CN102971271B - 复合路面结构 - Google Patents
复合路面结构 Download PDFInfo
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- CN102971271B CN102971271B CN201080063254.8A CN201080063254A CN102971271B CN 102971271 B CN102971271 B CN 102971271B CN 201080063254 A CN201080063254 A CN 201080063254A CN 102971271 B CN102971271 B CN 102971271B
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- glass
- aggregate particle
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- amino silane
- road surface
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- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims abstract description 52
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- 238000010586 diagram Methods 0.000 description 3
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- NFGXHKASABOEEW-UHFFFAOYSA-N 1-methylethyl 11-methoxy-3,7,11-trimethyl-2,4-dodecadienoate Chemical compound COC(C)(C)CCCC(C)CC=CC(C)=CC(=O)OC(C)C NFGXHKASABOEEW-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- BBRDBAPYBRAOHR-UHFFFAOYSA-N O.N[SiH3] Chemical compound O.N[SiH3] BBRDBAPYBRAOHR-UHFFFAOYSA-N 0.000 description 1
- 230000002152 alkylating effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
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Classifications
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Abstract
公开了一种制备复合路面结构的方法,所述复合路面结构包含活化的玻璃集料颗粒和聚合物型粘结剂组合物。还公开了用于活化玻璃集料颗粒的系统和方法。在一个实施方案中,玻璃集料颗粒的直径为约0.1-约0.5英寸并曝露于溶液中的偶联剂,例如氨基硅烷水溶液,用量为基于100重量份玻璃集料颗粒计为约1-约10重量份的溶液,其中所述水溶液包含基于100重量份的溶液计约0.01-约5.0重量份的偶联剂。在曝露之后,使所述活化剂与玻璃集料在预定的时间期间内反应并键合从而提供活化的玻璃颗粒,例如甲硅烷基化的玻璃颗粒,然后干燥所述玻璃颗粒。一旦将所述活化的玻璃和聚合物型粘结剂组合物混合,使它们反应并键合从而提供复合路面结构。
