Secrets of stationery glue: what it is made of and why. Glue for application practice Types of adhesive compositions

Glue is a composition of components that demonstrate the ability to reliably connect surfaces of different properties to each other. Let's take a look at what is chemical composition and functional features various kinds glue, and determine the scope of their application.

What is gluing?

Chemistry is a very complex science, but chemical elements surround us everywhere, so it is important for a person to understand the nature of the main processes occurring due to the laws of chemistry. What benefits does the chemistry around us have for a person “we will talk about the chemical composition of the glue” later, as well as what gluing is and with what substances it can be carried out.

By gluing, several surfaces are connected into a single whole. Moreover, this process is not particularly difficult, if you understand the property of the selected type of adhesive composition. With the help of such means, it is possible to ensure a tight, tight and reliable connection of products of various shapes and sizes. In a word, almost everything around us can be glued together.

But in order for the gluing results to be as effective as possible, you need to know what type of glue to use in a particular case. After all, the chemical composition of each product is different.

Types of adhesives

Today you can find a large number of different types of adhesive compositions, which differ in chemical composition and basic properties. All of them are conditionally divided into two groups:

• natural. These include natural (products based on starch, dextrin, vegetable proteins, resins) and mineral compounds (aluminophosphate, ceramic, silicate, metal);
• synthetic or polymer adhesives are created by mixing various components, following the laws of chemistry. For example, e-tack or Moment.

The following types of adhesive compositions are most often used in everyday life and industry:

• PVA is actively used in everyday life, office, construction. Surfactant is relevant for gluing paper surfaces and paper-based materials (wallpaper, cardboard, etc.), wood, leather, glass, and so on;
• glue stick is an innovative tool in the office. The pencil is easy to use, easily copes with paper surfaces. According to the chemical composition, pencils are different: the version from the PVA group contains water and polyvinyl acetate, and from the PVP group they do not contain water;
• polyurethane composition, Moment, e-tack, chemical contact 88 and others are intended for gluing rubber products, leather and many other materials;
• glue "Titan" for gluing surfaces made of foam, glaze, wood, PVC, leatherette;
• tile adhesive when arranging the interior decoration of premises, as well as facing the facades of buildings and structures for various purposes ceramic tiles.

The chemical composition of popular types of glue

From the presence of one or another component in the composition of the adhesive, the agent may acquire or lose certain qualities. This is important to remember when choosing an adhesive product for specific surfaces. In case of the wrong choice, you will not get a reliable, tight and durable connection, since the chemical composition of the agent will not be able to provide the future connection with current qualities.

Let us briefly describe the main components of different types of glue:

• The chemical composition of polyurethane adhesive is as follows. The main components of such products are aromatic or aliphatic isocyanates, hydroxyl-containing oligomers. In addition, in the chemical composition of the polyurethane adhesive, one can find a curing initiator (water, alcohol) in a small amount and a filler (for example, titanium dioxide. In order for the components to be better combined with each other, the polyurethane product may also contain substances that regulate its viscosity: solvent, synthetic resins or surfactants.
• The chemical composition of PVA glue is as follows. The product is 95% made on the basis of polyvinyl acetate. This component can be obtained from vinalone, a synthetic substance based on polyvinyl alcohol. Depending on the area in which PVA is used, a plasticizer can also be found in its dispersion. Such a PVA component makes up 1.5-5% of the total mass of the adhesive and provides the joint with high plasticity, resistance to low temperatures, and durability;
• The chemical composition of titanium glue is simple. Titan is based on vinyl acetate copolymers in an organic solvent.

The chemical composition of tile adhesive is as follows: the main binder component, cement, is mixed with sand and plasticizers. Sand in the tile composition is responsible for the strength of the joints, and plasticizers give the seams between the tiles high plasticity.

Choosing a glue stick

Everyone has long known what a glue stick looks like and how convenient it is to use. However, not everyone knows what to look for when choosing the right adhesive. In this article, we will not “pour water”, talking about the composition of a high-quality glue stick - we are not chemists, so the information is only to the point. We only note that the glue stick can be labeled: PVA (water is used as a moisturizer) or PVP (glycerin is used as a moisturizer). PVA glue is cheaper, but dries quickly with a loose cap.

Several good advice and lo and behold, you are the proud owner of a quality product.

So got the glue stick wide use and for a long time strengthened in the life of each of us. It will definitely be needed for office work. At home, it is convenient for them to glue documents, receipts, etc. Unlike liquid glue - PVA or silicate - the glue stick does not deform the paper, does not leave yellow, which will allow the papers to be better preserved. Glue stick is more convenient to apply on the surfaces to be glued. It dries quickly and doesn't stain your hands.

