sbr latex – Zarif Mosavar Industrial Group https://www.zarifindustrial.com Active in Textile, Chemical, Petrochemical, Metal, Agriculture and Construction Industries Mon, 09 Oct 2023 11:05:46 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.1 https://www.zarifindustrial.com/wp-content/uploads/2023/08/zarif-logo.svg sbr latex – Zarif Mosavar Industrial Group https://www.zarifindustrial.com 32 32 6 Important factors in Production of Starch | Adhesives and Resins https://www.zarifindustrial.com/starch-in-adhesives-and-resins/ https://www.zarifindustrial.com/starch-in-adhesives-and-resins/#respond Mon, 12 Jul 2021 12:03:48 +0000 https://www.zarifindustrial.com/?p=8970 Starch is kind of Polysaccharide which is comprised of Glucose monomers and is not solvable in water. The Starch would be used as raw material for manufacturing of adhesives and papers, this item would be applied in textile industries too.

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]]> https://www.zarifindustrial.com/starch-in-adhesives-and-resins/feed/ 0 structure of Carboxylated Styrene Butadiene Rubber? https://www.zarifindustrial.com/x-styrene-butadiene-latex/ https://www.zarifindustrial.com/x-styrene-butadiene-latex/#respond Sat, 19 Jun 2021 07:39:40 +0000 https://www.zarifindustrial.com/?p=8684 SBR Latex is the abbreviation of Carboxylated Butadiene Styrene Rubber Latex , In simple language by adding acrylic acids to styrene monomer along with Butadiene gas and some other additives would create the X SBR latex...

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Carboxylated Styrene Butadiene Latex + X SBR Latex

Carboxylated Styrene Butadiene Rubber Latex (XSBR)

XSBR is the abbreviation of Carboxylated Butadiene Styrene Rubber Latex , In simple language by adding acrylic acids to styrene monomer along with Butadiene gas and some other additives would create the XSBR latex , The Styrene has the role of strength increasing and butadiene has dedicated impactability to this copolymer.

Carboxylated Styrene Butadiene Rubber + XSBR

MORE : What is styrene monomer?

MORE : What is butadiene gas?

Styrene Butadiene Latex (SB)

The styrene-butadiene copolymer or SB LATEX is formed by the polymerization reaction of an emulsion of styrene and butadiene monomers. The percentage composition of the two main substances styrene butadiene has a significant effect on the physical properties of the final product.

Styrene Butadiene latex+SB Latex

SB emulsion is used to apply paths, special coatings, adhesives and non-woven fabrics. Adding styrene butadiene (SB latex) makes the paper smoother, firmer, glossier, brighter, more water resistant and more wrinkled.

Used for running tracks, specialty coatings, adhesives, and non-woven fabrics

Styrene Butadiene Rubber (SBR)

Styrene butadiene rubber is actually the same as styrene butadiene latex, but the percentage composition of the two main materials styrene butadiene is different. For example, the higher the percentage of butadiene, will cause more rubbery features, and the higher rate of styrene, would cause drier features too.

Styrene Butadiene Rubber (SBR)

One of the stable emulsions is synthetic Styrene Butadiene Rubber (SBR) with longer life-time and more heat resistance, which is replaced instead of natural rubber after World War II. Today, SBR emulsion is one of the most widely used types of polymers in various industries, especially tire and rubber, tubes, rubber coatings, and hoses.

The difference between SBR and XSBR

With simple explanation, Carboxylating of SBR Latex by acrylic acids produces XSBR or X-SBR. Latex XSBR has improved properties compared to SBR base types and is marketed as white water based emulsion. Literally, they are not much different, but with the variety and recipe of Carboxylated Styrene Butadiene preparation with different additives, each output product has its own characteristics and is used in different industries for different applications, which we will talk about in detail in the following articles.

MORE : XSBR latex product of Zarif-Mosavar Industrial Group

Latex XSBR production process (Carboxylated Styrene Butadiene)

Latex X-SBR is a product of the polymerization process of styrene and butadiene monomers and other additives in which 4 important factors are involved, which are included of:

  1. Raw materials or feed (monomers) including monomers of styrene, butadiene gas and type and concentration of initiator (potassium persulfate) and emulsifier (sodium lauryl sulfate) and other materials affect the physical characteristics of the final product and the speed of the production process.
  2. Recipe and preparation order (Recipe) the ratio of the amount of raw materials that has a significant impact on the physical characteristics of the product.
  3. Reactor space: A space for injecting materials and the amount of cutting materials by the mixer, which has a high effect on the reaction speed of the mixer, will also provide tangible effects on the final properties of the generated latex.
  4. Controlling the temperature of the reaction medium (Temperature): Temperature changes have many effects on the process. Changes in the reaction temperature, ie the polymerization temperature (more effective than other variables) cause changes in the process speed so that in some cases The reaction will vary by more than 50%.

