CN115627037A - 一种无缝半预制球场材料的制备工艺 - Google Patents

一种无缝半预制球场材料的制备工艺 Download PDF

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CN115627037A
CN115627037A CN202211411177.1A CN202211411177A CN115627037A CN 115627037 A CN115627037 A CN 115627037A CN 202211411177 A CN202211411177 A CN 202211411177A CN 115627037 A CN115627037 A CN 115627037A
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朱炜恒
朱炜博
周露
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Hubei Greensberg Sports Industry Group Co ltd
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Abstract

本发明属于塑胶跑道制备工艺，一种无缝半预制球场材料的制备工艺，其特征在于：其原料按重量份包括：聚氯乙烯树脂100‑120份；聚氨酯树脂50‑60份；弹性增强剂5‑10份；稳定剂2.5‑3份；增塑剂60‑80份；抗冲改性剂4‑6份；抗氧化剂0.2‑0.3份；紫外线吸收剂0.3‑0.5份；润滑剂0.4‑0.6份；耐磨止滑剂7‑10份；耐磨粉体4‑10份；膨胀剂4‑7份；成型剂2‑5份；碳酸钙50份；粉煤灰活化料15‑20份，本发明通过特殊工艺制备了多层塑胶结构跑道，各物质之间有较好的分散性和相容性，提高了相互之间的粘结强度，达到了改善和提高物料的加工性能和产品的力学性能。

Description

一种无缝半预制球场材料的制备工艺
技术领域
本发明属于塑料跑道技术领域，特别涉及一种无缝半预制球场材料的制备工艺。
背景技术
塑胶跑道又称全天候田径运动跑道，它由聚氨酯预聚体、混合聚醚、废轮胎橡胶、EPDM橡胶粒或PU颗粒、颜料、助剂、填料组成。塑胶跑道具有平整度好、抗压强度高、硬度弹性适当、物理性能稳定的特性，有利于运动员速度和技术的发挥，有效地提高运动成绩，降低摔伤率。塑胶跑道是由聚氨酯橡胶等材料组成的，具有一定的弹性和色彩，具有一定的抗紫外线能力和耐老化力是国际上公认的最佳全天候室外运动场地坪材料。
授权公告号为CN105101506B的中国发明专利公开了一种一种硅PU塑胶跑道的制作工艺，本发明以封端异氰酸酯、聚硅氧烷、聚氨酯树脂端羟基聚丁二烯和黑色橡胶颗粒作为主料，使得硅PU塑胶跑道具有良好的耐高低温、耐候、耐氧化和透气性，附着力强，冲击吸附能力强，通过滑石粉和高龄土作为填充剂，能够增加硅PU塑胶跑道的稳定性、张力程度和压力强度，通过铅盐和有机锡作为稳定剂能够提高生产效率和产品质量，但是该塑料跑道为单层结构，其抗压强度、韧性和弹性均无法达到较高的水准，使其运动体验性较差；授权公告号为CN110055857B的中国发明专利公开了一种环保塑胶跑道制备方法，通过聚四氟乙烯、硅胶、废轮胎橡胶、交联剂和偶联剂组合成塑胶跑道基材，通过聚四氟乙烯、EPDM橡胶颗粒、交联剂和偶联剂组合成塑胶跑道表面颗粒，然后塑胶跑道基材和塑胶跑道表面颗粒组合成塑胶跑道面层，并且具有较好的耐高压、耐碱、耐高温、耐低温、耐腐蚀等性能，在高温天气下，通过加入聚四氟乙烯能够防止塑胶跑道变形，避免塑胶面层受压部位产生沉陷，保证了塑胶跑道能够正常使用，提高了塑胶跑道的使用寿命，并且对环境对人体无害，首先该发明中实用废轮胎橡胶会在夏天高温条件下产生刺鼻气味，同时该面层的的并不能够疏水效果以及耐磨的作用。
发明内容
本发明的目的是提供一种无缝半预制球场材料的制备工艺，本发明通过特殊工艺制备了多层塑胶结构跑道，各物质之间有较好的分散性和相容性，提高了相互之间的粘结强度，达到了改善和提高物料的加工性能和产品的力学性能。
