What is the composition of edge banding hot melt adhesive?

Elastomers, tackifiers, plasticizers and antioxidants should be used.

Thermoplastic polymer-based hot-melt adhesives can be made into granules, films, rods, and other forms. At room temperature, it is 100% solid without solvents.

The raw materials of hot melt adhesive are easy to obtain, and the preparation process is relatively simple.

Example of a hot melt adhesive formulation.

Polyethylene (medium molecular weight).

Polyisobutylene. Butyl rubber. Microcrystalline wax.

In the formulation, polyethylene is used as the matrix material of the hot melt adhesive, and polyisobutylene and butyl rubber are added to prevent the polyethylene from being dispersed in the hot microcrystalline wax and increase the cohesive strength of the hot melt adhesive. Polyisobutylene has high molecular weight and small dispersion, which mainly plays the role of increasing cohesion strength; Butyl rubber has large dispersion and low molecular weight, mainly playing the role of plasticization and anti-crystallization.

Uses It is suitable for the bonding of most plastics themselves or between plastics and metals, ceramics, glass, rubber and other materials.

Edge banding hot melt adhesive.

It is a class of man-made panels.

Adhesive for adhesives, which 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 to the substrate.

Edge banding hot melt adhesive features.

1.The solid content is 100%, and there is void filling, which avoids the deformation, dislocation and shrinkage of the adhered parts caused by edge roll-up, bubbles and cracking. Because it is solvent-free, the moisture content of the wood does not change, and there is no risk of fire or poisoning.

2.The bonding is fast, the interval between gluing and bonding is only a few seconds, the saw head and trimming can be completed in 24 seconds, no drying time is required, and it can be used in a continuous and automated wood bonding line, which greatly improves the production efficiency and saves plant costs.

3.It is versatile and suitable for bonding a wide range of materials.

4.It can be bonded several times, that is, the hot melt adhesive is applied to the wood, and when the requirements are not met due to cooling and curing, it can be reheated for secondary bonding.

5.There are high-temperature, medium-temperature, low-temperature and other furniture edge sealing hot-melt adhesives to choose from.

It is a solid adhesive made by ethylene-vinyl acetate copolymer (EVA) as the main material, adding tackifier and other components. It has fast bonding, high strength, aging resistance, non-toxicity and good thermal stability.

1.Polymer matrix

The main components of hot melt adhesives play a key role in the performance of hot melt adhesives.

Main types: ethylene and its copolymers, polyolefins, polyesters, polyurethanes, polyamides, styrene and its block copolymers, and other polymers.

Effect on hot melt adhesive properties: adhesive strength, melt index, softening point, viscosity, flexibility, curing speed, thermal stability reaction.

2.Tackifiers

Improves wettability and tackiness.

Main types: rosin and its derivatives, terpenes and modified terpene resins, petroleum resins.

Effect on the properties of hot melt adhesive: the reaction is in the adhesive wettability, initial viscosity, adhesive strength, viscosity, heat resistance, exposure time.

3. Viscosity modifier

Increase the fluidity of the colloid, adjust the coagulation speed, and achieve the purpose of fast bonding and firmness.

Main types: paraffin, microcrystalline wax, synthetic wax.

Effect on the properties of hot melt adhesives: melt reaction index, fluidity, exposure time, creep resistance, flexibility, melting speed, self-adhesive properties, cohesion strength, adhesive strength

4.Antioxidants

Improve the thermal stability of hot melt adhesives.

Main species: phenol and its derivatives.

Influence on the properties of hot melt adhesives: reaction heat aging speed, viscosity stability, color stability, adhesive strength.

5. Plasticizer

Improve the brittleness and flexibility of hot melt adhesives.

Main types: aliphatic mineral oil, dioctyl phthalate, dibutyl phthalate, liquid paraffin.

Effect on the properties of hot melt adhesive: reaction in hardness, modulus, brittleness, elongation, flexibility, flexibility

6.Packing

Improve performance and reduce costs.

RightHot melt adhesives

Effect of performance: reaction in terms of heat resistance, heat capacity, shrinkage, permeability, self-viscosity, fluidity, viscosity, crystallization speed, adhesive strength, peel strength, etc.

Summary. Hello! I'm glad to answer your question about the difference between hot melt adhesive edge banding and PUR edge banding

Hello, the difference between hot melt adhesive edge banding and PUR edge banding is as follows:

1. Different ingredients: The main component of PUR is terminal isocyanate polyurethane prepolymer, and the main component of EVA hot melt adhesive, that is, the basic resin is made of ethylene and vinyl acetate copolymerization under high pressure, and then combined with tackifier, viscosity adjuster, antioxidant, etc. to make hot melt adhesive.

2. Different characteristics: PUR's adhesion and toughness are adjustable, and it has excellent bonding strength, temperature resistance, chemical corrosion resistance and aging resistance. EVA hot melt adhesives are usually solid at room temperature, melt into a liquid when heated to a certain extent, and quickly become solid once cooled below the melting point.

3. The scope of application is different: PUR glue is designed to adapt to a variety of different weights of printing paper, plastic film varnish and ink and other materials, EVA hot melt adhesive for electrical appliances, hardware tools, toys, handicrafts, tourism products, stationery, cosmetics.

The difference between hot melt adhesive edge banding and PUR edge banding.