In the preparation of latex polymers by emulsion method, in addition to the above, other factors such as the strategy of injecting materials into the reactor, which can be batch, semi-batch, continuous, which has a noticeable effect on the physical characteristics of the product and film formation.

If we want to explain more about batch, semi-batch, we can say that all kinds of raw materials such as emulsifiers used in polymerization can be injected at the beginning of polymerization or after polymerization, the product is taken out of the reactor, which is called batch or can be Then the reaction is gradually added and at the end the product is taken out of the reactor, which is called semi-batch, or the material can be injected continuously and the product is removed on the other side, which is called continuous method.

Another factor to consider when making a product is its acidity, as this pH greatly affects the physical properties of latex. In addition to the pH value, viscosity, surface tension, mechanical stability, color, odor and film construction are considered.

Advantages and disadvantages of Carboxylated Styrene Butadiene Latex (X-SBR Latex)

Its production cost is much cheaper than some similar materials used in some industries, high resistance to water, acid and alcohol compared to SBR materials. Low resistance to ignition, gasoline and hydrocarbon solvents. It also has excellent corrosion resistance, good buoyancy, low temperature flexibility, cracking resistance, heat resistance and impact resistance of latex XSBR (Carboxylated Styrene Butadiene) properties.

Applications of Carboxylated Styrene Butadiene Latex (X-SBR) in various industries

  • carpet and rug finishing
  • the construction and concreting industry
  • the pulp (cellulose) industry
  • industrial coatings and gloves
  • padding and strobe industry
  • artificial turf industry
  • the industry of polymer composites and compounds

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]]> https://www.zarifindustrial.com/x-styrene-butadiene-latex/feed/ 0 What is styrene monomer? https://www.zarifindustrial.com/styrene-monomer/ https://www.zarifindustrial.com/styrene-monomer/#respond Mon, 17 May 2021 08:43:29 +0000 https://www.zarifindustrial.com/?p=8405 First we need to know what a monomer is. what a Styrene Monomer ? The word monomer is derived from the Greek entry of mono by the meaning “one” and meros by the meaning of “part”. A monomer is a type of molecule that forms the main unit of polymers.

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What is styrene monomer banner

What is a monomer?

First we need to know what a monomer is. what a Styrene Monomer ? The word monomer is derived from the Greek entry of mono by the meaning “one” and meros by the meaning of “part”. A monomer is a type of molecule that forms the main unit of polymers. Monomers bind to other Types monomers through the process of various reactions, usually through catalysts known as polymerization, to form molecules with repetitive chains;

In which two separate molecules are joined together by pairs of electrons to form covalent bonds. In nature, natural monomers bind to each other to from larger molecules, such as glucose, glycogen, and cellulose.

In the industries along with synthetic process, styrene, isoprene, propylene and vinyl chloride are some examples of monomers used in polymer science and industry. In this article, we will explain styrene monomer.

Styrene monomer

Styrene is an organic compound with the chemical formula C8H8, which is industrially produced from the dehydrogenation of ethylbenzene and has a strong affinity for the polymerization process. Styrene monomer is a colorless liquid with an odor similar to aromatic materials with a melting point of 30 degrees and a boiling point of 146 degrees Celsius and is flammable.

Even its steam, because of the heavy air of the thrust, can travel long distances in the environment, and styrene can explode as it approaches a source of heat and fire. Water spray, CO2 powder or foam can be used to extinguish it, and due to its negative effect on the respiratory system and the human eye, goggles and masks should be used during firefighting operations.

History of styrene monomer

Styrene is naturally found in small amounts in some plants and foods (cinnamon, coffee beans, honeysuckle and peanut trees, and a sweet American tree) and is also found in coal tar, which was discovered in 1839 by a German named Edward Simon, who was able to extract a resin-volatile liquid from the American sweet tree (Liquidambar Styraciflua), called it “styrole” or styrene.

