What are the hot melt adhesive fillers, and what is the purpose and scope of application of hot melt

Fillers for hot melt adhesives include: toner, glitter, calcium carbonate, silica powder, talc, white carbon black, light white carbon black, metal nitride, metal oxide, metal nitride or metal oxide, etc. Miscellaneous:

For netizens to read) 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 it is an environmentally friendly chemical product. The hot melt adhesive is solid at room temperature, and when heated and melted to a certain extent, it becomes a liquid adhesive that can flow and has a certain viscosity, and it is light brown translucent or natural white after melting. Main ingredients:

That is, the basic resin is made of ethylene and vinyl acetate copolymerization under high pressure, and then combined with tackifiers, viscosity modifiers, antioxidants, etc. to make hot melt adhesives. The basic resin of hot melt adhesive is made by copolymerization of ethylene and vinyl acetate under high temperature and high pressure, that is, EVA resin. This resin is the main ingredient in making hot melt adhesives, accounting for more than 50% of its ingredient quantity.

The proportion and quality of the basic resin determine the basic properties of the hot melt, such as the adhesive bonding ability, melting temperature and the selection of additives. Therefore, the EVA hot melt adhesive used for binding paper should be used in a variety with an appropriate ratio of ethylene and vinyl acetate, with a certain degree of softness, elasticity, adhesion and small deformation. Tackifier, tackifier is one of the main additives of EVA hot melt adhesives.

If only the adhesion at a certain temperature is used when the basic resin is melted, when the temperature drops, it is difficult to wet and penetrate the paper, lose the adhesion ability, and cannot achieve the bonding effect; The addition of tackifier can improve the fluidity of the colloid and the wettability of the adherent, improve the adhesion performance, and achieve the required bond strength. Viscosity modifier, viscosity modifier is also one of the main additives for hot melt adhesives. Its function is to increase the fluidity of the colloid, adjust the solidification speed, in order to achieve the purpose of rapid bonding and firmness, otherwise the hot melt adhesive viscosity is too large, can not or is not easy to flow, it is difficult to penetrate into the book, it can not be bonded firmly.

By adding a viscosity regulator with a low softening point, you can achieve the purpose of good penetration and firm bonding during bonding. Antioxidants, the right amount of antioxidants is added to prevent premature aging of EVA hot melt adhesives. Because the colloid will oxidize and decompose at a high temperature when melting, the addition of antioxidants can ensure that the adhesion properties do not change under high temperature conditions.

In addition to the above raw materials, it can also be equipped with some cold resistants suitable for cold zone temperatures or heat resistant agents suitable for tropical temperatures according to the difference in temperature and region.

Wax, calcium carbonate, talc, tackifying resin, masterbatch, and many more.

Hot melt adhesives are used to bond leather, glass, metal, wood, luggage plastics, medical, textiles, etc. Hot melt adhesive is used in plastic, metal, wood, paper, toys, electronics, furniture, leather, handicrafts, shoe materials, coating, ceramics, lampshades, pearl cotton, food packaging, speakers, etc.

Hot melt adhesive strip: mainly used in electronics, handicrafts, glass, packaging, luggage and other industries.

Hot melt adhesive particles: mainly used for filters, furniture edge banding, veneering.

Hot melt adhesive powder: mainly used in the garment industry, playing the role of sticking clothes.

Hot melt adhesive block: mainly used in the luggage industry.

Features of hot melt adhesives:

1. High low temperature resistance.

The hot melt adhesive has good low temperature resistance, can withstand -40 low temperature, and the storage period of the hot melt is up to 2 years, the storage area is small, and there are no special storage requirements; The storage period of the adhesive tape is only half a year, and it must be stored according to certain storage conditions, otherwise it is very easy to mildew.

2. Strong anti-theft performance.

The hot melt also showed a very good anti-theft effect, because the adhesive seeped into the corrugated paper, and all attempts to open the carton were to tear the chemical fibers. The tape can be cut with a knife, inadvertently removing the contents and sealing them again.

3. Beautiful appearance.

Nowadays, merchants require packaging to convey goods and corporate image according to the packaging pattern design design while delivering goods. Therefore, the lower the blocking effect of the appearance, the better. Adhesive tape often blocks the image and affects the transmission of packaging information; The hot melt adhesive is bonded between the folded wings, which can provide more display space.

4. Cost saving.

The advantage of hot melt adhesive is that it is solid at room temperature, easy to handle and carry, and only in the heated state will it become a format.

