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Dicyclopentadiene type ethylene rhodanate resin and preparation thereof

A dicyclopentadiene type cyanate ester and resin technology, applied in the field of modified dicyclopentadiene type cyanate resin and its preparation, can solve the problem of GMA and bismaleimide copolymer application research. Various reports and other issues, to achieve the effect of improving manufacturability, improving heat resistance and mechanical properties, and broad application prospects

Inactive Publication Date: 2011-06-22
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the application of GMA and bismaleimide copolymers in resin modification has not been reported.

Method used

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  • Dicyclopentadiene type ethylene rhodanate resin and preparation thereof
  • Dicyclopentadiene type ethylene rhodanate resin and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Prepolymerize 5 parts of GMA and 5 parts of 4,4'-diaminodiphenylmethane bismaleimide at 120°C for 3 hours, then raise the temperature to 140°C for 5 hours to obtain GMA / BMI prepolymer. Add the prepolymer and 0.05 parts of dibenzoyl peroxide into 90 parts of DCPDCE, and stir thoroughly at 85° C. to obtain the modified dicyclopentadiene type cyanate resin.

Embodiment 2

[0017] Prepolymerize 5 parts of GMA and 10 parts of 4,4'-diaminodiphenylmethane bismaleimide at 130°C for 2.5 hours, then raise the temperature to 150°C for 4 hours to obtain a GMA / BMI prepolymer. Add the prepolymer and 0.07 parts of dibenzoyl peroxide into 85 parts of DCPDCE, and stir thoroughly at 75°C to obtain a modified dicyclopentadiene type cyanate resin.

Embodiment 3

[0019] Prepolymerize 5 parts of GMA and 15 parts of 4,4'-diaminodiphenylmethane bismaleimide at 140°C for 2 hours, then raise the temperature to 150°C for 5 hours to obtain a GMA / BMI prepolymer . Add the prepolymer and 0.1 part of azobisisobutyronitrile into 80 parts of DCPDCE, and stir thoroughly at 80°C to obtain a modified dicyclopentadiene type cyanate resin.

[0020] The resin is cured and post-treated according to the process of 160°C / 2h+180°C / 1h+200°C / 1h+230°C / 3h. The typical properties of the obtained cured resin are shown in Table 1.

[0021] Prepare pure dicyclopentadiene type cyanate (DCPDCE) cured resin sample as a comparative example: 100 parts of DCPDCE and 0.1 part of azobisisobutyronitrile are fully stirred at 80°C, according to 160°C / 2h+180°C / 1h +200°C / 1h+230°C / 3h process for curing and post-treatment to obtain pure DCPDCE cured resin, and its typical properties are listed in the pure DCPDCE sample in Table 1.

[0022] Table 1: Performance comparison between...

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Abstract

The invention discloses a glyceryl methacrylate grafting bimaleimide modifying dicyclopentandiene bisphenol cyanate ester resin and a method for preparing the same. According to the weight portion, 10 to 25 portions of glyceryl methacrylate / bimaleimide prepolymer are mixed with 0.01 to 0.1 portion of initiator; and after even mixing, the mixture is added to 75 to 90 portions of dicyclopentandienebisphenol cyanate ester and fully mixed at a temperature of 80 DEG C to obtain the modified dicyclopentandiene bisphenol cyanate ester resin. On the basis of keeping the excellent dielectric propertyof the dicyclopentandiene bisphenol cyanate ester resin, the preparation method obviously improves the thermal resisting property and the mechanical property of the resin; moreover, the preparation method also has the advantages of simple process and wide applicability. The dicyclopentandiene bisphenol cyanate ester resin prepared by the method can be used as a high-performance adhesive, an advanced compound material resin matrix and the like.

Description

technical field [0001] The invention relates to a modified dicyclopentadiene type cyanate resin and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Cyanate resin is a kind of high-performance thermosetting resin, which has excellent dielectric properties, outstanding heat resistance, excellent comprehensive mechanical properties and moisture resistance, and shows great application prospects in the fields of electronic information, aerospace and other fields. The unique molecular structure of dicyclopentadiene cyanate resin (DCPDCE) makes it have better dielectric properties and moisture resistance than bisphenol A cyanate, however, its toughness and heat resistance are lower than bisphenol A Type cyanate. Therefore, in order to give full play to the performance advantages of DCPDCE, it must be modified. [0003] At present, the commonly used cyanate resin modification method is to blend or copolymerize with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/06
Inventor 顾嫒娟王金合梁国正何少波张增平袁莉
Owner SUZHOU UNIV
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