The aggregation of stryrene monomer,acrylonitrile monomer and butadiene rubber can produce a polymer (ABS) constituted by acrylonitrile ( A ), butadiene rubber ( B ) and styrene ( S ) in various proportions.
The characteristic thereof, due to the ingenious combination by the three components, shows such features as high impact resistance, large tensile strength and high rigidity, which will not alter even under low temperature. Above all, the polymer possesses strong heat resistance as well as chemical and oil resistance, which endows it with such outstanding qualities devoid of in PS and HIPS, AS resin is a butadiene-free in ABS resin. It retains the transparency of stryrene resin and is greatly improved in such properties as heat resistance, chemical resistance, oil resistance as well as mechanical intensity etc.
ABS resin boasts such qualities as high impact strength and mechanical intensity, sound chemical resistance and heat resistance, stable dimension and easy processing etc and is a relatively cheaper industrial material. It is mainly applied to the manufacturing of shells for radios and televisions, air conditioning and warming machines, juice machines, hair driers and shavers, basal body of electric fans, vehicle meters, front protective grillages as well as air conditioning machines in the carriage etc.
AS resin can be used in such fields which require high mechanical intensity, chemical resistance and transparency such as battery compartments, meter boxes, blades of electric fans and beef oil case etc.
ABS resin is a copolymer of acrylonitrile-butadiene-styrene, and its English name is Acrylonitrile-butadine-styrene (abbreviated as ABS). It is a bulk general-purpose resin. It is a project that has been modified (additives or alloys, etc.) to improve performance. Plastics and ABS alloys are the main modified plastics with large output, various types and wide applications.
ABS is a light yellow granular or bead-like opaque resin, non-toxic, odorless, low water absorption, and has good comprehensive physical and mechanical properties, such as excellent electrical properties, abrasion resistance, dimensional stability, chemical resistance and surface gloss, etc. And easy to process and shape. The disadvantages are weather resistance, poor heat resistance, and flammability.
ABS/PC alloy is to improve the flame retardancy of ABS. It has good mechanical strength, toughness and flame retardancy. It is used in building materials, automotive and electronic industries, such as televisions, office automation equipment housings and telephones. PC in the ABS/PC alloy contributes to heat resistance, toughness, impact strength, strength and flame retardancy. The advantages of ABS are good processability, apparent quality and low density, and the application of automotive parts is the focus.
ABS/PA alloy is a material with high impact resistance, chemical resistance, good fluidity and heat resistance. It is used in automotive interior decorations, power tools, sports equipment, lawn mowers and snow blowers and other industrial components, and office equipment housings.
ABS/PBT alloy has good heat resistance, strength, chemical resistance and fluidity, and is suitable for automobile interior parts and motorcycle outer cushion parts.
Permanent antistatic grades with antistatic agents are used for: paper transfer mechanisms for copiers, fax machines, IC film holders, video and advanced audio tapes, etc.; in addition, there are ABS/PSU, ABS/EVA, ABS/PVC/ PET, ABS/EPDM, ABS/CPE, ABS/PU and other alloys.
High-gloss ABS is used for vacuum cleaners, electric fans, air conditioners, telephones and other home appliances. It is achieved by controlling the rubber particle size R+ (smaller) in ABS. Low-gloss ABS is used for dashboards, instrument covers, pillars and other automotive interiors. For parts, use the method of filling and thickening the filler to shrink the surface microscopically and reduce the surface gloss.
Also referred to as SAN, AS resin stands for styrene acrylonitrile resin. It is a type of plastic used for water bottles. And also to make kitchen tools. AS resin is a copolymer plastic. That has both acrylonitrile and styrene.
SAN has a high heat temperature. And this makes is proper for products. So, firms use it as an alternative to polystyrene. The heat resistance gives more quality to the product. It is an industry favorite, used in many items.
These products include; water bottles, food containers, other computer items, battery boxes, daily items, and kitchen tools, and other packaging materials.
Features
AS resin has many properties. As previously mentioned it has both acrylonitrile and styrene. Large acrylonitrile helps to increase mechanical parts. That is, the chemical parts improve their mechanical properties as well as the chemical resistance of the item.
But this may add a yellow tint to the transparency making the normal transparent plastic have shades of yellow. But naturally, the AS resin is transparent and brittle. Its usage is similar to polystyrene. Structurally, there are relations to ABS plastic but the AS resin is resistant to boiling water.