Hot melt adhesives can be used to adhere to paper, plastics, plastics, fibers, leather and other materials. 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.

Hot melt adhesives. Because the hot melt adhesive itself is solid, easy to package, transport, store, solvent-free, non-polluting, non-toxic, as well as simple production process, high added value, high adhesive strength, fast speed and other advantages.

The adhesion of hot melt adhesive is divided into early adhesion and late adhesion, and only when the early adhesion and later adhesion are consistent, can the hot melt adhesive be stable with the substrate.

Hot melt adhesive is more sensitive to temperature, the temperature reaches a certain level, the hot melt adhesive begins to soften, below a certain temperature, the hot melt adhesive will become brittle, so the selection of hot melt adhesive must fully consider the temperature change of the environment where the product is located.

First of all, the nozzle of the hot melt glue should be cut, then inserted into the glue gun, and the switch button of the glue gun can be opened to be aimed at the use part normally. Or use a lighter to heat the hot melt adhesive and then apply it to the place where it needs to be used, and then apply it evenly, and then glue it.

When using hot melt adhesive in winter, the first thing to pay attention to is the temperature, so the temperature of the use range should be kept above 15 degrees in order to be able to exert its characteristics, and the phenomenon of glue opening is likely to occur.

If you use a melter for union, then you should also pay attention to the temperature inside the machine, which should be more than 10 degrees to 20 degrees.

At the same time, it should be noted that the quality of hot melt adhesive is the quality of the glue, many glues on the market contain formaldehyde, so it is recommended that you choose some of the best when choosing, so as to be more environmentally friendly.

The hot melt adhesive is flame-proof, anti-fire, and has no harm to the human body.

When the hot melt adhesive is constructed, its curing speed is relatively fast, and its adhesion and flexibility are relatively good, so it does not need to spend most of the time to bond.

The life of hot melt adhesive is relatively long, and it has the performance of water resistance and moisture resistance, and it is also relatively cheap.

The gloss of the hot melt adhesive is relatively good, and it is also more convenient when storing, and there is no great requirement for the storage environment.

There are many types of glues on the market today, and hot melt adhesives are one of them. So the question is, do you know what materials can be glued to hot melt adhesives? What are the advantages and disadvantages of hot melt adhesives? Next, let me give you a brief introduction to the relevant knowledge of hot melt adhesives.

1.In the field of shoe materials: hot melt adhesives are suitable for composite bonding of shoe uppers, leather, pound cloth and other materials.

2.In the automotive field: hot melt adhesives are suitable for composite bonding of materials such as car headliners, floor mats and seats.

3.In the field of packaging: hot melt adhesives are suitable for the bonding of cartons, plastics, aluminum foil and other materials.

In addition, it can be used in the field of building materials, decoration, electronics, clothing, etc., and its use is expanding.

Advantages of hot melt adhesives:

1. Hot melt adhesive is not only non-toxic, but also easy to operate, no carbonization phenomenon after long-term use, and has the advantages of fast bonding, aging resistance, and non-toxicity.

2. In addition, it has good viscosity, does not crack, and meets environmental protection standards, so it belongs to high-end products.

3. Of course, the most noteworthy thing is that it has moderate hardness, good toughness, strong adhesion and easy operation.

Disadvantages of hot melt adhesives.

1.Of course, shortcomings are inevitable. For example, it has limited properties, heat resistance and adhesion, and poor chemical resistance. Therefore, proper modification of the hot melt adhesive matrix can improve the heat resistance and strength of the hot melt adhesive.

2.In addition, it cannot be painted by hand, because not only can not achieve the final effect, but also waste the rubber material, so special equipment is needed to melt and apply the sizing, such as: hot melt gun, etc., which is inconvenient in use and restricts the use and promotion.

3.The most noteworthy thing is that the bonding process is affected by the weather and the season. For example, wettability is poor in winter and curing is slower in summer.

Summary: After reading the above introduction, I believe you have a further understanding of what materials can be glued with hot melt adhesive. If you need to know more about it, please continue to ******, and more exciting content will be presented to you in the future.

Dear, hello, there are many types of materials that can be glued to hot melt adhesives, hot melt adhesives can be used to stick paper, plastics, plastics, fibers, leather and other materials, and even under this foundation, its scope of application is still expanding. For example, under the slight bonding demand, hot melt adhesive can form a good adhesion for some metal materials, but it is only a temporary effect. This kind of material is a moldable adhesive material, and it has a wide range of uses, and may be used in various fields of our lives, including packaging, transportation, decoration, construction, vehicles and other directions.