Name | Resins, terpene |
Synonyms | TERPENE RESIN Resins, terpene POLYTERPENE RESIN Polyterpene resins Terpene phenol resins Terpene Resin (High M.Wt) |
CAS | 9003-74-1 |
Density | 0,98 g/cm3 |
Flash Point | 240°C |
terpene resin for low molecular weight thermoplastic resin from viscous liquid to brittle solid, pale yellow, light and heat does not change color, resistant to dilute acid, dilute alkali, insoluble in water, methanol, ethanol, acetone and ethyl acetate, etc. Soluble in vegetable oil, mineral oil, benzene, toluene, oil, chlorinated hydrocarbons, ethers, etc. Terpene monomers are very active, and can be copolymerized with each other or with styrene and other olefins to prepare terpene copolymers. Terpene-phenol resin can be obtained by the reaction of terpene with phenol. Taking B pinene resin as an example, its typical performance is: density 0. 96~0. 98g/cm3, softening point 115~135 degrees C, refractive index 1. 53, ignition point 260 degrees C, dielectric constant 2. 96(5 * l04 Hz).
terpenes are naturally occurring unsaturated hydrocarbons. Many Woody oils, particularly turpentine, are rich in terpene monomers. The terpene resin is usually obtained by polymerization of a terpene monomer, such as a-pinene or B pinene, dipentadiene, terpene Diene, and the like. Industrially, B pinene is often used as a monomer, aliphatic hydrocarbon or aromatic hydrocarbon is used as a solvent, and the reaction is carried out in the presence of aluminum trichloride at 20-50 ° C. For several hours, then water is added to destroy the catalyst, and the water layer is separated. The oil layer was washed with water to near neutral, and the solvent and oligomer were distilled off to obtain a solid resin.
mainly used in hot melt and pressure sensitive adhesives, printing inks, coatings, food packaging and chewing gum industry. Terpene resin emulsions are commonly used as sizing agents for fabrics.
It can be packed in a heavy-packed plastic bag and then wrapped in a woven bag or a multi-layer Kraft paper bag or plastic container lined with plastic film, and stored in a cool, ventilated and dry place, away from fire, avoid puncturing the package with sun, rain and sharp objects. Non-hazardous materials may be transported.
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Overview | terpene resins are some thermoplastic block copolymers with light color, low odor, high hardness, high adhesion, good oxidation resistance and thermal stability, compatibility and solubility, etc., especially EVA system SIS system, SBS system and other hot Sol has excellent compatibility and weather resistance and viscosity increasing effect. |
Application | used for adhesives, rubber, paint, ink, Hot Melt Adhesive |
production method | α pinene produced from Pinus massoniana turpentine is polymerized in the presence of catalyst. Toluene, turpentine and anhydrous aluminum trichloride were added to the polymerization reactor and reacted at 40-50 °c for 7H to obtain a red mixed liquid. Then sent to the washing and separation tank with water 1: 1, heated directly to 70~80 ℃, washed with water for 1H, and left to stand for separation, the resulting upper brown-red liquid was a mixture of a terpene resin, toluene and the like, and the lower layer was an aqueous solution containing aluminum trichloride. The washed polymerization mixture was sent to a distillation kettle and subjected to distillation (degree of vacuum: 0.0987 to 0.076 MPa). After condensation and filtration, a light yellow solid terpene resin is obtained. |