本发明的上述技术目的是通过以下技术方案得以实现的：一种无缝半预制球场材料的制备工艺，其原料按重量份包括：聚氯乙烯树脂100-120份；聚氨酯树脂50-60份；弹性增强剂5-10份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份；耐磨粉体4-10份；膨胀剂4-7份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份。
包括以下制备步骤：
S1：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份，耐磨粉体4-10份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成面层；
S2：将聚氯乙烯树脂100-120份；聚氨酯树脂50-60份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；弹性增强剂5-10份；润滑剂0.4-0.6份；膨胀剂3-5份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成弹性层；
S3：通过在线挤出、压延成型PVC塑胶跑道弹性层，在压延过程中将玻璃纤维丝网格和PP编织网格层热熔在PVC塑胶跑道弹性层的上下面层上，然后进行涂敷工艺，将热熔粘合的PVC塑胶跑道的弹性层与面层下表面涂敷结合，同时增加一层弹性层与弹性层下表面含有聚丙烯网格层涂敷结合构成了五层复合型PVC塑胶跑道产品。
本发明的进一步设置为：所述耐磨粉体为树枝状二氧化硅粉体。
本发明的进一步设置为：所述树枝状二氧化硅粉体通过以下步骤制备：
S1：采用160mL正戊醇，将质量体积比为1-1.5g：10-15mL的聚乙烯吡咯烷酮和正戊醇混合搅拌均匀，待完全溶解后，滴加适当的0.18g/L的二水柠檬酸钠水溶液，混合均匀；然后在搅拌中缓慢滴加2-4mL氨水，静置后滴加适当的1-3mL正硅酸乙酯，并在90-95℃的油浴中反应2.5-3h；反应结束后进行抽滤、洗涤、烘干后得到中间体二氧化硅；
S2：将步骤S1中的中间体二氧化硅分散到乙醇和去离子水中，加入0.1-0.3g的盐酸多巴胺，并用适量的三羟甲基氨基甲烷调节pH为8-9，然后滴入1-1.2mL的正硅酸乙酯，并在30-35℃的油浴环境中静置24-36h，反应结束后进行抽滤、洗涤和烘干后得到树枝状二氧化硅粉体。
本发明的进一步设置为：所述弹性增强体通过以下步骤制备形成：(1)在异氟尔酮异氰酸酯中逐渐滴加经除水处理的羟乙氧基丙基封端聚硅氧烷，边搅拌边滴加；使其在80-85℃反应2.5-3h后得到预聚体；(2)将咪唑烷基脲溶于四氢呋喃中，同时滴加一滴催化剂，超声处理后降低在搅拌条件下逐渐滴加到步骤(1)中的预聚体中，滴加完成后在70-75℃下反应2-4h，同时加入改性稀土交联体后超声30min，反应结束后得到弹性增强体。
本发明的进一步设置为：所述羟乙氧基丙基封端聚硅氧烷：咪唑烷基脲：异氟尔酮异氰酸酯的摩尔比为1：2-4：2-3。
本发明的进一步设置为：所述改性稀土交联体通过以下步骤制备：(1)将摩尔质量比为10:1的侧氨基聚硅氧烷和环氧吲哚单体进行混合后加入到四氢呋喃中，搅拌20-30min后逐渐滴加稀土溶液，继续搅拌25min；然后进行在120-130℃下反应24-30h，得到改性稀土交联体。
本发明的进一步设置为：所述侧氨基聚硅氧烷通过以下步骤制备：将八甲基环四硅氧烷和γ-氨丙基三甲氧基硅烷、四甲基氢氧化铵催化剂混合并在氮气保护下升温至100-110℃反应30-50min；然后加入六甲基二硅氧烷持续反应2-3h；反应结束后升温至160-170℃持续反应1-1.5h，反应结束后在70-75℃下抽真空后，得到侧氨基聚硅氧烷。
本发明的进一步设置为：所述八甲基环四硅氧烷、γ-氨丙基三甲氧基硅烷的摩尔比为10：1。
本发明的有益效果是：
1、本发明通过特殊工艺制备了多层塑胶结构跑道，各物质之间有较好的分散性和相容性，提高了相互之间的粘结强度，达到了改善和提高物料的加工性能和产品的力学性能；其中在弹性层的上下面热熔结合了玻璃纤维网格布和抗撕拉网格层面，是弹性层的各项性能指标有了明显的提升，起到了加强和抗冲击作用，同时该材料绿色环保，满足实际应用需求。
