Adhesion improver for carbon-fiber-reinforced resin composition

A technology of resin composition and imparting agent, applied in the direction of adhesive type, epoxy glue, adhesive, etc., can solve the problems of lack of strength and rigidity, and achieve the effect of improving mechanical properties

Pending Publication Date: 2019-11-08
NIPPON STEEL CHEM &MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sufficient strength and rigidity cannot be obtained because the modified polypropylene mixture is used as the resin component and simply mixed with inorganic fibers and polyfunctional epoxy compounds.

Method used

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  • Adhesion improver for carbon-fiber-reinforced resin composition
  • Adhesion improver for carbon-fiber-reinforced resin composition
  • Adhesion improver for carbon-fiber-reinforced resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0150] 90 parts of d-1 as an acid-modified polyolefin resin, 10 parts of d-1 as After e-1 of the epoxy resin, preheat and melt for 1 minute. Then, 1 part of f-1 was added as a catalyst, and it heated and melt-mixed at 170 degreeC for 6 minutes. After completion of melt-mixing, it was taken out of the system and left to cool to obtain an adhesiveness-imparting agent (C-1). Table 2 shows the results of measuring the presence or absence of IR absorption due to the ester bond and the melt viscosity of the obtained adhesiveness imparting agent.

Embodiment 2～5、13～19

[0151] Embodiment 2~5, 13~19, reference example 1, 2

[0152] Acid-modified polyolefin resins d-1 to 3, epoxy resins e-1 to 5, and catalyst f-1 were mixed in proportions (parts) described in Table 2A and Table 2B, using the same device as in Example 1 , Adhesiveness imparting agents (C-2 to 12, SC-1, 2) were obtained by the same operation. Table 2 shows the results of measuring the presence or absence of IR absorption due to the ester bond and the melt viscosity of the obtained adhesiveness imparting agent. In addition, the molar ratio in a table|surface represents the molar ratio (AE / EE) of the carboxyl group (AE) of an acid-modified polyolefin resin, and the epoxy group (EE) of an epoxy resin.

[0153] [Table 2A]

[0154] Example 1 2 3 4 5 Reference 1 Reference 2 d-1 90 90 d-2 50 50 d-3 50 50 70 e-1 10 50 50 50 30 10 50 f-1 1 1 1 0.1 1 The molar ratio of 3.9 30.0 38.0 38.0 8...

Embodiment 6

[0158] 10 parts of the adhesion-imparting agent (C-1) obtained in Example 1 and 90 parts of B as a polyolefin resin were put into a kneading extrusion molding machine in which the inside of the mixer was preheated to 200°C. After -1, preheating and melting were performed for 1 minute, and heating and melting and mixing were further performed at 200° C. for 3 minutes. After completion of the melt mixing, it was taken out of the system and left to cool to obtain a resin composition 6 composed of an adhesiveness imparting agent and a polyolefin-based resin. The interfacial shear strength of the obtained resin composition 6 was measured, and the results are shown in Table 3.

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Abstract

Provided is an adhesion improver for carbon-fiber-reinforced polyolefin-based resin compositions which improves the mechanical properties including bending strength and bending modulus. The adhesion improver is for use in carbon-fiber-reinforced resin compositions which comprise carbon fibers and a polyolefin-based resin, and is characterized by comprising an acid-modified polyolefin-based resin unit and an epoxy resin unit, the acid-modified polyolefin-based resin unit and the epoxy resin unit having been bonded to each other by an ester structure and the epoxy resin unit containing a secondary hydroxy group.

Description

technical field [0001] The present invention relates to an adhesiveness-imparting agent for carbon fiber-reinforced resin compositions using a polyolefin-based resin as a matrix resin, and in particular to a carbon-fiber-reinforced resin capable of obtaining molded articles with improved mechanical properties such as flexural strength and flexural modulus Adhesive imparting agent of composition. Background technique [0002] In recent years, carbon fiber-reinforced resin compositions have attracted attention as industrially important materials for evaluating mechanical properties such as strength, rigidity, low specific gravity, and wear resistance. In particular, in the fields of automobile parts and electronic material products, research has focused on high-rigidity resin compositions of carbon fibers as substitutes for metal materials and glass fiber-reinforced resin compositions. However, the current situation is that the high rigidity of carbon fibers cannot be fully e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/14C08K3/013C08K3/04C08K7/06C08L23/00C08L63/00
CPCC08G59/4246C08G59/4261C08G59/20C08J5/042C08J2323/12C08J2423/26C08J2463/00C08L23/04C08L2207/068C08L2207/062C08J5/243C08J5/249C09J163/00C08L23/12
Inventor 吉野贵彦吉冈敬裕椋代纯藤城光一
Owner NIPPON STEEL CHEM &MATERIAL CO LTD
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