Description
本申请在2010年12月1日作为PCT国际专利申请提交,以Reynolds Consumer Products,Inc.,美国公司,和BASF公司,美国公司作为指定除美国以外的所有国家的申请人,以及Steven Hicks,美国公民,和David K.Bower,美国公民,和William Handlos,美国公民,作为仅仅指定美国的申请人,要求在2009年12月21日提交的美国专利申请序号61/288,637的优先权。
技术领域
本公开文本涉及复合路面结构,和用于制备复合路面结构的系统和方法,所述复合路面结构包含甲硅烷基化的玻璃集料和聚合物型粘结剂组合物。
背景技术
废弃或回收的玻璃通常通过广泛的回收程序供给二次利用。这类玻璃的一种这样的二次利用是作为路面结构,例如停车场表面中的构成组分。
然而,回收玻璃的量通常在许多路面结构中必须加以限制,以便满足最低性能标准如抗碎强度和弯曲强度。如果路面结构不能满足这些标准,路面结构可能失效并表现出开裂和散裂的迹象。在符合可接受的性能标准的同时可以使回收玻璃的引入最大化的路面结构的改进是令人期望的。
发明简述
本公开文本的一个方面涉及用于制备复合路面结构的方法,其中玻璃集料颗粒的直径为约0.1-约0.5英寸并曝露于溶液中的偶联剂,例如氨基硅烷水溶液,用量为基于100重量份玻璃集料颗粒计为约0.01-约5.0重量份的溶液,其中氨基硅烷水溶液包含基于100重量份的溶液计为约0.01-约5.0重量份的氨基硅烷。在曝露之后,使氨基硅烷与玻璃集料在预定的时间期间内反应并键合从而提供活化的或甲硅烷基化的玻璃颗粒。然后,干燥所述活化的或甲硅烷基化的玻璃颗粒并随后使其能够与聚合物型粘结剂组合物混合。一旦将甲硅烷基化的玻璃和聚合物型粘结剂组合物混合,使它们反应并键合从而提供复合路面结构。
根据上述方法,通过每2000磅玻璃集料颗粒施加分散在约19-约190磅水中的约0.002-约10磅氨基硅烷,可以制得具有超过1500psi的抗碎强度和超过700psi的弯曲强度的路面结构。这是可能的,因为玻璃集料颗粒具有与氨基硅烷反应并键合的曝露表面。接着,聚合物型粘结剂组合物与至少一些氨基硅烷反应并键合。这类键合比聚合物型粘结剂直接与未甲硅烷基化的玻璃的键合更强,后者的抗碎强度通常仅为约1000psi且弯曲强度低于500psi。因此,通过在将玻璃集料颗粒与聚合物型粘结剂混合之前将玻璃集料颗粒甲硅烷基化,实现了50%的抗碎强度和弯曲强度的提升。此外,通过调节聚合物型粘结剂组合物的量并添加更多的微细颗粒,如由压碎器制备的玻璃砂颗粒,所公开的路面结构可以被制成水可渗透的或水不可渗透的。
还公开了一种用于提供活化的玻璃集料颗粒,如甲硅烷基化的玻璃基料颗粒的系统。所述系统包括构造和设置用于承载并以第一输送速率输送玻璃集料颗粒的传送系统,以及其构造和设置用于使处于传送系统上的玻璃集料颗粒曝露于溶液中的偶联剂,例如氨基硅烷水溶液的施加系统。还提供干燥器,其与所述施加系统有间隔并且配置用于将强制通风和加热中的至少一种引导到处于传送系统上的玻璃集料上。采用所公开的系统,第一输送速率可被设定为使得处于传送系统上的玻璃集料在预定时间期间之后首先曝露于干燥器,所述预定时间紧随在将溶液中的偶联剂施加到所述玻璃集料颗粒上之后。
附图简述
图1显示了用于制备包含甲硅烷基化的玻璃集料颗粒和聚合物型粘结剂组合物的复合路面结构的方法的流程图。
图2是显示用于提供在图1中所示的方法中的活化的玻璃集料颗粒的第一系统的示意图。
图3是显示用于提供在图1中所示的方法中的活化的玻璃集料颗粒的第二系统的示意图。
图4是显示用于将在图1中所示的方法中的活化的玻璃基料颗粒和聚合物型粘结剂组合物混合的系统的示意图。
详细说明