He also found that when styrene was exposed to air, light, or heat, it gradually turned into a hard, rubbery substance that he called Meta styrene, or “styrene oxide.” In later years, the German chemist Auguste Hoffmann and his student John Blyth developed the experimental formula for the styrene monomer C 8 H 8.
Styrene Monomer uses

Styrene monomer polymerization and its applications in industry

The vast majority of ethylbenzene produced in the world is for the production of styrene, and styrene is used in the production of polystyrene monomers. Also some products such as: polystyrene, ABS, styrene-butadiene rubber, latex styrene-butadiene, styrene-isoprene-styrene, styrene-ethylene / butylene-styrene, styrene-divinyl benzene, acrylonitrile styrene resin and non-ferrous polyesters are included of styrene.

These materials are used in rubber, plastics, insulation, fiberglass, pipes, car and boat parts, food containers and carpet slats, refrigeration insulation in refrigerators and freezers, sports equipment, etc.

SBR Latex (XSBR Latex) product of Zarif-mosavar Industrial Group


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]]> https://www.zarifindustrial.com/styrene-monomer/feed/ 0 What is butadiene gas? https://www.zarifindustrial.com/butadiene/ https://www.zarifindustrial.com/butadiene/#respond Sun, 16 May 2021 06:19:29 +0000 https://www.zarifindustrial.com/?p=8394 butadiene styrene latex, SBR Latex, XSBR Latex, butadiene gas butadiene, styrene butadiene copolymer , monomer, polybutadiene, styrene butadiene, butadiene methyl styrene rubber, nitrile rubber

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بوتادین-Butadiene

What is butadiene gas?

butadiene is an organic compound with the molecular formula C4H6 with a melting point of -108.9 ° C and a boiling point of -4 ° C, which is a colorless gas at room temperature or a liquid at refrigerator temperature.

Caventou separated butadienes from pyrolysis of amyl alcohol, and in 1886 Henry Edward Armstrong identified this hydrocarbon as butadiene by the decomposition of petroleum gas. In 1910, Russian chemist Sergei Lebedov polymerized to obtain a substance with rubber-like properties.

Butadiene history

However, the polymer was so soft that it could not be replaced instead of natural rubber in many applications, especially car tires, until the years leading up to World War II, when countries such as Britain cut off rubber exports to Germany  to make natural tires.

They tried to replace it, and finally in 1929, the German Scientist: Walter Booth made a styrene butadiene copolymer that could be used in car tires. In the 1940s, the US government established several factories in California, Toledo, Burger, Texas, and Ohio to produce synthetic rubber.

Production of butadiene from ethylene & ethanol

Production of butadiene from ethylene and ethanol

Until 2017, in some parts of the world, including South America, Eastern Europe, China and India, ethanol was used to produce butadiene, but because production was low compared to ethylene, it stopped and now more than 95% of butadienes is separated by fractions Oil steam crackers are produced during the production of ethylene.

Butadienes is a by-product of the process of producing ethylene and other alkenes, so that aliphatic hydrocarbons, when mixed with steam and heated for a very short time (aliphatic hydrocarbons), release hydrogen from the unburned mixture.

The amount of butadienes produced depends on the hydrocarbons used as feed. Light feeds, such as ethane, produce mostly ethylene when cracked, but heavier feeds produce heavier alkenes, butadienes, and aromatic hydrocarbons. also be produced by the dehydrogenation catalyst of natural butanes.

Butadiene uses

Applications of butadiene

In the industrial trend, this is used for the polymerization reaction, for example with maleic anhydride to obtain tetrahydrophthalic anhydride or with styrene monomer to produce carboxylated butadiene styrene latex.

also this is an important monomer in the production of polymers such as polybutadiene, styrene-butadiene and butadiene-methyl styrene rubber, nitrile rubber, butadiene-methyl vinyl pyridine rubber and so on.

In addition, butadienes is used in industry to produce synthetic latex, adipodinitrile, and sebacic acid, but is most commonly used in the rubber industry.

SBR Latex – Styrene Butadiene Rubber

The effect of butadienes on the human body and the environment

Prolonged exposure is associated with cardiovascular disease, leukemia, and other cancers. Animal studies have shown that women exposed are more sensitive to the carcinogenic effects of men, which may be due to the effects of estrogen receptors. Butadienes often affects the blood, brain, eyes, heart, kidneys, lungs, nose and throat.


