Name | Acrylonitrile-butadiene-styrene terpolymer,flame retarding |
Synonyms | ABS styrene absresin absresins Abs Resins abscopolymer buta-1,3-diene prop-2-enenitrile acrylonitrile-butadiene-styrenecopolymers Acrylonitrile-butadiene-styreneterpolymer acrylonitrile,polymerwith1,3-butadieneandstyrene Acrylonitrile-butadiene-styrene terpolymer,flame retarding 2-propenenitrile,polymerwith1,3-butadieneandethenylbenzene |
CAS | 9003-56-9 |
InChI | InChI=1/C8H8.C4H6.C3H3N/c1-2-8-6-4-3-5-7-8;1-3-4-2;1-2-3-4/h2-7H,1H2;3-4H,1-2H2;2H,1H2 |
Molecular Formula | C45H51N3X2 |
Molar Mass | 633.91 |
Density | 1.05 g/mL at 25 °C |
Melting Point | 58.54(±0.5)℃ |
Boling Point | 145.2°C at 760 mmHg |
Flash Point | 31.1°C |
Water Solubility | acetone, MEK and DMF: soluble |
Vapor Presure | 6.21mmHg at 25°C |
Appearance | Form powder, color natural |
Use | For the preparation of instruments, electrical, electrical, mechanical and other parts |
Hazard Symbols | Xn - Harmful![]() |
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S36 - Wear suitable protective clothing. |
UN IDs | UN 2215 8 / PGIII |
WGK Germany | 3 |
RTECS | AT6970000 |
Raw Materials | 1,3-BUTADIENE |
Downstream Products | polyolefine conductive plastics |
ABS resin is amorphous, opaque terpolymer, generally light yellow pellets or beads, it has the advantages of three components, is a tough, hard, material with good rigidity. Acrylonitrile gives ABS resin chemical stability, oil resistance, certain rigidity and hardness; Butadiene improves its toughness, impact and cold resistance; Styrene makes it have good dielectric properties and gloss, and show good processing characteristics. The melting temperature of ABS resin is 190~240 deg C, thermal decomposition temperature> 250 deg C. The product has good dimensional stability, molding shrinkage is small. Has excellent comprehensive physical and mechanical properties, non-toxic, odorless, heat resistance, impact resistance, especially good low temperature impact; Electrical properties, wear resistance, chemical stability; Water resistance, inorganic salts, alkali and acids; insoluble in most alcohols and hydrocarbon solvents, and soluble in aldehydes, ketones, esters and some chlorinated hydrocarbons; Poor weather resistance, flammable, low heat distortion temperature.
There are many industrial production methods for BS resin. At present, the most widely used in the world is still the emulsion method, which can be divided into two categories: emulsion grafting and emulsion grafting blending. The bulk suspension method still has some practical value. This is briefly described as follows.
resin production raw materials, the skin and mucous membranes of the human body have different degrees of stimulation, can cause skin allergic reactions and inflammation; At the same time also pay attention to the harm of resin dust on the human body, long-term inhalation of high concentrations of resin dust, can cause lung lesions. Most of the resin has a common dangerous characteristics: open flame, high temperature flammable, and oxidant contact has caused the risk of combustion, therefore, the operation of vacuum forming on the processed plate, the operating personnel should improve the operating environment, the operating area and the non-type temperature to 120~170 ℃ as good as the operating area of the conscious drawing, as far as possible automation, sealing, installation of ventilation facilities. Paper plastic bag bag resin production raw materials, the human body leather, 25kg/bag, stored in a cool, ventilated and dry place
ABS resin is an amorphous polymer with good processability. Not only can be used in injection molding, extrusion, calendering, blow molding, vacuum and foaming and other general molding processing methods, can also be used in cold molding processing. But not applicable to compression and transfer molding
Processing, also should not use hot melt method or casting method. Because of the small hygroscopicity of ABS resin, it can be used for molding processing without drying under normal circumstances, and the surface gloss of the product is better if it is processed after drying. During injection molding, the material temperature is controlled at 200~240 ℃, the injection pressure is 50 ~ lOOMPa, and the mold temperature is 40~80 ℃. The molded article can be annealed at 70 °c for 2-4H in an infrared lamp or a blast oven to remove internal stress. During extrusion molding, the temperature of the front part of the cylinder is 170~180 ℃, the temperature of the middle part is 180~220 ℃, the temperature of the head is 180~220 ℃, the temperature of the die is 180~210 ℃, and the ratio of the length to diameter of the screw is 18~20, the compression ratio was 2.5 to 3.0.
ABS plastic can be welded by flame and ABS electrode, or bonded with 10% ABS methyl ethyl ketone solution, and can also be used for drilling, sawing, cutting, turning, milling and other mechanical secondary processing. The surface of the parts is very easy to be plated and printed.