本公开文本涉及用于制备复合路面结构的方法,所述复合路面结构包含活化的玻璃基料颗粒和聚合物型粘结剂组合物。这样的方法的一个实例示于图1中。
在所述方法的一个步骤中,提供玻璃并随后将玻璃转化为玻璃集料颗粒。所述玻璃可以是任何类型并可以是透明的,染色的,和/或着色的。优选地,所述玻璃是消费后废弃回收的玻璃,以便使总体成本和环境成本最小化。废弃玻璃可以以各种途径转化,如以描述于Kaul的美国专利申请2009/0067924和2009/0067925的方式,这两篇文献在此通过引用并入本文。玻璃集料颗粒由经过压碎、翻滚并加热以使其边缘圆滑并去除非玻璃杂质的玻璃形成。合适的回收玻璃描述于Arnott的美国专利7,041,221,该文献在此通过引用并入本发明。废弃玻璃通过将玻璃压碎至期望的尺寸,例如1/16英寸-约1英寸,优选1/4英寸-约1/2英寸,更优选地约3/8英寸来制备。据信一旦铺设复合路面结构,减少玻璃的平均直径会降低集料从复合路面结构的散裂。所述玻璃可以用冲击式破碎机、锤式粉碎机、圆锥破碎机或滚筒式破碎机。优选地,可回收的玻璃用滚筒式破碎机进行破碎,因为可以实现更好的油吸收。
任何预压碎、预筛分、压碎、清洗、和干燥的顺序均可使用。在优选的实施方案中,压碎的玻璃首先预压碎并预筛分。如果玻璃是干净的,则无需预压碎或预筛分。预压碎的玻璃通过筛孔,其可以包括英寸筛孔,双层或三层筛或至少两种筛孔的组合。一旦通过筛孔进行预筛分,优选地将玻璃进一步用滚筒式破碎机压碎并随后将压碎的玻璃在清洗之后干燥,优选地在至少100℉的温度下或,更优选地,在至少350℉的温度下。随后,将压碎的玻璃筛分,优选通过至少40目筛,或更优选地通过30目筛,或最优选地通过20目筛。要注意的是上述压碎方法可以产生约50重量%的玻璃集料颗粒和约50重量%的玻璃砂颗粒。合适的级份的玻璃是从Tomahawk,WI Glass Plus Inc.可商购获得的。
一旦废弃的或回收的玻璃已经被转化形成玻璃集料颗粒,所述颗粒然后曝露于偶联剂,其中偶联剂与所述玻璃反应并键合从而形成活化的玻璃集料颗粒。如在本申请中所使用的那样,措辞“活化的玻璃集料颗粒”意在描述这样的玻璃集料颗粒,其外表面已经至少部分被与该外表面发生化学反应并键合的物质所涂覆。如在本发明中所使用的那样,措辞“偶联剂”意思是包括与玻璃和聚合物型粘结剂组合物发生化学反应并键合从而形成玻璃与聚合物型粘结剂组合物之间的更强的键(与玻璃和聚合物型粘结剂组合物之间的直接的键相比)的任何物质。示例性的偶联剂包括具有羟基、硫醇、环氧、和/或伯胺和仲胺官能团的硅烷。特别有用的偶联剂的实例是氨基硅烷,其会引起玻璃集料颗粒活化,或者更具体地,甲硅烷基化或硅烷化。要注意的是,任何硅烷或硅醇官能团均会起到使玻璃集料颗粒活化或甲硅烷基化的作用。然而,氨基硅烷是优选的,因为氨基硅烷易于溶解于水,这意味着不需要有机溶剂。就此而言,使用水溶液中的氨基硅烷降低了所述方法的总体费用。氨基硅烷浓缩液可从Momentive PerformanceMaterials of Albany,NY商购获得,它们的实例以
A-1100和
A-1120的形式出售。为了使玻璃集料颗粒的甲硅烷基化程度最大化,将氨基硅烷进一步用水稀释以形成氨基硅烷水溶液。优选地,所述溶液包含约0.01-约5.0重量份的氨基硅烷,且更优选地包含约0.3重量份的氨基硅烷,分别基于100重量份的溶液计。已经发现使用约0.3重量份的
A-1120导致形成最佳甲硅烷基化的玻璃集料颗粒,其具有更高的与聚合物型粘结剂组合物的键合强度。据信该更大的强度来源于反应的氨基硅烷与玻璃集料颗粒之间形成的单层,而不是形成多层。就此而言,更高性能的复合路面结构要通过最佳甲硅烷基化的玻璃集料颗粒得到。当氨基硅烷浓度过低时,玻璃集料颗粒的更少的曝露表面会被活化或甲硅烷基化,并且复合路面结构不会那样强,因为更大份额的玻璃集料颗粒的曝露表面会直接与聚合物型粘结剂颗粒键合。相反,在氨基硅烷浓度过量的情况下,更可能的是,活化的或甲硅烷基化的玻璃集料的更多的曝露表面会形成多层并且也彼此键合而不是与聚合物型粘结剂组合物键合,并由此形成降低强度的复合路面结构。
