polymer

Heavy polyethylene has a high density that is made from petroleum. Polymer raw materials such as heavy polyethylene are among the most widely used plastics in the world, which are used in cases such as plastic bottles, shampoo bottles, milk jugs, piping, cutting boards, etc.

HDPE heavy polyethylene has high tensile strength and is very resistant to impact and melting point. Except for food and detergent, heavy polyethylene can be used for wood-plastic composites, plastic surgery, shoes and 3D printing filament.

In fact, heavy polyethylene can be one of the raw materials of plastic, which has a higher density and weight than other compounds, and that is why it is known by this name. These materials are highly resistant to heat.

To produce heavy polyethylene, methane gas is first converted into ethylene in a process. After this conversion, by applying temperature and pressure, ethylene turns into polyethylene. After that, it is time to convert polyethylene into one of its models. This process is called polymerization.In the following, the types of heavy polyethylene are explained:

Injected heavy polyethylene

It is a versatile thermoplastic polymer that is used in various industries due to its excellent properties and performance. Also, injected heavy polyethylene is produced from ethyl polymerization under high pressure using a catalyst system.

Injected heavy polyethylene is a material with high strength and density, which is placed in the category of recyclable polymers. It can also be used repeatedly in injection processes and has a linear structure with low branches.

"52518"

Heavy duty polyethylene

This material consists of a string of ethylene molecules, which makes it strong and light at the same time. Among the physical properties of air heavy polyethylene, he mentioned temperature resistance, high density strength, and chemical resistance.

Air heavy polyethylene is the best type of plastic that can be used a lot. This material has a higher impact resistance and is placed on the top surface due to its hardness and resistance to corrosion and tarnishing.

"HF4760"

Heavy polyethylene pipe

This material is stronger than other pipe raw materials. Stone polyethylene pipe is resistant to acidic and alkaline environments as well as many chemical solutions. In addition, it weighs less than other types of pipes, including cast iron and steel.

"EX3-100s"

Durani heavy polyethylene

It is also known as polyethylene HDPE 3480. Among the applications of heavy polyethylene, Durani pointed out the production of plastic slides, plastic water tanks, large plastic barriers for traffic control and large plastic tankers.

"MD-3840UA"

Heavy polyethylene film

It is a type of heavy polyethylene with high molecular weight. These materials are used to produce plastic films, strong shopping bags and handbags that can withstand high weight. Also, due to its high resistance, it is also used to make disposable gloves in the medical industry.

"HDPE 7000F"

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Light polyethylene is a soft, flexible and lightweight plastic material that is included in the category of polymer raw materials. One of the reasons for the popularity of light polyethylene is its flexibility at low temperatures and high resistance to corrosion.

Applications of light polyethylene (LDPE)

Also, the use of light polyethylene is not suitable for applications where hardness, high temperature resistance and structural strength are required. Light polyethylene is used in plastic raw materials, and due to its good flexibility and low price, it can be used to make food and garbage bags, juice containers, adhesive coatings, water pipes and hoses.

"LH0075"

Unlike heavy polyethylene, light polyethylene has a branching structure with long and short branches. LDPE light polyethylene is produced at a temperature of 80 to 300 °C and a pressure of 1000 to 3000 bar through a free radical polymerization process. One of the other models of light polyethylene is linear light polyethylene, which we will explain below.

Linear light polyethylene

It is a linear polymer with short branches and is generally produced by copolymerization with short chain alpha olefins such as 1-butene, 1-hexene and 1-octene. Linear light polyethylene has higher tensile strength than light polyethylene. It also has a higher resistance to impact and puncture. Linear light polyethylene is used to make cable caps, small packages, liquid containers, etc.

Linear light polyethylene has a melting point of 105 to 115 degrees Celsius and its density is 0.91 to 0.94. Also, this material has a good resistance to alcohols, dilute acids and bases and has a low price with good processability.

“LL 0209AA”

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Polystyrene is one of the primary polymer materials that is clear, rigid, fragile and strong in its unmodified state. Polystyrene is produced in various forms such as foam, rigid plastic and film, which are used for food packaging, electronic protection, etc.

Polystyrene is also known as phenylene and is a thermoplastic polymer that softens and melts when heated and can be reused. Polystyrene is a widely used electrical insulator that is resistant to chemicals such as acids and bases.

Polystyrene contains styrene monomer. In addition, it may contain additives such as initiators, catalysts, stabilizers, lubricants, pigments, and fillers that increase the physical properties of the final product.

