▎ 摘　　要

NOVELTY - Modified silane coupling agent i.e (Z)-7,9a-dihydroxy-9-methyl-2-oxo-3-((trimethoxysilyl)methyl)-3,3a,4,5,6a,7,9a,9b-octahydro-2H-spiro(azuleno(4,5-b)furan-6,2'-oxirane)-4-yl 2-methylbut-2-enoate (I) is new. USE - (I) is useful in preparing temperature sensitive film or temperature sensor (claimed). ADVANTAGE - (I) is useful in preparing temperature sensitive film or temperature sensor which has excellent flexibility, high sensitivity, excellent stability, simple structure and low cost, and can realizes large-scale production. DETAILED DESCRIPTION - Modified silane coupling agent i.e (Z)-7,9a-dihydroxy-9-methyl-2-oxo-3-((trimethoxysilyl)methyl)-3,3a,4,5,6a,7,9a,9b-octahydro-2H-spiro(azuleno(4,5-b)furan-6,2'-oxirane)-4-yl 2-methylbut-2-enoate of formula (I) is new. INDEPENDENT CLAIMS are also included for: (1) composite temperature sensitive film, the material of which is modified graphene oxide/epoxy resin, and the modified graphene oxide is the modified silane coupling agent functionalized graphene oxide (I); (2) Use of the composite temperature sensitive film in temperature sensor; (3) temperature sensor flexible substrate made of polyimide, metal interdigitated electrodes, plated on the flexible substrate, and the composite temperature-sensitive film which is coated on the upper surface of metal interdigital electrode; and (4) preparing temperature sensor, comprising dispersing the modified graphene oxide in acetone, adding to the epoxy resin monomer at 50-60degrees Celsius, ultrasonicating for 20-30 minutes, stably stirring at 50-60degrees Celsius for 10-12 hours, volatilizing the acetone, adding curing agent diaminodiphenylmethane (DDM), stirring, placing into vacuum box to remove air bubbles, then coating on flexible substrate plated with metal interdigital electrodes, and curing to obtain temperature sensor.