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Hot melt adhesive is an adhesive that can only be used when heated and melted, usually made of synthetic rubber, petroleum resin and other materials.
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EVA type hot melt adhesive, the general melting point is about 80 degrees, Weixiang hot melt adhesive **** specializes in the production of hot melt adhesive, complete varieties!
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Synthetic resin glue, polyvinyl acetate (PVAC), polyvinyl alcohol (PVA).
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Hot melt adhesive is a type of plastic adhesive.
Within a certain temperature range, it can change with the change of temperature, it is non-toxic and tasteless, and it is an environmentally friendly chemical product. Because the product itself is solid, easy to package, transport and store, solvent-free, non-polluting, non-toxic, with the advantages of simple production process, high added value, high adhesive strength, fast speed, etc., it is a solid glue, which is heated and melted to a certain temperature at room temperature to form a liquid that can flow and has a certain viscosity.
The melted hot melt adhesive is light brown or white, and the hot melt adhesive consists of a base resin, a tackifier, a viscosity modifier, and an antioxidant.
Hot Melt Adhesive Selection Method:
1. The color requirements of the glue are different. If there are no other requirements for the color of the object itself, it is recommended to use yellow hot melt adhesive. In general, yellow hot melt adhesives are more adhesive than white hot melt adhesives.
2. Surface treatment of the substrate. The surface treatment of hot melt adhesive is not as strict as that of other adhesives, but the dust and oil stains on the surface of the adhesive should also be properly treated to make the hot melt adhesive better bond.
3. Operation time. Quick handling is the main feature of hot melt adhesives. The operation time of hot melt adhesives is usually about 15 seconds.
With modern production methods, the use time of hot melt adhesives is required to be shorter and shorter. For example, hot melt adhesives used in book binding and speaker manufacturing require an operating time of about 5 seconds.
4. Temperature resistance. Hot melt adhesives are temperature sensitive. When the temperature reaches a certain level, the hot melt adhesive begins to soften. If it falls below a certain temperature, the hot melt adhesive will become brittle. Therefore, in the choice of hot melt adhesives.
5. When viscosity, the temperature change of the environment where the product is located must be fully considered, which can be divided into early viscosity and late viscosity. Only when the early viscosity is consistent with the later viscosity can the hot melt adhesive and the adhered object remain stable.
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It can be used to stick shoes, hats, food, beverages, instant noodles, cigarettes, beer, medicine and other packaging and sealing, children's diapers, hospital mattresses, elderly incontinence products, etc.
Hot melt adhesive is a kind of plastic adhesive, its physical state changes with temperature within a certain temperature range, and the chemical properties remain unchanged, it is non-toxic and tasteless, and is an environmentally friendly chemical product.
Advantages of hot melt adhesives:
1. Non-toxic, easy to operate, no carbonization phenomenon in continuous use, fast bonding, high strength, aging resistance, non-toxic, good thermal stability, and adhesive film toughness.
2. Good viscosity, no glue, no cracking, is a high-grade hot melt adhesive product, non-toxic, in line with environmental protection requirements.
3. Medium hardness, good toughness, medium fluidity, strong adhesion, easy to operate.
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There are many types of materials that can be glued with hot melt adhesives, such as paper, plastics, plastics, fibers, leather and other materials.
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Hot melt adhesive, generally speaking, is mainly used to stick some plastic or wood items, in addition, it can also be used to paste some metal items.
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Hot melt adhesives can be used to bond various materials such as books, wood, plastics, metals, etc. When using hot melt adhesives, simply melt the glue block or glue stick and apply it to the object to be adhered to, and the bond can be cured in a few seconds.
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Hot melt adhesive is a type of plastic adhesive. It can be used in arts and crafts, electrical appliances, clothing, toys, book packaging and other industries.
In a certain temperature range, it can change with the change of temperature, in a certain temperature range, the physical state of the hot melt adhesive changes with the change of temperature, it is non-toxic and tasteless, it is an environmentally friendly chemical product, and the chemical properties remain unchanged. The adhesive is melted to 180-150 times in the oven and then the composite is pressed against the surface in the oven.
The main uses of hot melt adhesive are: furniture edge banding; home décor; book binding; leather glue; shoe production; Hot melt adhesive tape, etc. It can also be sprayed, which is not possible with any solid hot melt adhesive, so it can be applied to the surface of products of various shapes.
