The invention relates to a nylon
composite material with high transparency and low temperature
cracking resistance and a preparation method thereof. The
composite material comprises the following components in parts by weight: 53-99 parts of nylon, 1-47 parts of polar
liquid rubber toughening agent, 0.2-1 part of nucleating agent, 0.2-0.5 part of
lubricant and 0.2-0.5 part of
antioxidant; the preparation method comprises the following steps: uniformly mixing the nylon with the polar
liquid rubber toughening agent in the formula in advance, adding other additives in the premix for co-mixing, adding the mixture into a double-screw extruder, and extruding to prepare the nylon
composite material with high transparency and low temperature
cracking resistance. Compared with the prior art, the product provided by the invention has the advantages of wide
material selection, excellent low temperature
cracking resistance, high rigidity retaining rate, good transparency, excellent appearance and the like, and is particularly suitable for application in some products with higher requirements on the low temperature cracking resistance and appearance transparency of materials, for example, spectacles, buckles, ribbons, etc.