Materials and Applications of ABS Alloy Pipes

ABS alloy pipe is a plastic alloy with higher strength, excellent performance, better toughness, and better weather resistance obtained by blending and modifying ABS resin with other plastics and additives. On the premise of further improving the strength of the original ABS material, it overcomes the instability of butadiene and greatly improves its weather resistance, thus meeting the requirements for long-term use rights of plastic pipes. It creatively achieves full plastic tapping of plastic pipes, Thread connection. However, pure ABS pipes can only be connected with adhesive due to factors such as toughness and strength. For example, pure ABS machining can only be connected with adhesive due to factors such as toughness and strength. For example, in the accelerated aging experiment of 500 hours of artificial climate, the tensile strength, impact strength, and bending strength of pure ABS pipes are maintained at around 80%. However, ABS alloy pipes have a performance retention rate of over 82% at 1000 hours, and their impact strength is above 90%, ABS alloy pipes have higher impact strength and surface strength than pure ABS pipes, making them less prone to damage. If natural plant carbon is added to the material, it can effectively decompose ultraviolet rays, maintain the purity of the water inside the pipes, and prevent the aging of the pipes. However, pure ABS pipes cannot achieve this. Due to their high photo oxygen reaction, they are not suitable for outdoor installation The quality of ABS alloy pipes is only 1/8 of that of iron pipes and 5/6 of that of U-PVC pipes. Installation and construction are convenient. The joints use cold melt connection, threaded connection (the first in China), and flange connection
ABS alloy pipes and specialized cold melt adhesives are one of them. ABS alloy pipes are widely used in building water supply and central air conditioning, especially in building water supply risers and central air conditioning pipes. PC/ABS alloy can also be used to make automotive exterior components, such as car wheel covers, reflector shells, taillight covers, etc. PC/ABS has good formability and can be used to process large automotive components, such as fenders.
Very high cost-effectiveness
1、 Introduction to ABS alloy pipes
ABS resin is a general-purpose thermoplastic engineering plastic developed in the 1940s, which is a ternary copolymer of (A) butadiene (B) ethylene (3). Having both the rigidity and chemical resistance, heat resistance, luster and processing flowability of polyethylene, as well as the impact resistance and low-temperature characteristics of polybutadiene, it has good comprehensive performance and is widely used in household appliances, electronic building materials, automotive industry, industrial structural materials and other fields. However, due to the shortcomings of 3d  printing ABS  m30 resin such as poor weather resistance and flame retardancy, It also limits the application of ABS resin in building materials. Based on this, we have conducted comprehensive research on the flame retardancy, weather resistance, mechanical properties, molding and processing properties of the ABS resin formula system, and developed a series of ABS alloy pipes and pipe fittings for water supply systems.
Development trend and brand comparison of ABS alloy pipes
ABS alloy was first developed by Goodrich and Marble Company (now Borg Warnet Company) in the United States, and began development in the late 1960s, reaching commercialization in the 1970s.
After more than 20 years of development and progress, both the United States and Japan have produced a large number of products, which have been widely used in fields such as the automotive industry, electrical industry, office supplies, and daily necessities. In the late 1980s, research on ABS alloy materials began in China, with companies and research institutes such as Hunan Plastic Research Institute, Shanghai Gaoqiao Chemical Plant, Zhejiang Plastic Research Institute, Lanzhou Chemical Industry Company, Jilin Chemical Industry Company, and Chengdu University of Science and Technology developing ABS alloy materials. Mainly used in industries and fields such as electronics, electrical, automotive, and household appliances, ABS alloys have physical and chemical properties similar to pure ABS plastics, improving impact stress cracking, processability, and notch sensitivity, as well as improving the flame retardancy and aging resistance of products.
2、 Introduction to the performance of ABS alloy pipes and fittings
ABS alloy pipes and fittings not only have the performance of pure ABS pipes and fittings, but also improve their impact resistance, stress cracking resistance, greatly improving their flame retardancy and aging resistance. This makes ABS alloy pipes the preferred material for many pipeline applications.
A. Excellent physical and mechanical properties
Vicat softening temperature (load 49N) 92 ℃
Longitudinal retraction rate 2 ‰
The TIR of the drop hammer impact test (0 ℃) is all qualified, and there is no fracture
Hydraulic test (bonding connection) 6.72Mpa lh without rupture or leakage
Connection sealing test (adhesive connection) 6.72Mpa lh without rupture or leakage
Explosion experiment 30 ℃ liquid medium 8.8 Mpa
ABS alloy pipes can achieve full plastic tapping, screw connection, and have good toughness and strength, which means that ABS alloy pipe systems can be used under harsh conditions that other plastics cannot handle.
B. Flame retardant performance
Oxygen index 26.4 (inspection based on GB/T2460-93)
Horizontal combustion II-30mm (GB2408-80)
According to the provisions of GB8624-1997, the combustion performance of the sample is determined to be Class B2.
