How is polyamide different from acrylic?

Reviews

For acrylic carpet, customer reviews are divided into positive and negative. Many consumers are satisfied with the beneficial properties of carpets when considered in terms of price and quality. Others are unhappy with the problems that arise during the caregiving process.

Despite opposing points of view, acrylic carpets occupy a large part of the market for such products and can be found in simple and luxury homes. This largely depends on the personal preferences of the home owners.

An acrylic carpet is an excellent purchase if the buyer needs a beautiful and wear-resistant coating. Such a product can be a budget option, instead of a wool carpet, for a rented apartment or cottage.

What is the difference between natural, artificial and synthetic fabrics?

Many people mistakenly believe that artificial and synthetic fabrics are the same thing. Meanwhile, such matter has different origins and composition. In the first case, we are talking about a material obtained artificially from natural raw materials (proteins, metals, glass, cellulose). In the production of synthetic fibers, compounds are used that were obtained through chemical synthesis and are not found in nature (compounds of carbon, hydrogen, nitrogen).

Acrylic fabric

Natural fabrics are made exclusively from natural raw materials without the use of chemicals. Modern industry has reached such a high level that often artificial and synthetic materials are many times superior to natural ones in terms of performance and aesthetic qualities. Despite this, it is still customary to separate artificial and synthetic fibers from natural fibers when classifying certain products.

Similarities between acrylic and polyester

Both materials are synthetic, so they have a lot in common.

They are absolutely safe. People with a tendency to allergies can safely wear them.
The price is significantly lower than natural ones, which makes it accessible to all buyers.
Available in a huge range of colors. Do not lose their shades when exposed to ultraviolet radiation.
Long service life thanks to wear resistance.
The materials are dense and do not allow air to pass through. The products are hot and stuffy in summer. Keeps warm in winter. When sweating, the fabric will not absorb excess moisture. Sweat stains will not be very noticeable.

Fabrics dry three times faster than natural analogues.
Resistant to mold and moths.
Generate static electricity. The fabric sticks to the body. It is worth using an antistatic agent to avoid the problem.
They are afraid of high temperatures. The fibers will lose their properties when heated. The item will become unwearable. You can iron some materials containing polyester and acrylic, subject to caution and a number of rules.

On a note

If the fabric appears wrinkled, the operating rules have been violated.

You should wash things at a temperature no higher than 30 degrees.

Attention

Clothes washed at temperatures above 30 degrees may develop wrinkles. Irons and steam generators will not correct the situation.

The use of bleaches and chlorine-containing products when washing is prohibited. They can ruin the fabric. It is better to take the item to the dry cleaner or try washing it in soapy water.

Items made from these materials should not be twisted or wrung out too much; simply lay them out on a flat surface or hang them on hangers until completely dry. When spinning in a washing machine, use the minimum speed setting.

We recommend

Proper washing and ironing will preserve items made from these fabrics for many years. Always look at the label for proper care.

From all of the above, we can conclude that there is no huge difference between the materials. They are made from non-natural fibers, but meet the requirements of GOST and customer requests.

Which polymer coating is better?

Most profilers traditionally consider polyester to be the most suitable and most popular coating for metal tiles, corrugated sheets and wall panels. Indeed, polyester, the most economical organic coating, can rightfully be considered the most popular. However, is “economy class” always the best option? Obviously not. More durable and more modern coatings have existed in the world for a long time. Such coatings include matte polyester, HPS200, Armacor, Plastisol, Pural, PVDF.

Russian manufacturers of polymer coatings produce mainly polyester. The remaining types of coating come to Russia mainly from abroad, and perhaps that is why they are considered “expensive” and little known to the consumer. However, the demand for more expensive and more refined materials in construction, albeit slowly, is still growing. Therefore, the use of matte polyester, HPS200, Armacor, Plastisol, Pural, PVDF remains a subject of interest to MAPOS.

This time, specialists from the Interregional Association of Galvanized Steel Consumers conducted a study of how familiar profilers are with this type of polymer coating, such as PVDF.

Metallurgical plants and manufacturers of paints and varnishes recommend using galvanized steel with PVDF coating for the production of wall materials, so during the study, managers of thirty companies producing sandwich panels and cassette profiles were interviewed.

The respondents assessed to a potential customer the possibility of making an order from steel coated with PVDF, and also described the properties of this coating. 30 companies from Moscow, St. Petersburg, Chelyabinsk and Samara took part in the survey. As usual, before publication, the research results were corrected by the heads of sales, marketing and commercial directors of the surveyed companies. Galina Kartashova (Becker Industrial Coatings) and Svetlana Lekhmus (Ruukki) also acted as experts.

As a result of the study, the following results were obtained:

Of all the companies participating in the survey, managers of only three companies themselves offer a choice of several types of metal coating, including PVDF.

Managers of 17 companies are familiar with this coating, but either cannot fulfill an order for metal with PVDF or impose a limit on the minimum order quantity. As a rule, these restrictions are due to the fact that profilers are afraid to store leftover rolls in warehouses, believing that it will be difficult for them to sell these leftovers.

Managers of 10 companies know nothing about new types of coating (including PVDF), and these companies use only polyester-coated metal in the production of panels.

The ratio of the number of companies that know and do not know about PVDF.

A large number of companies that do not offer their customers to produce sandwich panels from steel coated with PVDF is probably due to the fact that the sales staff of these companies are poorly familiar with the properties of new types of coatings. And therefore, they believe that metal coated with PVDF will not be able to interest the customer, especially since when selling the product, the appearance of polyester and PVDF is no different.