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]]> https://www.zarifindustrial.com/butadiene/feed/ 0 4 important polymers in our daily life https://www.zarifindustrial.com/4-important-polymers-in-our-daily-life/ https://www.zarifindustrial.com/4-important-polymers-in-our-daily-life/#respond Mon, 15 Mar 2021 08:26:45 +0000 https://www.zarifindustrial.com/?p=7977 It would be said that chemistry and polymers are related to our daily lives because most of the substances we deal with are chemical and follow the laws of chemistry. For example, when you get sick , ...

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پلیمر در زندگی روزمره و صنعت

Chemistry, Polymers and Basics of Polymer Chemistry:

It would be said that chemistry and polymers are related to our daily lives because most of the substances we deal with are chemical and follow the laws of chemistry. For example, when you get sick, it has definitely happened that you have used chemical drugs, or you have used chemical detergents while washing and cleaning, or some of the clothes you are wearing are made of synthetic fibers that are made of chemicals.

You may not have noticed, but you should know that our bodies are full of chemicals that control metabolic processes. For this reason, it may be a good idea to have a minimum of Chemistry knowledge, and then try to study in the simplest language the basics of polymer chemistry, including polymers and the molecular mass of polymers, methods for measuring and examining the solid physical state of polymers.


پلیمر چیست؟ تاثیر آن در زندگی روزمره

The Definition of Polymers

Polymer is a Greek word and its literal meaning is a combination of poly (very) + mer (piece or pieces), which is why it is often called “Baspar” in Persian dictionaries. In fact, a polymer is a large molecule ,which are made up of a large number of smaller molecules, and these small molecules that make up a large molecule are called monomers.

Polymers may be linear, relatively branched, or have multiple internal connections. If there are internal connections, large and three-dimensional networks will be created. Most industrial polymers are organic in nature and contain carbon covalent compounds.

Other elements in polymers are included of oxygen, hydrogen, chlorine, fluorine, phosphorus, and sulfur, all of which can form covalent bonds with carbon at different polarities. According to the properties of covalent compounds, polymer molecules, in addition to primary covalent forces, are affected by secondary intermolecular forces , such as bipolar force between bonds or diffusion force created by the distribution of electron clouds around each atom or hydrogen bonding by Strong bipolars are placed between hydrogen atoms and so on.

To produce polymeric materials, there are different polymerization reactions with their own reaction rates. The reaction rate is also affected by the reaction space (including factors such as temperature, pressure, solvent, initiator and catalyst). The reaction space also has a significant effect on the molecular weight distribution and physical structure of the final product. Sometimes, the number of carbons in polymer chains indicates the molecular structure and physical behavior of the polymers.


Table 1-1: Relationship between the number of carbons in the chain and the structure of some polymers
The Carbon Quantity in Each ChinPhysical Condition
4-1gas
11-5liquid
16-9Liquid with medium viscosity (petrol)
25-16Liquid with high viscosity (grease oil)
50-25Solid(Paraffin)
30000-3000Solid (polymer)

Four Types of Polymers

  • Biopolymers or Natural Polymers
  • Synthetic Polymers
  • Industrial-Natural Polymers
  • Biological Polymers

Biopolymers (Natural Polymers)

Biopolymers (natural polymers) that have two sources of plant and mineral , the humans have no role in its production. Plant-based polymers ,such as polysaccharides and its subcategories: cellulose, starches and gums used in the paper, wood, eyewear and textile industries. Mineral polymers are included of diamond, graphite, most metal oxides and…etc

Synthetic Polymers

There are polymers that are generally derived from monomers of crude oil and coal tar, and we make very useful polymers by processes that would not be possible to live without today.

Industrial-Natural Polymers

These polymers, obtained from the polymerization of polyisoprene with linear molecules with an average molecular weight of about three hundred to five hundred thousand, are the most widely used natural polymers which are applied in the rubber industry.

This polymer is extracted from tropical trees and contains latex with polymer phase along with a weight concentration of 35% and a small amount of protein, sterol, fat and salt. Coagulation of this latex with ethanoic or methanoic acid produces viscous, cheese-like substances called “raw rubber” or “rubber“.

Biological polymers

Biological polymers such as poly-hydroxy butyrate are obtained from agricultural products.


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