It can also be brushed by hand after heating the small rice cooker, which is very convenient for the application of small products.
Precautions for the use of hot melt adhesives:
1. Selection of hot melt adhesive.
There are many types of hot melt adhesive, we need to pay attention to the color of the glue when using, if there is no requirement for the color of the substrate, you can directly use yellow hot melt adhesive, because it has better viscosity. However, if there is a requirement for color, you can choose white or transparent.
2. Surface treatment.
Before using hot melt adhesive, the surface of the adhesive needs to be cleaned first, although it does not have very high requirements in this regard, but the dust and oil stains on it should also be properly treated, so that the professional can play the role of bonding.
3. Bonding time.
The operation time of hot melt adhesive is very fast, about 15 seconds, and even some are about 5 seconds, so we need to pay attention to the use of the process, and it needs to be completed within the bonding time, otherwise the bonding effect will be lost.
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When decorating, or when making furniture, we need to use a variety of adhesives, and there are many products used for bonding, hot melt adhesive is a more commonly used one, and the following will be introduced to you by pchouse.
1. Introduction. Hot melt adhesive for furniture is a kind of adhesive dedicated to the pasting of man-made panels, it is an environmentally friendly, solvent-free thermoplastic adhesive. When the hot melt adhesive is heated to a certain temperature, it changes from a solid state to a molten state, and when it is coated on the surface of the wood-based panel substrate or edge banding material, it cools and becomes a solid state, bonding the material and the substrate together.
2. Ingredients. The basic resin of hot melt adhesive is the copolymerization of ethylene and vinyl acetate under high temperature and pressure, that is, EVA resin. This resin is the main ingredient in making hot melt adhesive, and the proportion and quality of the basic resin determine the basic performance of hot melt adhesive.
3. Use. There are more and more varieties of hot melt adhesives, and they are becoming more and more widely used, which can bond leather, glass, metal, wood, luggage plastics, medical, textiles, etc., but are mainly used in packaging corrugated paper and thick cartons, wireless binding of books and woodworking welting, etc.
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Hot melt adhesive is a plastic adhesive substance, is a synthetic resin, can change the shape with the change of temperature, hot melt adhesive is colorless and odorless, belongs to environmentally friendly chemical products, and the cost is relatively low, so it is widely used in home manufacturing and textiles.
1. Plastic adhesive
Hot melt adhesive is a plastic adhesive substance, which is an artificial synthetic resin product that appeared in modern times, which is generally made into a cylindrical and spherical solid, which can change its shape with the change of temperature, and is a thermoplastic material.
2. Product features
Hot melt adhesive is colorless, odorless, non-toxic, belongs to an environmentally friendly chemical product, and when the state of hot melt adhesive changes according to temperature, its chemical properties will not change, the production process of hot melt adhesive is simple, easy to package and transport, and the production cost is relatively low.
3. Scope of use
Because of its excellent physical and chemical properties, hot melt adhesive is very widely used in industry, hot melt adhesive has good hot melt and cold setting, so it is widely used in home splicing, bonding, and hot melt adhesive has good softness, so it is also made into fiber fabric.
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Furniture hot melt adhesive is used for wood, furniture laminated wood edge, PVC, melamine resin, etc. It is suitable for all kinds of linear edge banding machines, curve edge banding machines, soft forming edge banding machines, post-forming edge banding machines, etc. Packaging hot melt adhesive is used for automatic carton, carton packaging production, food packaging, flexible packaging, medical packaging, bottle and can labeling, etc. >>>More
Hot melt adhesive film is a derivative product of hot melt adhesive, and their raw materials are the same. 1. What is hot melt adhesive Hot melt adhesive is a polymer material, which is a kind of adhesive that has no viscosity at room temperature, but has viscosity at high temperature, because it does not contain solvents, it is a kind of environmentally friendly adhesive, which is more professional and detailed in Du Niang. 2. What is hot melt adhesive film Hot melt adhesive film is made by melting hot melt adhesive particles, through scraping, coating and blow molding processes by using professional equipment, and its raw material is hot melt adhesive, therefore, hot melt adhesive film is one of the derivative products of hot melt adhesive, and its principle is similar to other hot melt adhesive products (hot melt glue sticks, hot melt adhesive particles). >>>More
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