Sizing agent composition, carbon fiber material and composite material
AssigneeFormosa Plastics Corporation
InventorsHsuan-Yin Chen, Long-Tyan Hwang
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Abstract
The present application relates to a sizing agent composition, a carbon fiber material and a composite material. The sizing agent composition comprises specific compositions, thereby producing a sizing agent having emulsion droplets with specific diameter. The sizing agent has excellent emulsion stability, and it can efficiently improve hygroscopicity and dimensional stability of the carbon fiber material. Besides, the sizing agent can improve bonding properties between the carbon fiber material and resin matrix, therefore enhancing properties of the composite material.
Claims14
A sizing agent composition, comprising:
- an epoxy compound;
- a dicyclopentadiene compound, wherein the dicyclopentadiene compound has a structure shown as the following formula (I):
- wherein A independently represents a non-polar cyclic group;
- R independently represents a hydrogen atom or a functional group shown as the following formula (I-1) to formula (I-3);
- and n represents 0 or 1;
- in the formula (I-3), m represents 1 to 5;
- a surfactant;
- and
- water,
- wherein based on an amount of the sizing agent composition as 100 parts by weight, an amount of the epoxy compound is 2 parts by weight to 30 parts by weight, an amount of the dicyclopentadiene compound is 2 parts by weight to 30 parts by weight, an amount of the surfactant is 0.5 parts by weight to 15 parts by weight, and an amount of the water is 25 parts by weight to 95.5 parts by weight.
Dependencies are inferred from the claim text.