Sport field surface layer material and preparation method thereof

The invention relates to a sport field surface layer material and a preparation method thereof. The sport field surface layer material is prepared from the following raw materials in parts by weight:50-70 parts of cis-polybutadiene, 10-30 parts of butadiene styrene rubber, 10-30 parts of silicone rubber, 80-120 parts of polyurethane rubber powder, 20-30 parts of lithopone, 20-40 parts of mineraloil, 5-15 parts of white carbon black, 1-3 parts of a foaming agent, 1-2 parts of zinc oxide, 2-8 parts of an accelerant and 5-20 parts of a functional auxiliary agent. The sport field surface layer material provided by the invention still keeps good elasticity and physical properties under the condition of extremely-low temperature. 本发明涉及运动场地面层材料及其制备方法。该运动场地面层材料由包括以下重量份数的原料制备而成：顺丁橡胶50-70份、丁苯橡胶10-30份、硅橡胶10-30份、聚氨酯胶粉80-120份、立德粉20-30份、矿物油20-40份、白炭黑5-15份、发泡剂1-3份、氧化锌1-2份、促进剂2-8份、功能助剂5-20份。本发明的运动场地面层材料在极低温的条件下仍保持良好的弹性和物理性能。