2、本发明中的中间体二氧化硅为线性二氧化硅，将适当的多巴胺包覆在线性二氧化硅上，以纳米级别的球形二氧化硅依托在线性的中间体二氧化硅为载体，形成树枝状结构的二氧化硅，每根线性的二氧化硅上都会有球状的二氧化硅聚集体，能够减少线之间的粘结，通过分析发现，树枝状结构粉体没有出现相与相之间的分离，这缘于硅氧基团和聚多巴胺上的活性基团与树脂之间的相互作用，使其具有较好的相容性，而添加了耐磨粉体之后的面层具有了更好的疏水性，这是由于因为二氧化硅粉体容易向涂膜表面聚集，使涂膜的表面能降低，从而提高了膜层的疏水效果，同时线形粉体之间相互搭连而形成网络，会增加树脂的韧性和强度，而树枝状的阻隔分离使粉体与粉体之间形成均匀的网格结构，在增加韧性的同时，减少了粉体的团聚，减少了应力缺陷点。
3、本发明中的弹性增强体是通过将脲基嘧啶引入到了聚硅氧烷的主链中，不同于现有技术中仅将其引入到分子链段的末端，本发明形成了多位嵌入段共聚物，并引入了多重氢键，使硬段之间的作用力变得更强，因此多重氢键作为扩链剂制备的弹性体比单重氢键作为扩链剂制备的弹性体的热失重温度要高，也表明了多重氢键的加入提高了耐热性；由于弹性体中的氢键含量的增加也使得体系中氢键交联密度的增加，分子之间作用力増强。拉伸强度和分子间约束网络随之变大，分子运动受到更大的限制，进一步提高了弹性层的力学性质，也使得面层与弹性层之间的交联性更强。
4、本发明在弹性增强体中添加有改性稀土交联体，支链上的脲基嘧啶能够使改性稀土交联体相交联，利用支链上的脲基嘧啶与吲哚单体之间的亲点反应，能够将改性稀土交联体枝接到聚硅氧烷上，稀土离子具有独特的4f电子轨道，受到紫外光刺激时具有三种跃迁方式，进而产生特征荧光，赋予稀土材料良好的荧光性能，而稀土Eu离子的高电荷和较大的离子核有利于与吲哚化合物形成更稳定的相互作用，使弹性体能够剧透高强韧的力学效果。
具体实施方式
下面将对实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
对比例1
S1：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份，按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成面层；
S2：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；润滑剂0.4-0.6份；膨胀剂3-5份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成弹性层；
S3：通过在线挤出、压延成型PVC塑胶跑道弹性层，将面层与弹性结合构成了双层复合型PVC塑胶跑道产品。
实施例1
S1：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份，按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成面层；
S2：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；润滑剂0.4-0.6份；膨胀剂3-5份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成弹性层；
S3：通过在线挤出、压延成型PVC塑胶跑道弹性层，在压延过程中将玻璃纤维丝网格和PP编织网格层热熔在PVC塑胶跑道弹性层的上下面层上，然后进行涂敷工艺，将热熔粘合的PVC塑胶跑道的弹性层与面层下表面涂敷结合，同时增加一层弹性层与弹性层下表面含有聚丙烯网格层涂敷结合构成了五层复合型PVC塑胶跑道产品。
实施例2
S1：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份，耐磨粉体4-10份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成面层；
S2：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；润滑剂0.4-0.6份；膨胀剂3-5份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成弹性层；