Below are the explanations of the types of polystyrene:

General polystyrene GPPS

One of the most widely used polystyrene models is crystalline polystyrene, which is also known as crystal polystyrene and is used for general purposes. It is used to make disposable containers, electrical parts, sports equipment and toys. Also, the use of crystalline polystyrene has advantages such as high strength, transparency, dimensional stability, high electrical properties, resistance to gamma rays and low price.

"GPPS1540"

HIPS resistant polystyrene

It is an economical and versatile polymer that is resistant to impact and has good dimensional stability. Resistant polystyrene can be colored and is easily molded. The advantages of this type of polystyrene include high flexibility, easy machining, impact resistance, and low price.

HIPS resistant polystyrene is actually a thermoplastic that is obtained from the polymerization of styrene monomers and is a hard and rigid plastic. Resistant polystyrene is used for packaging and making consumer goods.

"HIPS7240"

EPS expanded polystyrene:

Expanded polystyrene is produced from white foams, which is used in the packaging industry, building insulation and other cases. Also, EPS expanded polystyrene granules consist of two parts. A part of styrene that forms the structure of the cell and a part of pentane gas that is a foaming agent. Expanded polystyrene is light weight and has low heat transfer.

Hence it is used for insulation. Expandable polystyrene can be used to prevent energy loss. Also, this polymer has high impact resistance.

"HS121"

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Additives (Masterbatch) is actually a solid product that is usually rubber, plastic or elastomer. Masterbatch is a thick mixture of pigments that is added to polymer raw materials.

Masterbatch is a type of additive that is used to color polymer raw materials or transfer other properties to them. To produce a masterbatch, the pigments or additives are first identified and weighed, and then mixed with carrier resin or polymer raw materials.

For example, masterbatches may have the following additives:
UV stabilizer

Antioxidants

Lubricants and molding agents

Foaming agents

Antistatic agents

Nucleogenic agents

Anti-blocking agents, etc

Masterbatch is a concentrated additive to the granule for modifying thermoplastics, and an additive is composed of one or more materials and a special polymer carrier resin. Today, masterbatches are widely used in the plastic industry and are one of the essential materials in the 21st century.

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We proudly offer reverse engineering laboratory and analysis services for polymeric materials. Our team consists of experienced specialists in the field of identification and analysis of polymer materials, who provide you with the best services by using advanced equipment and modern methods.

Our services include:

1. Analyzing physical and chemical details of polymeric materials: This includes analyzing the mechanical, thermal, electrical, and chemical properties of polymeric materials so that you can know the exact properties of your materials.

2. Microscopic analysis: Using advanced microscopes, we examine the internal and surface structure of polymer materials to identify defects and weak points and provide suitable solutions for improvement.

3. Reverse engineering: If needed, using comprehensive analysis, we will implement the reverse process and help to optimize the formulation and improve the quality of your products.

One of the tests that is used to identify the ingredients of products is the MFR or MFI test. Melt mass flow rate (MFR) or melt mass flow index (MFI) is a property of polymer melt flow that is known as the rheological properties of the material in the melt state. The mass MFR value is the amount of material that passes through a die with specific dimensions and comes out during 10 minutes under a certain pressure and at a certain temperature.

A polymer consists of chains of different lengths, therefore the length of the polymer chain determines the melt flow characteristics. Since it is difficult to accurately control the chain length in the polymerization process, it is the chain length distribution or actually the molecular weight distribution of the polymer that affects the melt flow properties.
The higher the MFR value, that is, during the fixed time (10 minutes), more amount of plastic flows at the test temperature, that is, the resistance to flow of the polymer or plastic is lower and it flows more easily, the flow resistance is We know a concept called viscosity. As a result, the higher the MFR of a polymer, the lower its viscosity.

The importance of the MFR test and the reasons for its use
In the production process of a product, if the MFR value varies uncontrollably and unconsciously in a new batch, it can have destructive effects on the productivity and quality of the product. Therefore, it is very important that the materials entering the production unit are tested with the relevant standards and their accuracy is confirmed.

For example, if the MFR of the material is higher than expected, it can lead to the flash of the injection mold, and as a result, the number of returned products will increase, and it will take days to clean the mold and the injection machine. In the worst case, it may cause serious damage to the nozzle, which will be expensive to replace.
On the other hand, if the MFR value is lower than expected, because the viscosity will be higher and the flowability is lower, it may not fill the mold completely and the number of unhealthy products will increase again.