This is because the glass transition temperature is beyond 100°C. This increase is a result of its chemical parts.
The AS resin has rubber chains. And these chains create separate phases. And these chains have about 10-20 micrometers in diameter. These are some of the parts of AS resin.
An extensive family of synthetic resins is produced by the advancement of the chemical industry. Introducing every member of the resin family is a challenging task. So how can we categorize the many different types of resin? Together, let’s challenge it!
Understanding Resin
As a chemical polymer derived from plants, natural resin material is utilized to create a wide range of goods. They have a range of shapes. They are resistant to high temperatures and structurally stable. Natural resin can be a liquid organic substance or it can be solid, medium-solid, or pseudo-solid at ambient temperature. Natural resin often bursts into shell-shaped bits, has a melting or softening temperature range, and prefers to flow under external forces. It is soluble in organic solvents but insoluble in water.
In general, resin is referred to as a prepolymer or polymer that acts as the foundational ingredient in plastics. Synthetic resins are utilized in the production of synthetic fibers, coatings, and adhesives. Polyethylene (PE), Polyvinyl chloride (PVC), Polystyrene (PS), Polypropylene (PP), and ABS resin are the five synthetic resins that are most frequently used.
Classification of resin
Origin
At the very beginning, the term “resin” exclusively refers to natural resin. Natural resins, such as rosin, amber, and wormwood, are amorphous organic compounds obtained from the secretions of plants and animals found in the natural world.
But as the chemical industry has grown, a variety of synthetic polymers have appeared; some of these polymers are called synthetic resins because they resemble natural resins both chemically and physically. Simple organic molecules can be chemically synthesized or natural materials can react chemically to produce synthetic resin. Synthetic resins make up the majority of plastic materials.
Synthesis Reaction
Different types of resin can be classified as additives or condensates based on how they are synthesized. Polyethylene, polystyrene, and polytetrafluoroethylene are examples of adducts, which are polymers formed during addition polymerization and have the same chemical formula as the monomer. Condensate polymers, such as phenolic resins, polyester resins, and polyamide resins, are formed via a condensation polymerization reaction and have a structural unit that differs chemically from the molecular formula of the monomer.
Composition of the main chain
Different types of resin can be classified based on the makeup of the resin molecule’s main chain: carbon chain polymers, heterochain polymers, and elemental organic polymers.
Carbon chain polymers, like polyethylene and polystyrene, have a primary chain made entirely of carbon atoms. Heterochain polymers are those that contain the primary chain of carbon and oxygen, nitrogen, sulfur, and other atoms from two or more polymer constituents, such as polyformaldehyde, polyamide, and polyether. Elemental organic polymers are polymers that do not contain carbon atoms in the main chain. They are mainly composed of silicon, oxygen, aluminum, titanium, boron, sulfur, and phosphorus. Silicone is a common example.
Properties
Thermosetting resins and thermoplastic resins are two different types of resin. Glass fiber reinforced plastic is typically utilized in thermosetting resins, which also include unsaturated polyester, vinyl ester, epoxy, phenolic, bismaleimide (BMI), and polyimide resins. Polypropylene(PP), polycarbonate (PC), nylon (NYLON), polyether ether ketone (PEEK), and other thermoplastic resins are members of thermoplastic resins.
Applications of different types of resin
Natural resin is the main raw material for the production of plastics. It is also utilized in the production of adhesives, insulating materials, paints (including alkyd, acrylic, and synthetic fatty acid resins), and paintings. Large-pore adsorption resins and ion exchange resins are two examples of synthetic resins that are frequently employed in industrial production for the separation and purification of contaminants in liquids.
The purposes of various resin kinds can also be used to distinguish them. Both light and heavy industries employ a variety of resins, including general-purpose resins, advanced coating resins, artificial marble resins, crystal crafts resins, DMC resins, winding resins, corrosion-resistant resins, flexibility resins, color paste resins, food-grade resins, etc. These resins are also frequently utilized in day-to-day activities, including resin glasses and paints.
Conclusion
There are various ways to classify different types of resin, among which four major ways are introduced above, including the origin of resin, the synthesis reaction of forming resin, the composition of the main chain, and the properties of resin. Resin is applied both in high-tech industries like aerospace equipment and daily stuff like resin glasses and paints.