S3：通过在线挤出、压延成型PVC塑胶跑道弹性层，在压延过程中将玻璃纤维丝网格和PP编织网格层热熔在PVC塑胶跑道弹性层的上下面层上，然后进行涂敷工艺，将热熔粘合的PVC塑胶跑道的弹性层与面层下表面涂敷结合，同时增加一层弹性层与弹性层下表面含有聚丙烯网格层涂敷结合构成了五层复合型PVC塑胶跑道产品。
实施例3
S1：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份，按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成面层；
S2：将聚氯乙烯树脂100-120份；聚氨酯树脂50-60份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；弹性增强剂5-10份；润滑剂0.4-0.6份；膨胀剂3-5份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成弹性层；
S3：通过在线挤出、压延成型PVC塑胶跑道弹性层，在压延过程中将玻璃纤维丝网格和PP编织网格层热熔在PVC塑胶跑道弹性层的上下面层上，然后进行涂敷工艺，将热熔粘合的PVC塑胶跑道的弹性层与面层下表面涂敷结合，同时增加一层弹性层与弹性层下表面含有聚丙烯网格层涂敷结合构成了五层复合型PVC塑胶跑道产品。
实施例4
S1：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份，耐磨粉体4-10份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成面层；
S2：将聚氯乙烯树脂100-120份；聚氨酯树脂50-60份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；弹性增强剂5-10份；润滑剂0.4-0.6份；膨胀剂3-5份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成弹性层；
S3：通过在线挤出、压延成型PVC塑胶跑道弹性层，在压延过程中将玻璃纤维丝网格和PP编织网格层热熔在PVC塑胶跑道弹性层的上下面层上，然后进行涂敷工艺，将热熔粘合的PVC塑胶跑道的弹性层与面层下表面涂敷结合，同时增加一层弹性层与弹性层下表面含有聚丙烯网格层涂敷结合构成了五层复合型PVC塑胶跑道产品。
将对比例与实施例1-4中的塑胶跑道产品进行性能分析，得到以下：
表1对比例与实施例1-4中的塑胶跑道产品性能测试
Figure BDA0003938315620000061
从表1中可以看出，实施例1中为五层复合型PVC塑胶跑道，对比例中仅仅是将面层与弹性层复合而成，实施例1中弹性层的上下面热熔结合了玻璃纤维丝网格布和抗撕裂PP编织网格层，起到了加强和抗冲击作用；实施例2和实施例4中在面层中增加了耐磨粉体，其中耐磨粉体即为树枝状二氧化硅粉体，实施例2和实施例4中的静态水接触角最大，表明实施例2和实施例4的疏水性较高，这是因为耐磨粉体的微纳结构使得膜层表面的粗糙度得到了一定的增加，提高了疏水性，同时，由于线形粉体之间相互搭连而形成网络，会增加树脂的韧性和强度，而树枝状的阻隔分离使粉体与粉体之间形成均匀的网格结构，在增加韧性和强度，使实施例2和实施例4的垂直变形、拉伸强度和断裂伸长量均高于实施例1；实施例3中仅在弹性层中增加了弹性增强剂，由于弹性体中的氢键含量的增加也使得体系中氢键交联密度的增加，分子之间作用力増强。拉伸强度和分子间约束网络随之变大，分子运动受到更大的限制，进一步提高了弹性层的力学性质，也使得面层与弹性层之间的交联性更强。

Claims (9)

1.一种无缝半预制球场材料的制备工艺，其特征在于：其原料按重量份包括：聚氯乙烯树脂100-120份；聚氨酯树脂50-60份；弹性增强剂5-10份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份；耐磨粉体4-10份；膨胀剂4-7份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份。
