toughened epoxy resin composition
A technology of toughening epoxy resin and epoxy resin, applied in the field of toughening and toughening epoxy resin and cured products, it can solve the problems of low viscosity, increased use ratio, sacrifice of strength and toughness, etc., to achieve low viscosity and excellent heat resistance. and the effect of toughness
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[0143] Hereinafter, the present invention will be described in more detail with examples and comparative examples, but the present invention is not limited to these, and can be implemented with appropriate changes within the scope of the above-mentioned and later-described gist, and they are all included in the present invention. within the technical range. It should be noted that "parts" and "%" in the following examples and comparative examples mean parts by weight or % by weight.
[0144] In addition, the measurement and test in the following synthesis example, the Example, and the comparative example were performed as follows.
[0145] [1] Determination of arithmetic number average particle size of core-shell polymer
[0146] The arithmetic number average particle diameter (Mn) of the core-shell polymer dispersed in the aqueous latex was measured using MICROTRAC UPA150 (manufactured by Nikkiso Co., Ltd.). A sample diluted with deionized water was used as a measurement sa...
Synthetic example 1-1
[0202] (Synthesis Example 1-1: Allyl-terminated polypropylene oxide, PTA3000)
[0203] 100 parts (0.033 equivalent) of polyoxypropylene triol (ACTCOL T-3000 manufactured by Mitsui Chemicals, Inc.) having a number average molecular weight of 3,000 was placed in a pressure-resistant reactor, and the reaction was carried out under a nitrogen atmosphere. Next, sodium methoxide (NaOMe) in an equivalent of 3.3 times the hydroxyl group of polyoxypropylene triol was added as a methanol solution. The mixture was devolatilized under reduced pressure while stirring, and methanol was distilled off. After returning to nitrogen atmosphere, 10.2 parts (0.133 equivalent) of allyl chlorides were dripped and stirred for 4 hours to complete allylation.
[0204] After mixing and stirring 300 parts of n-hexane and 300 parts of water to 100 parts of obtained unpurified polypropylene oxide having allyl groups at both terminals, water was removed by centrifugation.
[0205] Furthermore, after mixin...
Synthetic example 1-2
[0206] (Synthesis example 1-2: Allyl-terminated polypropylene oxide, PTA4000)
[0207] In Synthesis Example 1-1, 100 parts (0.025 equivalent) of polyoxypropylene triol with a number average molecular weight of 4000 (ACTCOL T-4000 manufactured by Mitsui Chemicals Co., Ltd.) was used instead of polyoxypropylene triol with a number average molecular weight of 3000, and 6.1 parts of allyl chloride (0.08 equivalent), except that, proceed in the same manner as in Synthesis Example 1-1 to obtain a branched polycyclic polycyclic compound with about 90% of allyl groups at the end of the polymer and a number average molecular weight of about 4000. Propylene oxide: PTA4000.
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