在氨基硅烷水溶液用作偶联剂以活化玻璃集料颗粒的情况下,所述溶液可以以基于100重量份的玻璃集料颗粒计约1-约10重量份溶液的比例施加。更优选地,氨基硅烷水溶液以约5重量份的氨基硅烷溶液与100重量份的玻璃集料的比例施加。在该比例下,可进行最佳的玻璃集料颗粒的甲硅烷基化,而溶液浪费最小化。
存在许多可以将玻璃集料颗粒曝露于偶联剂的途径。例如,可以施用间歇法,其中使集料和偶联剂,在水溶液中,共同在预定的时间期间,如5分钟内翻滚。或者,如更详细地在下文中对于图2所述,可以使用连续法,其中将偶联剂喷洒和/或分散到在传送系统上的玻璃集料颗粒上。还有另一个更详细地在下文中对于图3所述的实例,可以使用连续法,其中将玻璃集料颗粒输送通过一定体积的含有偶联剂的水溶液,其中所述体积保存于通道、容器或槽中。本领域技术人员会理解,在不偏离本文提出的理念的前提下,可以使用其它将玻璃集料颗粒曝露于偶联剂,更具体地曝露于氨基硅烷水溶液的方法。
一旦氨基硅烷水溶液与玻璃集料颗粒接触,氨基硅烷会开始与玻璃集料颗粒反应并键合。为了优化玻璃的甲硅烷基化,氨基硅烷溶液应当在预定的时间期间内保持与玻璃集料颗粒接触。优选地,预定的时间期间为约15秒-两分钟,以便在干燥现已甲硅烷基化的玻璃集料颗粒之前已经进行足够的反应。
一旦将玻璃集料颗粒足够地甲硅烷基化,可以干燥所述甲硅烷基化的玻璃集料颗粒。干燥可以以多种途径实施。例如,所述甲硅烷基化的玻璃集料颗粒可以例如通过排水与溶液分开,并可以在环境条件下通风干燥。在期望加速干燥的情况下,可以使用鼓风机来在甲硅烷基化的玻璃集料颗粒上方引入强制通风。在期望进一步强制通风的情况下,可以使用加热器来在甲硅烷基化的玻璃集料颗粒上方引入强制通风和/或加热。在没有加热进行干燥时,甲硅烷基化过程将在最高至约24小时的时间期间内持续进行。就此而言,优选将甲硅烷基化的玻璃集料颗粒储存足够的时间以使得在将玻璃集料颗粒用于复合路面结构之前进行充分的甲硅烷基化。当使用加热时,通常约120℉-200℉,反应时间显著缩短以使得甲硅烷基化的玻璃集料颗粒即刻用于复合路面结构。在该时间期间内和该时间期间之后,可以储存甲硅烷基化的玻璃集料颗粒或将其输送到最终使用场所,如建筑工地。所述颗粒可以在各种分散的容器,如包装袋(superstack)和转鼓(drum)中储存。或者,所述颗粒可以以较大的体量保存,如轨道车和贮罐的情况。
一旦甲硅烷基化的玻璃颗粒已经被输送到最终应用现场,可以将所述集料与聚合物型树脂粘结剂混合以形成复合路面结构。聚合物型树脂粘结剂的完整论述,以及它们在与集料混合从而形成复合路面结构的用途,在专利合作条约申请PCT/PCT/EP2010/058989(2010年6月24日提交)中提供,该文献的全部内容通过引用并入本文。这类粘结剂的进一步论述以及它们的用途在Kaul的美国专利申请公开文本2009/0067924和2009/0067295中提供。其它合适的粘结剂组合物,对于本发明的目的而言,作为“弹性体组合物”公开于美国临时专利申请序号61/288,637中,该文献的公开内容通过引用并入本文。
聚合物型粘结剂组合物的一个实例是双组份组合物的反应产物,所述两部分组合物包含第一组分和第二组分。就此而言,应理解的是双组份是指这些组分。可以使用其它额外的组分。所述粘结剂组合物可以指2K体系。将第一组分与第二组分混合以形成所述粘结剂组合物的反应产物。本文所用的术语“反应产物”意在涵盖所述第一组分和第二组分之间的相互作用和/或反应的所有阶段,包括所述第一组分与第二组分的反应产物,即使当反应产物接触集料从而形成复合材料时。通常,所述反应产物在所述第一组份与第二组分相互接触时开始形成。在一个实施方案中,所述反应产物是聚氨酯,其中所述第一组份是异氰酸酯组分而所述第二组分是异氰酸酯反应性组分。