2.根据权利要求1所述的一种无缝半预制球场材料的制备工艺，其特征在于：包括以下制备步骤：
S1：将聚氯乙烯树脂100-120份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；紫外线吸收剂0.3-0.5份；润滑剂0.4-0.6份；耐磨止滑剂7-10份，耐磨粉体4-10份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成面层；
S2：将聚氯乙烯树脂100-120份；聚氨酯树脂50-60份；稳定剂2.5-3份；增塑剂60-80份；抗冲改性剂4-6份；抗氧化剂0.2-0.3份；弹性增强剂5-10份；润滑剂0.4-0.6份；膨胀剂3-5份；成型剂2-5份；碳酸钙50份；粉煤灰活化料15-20份；按配比称量好后进行高度混合，热混温度为120-130℃之间，热混时间10-20min，然后再将其进行冷混，冷混温度为40-50℃；然后进行挤出、压延成型形成弹性层；
S3：通过在线挤出、压延成型PVC塑胶跑道弹性层，在压延过程中将玻璃纤维丝网格和PP编织网格层热熔在PVC塑胶跑道弹性层的上下面层上，然后进行涂敷工艺，将热熔粘合的PVC塑胶跑道的弹性层与面层下表面涂敷结合，同时增加一层弹性层与弹性层下表面含有聚丙烯网格层涂敷结合构成了五层复合型PVC塑胶跑道产品。
3.根据权利要求1所述的一种无缝半预制球场材料的制备工艺，其特征在于：所述耐磨粉体为树枝状二氧化硅粉体。
4.根据权利要求3所述的一种无缝半预制球场材料的制备工艺，其特征在于：所述树枝状二氧化硅粉体通过以下步骤制备：
S1：采用160mL正戊醇，将质量体积比为1-1.5g：10-15mL的聚乙烯吡咯烷酮和正戊醇混合搅拌均匀，待完全溶解后，滴加适当的0.18g/L的二水柠檬酸钠水溶液，混合均匀；然后在搅拌中缓慢滴加2-4mL氨水，静置后滴加适当的1-3mL正硅酸乙酯，并在90-95℃的油浴中反应2.5-3h；反应结束后进行抽滤、洗涤、烘干后得到中间体二氧化硅；
S2：将步骤S1中的中间体二氧化硅分散到乙醇和去离子水中，加入0.1-0.3g的盐酸多巴胺，并用适量的三羟甲基氨基甲烷调节pH为8-9，然后滴入1-1.2mL的正硅酸乙酯，并在30-35℃的油浴环境中静置24-36h，反应结束后进行抽滤、洗涤和烘干后得到树枝状二氧化硅粉体。
5.根据权利要求1所述的一种无缝半预制球场材料的制备工艺，其特征在于：所述弹性增强体通过以下步骤制备形成：(1)在异氟尔酮异氰酸酯中逐渐滴加经除水处理的羟乙氧基丙基封端聚硅氧烷，边搅拌边滴加；使其在80-85℃反应2.5-3h后得到预聚体；(2)将咪唑烷基脲溶于四氢呋喃中，同时滴加一滴催化剂，超声处理后降低在搅拌条件下逐渐滴加到步骤(1)中的预聚体中，滴加完成后在70-75℃下反应2-4h，同时加入改性稀土交联体后超声30min，反应结束后得到弹性增强体。
6.根据权利要求5所述的一种无缝半预制球场材料的制备工艺，其特征在于：所述羟乙氧基丙基封端聚硅氧烷：咪唑烷基脲：异氟尔酮异氰酸酯的摩尔比为1：2-4：2-3。
7.根据权利要求5所述的一种无缝半预制球场材料的制备工艺，其特征在于：所述改性稀土交联体通过以下步骤制备：(1)将摩尔质量比为10:1的侧氨基聚硅氧烷和环氧吲哚单体进行混合后加入到四氢呋喃中，搅拌20-30min后逐渐滴加稀土溶液，继续搅拌25min；然后进行在120-130℃下反应24-30h，得到改性稀土交联体。
8.根据权利要求7所述的一种无缝半预制球场材料的制备工艺，其特征在于：所述侧氨基聚硅氧烷通过以下步骤制备：将八甲基环四硅氧烷和γ-氨丙基三甲氧基硅烷、四甲基氢氧化铵催化剂混合并在氮气保护下升温至100-110℃反应30-50min；然后加入六甲基二硅氧烷持续反应2-3h；反应结束后升温至160-170℃持续反应1-1.5h，反应结束后在70-75℃下抽真空后，得到侧氨基聚硅氧烷。
9.根据权利要求8所述的一种无缝半预制球场材料的制备工艺，其特征在于：所述八甲基环四硅氧烷、γ-氨丙基三甲氧基硅烷的摩尔比为10：1。
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