• Remember! The quality of the product, first of all, is indicated by its smell. It is better to refuse glue if you smell sharp notes of chemicals in the smell. Such a product can be simply dangerous. This is especially important to consider if the glue is intended for children!

• High-quality glue, when completely twisted out of the tube, should not fall out, and its structure should be homogeneous, without lumps. To determine the quality, it is enough to apply glue to the surface in a wide and narrow strip and make sure that it does not spread.

• When buying a glue stick, also pay attention to the cap. It must be tightly closed, otherwise the glue will quickly lose its properties.

• good glue sticks paper to paper or cardboard in 3-4 minutes. When you try to peel off the paper delaminates and tears.

Innovations and novelties are already on sale

Don't be alarmed if the glue changes color when applied to the paper, it will disappear in about 30 seconds. New items such as chameleon glue appeared on sale, which, after being applied to the surface, changes color, indicating the place of gluing.

The glue stick can have a modified stick shape, for example, a triangular one. This will allow you to glue places inaccessible to a regular stick.

Not so long ago, the so-called "children's glue" appeared on sale. The basis of its composition is glucose, therefore, if it enters the child's body, it will not cause poisoning.

The TekhnoYug online store offers a wide range of high quality adhesive sticks.

The economical price segment is represented by products of two brands - Economix (Germany) and Delta (Germany). The middle price segment is represented by Axent (Germany), Pilot (Japan) and Kores (Austria) trademarks.

Our adhesive products do not contain solvents and toxins, are easily washed off hands and tissues, and most importantly - safe for children!

In the creation of handmade products, in the office and at the school desk, you cannot do without stationery glue. This substance holds paper together different types cardboard, photographic paper, with its help, handmade creations are decorated with ribbons, beads, buttons. Stationery glue is also used in everyday life, as some of its types can glue leather and wood. What is the composition of the adhesive specifications, and what forms modern industry provides us with - read on.

Glue and its types

Man discovered and used the adhesive substance already 11 thousand years ago. At first it was made from components of animal origin. Now there are effective formulations with artificial components. They are safe and can be used for children's creativity.

Stationery glue, although it has one main task - to glue objects - is presented on the market in several forms that differ in composition and appearance. What glue can be found on the counter today:

• liquid,
• spray,
• ribbon.

It is conditionally possible to divide stationery glue into liquid and solid. The liquid type includes PVA and. The solid comes in the form of a stick-on roller. Of the types of products that have recently appeared on the market, adhesive web tape should be distinguished. It is used in applications for gluing fabric and leather by heating with an iron. Aerosol adhesive spray is easy to use: it is easy to apply and evenly distributed over the paper.

Specifications

Stationery glue has many forms that differ in appearance, composition and application. However, you can identify the general technical characteristics of the substance:

• glue is of mineral origin,
• universal in its field of application (for any type of paper, cardboard, decorative elements),
• dries quickly
• does not emit unpleasant odors,
• economically spent
• frost-resistant.

The color of the substance varies from transparent to white and yellowish. When dry, good glue becomes transparent. The differences are also in the rules of operation and storage periods.

Important! Although the manufacturer claims that eating any type of adhesive product will not cause harm to a person, you should still carefully protect the substance from small children, and explain the rules of use to those who start using it.

Composition

The name PVA universal glue stands for polyvinyl acetate. An aqueous solution of this substance is stationery glue. The composition also includes plasticizers and modifying additives. The consistency and color of the glue resembles liquid sour cream. PVA is found in three types of packaging: a regular tube, packaging with a dispenser cap or a special brush. The second and third species are stored longer.

Silicate glue is used much less frequently. It is potassium or sodium hemisilicates dissolved in water. It is based on liquid glass. The low popularity of this type is due to the fact that the glued paper begins to turn yellow over time, unlike PVA, which remains colorless.

Solid stationery adhesive is also made from polyvinyl acetate (PVA) or polyvinylpyrrolidone (PVP). This type is more convenient than others: it cannot be shed. It is difficult to accidentally deform the paper with it: the pencil contains glycerin, which ensures the smooth sliding of the roller over the surface. However, this form is not universal: it is possible to glue paper, cardboard and some types of textiles with high quality. For working with wood and.

Spray adhesive allows you to work with paper, textiles, polystyrene, wood. The spray is easy to apply, does not leave stains, does not smell.

Advice! If you need to fix a spray-bonded work, you can do so within 12 hours.

Application

Adhesive mass, whether it is a bottle of liquid PVA or modern pencils and tapes, finds many applications both in everyday life and in creativity.