Hello! I am glad to be able to answer for you, about the question of "the difference between hot melt adhesive edge banding and PUR edge banding", I have given you the following answers: Hello, the difference between hot melt adhesive edge banding and PUR edge banding is as follows:

1. Different ingredients: The main ingredient of PUR is terminal isocyanate polyurethane prepolymer, and the main component of EVA hot-melt orange glue, that is, the basic resin is made of ethylene and vinyl acetate copolymerization under high pressure, and then combined with tackifier, viscosity adjustment agent, antioxidant, etc. to make hot-melt adhesive. 2. Different characteristics:

PUR has adjustable adhesion and toughness, and has excellent bond strength, temperature resistance, chemical resistance and aging resistance. EVA hot melt adhesives are usually solid at room temperature, melt into a liquid when heated to a certain extent, and quickly become solid once cooled below the melting point. 3. The scope of application is different

PUR glue is designed to adapt to a variety of different weights of printing paper, plastic film varnish and ink and other materials, EVA hot melt adhesive for electrical appliances, hardware tools, toys, handicrafts, tourism products, stationery, cosmetics.

Hello! It is my honor to be able to answer for you, your trembling posture will be my infinite motivation to move forward, if you agree with my answer, please be timely and give me a thumbs up. It is not easy to answer the question, and Xie Zhi will not be able to solve it.

The chemical components contained in the edge banding glue are urea-formaldehyde resin and formaldehyde, and there will be a pungent smell if used too much, and the types of edge banding glue include silicone sealant, polyurethane sealant, polysulfide sealant, acrylic sealant, etc.

The types of edge banding glue include edge banding hot melt adhesive, mirror edge anti-oxidation edge banding glue, white wood edge banding glue, edge banding hot melt adhesive is mostly used in the bonding of man-made panels, mirror edge anti-oxidation edge banding is used to prevent edge oxidation, and white wood edge banding glue is mostly used in wood homes in order to prevent unsightly bonding.

Summary. Hello, the use of hot melt adhesive is to bond leather, glass, metal, wood, luggage plastic, medical, textiles, 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.

Because the product itself is solid, it is easy to package, transport, store, solvent-free, non-polluting and non-toxic.

What is the use and application of hot melt adhesive?

Hello, the use of hot melt adhesive is to bond leather, glass, metal, wood, luggage plastic, medical, textiles, 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. Because the product itself is solid, it is easy to package, transport, store, solvent-free, non-polluting and non-toxic.

Hot melt adhesives are commonly used to bond various handmade materials, in fact, in addition to being used as an adhesive, hot melt adhesives are very powerful.

Summary. Hello, I have seen your question and am sorting out the answer, please wait a while Why is the hot melt adhesive of the edge banding machine available in two colors.

Hello, I have seen your question and am sorting out the answer, please wait for a while 1. Select the color, generally there are two colors of hot melt adhesive: yellow and white. Generally speaking, yellow hot melt adhesive is better than Yuduan white hot melt adhesive. 2. Temperature resistance, generally speaking, the temperature resistance of hot melt adhesive is not very good, if the temperature is too high, it will soften; If the temperature is too low, the hot melt adhesive will become brittle.

Therefore, the change of temperature around the town should be considered when selecting hot aerosols.

Hot melt adhesive is composed of basic resin, tackifier, viscosity modifier and combustion containing antioxidant ingredients

1. Basic resin: it is made of ethylene and vinyl acetate copolymerization at high temperature and high pressure, resin is the main component of making hot melt adhesive, and the proportion of basic resin determines the basic performance of hot melt adhesive, such as the adhesive ability of glue, melting temperature and the selection and preparation of additives, etc., all of which are determined by the proportion of basic resin;

2. Takifier: one of the main additives of hot melt adhesive, the purpose is to increase its adhesion performance, and also improve the fluidity of the colloid, so as to enhance the wetting and penetration ability of the colloid to the adhered object, improve the bond strength, and meet the needs of the burnt strength of several segments of the bond;

3. Viscosity adjuster: one of the main additives of hot melt adhesive, choose a viscosity regulator with low melting point, its function is to reduce the melt viscosity, increase fluidity, wettability, adjust the solidification speed, in order to achieve the purpose of rapid bonding and firmness;

4. Antioxidants: The colloid will oxidize and decompose due to high temperature when melting, and adding an appropriate amount of antioxidants can prevent the premature aging of hot melt adhesives. Moreover, under high temperature conditions, adding an appropriate amount of potato deficiency antioxidant can ensure the bonding effect.

Composition of hot melt adhesive: It is composed of basic tree ballast resin, tackifier, viscosity modifier and antioxidant.

Basic resin: The basic resin of hot melt adhesive is the copolymerization of ethylene and vinyl acetate under high temperature and high pressure, and this resin is the main component of hot melt adhesive.

Tackifier: Tackifier is one of the main additives for hot melt adhesives. The addition of tackifier can improve the fluidity of the colloid and the wettability of the adhered object, improve the cohesiveness, and achieve the required bond strength.

Viscosity modifier: It is also one of the main additives for hot melt adhesives. It is to increase the fluidity of the colloid and adjust the solidification speed, so as to achieve the purpose of rapid bonding and firmness.

Antioxidants: The right amount of antioxidants is added to prevent premature aging of hot melt adhesives.