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Flame-retardant polydicyclopentadiene composition, and thermosetting material and preparation method thereof

A technology of polydicyclopentadiene and dicyclopentadiene, which is applied in the field of flame-retardant polydicyclopentadiene composition and its thermosetting material and preparation, can solve the problems of large addition of flame-retardant effect and affecting the mechanical properties of products, etc. Achieve the effect of good flame retardant effect, small amount of addition, and good comprehensive performance

Active Publication Date: 2011-09-28
LIMING RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The flame retardants used in the above patents can only be moderately dispersed in the DCPD monomer, and if the inorganic flame retardants are used alone, the amount of addition to achieve the desired flame retardant effect will be large, which will affect the mechanical properties of the product

Method used

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  • Flame-retardant polydicyclopentadiene composition, and thermosetting material and preparation method thereof
  • Flame-retardant polydicyclopentadiene composition, and thermosetting material and preparation method thereof
  • Flame-retardant polydicyclopentadiene composition, and thermosetting material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Under nitrogen protection, weigh 100 parts of DCPD in a three-necked flask, and then add 18 parts of BPS with a number average molecular weight of 3279. The material temperature is controlled at 70-90°C. After 4 hours of stirring, the BPS is completely dissolved in the DCPD monomer. After the material liquid is cooled to 25°C, it is divided into two parts, one of which is added with 2 parts of WCl modified by the main catalyst p-tert-butylphenol 6 , Form component A; add 1.2 parts of co-catalyst triethylaluminum to form component B. The two components A and B are quickly and fully mixed evenly under high-speed stirring, and injected into the mold. The mold temperature is maintained at 60 Demoulding at -80℃ for 4min to obtain PDCPD products. Product properties are shown in Table 2.

Embodiment 2

[0035] In addition to adding 6 parts of Sb to component A 2 O 3 Otherwise, the same as in Example 1.

Embodiment 3

[0037] In addition to adding 6 parts of Sb to component A 2 O 3 Except for 10 parts of aluminum hydroxide, the others are the same as in Example 1.

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Abstract

The invention discloses a flame-retardant polydicyclopentadiene composition, and a thermosetting material and a preparation method thereof. The composition comprises a dicyclopentadiene monomer, a catalyst, and moderate-low molecular weight bromide polymer capable of being dissolved in monomer dicyclopentadiene, and also can comprise other cycloolefins capable of being copolymerized with dicyclopentadiene, a synergistic flame retardant, a flame retardant synergist, other aids and the like. A main flame retardant in the composition can be dissolved in the monomer dicyclopentadiene, and is small in dosage and good in flame retardant effect. The composition can be prepared into the thermosetting material according to a reaction injection molding process, and the material has good comprehensive performance.

Description

Technical field [0001] The invention relates to the field of polydicyclopentadiene resins, in particular to a flame-retardant polydicyclopentadiene composition and a thermosetting material and a preparation method thereof. Background technique [0002] Dicyclopentadiene (DCPD) monomer adopts reaction injection molding (RIM) process under a two-component catalytic system to obtain high impact polydicyclopentadiene (PDCPD) through ring opening shift polymerization (ROMP) (US4400340) . DCPD is polymerized and interwoven into a network with excellent rigidity and toughness; it has both high impact resistance and high flexural modulus; at the same time it has good dimensional stability, acid and alkali resistance; excellent coating, electrical insulation and bonding properties; One-step rapid prototyping into large-volume, complex-structured parts, so it is widely used as a substitute for metal materials in civil engineering, communications, machinery, sports equipment, etc. At pres...

Claims

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Application Information

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IPC IPC(8): C08F232/08C08F2/44C08L45/00C08L25/04C08L71/12C08K3/22
Inventor 于文杰李宁朱小树孙嘉鹏董火成
Owner LIMING RES INST OF CHEM IND
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