一旦聚合物型粘结剂组合物与甲硅烷基化的玻璃集料颗粒混合,所述聚合物型粘结剂组合物会与甲硅烷基化的玻璃反应并键合从而形成复合路面结构。在所述组合物仍可加工时,可以将所述复合路面结构施加到压实的表面并随后刮平并抹平。一旦所述聚合物型粘结剂组合物已经充分固化,所述复合路面结构就可供使用。
制备复合路面结构的两个实例并对其进行测试,其中每个实例均由基于异氰酸酯的聚合物型粘结剂组合物和集料组成,100%的集料是平均尺寸为约1/4英寸的玻璃集料。在第一个实例中,使用未活化的/未甲硅烷基化的玻璃集料颗粒,而在第二个实例中使用活化的/甲硅烷基化的玻璃集料颗粒。下面的表1显示了用于第一实例和第二实例二者的聚合物型粘结剂组合物的成分和比例。
表1
为了制备活化的用于第二实例的玻璃集料颗粒,通过将玻璃颗粒与含有0.3重量%的
A-1120(可商购自MomentivePerformance Products)的水溶液翻滚而将所述玻璃甲硅烷基化。为了活化或甲硅烷基化所述玻璃,将5份所述水溶液与100份玻璃翻滚5分钟。然后将所述水溶液排干并干燥所述玻璃。为了形成两个实例的复合路面结构材料,将4.2重量%聚合物型粘结剂组合物与95.8重量%的集料混合。使复合路面结构材料的第一实例和第二实例完全固化并随后进行测试。所述测试结果呈现在下文的表2中。
表2
从上述数据可不难理解,在复合路面结构中代替原料玻璃使用活化的或甲硅烷基化的玻璃显著提高了抗碎强度和弯曲强度,而没有牺牲在渗透路面应用方面的孔隙度和渗透性。例如,测试数据显示当使用甲硅烷基化的玻璃集料颗粒代替未反应的玻璃集料颗粒时,复合路面材料抗碎强度提高了约50%。在制备复合路面结构的应用领域,可以易于获得每种上述数值,而至少约1300psi的最小抗碎强度可以反复实现,即使复合材料的组成组分有一些变化。由使用所公开的多孔复合路面结构(所述复合路面结构使用活化的玻璃)得到的至少两种暗含意义是:1)复合路面结构的厚度可以降低;和2)所述复合路面结构可以用于现在不适于现有技术的基于玻璃集料的路面结构的应用领域。
参见图2,示出了用于制备所公开的活化的或甲硅烷基化的玻璃集料颗粒的系统100。该系统的一个方面是玻璃集料源110。玻璃集料源110用于将玻璃集料101提供给传送系统120。在一个实施方案中,玻璃集料源10可以包括滚筒式破碎机和加热器以去除废玻璃杂质,如上文所述。
系统100的另一个方面是传送系统120。传送系统120用于承载并将玻璃集料颗粒101从玻璃集料源110输送到集料收集站150。传送系统120还用于承载玻璃集料颗粒101,在它们活化或甲硅烷基化并随后干燥期间。许多种类的传送系统适于该用途。在图2所示的示例性实施方式中,传送系统120包括带式传送器122,所述带式传送器具有水可渗透的带以使得水溶液能够透过所述带。在该实例中,传送系统被设置用于在约1吨-20吨玻璃集料每小时,且最优选地在14吨每小时的输送速率下输送玻璃集料颗粒。本领域技术人员会理解的是,许多其它传送系统适于上述目的。
系统100的还有另一个方面是施加系统130。施加系统130用于使处于传送系统120上的玻璃集料颗粒曝露于溶液中的偶联剂,例如氨基硅烷水溶液。在图2所示的实例中,施加系统130包括氨基硅烷水溶液贮罐132和与贮罐132流体连接的喷洒器134。在操作中,溶液从贮罐132被泵送到喷洒器134并随后喷洒到玻璃集料颗粒上。优选地,且如上所述,约5重量份的溶液被施加给100重量份的玻璃集料颗粒。所述溶液,在接触玻璃集料颗粒之后通过传送系统120排出,其中所述溶液可被处理掉或再循环回到贮罐132。一旦所述溶液接触玻璃集料颗粒,所述颗粒被甲硅烷基化。