C. Weather resistance
The tensile strength, impact strength and bending strength of the product are basically unchanged after 1000 hours of accelerated aging test in artificial climate, indicating that the product has good anti-aging performance.
D. Non toxic and stain resistant
Due to the absence of any harmful metal stabilizers in the ABS alloy formula, after soaking experiments, the main indicators of the tested items in the soaking water meet the control water quality standards, making it particularly suitable for transporting high-purity water, and for use in pharmaceutical production, food production, and beverage production.
E. Corrosion resistance and wear resistance
ABS alloy is not affected by internal and external corrosion, and can withstand the wear and corrosion of a wide range of acids, alkalis, and salts. It is also resistant to corrosive slurries, which can quickly damage steel and other traditional pipeline materials.
F. Temperature range
One of the most important advantages of ABS alloy over other plastics is that it can be used in the temperature range of -40 ℃ ≈+60 ℃, which makes high impact abs parts  adaptable and greatly surpasses the performance requirements of commonly used PVC and PE pipes (the low-temperature embrittlement index of commonly used PVC and PE pipes is -5 ℃).
G. Thermal expansibility
The thermal expansion of ABS alloy pipes is 8 × 10MMK is basically the same as UPVC pipe, but much smaller than PE pipe (13 × 16MMK), ABS alloy pipe is a rigid pipe that can greatly control the repeated changes in pressure inside and outside the pipe, causing stress changes in the connecting parts of pipes and fittings. Improve the safety, reliability, and durability of pipelines.
H. Lightweight, good insulation
The same volume and weight are only 1/8 of iron pipes and 5/6 of PVC pipes, with a thermal conductivity coefficient of 5 × 10-4 calories per centimeter per second (Celsius), 1/200 of that of metal pipes, reducing energy loss by 200 times that of iron pipes, improving efficiency and saving insulation costs.
I. Size and pressure range, connection method
The standard size specifications for ABS alloy pipeline systems range from 15mm inner diameter to 600mm inner diameter. The rated pressure is 0.6Mpa to 1.6Mpa. There are two types of connection methods: cold melt connection and flange connection.
3、 ABS alloy pipes mainly comply with technical standards
This standard includes all standards and product classifications for ABS alloy pipes, including raw material entry, testing methods, inspection rules, marking, transportation, storage, etc. (please provide additional data for the original 1.25MPa pipe material).
1. Raw material inspection and anti-aging test report:
(Must be a national authoritative department: National Chemical Building Materials Testing Center) Mainly inspects whether ABS is modified → forms ABS alloy pipes.
In addition, 500 hours of anti-aging test is carried out to check the weather resistance of materials (anti-aging durability of materials), which is an important difference between ABS alloy pipes and pure ABS pipes.
2. Enterprise standard for cold solvent connection of ABS alloy pipes:
Ensure the highest standard of pipe connection, and there must be a cold solvent inspection report.
3. Add an inspection report for 1.25MPaABS alloy pipes (required for each specification from ¥ 50 to ¥ 125).
Inspect whether ABS alloy pipes are produced according to enterprise standards
Inspection content: (1) Appearance (2) Density (3) Vicat softening temperature (4) Drop hammer impact test (5) Hydraulic test (6) Flat test.
4. Measurement report for ABS alloy pipes (must be from the National Chemical Building Materials Testing Center).
Inspection content: (1) Density (2), Vicat softening temperature (3), longitudinal dimensional shrinkage (4), linear expansion coefficient (5), drop hammer impact test (6), hydraulic test
5. ABS alloy pipe flange connection inspection report
Main technical requirements for inspecting flange components:
(1) Appearance (2), Density (3), Vicat softening temperature (4), Hydraulic test (5), Oven test (6), Drop test.
7. Inspection report of ABS alloy pipe fittings:
Inspect whether 90 ° elbows, straight tees, 45 ° elbows, external joints, reducing joints, plugs, reducing tees, and other accessories meet the requirements of the enterprise standard. The inspection content is:
(1) Appearance ⑵, density (3), Vicat softening temperature (4), hydraulic test (5), oven test (6), and drop test.

4、 The difference between ABS alloy pipes and pure ABS pipes
Compared with some general plastic pipes such as U-PVC, PP, PE, PS, PP-R, ABS alloy pipes have better heat resistance, stress cracking resistance, non-toxic properties, and overcome the shortcomings of pure ABS pipes in terms of flame retardancy and poor weather resistance.
ABS resin is a high-quality engineering plastic masterbatch developed in the 1940s. Due to the high cost and price, the scope of use is limited, and the vast majority is only used for household appliances, such as high priced products such as televisions and water dispenser casings. ABS resin material is characterized by homopolymer resins of nitrile, butadiene, and ethylene, with high impact strength, surface hardness, excellent processing performance, and coloring performance. Capable of turning and mechanically reaming threads. Due to its high price, ABS pipes were only applied in European and American countries in the 1980s, and their mechanical strength and hygiene indicators were superior to U-PVC, PP, PE, PS, PP-R and other pipes. Due to its high impact strength and heat resistance, its material properties remain unchanged over a large range, so it has been recognized by society once it is launched.
