Chlorinated polyethylene rubber
Chlorinated rubber, an eco-friendly high-polymer material resin newly developed by our company, is produced by world leading aqueous phase suspension method. The finished product has no residual solvent and excellent quality due to the rejection of organic solvents such as carbon tetrachloride in the production process.Send InquiryChat Now
Chlorinated rubber is the latest environmentally friendly polymer material resin successfully developed by our company. It is produced by the world's advanced water phase suspension method. The organic solvent such as carbon tetrachloride is not used in the production process, and there is no solvent residue in the finished product, and the quality is excellent.
The chlorinated rubber can be stably dissolved in an organic solvent such as toluene, xylene, chlorinated hydrocarbon or ketoester to form a colorless or yellow transparent solution. Chlorinated rubber film can prevent the penetration of water vapor and oxygen, has excellent weather resistance, wear resistance, water resistance, mildew resistance and flame retardancy; is widely used in the manufacture of marine paint, container paint, anti-rust paint, fire protection Paint, swimming pool paint, printing inks, adhesives, architectural coatings, and paper and fabric coatings.
Chlorinated rubber is mainly divided into different types according to the relative molecular mass or viscosity. Low viscosity products (5 mPa•S) are mainly used for ink additives; medium viscosity products (10-20 mPa•S) are mainly used for formulating coatings; Viscosity products (20-50 mPa•S) are mainly used in the manufacture of adhesives.
Chlorinated rubber-based coatings are abrasion resistant, quick-drying, and stand out on concrete and asphalt. They have excellent adhesion properties and withstand the use of chemicals and abrasives used in snowy days and on the ground with thin layers of ice. On the other hand, chlorinated rubber does not burn due to the chlorine content, so it is a valuable raw material for the manufacture of fireproof and anticorrosive paints.
Chemical formula of chlorinated rubber: -[C 10 H 11 Cl 7 -]-n
Molecular weight: 1500 ~ 115000
Density (20 ° C), g /: 1.5 ~ 1.7
Water absorption (24h)%: 0.1 to 0.3
Light stability (under UV light): stable
Flammability: non-combustible, non-combustible
Drying time (room temperature) h: 1~2
Sealing (oxidation, moisture): excellent
Wear resistance: excellent
Adhesion level, <:2
Salt tolerance d,>:5
Solubility: Contains organic solvents such as aromatic hydrocarbons, esters, benzenes and chlorinated hydrocarbons, insoluble in water, fatty acids, petroleum ethers, ethanol and mineral oils.
Main Models and Technical Indexes:
(20% xylene solution, 25 ℃)
水份（%）≤ Water content
The average molecular weight of the chlorinated rubber is from 5,000 to 20,000. The tensile strength of the unplasticized chlorinated rubber is large even at a low deformation speed, reaching 39.24 MPa, but the relative elongation is extremely low. The strength of plasticized chlorinated rubber is related to the type of plasticizer and the degree of plasticization. Like other chlorinated polymers, chlorinated polymers have high chemical stability. Since chlorinated rubber is basically not used without the addition of plasticizers, the chemical stability of the film is largely dependent on the type of plasticizer, colorant, filler and stabilizer, as well as the strength properties. And the amount (the film produced by chlorinated rubber alone is firm and brittle, and since the resulting film is very thin, this unplasticized polymer is only used to make printing inks). Chlorinated rubber, like most highly chlorinated polymers, has a tendency to form a gel under less suitable conditions if no plasticizer is added. The gel formation mechanism is complicated and the added compounding agent The type is related. Among them, there is a dehydrochlorination reaction with autocatalytic properties, which leads to cross-linking and gel formation. Most stabilizers act like acid absorbers and prevent autocatalytic reactions from occurring. The chlorinated rubber can be used in combination with a variety of synthetic or natural resins and rubbers, and in combination with the resin, the hardness and wear resistance of the resulting product can be improved in most cases. This is important for both coatings and adhesives. Because it requires high creep resistance.
（1）Chlorinated rubber is less used in extruded or molded products. Its main purpose is to divide the different types according to the relative molecular mass or viscosity. It is suitable for inks, coatings and adhesives. It is generally low viscosity (0.01Pa·s). The products are mainly used for ink additives; the medium viscosity (0.01～0.03Pa·s) products are mainly used for formulating coatings; the high viscosity (0.1t～0.3Pa·s) products are mainly used for manufacturing adhesives, which are applied at home and abroad. In actual terms, it is mainly used for medium viscosity products of paints. The main application areas in coatings are road marking paints, marine paints, container paints, architectural paints, swimming pool paints, and flame retardant paints.
（2）Pavement marking paint, also known as road marking paint, is a special application area of chlorinated rubber. Chlorinated rubber-based coatings are abrasion resistant, quick-drying, and stand out on concrete and asphalt. They have excellent adhesion properties and withstand the effects of chemicals and abrasives used on snowy days and on the ground with thin layers of ice. In the UK, it has been stipulated that chlorinated rubber must be used to mark the airport.
（3）In addition, chlorinated rubber does not burn due to high chlorine content. It is therefore a valuable raw material for the manufacture of fire and corrosion resistant paints. This paint has been widely used in petroleum refineries. In terms of adhesives, chlorinated rubber is not used substantially as a separate film former, but as a modifying additive. Used to improve the performance of adhesives such as neoprene, nitrile rubber and polyurethane. Modification with chlorinated rubber gives these adhesives greater versatility. US chlorinated rubber is mainly used in coatings, of which road marking paints account for 46%, and in other countries, 60% of their chlorinated rubber paints are used for marine paints. China's chlorinated rubber is mainly used in marine paints, road marking paints, container paints, ink additives, outdoor tank coatings, architectural coatings and adhesives.
（4）The chlorinated rubber is obtained by dissolving the masticized natural rubber in carbon tetrachloride or dichloroethane and reacting with dry chlorine under the action of a catalyst.
Chlorinated rubber is not rubbery, but dendritic, with a relative density of 1.5~`1.7. It softens and decomposes at 135~140°C, and is soluble in benzene, toluene, xylene, tetrachlorobenzene, ethyl acetate, etc. Forming a solution that is relatively stable with a suitable viscosity.
（5）Chlorinated rubber has the characteristics of aging resistance, acid resistance, alkali resistance, seawater resistance, non-combustibility, etc. The adhesive prepared by the same can be used for bonding rubber to metal, leather, wood, fabric and the like. Chlorinated rubber can also be used as a modifier, modified neoprene, which can improve bond strength, high temperature creep and other properties. As the cohesive force of the chloroprene adhesive is significantly improved, the bonding performance is enhanced. The adhesion to hard PVC is nearly 10 times higher than that of unmodified chloroprene adhesive.
Packaging, storage and transportation
1. Packing: inner PE packaging bag, outsourcing a layer of plastic textile bag, each bag weighing 10kg and 20kg.
2. The product should be stored in a dry, cool, ventilated and non-corrosive gas warehouse.
3. It is necessary to prevent rain and moisture during transportation. The transportation tools should be dry and clean, and lightly loaded and unloaded during transportation to prevent damage to the packaging bag.