9006-03-5
Chlorinated rubber
CAS: 9006-03-5
Molecular Formula: [C10H11Cl7]n
9006-03-5 - Names and Identifiers
9006-03-5 - Physico-chemical Properties
| Molecular Formula | [C10H11Cl7]n |
| Density | 1.43-1.50 |
| Flash Point | 135-140°C (dec.) |
| Use | Can be used for Impact Modifiers of polyethylene plastics, permanent plasticizers, cold-resistant additives, polyolefin flame retardants, various rubber modifier |
9006-03-5 - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| natural rubber derivative | chlorinated rubber is a natural rubber derivative, which is a product of chlorination after depolymerization of natural rubber. The masticated natural rubber (or polyisoprene rubber) is dissolved in carbon tetrachloride or dichloroethane solvent, and the rubber generated by passing chlorine gas. Chlorine content in 40% ~ 65%, the higher the chlorine content, the better the chemical stability. Pure product is odorless, tasteless, non-toxic white powder, the relative density of 1.43. Industrial products are slightly yellow, with a relative density of 1.5 to 1.7. 135~140 degrees C softening decomposition. Good resistance to various reagents. When the chlorine content is 40 ~ 45%, it is sticky, soft, but unstable. When the chlorine content is 50 ~ 54%, it is a relatively hard solid and still unstable. When the chlorine content is 54 ~ 65%, the stability is better. Soluble in benzene, mixed xylene, naphtha, carbon disulfide, ethyl acetate, tetralin, insoluble in water, alcohol and petroleum hydrocarbon solvent. chlorinated rubber is acid and alkali resistant, and has excellent insulation and mold resistance. Chlorinated rubbers with different solution viscosities were obtained depending on the degree of depolymerization. Used as a coating, the viscosity of 10 ~ 200mPa-s, the higher the viscosity, weather resistance, light retention, stability, but the coating operation is difficult. Chlorinated rubber can be used in the manufacture of coatings, anti-corrosion materials, etc. FIG. 1 shows the molecular structure of chlorinated rubber. |
| chlorinated rubber coating | chlorinated rubber coating is also called chlorinated rubber paint. The chlorinated rubber is prepared by dissolving it in a solvent and then adding other additives. Among them, chlorinated rubber is the main film-forming substance. Although chlorinated rubber is soluble in aromatic hydrocarbons, chlorinated hydrocarbons, esters and higher Ester solvents, xylene or heavy benzene is mostly used as a solvent when used as a coating material. In order to increase the elasticity and adhesion of the coating film, plasticizers such as pentachlorobiphenyl, chlorinated paraffin, chlorinated naphthalene, dibutyl phthalate, dioctyl phthalate, tricresyl phosphate, triphenyl phosphate and some drying oils can be added. In order to delay the aging of the coating film, some pigments may be added, but particular attention should be paid to the nature of the pigment and its reaction with the coating. In addition, it is often used in combination with some resins to improve the performance of the coating. The unique advantages of the coating are: good chemical resistance, can resist acid and alkali and salt spray resistance, low water vapor permeability, good water resistance, these properties are the best in all coatings; the paint added with pigment can resist ultraviolet rays, weather resistance, cold and heat resistance; Toughness, wear resistance, high flame resistance; Use with other resins, higher adhesion; High insulation and mold resistance; High solid content, coating once is equivalent to other coatings several times; Drying is fast; In addition to the above unique advantages, but also has some common properties of other chlorine-containing coatings. The disadvantage is that it is difficult to resist strong nitric acid, concentrated acetic acid and ammonium hydroxide solution; Can not be dried at 110 ℃ or more, otherwise it will damage the adhesion; There is mutual bleeding phenomenon between the two layers of coating. It is used in the manufacture of ship primer, plate paint, cargo ship paint, acid-resistant paint, alkali-resistant paint, cement surface paint, fire-retardant Ester, battery room paint, roof paint, road marking paint, etc. Japan has adopted chlorinated polypropylene to replace pure chlorinated rubber since 1976, because chlorinated polypropylene is more difficult to decompose, can reduce the volatilization of chlorine, and has good heat resistance and weather resistance. Most of these coatings are now used. |
| Use | for rust prevention of steel products, anti-corrosion widely used as anti-corrosion coatings and various strong adhesives can be used as impact modifiers, permanent plasticizers, cold resistant additives, polyolefin flame retardants, modifier of various compounds, etc. |
Last Update：2024-04-09 19:05:15
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