However, due to the fact that pure ABS pipes are made of ABS resin and contain easily decomposable butadiene double bond molecules in their molecular structure, they have the following shortcomings.
1、 Due to the easy opening of double bond molecules, the decomposition and cracking of polymer bonds occur, especially under ultraviolet radiation, which accelerates the fracture of double bonds and causes discoloration and embrittlement of ABS resin. So ABS pipe is a plastic pipe that is prone to oxidation and has average weather resistance. As a building material product, poor weather resistance means a shortened service life, which is the fatal weakness of pure ABS pipes.
2、 Pure ABS pipes have high thermal shrinkage and are prone to bending and deformation, which affects their service life.
ABS alloy pipes have addressed the shortcomings of the above pure ABS pipes and focused on solving the above two defects, achieving breakthrough progress in aging resistance, UV resistance, and large thermal deformation.
ABS alloy pipe is a plastic alloy with higher strength, excellent performance, better toughness, and better weather resistance obtained by blending and modifying with ABS resin as the main body and adding other plastics and additives. On the premise of further improving the strength of the original ABS material, it overcomes the instability of butadiene and greatly improves its weather resistance, thus meeting the requirements for long-term use rights of plastic pipes. Creatively achieved full plastic tapping and threaded connection of plastic pipes. However, pure ABS pipes can only be connected by adhesive due to factors such as toughness and strength. Pure ABS pipes can only be connected by adhesive due to factors such as toughness and strength. In the accelerated aging experiment of pure ABS pipeline under 500 hours of artificial climate, its tensile strength, impact strength, and bending strength performance were maintained at around 80%. ABS alloy pipes have a performance retention rate of over 82% at 1000 hours, and their impact strength is over 90%. ABS alloy pipes have higher impact strength and surface strength than pure ABS pipes, making them less prone to damage. Adding natural plant carbon to the material can effectively decompose ultraviolet rays, maintain the purity of the water inside the pipe, and prevent the aging of the pipe. However, pure ABS pipes cannot achieve this. The photo oxygen reaction is large and should not be used for outdoor installation.
The quality of ABS alloy pipes is only 1/8 of that of iron pipes and 5/6 of that of U-PVC pipes. Convenient installation and construction. The joint uses cold melt connection, threaded connection (pioneered in China), and flange connection. The joint is firm and never comes off. The threaded connection is consistent with the traditional galvanized steel pipe connection method and is compatible, making it a new generation of green and environmentally friendly products.
The difference between ABS alloy pipes and ABS pipes
ABS alloy pipes and pure ABS pipes are generally not visually distinguishable, but there are fundamental differences in appearance, color, production standards, inspection methods, etc. between ABS alloy pipes and pure ABS pipes.
There are many manufacturers of pure ABS pipes, usually in beige yellow (ABS resin natural color), and some have other colors. After being placed for a period of time, there is a significant color difference between the yin and yang surfaces (due to the photooxygen reaction). ABS alloy pipes are all gray in color, with a uniform appearance and almost no difference between the positive and negative sides. ABS alloy pipes have significantly improved surface strength and toughness compared to ABS pipes. ABS alloy pipes have relevant industry production standards and multiple requirements such as product classification, specifications and dimensions, technical requirements for products, scope of use, experiments, and inspection methods (in short, detailed enterprise technical standards should be provided for testing and inspection reports)
5、 User ordering instructions
To ensure the accuracy of selecting ABS alloy pipes for green pipeline networks, we suggest that ordering units pay attention to the following items when purchasing and ordering:
1、 Distinguish the difference between ABS alloy pipes and pure ABS pipes.
1. ABS alloy pipe is a plastic alloy with higher strength, excellent performance, good toughness, and better weather resistance obtained by blending and modifying ABS resin with other plastics and additives.
2. Due to the characteristics of resin discoloration, embrittlement, high shrinkage, and poor weather resistance, pure ABS pipes have a short service life and are difficult to ensure the quality of the pipeline network.
3. Finished ABS alloy pipes and fittings, with uniform and hard appearance, and marked with the words “ABS alloy pipe” on the surface of the pipes and fittings.
2、 The standards and inspection reports are complete.
1. Various manufacturers have established enterprise standards for this product in accordance with national regulations and industry standards when producing ABS alloy pipes. The standard specifies the scope of use, execution regulations, product classification and specifications, technical requirements for products, experimental and inspection methods, product requirements, packaging, transportation, storage, and other terms for ABS alloy pipes.
2. The inspection report provides detailed inspection results on the characteristics of ABS alloy pipes.