-linear optical polymers (NLO), gradient-index polymers (such as methyl benzoate esters, vinyl benzoate, etc.) have also made great progress, so the application of organic optoelectronic materials in special packaging is very potential.
10. Resin-based composite materials
There are many types of polymer composite materials which are compounded with a resin as a matrix, such as various fibers, granules or films. Such as adding conductive fiber composite into conductive functional material, absorbing functional material, adding ceramic, glass fiber and carbon fiber composite reinforcing material, or multi-layer composite of different resin film into composite material, etc., its application field is very wide; There are more than 30 types of fibers commonly used in the model. The main organic layer composite, coextrusion composite, hybrid composite and other types of composite materials have been widely used in packaging.
Post time: Jun-29-2017