Polydicyclopentadiene resin as well as preparation method and application thereof

Abstract

The invention discloses polydicyclopentadiene resin as well as a preparation method and application thereof, and belongs to the field of high polymer materials. The polydicyclopentadiene resin comprises the following components in percentage by mass: 55%-85% of a dicyclopentadiene monomer, 5%-15% of a flame retardant, 2%-4% of a synergistic flame retardant, 2%-10% of a toughening agent, 2%-5% of a deodorant, 0.5%-2% of an antioxidant, 0.001%-0.004% of a catalyst and 0.01%-0.06% of a cocatalyst. Through compounding of the catalyst and the cocatalyst, the conversion rate of the polymerization reaction is improved, and monomer residues are reduced. Meanwhile, the deodorant is added to adsorb the odor of a small amount of residual monomers, so that the peculiar smell of the material is reduced, and the use scene of the material is expanded. The polydicyclopentadiene resin material with good flame retardant property, low odor and excellent comprehensive mechanical property is obtained by regulating and controlling the ratio of the components.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polydicyclopentadiene resin and a preparation method and application thereof. Background technique [0002] Polydicyclopentadiene (PDCPD) has high mechanical properties, and can maintain high impact strength and modulus in a wide temperature range, but PDCPD is easy to form continuous combustion, resulting in flame propagation, which affects PDCPD in many fields. application, reducing the competitiveness of the product. At present, in the preparation of polydicyclopentadiene in the prior art, the flame retardant effect is often achieved by adding a high amount of inorganic flame retardants, but the high amount of inorganic flame retardants is prone to agglomeration during the polymerization of polydicyclopentadiene , The phenomenon of settlement will greatly affect the mechanical properties of the material, and then affect the use of the material. And due to the s...

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Problems solved by technology

[0002] Polydicyclopentadiene (PDCPD) has high mechanical properties, and can maintain high impact strength and modulus in a wide temperature range, but PDCPD is easy to form continuous combustion, resulting in flame propagation, which affects PDCPD in many fields. The application reduces the competitiveness of the product

At present, the preparation of polydicyclopentadiene in the existing technology often achieves the flame retardant effect by adding a high amount of inorganic flame retardants, but the high amount of inorganic flame retardants is prone to agglomeration during the polymerization process of polydicyclopentadiene , The phenomenon of settlement, resulting in a great impact on the mechanical properties of the material, which in turn affects the use of the material

And due to the short reaction time under the reaction injection molding (RIM) process conditions of PDCPD, it is easy to produce monomer residues, and dicyclopentadiene (DCPD) monomer has a special odor, which will be emitted from the surface of the material, affecting the material in the process. The use of indoor and closed spaces, while the residual monomer is too large, will also reduce the strength of the material itself and affect the scope of use of the material itself

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