Thus, when describing the properties of PVDF coating, company managers cited the following erroneous characteristics:

PVDF is just a special type of powder coating, and its properties are the same as polyester. This statement is not true. PVDF is applied using a roller method (just like polyester), but its properties are different from polyester coating.
Metal with PVDF is resistant to chemical attack, but this coating melts in hot weather. This statement is not true. PVDF retains its strength properties up to plus 120 degrees Celsius.
Cladding with this coating is used only in the construction of special facilities, the cladding of which is subject to increased requirements for resistance to chemical attack. This statement is also only partially true. Of course, due to its inertness to active chemicals, PVDF can be used for cladding, for example, chemical storage, or objects whose cladding needs to be washed frequently. But this coating is also suitable for cladding objects for any purpose. It should be remembered that PVDF was primarily developed as a coating for external wall structures and its main advantages appear there.
Cladding with PVDF is used only when operating a facility in unfavorable climatic conditions. PVDF coating does have higher resistance than polyester, for example, to the effects of sea salt, but it can also be used for cladding objects operating in any climate.
The PVDF coating has a small range of colors. This is a misconception. PVDF coating has a limited but fairly wide range of colors. Limitations are associated with the UV-resistant pigments included in the raw materials, and their quantity is limited. However, even bright colors can be achieved by using additional varnishes.

What is PVDF coating and what are its actual properties?

PVDF is a polymer coating of galvanized metal consisting of at least 70% polyvinylidene fluoride and 30% acrylic. PVDF is applied not by powder coating of metal, but by roller coating - just like Polyester, and before application PVDF is in a liquid consistency. This coating is resistant to environmental influences and sufficiently plastic, which is necessary for further metal profiling. Most polymer coatings are applied by roller method - Polyester, Matte polyester, HPS200, Armacor, PVDF, Plastisol, Pural.

There are at least three varieties of PVDF on the market, differing from each other in the amount of polyvinylidene fluoride and acrylic polymer: 50%/50%, 70%/30% and 80/20%. All these varieties can be called PVDF. But licensed PVDF is produced only under the well-known Kynar500 or Hylar5000 licenses and contains at least 70% polyvinylidene fluoride. The 80%/20% ratio gives some advantage in durability under the influence of atmospheric factors, but at the same time it is somewhat reflected in the cost of the final product. Coatings with a 50%/50% PVC/acrylic ratio are significantly less expensive than coatings with a 70%/30% ratio, but the difference in durability between the two is much more noticeable than between 70%/30% and 80%/20% ratios. . An example of the composition of PVDF can be given in the two most common materials on the Russian market - PVDF Ruukki and PVDF Corus. Finnish material has a ratio of 80%/20%, English - 70%/30%.

The PVDF coating is smooth to the touch and can be matte or glossy. It has a wide range of colors. In addition to standard colors, according to the RAL or RR catalog, this coating, due to the addition of special varnishes and multi-layer application, has colors that quite accurately imitate natural polished metals - bronze, gold and aluminum.

The performance properties of PVDF differ from those of Polyester. PVDF exhibits better color fastness and corrosion resistance than polyester.

Comparative characteristics of PVDF and polyester coatings.

During operation, PVDF does not fade under the influence of sunlight and provides the metal with reliable protection during prolonged contact with water, salts, alkalis or acids. This exceptional resistance to external non-mechanical influences is provided by polyvinylidene fluoride, which is part of the coating. And the anti-corrosion properties of PVDF can be increased by using a thicker layer of primer and applying a protective varnish.

Thus, PVDF has sufficient competitive advantages over polyester and the use of this coating can bring mutual benefits to both the consumer of finished products and the profiler.

Steel with this coating is the optimal technical solution for the production of facades that will be used in the environmental conditions of a modern city. The cladding of a building located in the city is exposed every day to the negative effects of exhaust gases, sunlight or rain and snow, which negatively affects the appearance and integrity of the wall cladding. This impact is enhanced if there are manufacturing plants in the city or the building is located directly in an industrial zone.

In addition, the walls of a building, under the influence of sunlight, may change their color somewhat over time. Moreover, walls facing different directions of the world will fade at different rates. And areas of cladding that are in constant shadow from drainpipes, roof slopes, stairs or trees, forming “color spots”, will spoil the appearance of the building.

PVDF allows you to avoid fading of individual areas and destruction of the cladding coating from adverse environmental influences.

Of course, metal with new coatings is slightly more expensive than metal coated with polyester. So, for example, when ordering a sandwich panel with PVDF coating, the price of one square meter of panel increases by 10-12%, compared to the same order made of polyester. But this increase in price is due to the better performance characteristics of PVDF coating. Using metal with a higher-quality coating is an investment that allows you to avoid subsequent repair costs and premature replacement of wall material. And if the building owner cares about preserving the appearance of the wall panels, then the benefits of using PVDF-coated metal are obvious.

A little about the materials themselves

Features of acrylic:

It is a synthetic material made from natural gas processing.
In appearance, acrylic is slightly similar to wool, it is just as soft and flexible, and retains heat quite well.
The disadvantage of the material is the inability to allow air to pass through.
After washing, the fabric loses its elasticity.
After some time, acrylic stretches.
Acrylic fibers are not resistant to high levels of air humidity.
The material cannot be washed at temperatures above +400C.
Acrylic fabric should not be wrung out.

Features of polyester fibers:

Polyester fibers are the basis for polyester. This fabric practically does not wrinkle, does not lose the richness of its color palette from exposure to sunlight, is highly durable and wear-resistant, and is not afraid of organic solvents. The disadvantages include the ability to become electrified. In addition, polyester products are difficult to dye, so if you decide to dye a T-shirt or trousers, you will have to look hard for a quality dye. It will be easier to simply change the shade of the material than to repaint it a different color.

However, recently they are trying in every possible way to eliminate the shortcomings of synthetic fabrics. Polyester is the most common material not only in the clothing industry, but also in the furniture industry.