Our team is looking forward to cooperating with you and is ready to provide professional and customized services in the field of polymer materials. For more information and to arrange a free consultation, please contact us.

One of the most practical models of polystyrene, which is a part of polymer, is crystalline polystyrene, which is also known as crystal polystyrene and is used for general purposes. It is used to make disposable containers, electrical parts, sports equipment and toys.

Using crystalline polystyrene has advantages such as high strength, transparency, dimensional stability, high electrical properties, resistance to gamma rays and low price. Also, its disadvantages include fragility at ambient temperature and poor mechanical properties.

According to the applications of crystalline polystyrene, which is used in the production of disposable containers, etc., it can also be placed in the category of plastic raw materials. In the market, crystalline polystyrene is known as crystal, and it is a glossy, glassy, ​​resistant and hard polymer.

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Polypropylene (PP) is a type of proolefin that is a little harder than polyethylene. Polypropylene is a commodity plastic with low density and resistant to high heat. Among the uses of polypropylene, we can mention the use in packaging, automobiles, consumer goods, medicine, and cast films, and its chemical formula is (C3H6)n.

Polypropylene (PP) is divided into two categories: polypropylene homopolymer and copolymer. In the following, they have been examined:

Polypropylene homopolymer

They are thermoplastic resins that are produced through the polymerization of propylene with Ziegler-Natta catalysts. Homopolymers can be used in various processing technologies such as injection molding, blow molding, film, fiber, sheet extrusion and thermal forming.

"Z  30 s"

Polypropylene copolymer

Copolymers have a second monomer of ethylene, which increases the impact strength compared to polypropylene homopolymer. The key properties of polypropylene copolymer are high impact strength, good chemical resistance, better resistance to cracking at low temperatures and increased flexibility.

"Moplen EPD60R"

Polypropylene (PP) is a lightweight, hard, rigid and crystalline thermoplastic that exists in various forms. Among the advantages of polypropylene, we can mention its melting point, density, chemical resistance and flammability.

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Acrylonitrile butadiene styrene (ABS) is a terpolymer made from the polymerization of styrene and acrylonitrile in the presence of polybutadiene. Its ratio can be 15% to 35% acrylonitrile, 5% to 30% butadiene and 40% to 60% styrene.

ABS is one of the most widely used plastic raw materials due to its reasonable price and balanced mechanical and chemical properties. Other advantages of ABS include dimensional strength, high thermal resistance, and impact resistance.
Acrylonitrile butadiene styrene (ABS) is actually the result of a stretch of polybutadiene cross-linked with shorter poly(styrene-acrylonitrile) chains. The data sheet of acrylonitrile butadiene styrene (ABS) is as follows:

"SD0150"

Acrylonitrile Butadiene Styrene (ABS) is one of the most widely used materials in the manufacture of plastics, which is used in the production of household equipment such as refrigerators, vacuum cleaners, electronic devices such as keyboards, printers, mice, laptop and computer bodies.

Acrylonitrile butadiene styrene has favorable mechanical properties such as impact resistance, toughness and strength. By changing the ratio of ABS gear components, it can be produced with different grades. In general, acrylonitrile butadiene styrene has useful properties in the temperature range of 20 to 80 degrees Celsius.

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Crystalline polystyrene compound is one of the primary polymer materials used in various industries. This material is resistant to heat and has high mechanical properties, which has made it widely used in the production of plastic materials.

Crystalline polystyrene compound is one of the raw materials of plastic, which has a uniform texture. This material is widely used in the production of soup packaging containers, disposable cups, ice cream packaging containers and dairy packaging containers.

It is a compound of polymer raw materials such as crystalline polystyrene to increase the desired properties of the final product. Among the advantages of GPPS compound, we can mention the high transparency, high hardness and easy processing capability of these polymer materials.

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Light polyethylene is a type of polyethylene produced by polymerization of ethylene with small amounts of alpha olefins such as butene and hexane. Light polyethylene compound is used in various industries such as packaging, which includes containers, films and bags.

Light polyethylene compound is used in automobile manufacturing for the production of internal and external parts, construction, pipes and consumer goods. This polymer is produced by methods such as injection molding, compression molding, extrusion, and rotational molding.

Compound of polymer raw materials is a set of polymer raw materials, colored particles and reinforcements that increases the final properties of the polymer and can be used in various industries including construction facilities and automobiles.

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