Bio-based epoxy resin composition and application thereof in preparing epoxy resin film

A technology based on epoxy resin and epoxy resin glue, applied in the direction of epoxy resin glue, silicon organic compound, carboxyl rubber adhesive, etc., can solve the problem of high hydrolyzable chlorine content, low yield, and more waste liquid. problems, to achieve the effects of improving processing fluidity, improving dielectric properties, and reducing system viscosity

Inactive Publication Date: 2019-03-15
江苏和和新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the literature does not provide any performance data applied in the above-mentioned several specific fields. At the same time, the reaction solution obtained in the preparation method needs to be extracted and washed repeatedly, and the waste liquid is generated more, and the yield of the closed-loop product is low. About 70%, the hydrolyzable chlorine content in the product is high, it is difficult to meet the high-quality application requirements

Method used

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  • Bio-based epoxy resin composition and application thereof in preparing epoxy resin film
  • Bio-based epoxy resin composition and application thereof in preparing epoxy resin film
  • Bio-based epoxy resin composition and application thereof in preparing epoxy resin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Benzyltriethylammonium chloride aqueous solution (concentration: 20g / L, 100mL) was mixed with halloysite nanotubes (5g), and the water was removed by evaporation, and the remaining substance was heated in an ultrasonic microwave device at 120°C for 20min. The halloysite nanotube catalyst immobilized with benzyltriethylammonium chloride is obtained.

[0078] Under normal pressure, eugenol and epichlorohydrin (molar ratio 1:1) were added, and the halloysite nanotubes immobilized with benzyltriethylammonium chloride prepared in this example were added in proportion as catalyst (benzyltriethylammonium chloride). The molar ratio of ethylammonium chloride to eugenol=0.05:1), etherification ring-opening reaction was carried out at 100°C, and the reaction time was 2 hours to obtain chlorohydrin ether; when the system was cooled to about 60°C, add Sodium hydroxide (the molar ratio of sodium hydroxide to eugenol = 1.05:1), was added in batches within 3 hours, and the heat preserv...

Embodiment 2

[0084] Take 100phr of bio-based epoxy resin prepared in Example 1, 20phr of dicyandiamide, 0.3phr of 2-methylimidazole, and 25phr of nitrile rubber, and use a ball mill to mix them uniformly and then apply them on the polyester grid cloth carrier by a coating machine , with a thickness of 150 μm, placed in a 150°C oven and heated for 5 minutes to form a partially pre-cured composition adhesive layer, and then rolled it with release paper to form an adhesive film. The performance test results of the epoxy resin film are listed in Table 1 below.

Embodiment 3

[0086] Benzyltriethylammonium chloride aqueous solution (concentration: 1000g / L, 50mL) was mixed with halloysite nanotubes (10g), and the water was removed by evaporation, and the remaining substance was heated in an ultrasonic microwave device at 150°C for 40min. The halloysite nanotube catalyst immobilized with benzyltriethylammonium chloride is obtained.

[0087] Under normal pressure, eugenol and epichlorohydrin (molar ratio 1:1) were added, and the halloysite nanotubes immobilized with benzyltriethylammonium chloride prepared in this example were added in proportion as a catalyst (benzyltriethylammonium chloride). The molar ratio of triethylammonium chloride to eugenol=0.05:1), etherification ring-opening reaction was carried out at 110°C, and the reaction time was 2 hours to obtain chlorohydrin ether; Add sodium hydroxide (the molar ratio of sodium hydroxide to eugenol = 1.05:1), add in batches within 3 hours, and keep warm for 4 hours; put the system to stand, cool and ...

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Abstract

The invention discloses a bio-based epoxy resin composition. The bio-based epoxy resin composition comprises the following raw materials: 100 parts of bio-based epoxy resin and 5 to 50 parts of a curing agent; and the structural general formula of the bio-based epoxy resin is shown in the following formula. In the formula, x is an integer selected from 1 to 5, R1 to R4 are independently selected from a phenyl, a vinyl group, and an alkyl group having 1 to 10 carbon numbers. The bio-based epoxy resin is siloxane chain segment-containing eugenol bio-based epoxy resin, and main reaction functional groups are eugenol epoxy groups, and siloxane chain segments are introduced in a molecular skeleton, thereby being capable of greatly reducing the viscosity of the system and improving the processing fluidity, siloxane in macromolecular volume can further greatly improve dielectric properties and reduce dielectric constants, and has intrinsic flame retardant properties. The epoxy resin composition taking siloxane as a substrate can realize intrinsic flame retardation without adding a flame retardant, and the epoxy resin film prepared by using the composition has outstanding flame retardancy,adhesive properties and bending strength, and further is high in dielectric strength.

Description

technical field [0001] The invention relates to the field of epoxy resins, in particular to a bio-based epoxy resin composition and its application in preparing epoxy resin films. Background technique [0002] Epoxy resins have developed into a large class of thermosetting resins due to their excellent mechanical and electrical properties, and are widely used in adhesives, structural composite materials, electronic semiconductor packaging and other fields. However, its performance is greatly affected by the epoxy resin matrix. [0003] At present, the global annual output of epoxy resin is more than 2 million tons, among which bisphenol A epoxy resin is widely used, such as E44, E51, etc., accounting for more than 85% of the total output. Bisphenol A type epoxy resin is mainly prepared from bisphenol A and epichlorohydrin as raw materials. Although bio-based epichlorohydrin has been industrialized and its output is increasing, more than 67% of bisphenol A is still complete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/30C08L63/00C08L13/00C09J7/10C09J7/30C09J163/00C09J113/00C07F7/08B01J31/26B01J31/02
CPCB01J31/0254B01J31/26B01J2231/4277C08G59/306C08L63/00C08L2201/02C09J7/10C09J7/30C09J163/00C08L13/00
Inventor 李诚叶书怀张涛马丹吉和信钟程苟明明袁凯王亮邵博文胡雪敬
Owner 江苏和和新材料股份有限公司
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