1. Its main task is gluing paper, cardboard. Resistant compositions are suitable for working with plastic, wood, decorative elements.
2. Indispensable glue for children's creativity: in kindergartens and primary schools the substance is necessary for creating applications, crafts - that is, for the realization of children's fantasies. You can glue not only paper, but also other items: buttons, beads, leaves and tree branches, fabric.
3. Handmade lovers also cannot do without an adhesive mass. The substance is used in such types of arts and crafts as scrapbooking, decoupage and papier-mâché.
4. In offices, it is especially convenient to use a glue stick for gluing documents.
5. PVA glue is also used in construction: for example, it is added to putty to improve the bonding of building materials.

Previously, glue was made from animal ingredients. It could be the bones and tendons of fish, fish scales. The composition of the glue included natural resins. Artificial components began to be included in the composition only at the beginning of the 20th century. The appearance of stationery glue, as we know it, dates back to the early 40s of the 20th century.

Is glue safe for children? When working with a substance, especially in liquid form, it is easy to get your fingers dirty. The glue is easily washed off the skin without causing it the slightest harm, since its chemical composition is absolutely safe. To prevent the glue from contacting the skin at all, you can use a pencil or spray.

Modern industry has done everything for the convenience of working with materials for the office, school and creativity. Choose a convenient form of stationery glue and do not worry about the quality result of working with paper.

I dedicate this review to stationery glue, namely a glue stick. For use in offices, it is purchased more often than other types because it is convenient to apply, does not get dirty, and does its job well.

I want to test several hard adhesives from selected brands: ADEL, GLOBUS, DOLCE COSTO, Kores, Scotch. Do they all bond paper equally well? And do they all meet the stated quality standards of the glue stick? I'll check it out and show you everything...

Photo 1. List of participants in the competition.

Stability test.

The glue stick, like lipstick, should not fall out of the tube, even when it is completely twisted. I made this comparison for a reason, whoever uses lipstick at least for personal hygiene will agree with me: otherwise, the quality and ease of application suffer greatly, and in the worst case scenario, both sticks will end up on the floor.

So, the adhesive sticks of the Kores, Scotch and DOLCE COSTO trademarks passed the tube stability test successfully: they are firmly fixed at the base and do not fall out when twisted. What can not be said about the glue "ADEL" and "GLOBUS", and the negative result was visible without even pushing the pencil to the end.

Photo 2. ADEL glue and GLOBUS bowed their heads to the winners of this test.

Adhesion test.

And now I will check directly the adhesive properties of the selected samples. According to the standard, the adhesive stick should provide a strong bonding of the paper in 3-4 minutes. When you try to tear off the glued sheet, it should tear, but not peel off.

Photo 3. Carrying out a standard test for stickiness of glue sticks.

The photo shows that when the glued leaves were torn off, the top layer of the notebook sheet was separated, i.e. I couldn't get them off without damage. Accordingly, all selected adhesives successfully passed the test in 3.5 minutes.

Super stickiness test.

I complicate the task of our glues: I will try to tear off the leaves immediately after gluing them to the notebook. I wonder if at least one of them can glue the paper together in an instant?

Result:

Leaflets easily peeled off from the notebook when using glues of the trade marks "Scotch", "DOLCE COSTO" and "ADEL".

Glues "GLOBUS" and "Kores" glued the paper together in the same two seconds - an impressive result!

Photo 4. Best Results at GLOBUS and Kores.

Leaves of trademarks "Scotch", "DOLCE COSTO" and "ADEL" easily peeled off from the notebook.

Capless test.

If the glue stick is left without a cap for 40 hours, then due to the evaporation of the water included in its composition, the top layer loses its properties. They can be restored by closing the cap for at least 5 hours. After checking for the ability to recover under the same conditions, I got this result:

Glue brand "GLOBUS" is very dry, and applied to the paper is very difficult, leaving a faint mark. But in the area of ​​\u200b\u200bapplication of glue on a sheet, it worked well, I put a "test".

The adhesive pencil "DOLCE COSTO" could not recover even minimally, and I could not apply it to paper. The result is negative.

The glue stick "Kores" was applied to the paper without much effort, and did the job. Offset.

The result of this test on the sample of the Scotch trademark is almost identical to the DOLCE COSTO glue: the area of ​​​​its application, with all efforts, corresponds to the size of the “comma” on paper. It was in this area that he worked. The result is negative.

Glue stick "ADEL" has restored its properties: it is well applied to paper and sticks it together. Offset.

Photos 5, 6. After 40 hours without a cap, a clear advantage for KORES.

