The high-heat-resistance resin composite containing the cellulose fine fiber chemically modified

The resin composite which can be equal to the shaping|molding and use in a member of vehicle mounting|mounted use， an electronic material use， etc. and which has a high dynamics physical property is provided. It is a resin composite containing 0.5-40 mass % of cellulose fine fibers chemically modified， and resin， Comprising: The resin composite in which the said cellulose fine fiber chemically modified has the thermal decomposition start temperature (T D) of 270 degreeC or more， 10 nm or more of number-average fiber diameters， less than 1 micrometer， and 60% or more of a crystallinity degree is provided. A preferable aspect WHEREIN: The variation coefficient (CV) of DS non-uniform|heterogenous ratio (DSs/DSt) which is a ratio of the modification degree (DSs) of the fiber surface layer with respect to the modification degree (DSt) of the whole fiber of the cellulose fine fiber chemically modified is 50 % or less. [FIG. 1] [MAT_IMAGE 000007] [FIG. 2] [MAT_IMAGE 000008] [FIG. 3] [MAT_IMAGE 000009] [FIG. 4] [MAT_IMAGE 000010]