The invention discloses an environmentally-friendly prismatic stripping-difficult corrugated
carton which comprises a
carton body consisting of corrugated boards, wherein each corrugated board is formed by adhering case board paper with corrugated paper through an
adhesive; a preparation method of the
adhesive comprises the following steps: uniformly placing
corn starch into a product case, performing aerobic
irradiation by applying
gamma ray radiated from a 60Co
radiation source through a dynamic
irradiation mode, then taking out the irradiated
starch, uniformly stirring and mixing the
starch, adding water, and stirring and dispersing the mixer into
starch paste; slowly adding PVA into water, stirring the PVA at 90 DEG C in a heat preservation manner till the PVA is completely dissolved,cooling to 60 DEG C, and adding an initiator for stirring reaction for 20 to 40 min, so as to obtain a PVA glue liquid; uniformly mixing the
starch paste with the PVA glue liquid, then adding a boraxsolution for stirring reaction for 30 to 40 min, adjusting the pH value of the composite glue liquid to 6 to 7 by using a
sodium hydroxide solution, and continuously enabling the solution to react for1 to 2 h, so as to obtain the environmentally-friendly
adhesive. According to the environmentally-friendly prismatic stripping-difficult corrugated
carton, through the adoption of the gamma-
ray modified starch, the process is easy to operate, and modification is easy to control; the product quality is higher than that of chemically
modified starch, and the cost is lower than that of the chemically
modified starch.