Photos 7, 8. And here Adel wins.

Smell test.

The composition of office adhesive sticks should not include toxic substances. If the manufacturer violates this rule, then the smell of glue will be sharp and unpleasant. Good glue is practically odorless - or flavored.

Our samples correspond to safety in this organoleptic indicator: "Kores" and "Scotch" have a very weak and familiar smell of stationery glue, and "ADEL", "DOLCE COSTO" and "GLOBUS" do not smell at all.

None of these manufacturers additionally used fragrances as part of the glue.

The results of the testing.

All samples glue paper well in 3 minutes, and do not contain toxic substances.

I declare the glue of the Kores trademark as the absolute leader and winner - only he successfully coped with all the tests, and the quality justifies its cost. Other samples were significantly weaker in one way or another.

The price of Scotch brand glue is unreasonably high - I made such a conclusion due to its weak adhesive properties.

In the table below, you can compare the results of all samples.

Table 1. Summary table of test results for adhesive sticks.

Name	vendor code	Price	Test results					Overall score
			№1	№2	№3	№4	№5
Glue stick «GLOBUS» 15 gr.	1022k	RUB 24.65
Glue stick "DOLCE COSTO" 8 gr.	14000k	RUB 7.31
Adhesive stick «ADEL» 8 gr.	813389m	RUB 34.22
Glue stick "Scotch" 8 gr.	000503	RUB 48.23
Glue stick "Kores" 8 gr.	017150	RUB 54.10

Modern technologies are confidently stepping forward, new compositions and forms of familiar objects and substances appear. One of them is a glue stick.

It is appreciated for features such as:

• convenience and ease of use (it is similar in shape to a pencil, packed in a plastic container with a sealed cap),
• economical consumption (it is easy to distribute the glue on the surface of the paper with a thin layer),
• security,
• does not spill and does not stain hands,
• has no smell,
• approved for use by children
• has a long shelf life (it can be used up to three years).

The composition of the glue stick may be different.

1. Those that belong to the PVA group are composed of water and polyvinyl acetate.
2. Those that belong to the PVP group do not contain water, but glycerin.

PVA is the least toxic, therefore ideal for domestic use. PVP compounds have higher adhesive properties.

Glue pencil for paper - features of use

Reliable manufacturers do not add to the composition PVA stick glue toxic components, but fragrances may be present, but they are safe and approved for use.

Due to economical consumption, glue is used for fastening cardboard, photographic paper, and any paper products. The bonding process takes about 5 minutes.

The glue does not cause deformation of the sheets, which makes it more convenient compared to stationery adhesives.

At the same time, the composition does not set immediately, so within a few seconds you can re-glue the documents as required. It is easy to apply, just swipe the sticker on the paper and attach it to the right place.

For children's institutions and home use, special brands of children's glue sticks are suitable, which, unlike the classic solid ones, are distinguished by a safe composition and interesting colors.

They are based on glucose, so even if they enter the mouth, the composition will not cause poisoning.

RELATED VIDEO

Which glue stick to buy Erich Krause or Kores

Glue sticks for paper Erich Krause are deservedly considered one of the best on the market. They allow you to use them both for creativity and for working with documentation.

Some models of Erich Krause pencils have a color when applied, which disappears after drying. This is fun for children, and for adults it helps to control the distribution of the composition on the surface.

Kores glue sticks are a convenient option for working with textiles, cardboard, paper. It is an environmentally friendly product without solvents. Ideal for creativity, creating photo albums, working with office documents.

Consider the characteristics and properties of the most famous options for stick glue of these brands.

1.Erich krause joy - composition for working with paper, photographs, cardboard. After application, it leaves a color imprint, which allows you to more accurately glue the part. Does not damage paper, does not leave stains and dries very quickly. Convenient packaging ensures comfortable use - the glue is easily twisted out of the plastic tube. The composition is not recommended for use by children under 3 years of age.

The cost is about 40 rubles.

2.Erich krause crystal is a transparent adhesive designed to hold thin cardboard, photographs, paper. Doesn't have bad smell applied evenly. Washes off with water. Ideal for office work, suitable for making crafts in schools.

The cost is about 40 rubles.

3.Kores 20 g - this glue stick is suitable for gluing not only paper and photos, but also textiles. The rod has a soft structure, easily glides over the surface due to the glycerin included in the composition. Glue stick is used sparingly. Colorless, it is easy to wash and rinse with water. It does not have an unpleasant smell, it is easily twisted out of the tube, and it grabs within 30 seconds after use. Safe, approved for use in children's institutions.