系统100的另一方面是干燥器140。干燥器140用于从活化的或甲硅烷基化的玻璃集料干燥掉水,其中使用加热促进玻璃集料颗粒与偶联剂之间的反应。许多类型的干燥器适于该目的。在图1所示的示例性实施方案中,干燥器140是强制通风加热器,其将热空气引导到玻璃集料颗粒上。本领域技术人员会理解的是,燃烧器、辐射加热器和没有加热器的鼓风机也可以使用。为了在干燥之前使玻璃集料颗粒足够甲硅烷基化,干燥器140显示离所属喷洒器的间距为距离D。结合输送速率或具体的传送系统120的带速,距离D被设定为使得玻璃集料颗粒与偶联剂,例如氨基硅烷,在干燥所述颗粒之前,在预定的时间期间,优选约15秒-两分钟内进行反应。
参见图2,显示了另一用于提供活化的或甲硅烷基化的玻璃集料颗粒的示例性系统。在图2中所示的该系统的若干特征类似于在图1中所示的那些且以类似的序号示出,只要合适。上述与示于图1的系统相关的描述并入图2所示的系统的描述。在图2中,示出了系统200。玻璃集料源110和玻璃集料收集站150类似于图1所示那样设置,干燥器140也一样。然而,在特定的实施方案中,干燥器140是不具有加热元件的强制通风系统。现在将讨论系统100与200之间更显著的区别。
系统200的一个方面是传送系统120,其包括两个传送器来代替图1所示的单传送器。在图2所示的示例性实施方案中,提供传送器124,其构造且设置用于将集料101从集料源110配送至传送器120。传送器124还用于使玻璃集料颗粒曝露于溶液中的偶联剂,例如氨基硅烷水溶液。然而,代替图1的喷洒器,图2中的施加系统130包含在传送器124自身中。传送器124是具有置于通道128中的螺旋杆126的螺杆型传送器。通道128和螺旋杆126二者以预设的角度α放置,使得通道128被配向为沿容积A保持一定体积的包含偶联剂的溶液,例如氨基硅烷水溶液。如实例中的实施方案所示,角度α为约从水平面起20度。本领域技术人员应理解的是,改变角度α将相应地改变容积A的长度。如在该设置中所示,通过螺旋杆126从源100输送的玻璃集料颗粒101在所述颗粒处于容积A时部分地或完全地浸没在所述溶液中。当所述颗粒向上沿通道128通过并进入容积B时,所述溶液不再存在且所述颗粒开始滴干,由此过量的溶液向后向下排向通道128的底部区域,容积A。该设置使得在提供溶液在颗粒上高度覆盖的同时浪费非常少。如系统100那样,系统200的干燥器140与颗粒曝露于氨基硅烷的区域的间距为距离D,以便有足够的时间使颗粒充分开始活化或甲硅烷基化过程。
参见图4,示出用于制备使用来自系统100或200的活化或甲硅烷基化的玻璃集料颗粒的复合路面结构系统300。系统300在PCT/PCT/EP2010/058989中充分公开,下文对其做出简述。如所示的那样,系统300包括玻璃集料源,在此是活化的或甲硅烷基化的玻璃集料颗粒源310。系统300还包括用于保存第一组份聚合物型粘结剂组合物的容器320和用于保存第二组分组合物的容器330。将所述第一组分和第二组分在混合站340处混合在一起,其中至少部分地产生反应产物。在所示的特别实施方案中,经施加器350将反应产物提供给混合系统360,所述施加器可以是喷洒器,而沿混合系统360经置于通道364中的螺旋杆362输送甲硅烷基化的玻璃集料颗粒。一旦反应产物和甲硅烷基化的玻璃集料颗粒二者混合并在混合系统360内输送,复合路面结构形成并可以然后被配送到铺设区域。在氨基硅烷用作偶联剂的情况下,得到的复合路面结构会包含约0.002-约10.0磅氨基硅烷每约2000磅玻璃集料颗粒,且优选地约0.3磅氨基硅烷每约2000磅玻璃集料颗粒。
上述是示例性的原理。可以做出许多实施方案。
Claims (26)
1.制备复合路面结构的方法,所述方法包括如下步骤:
提供直径为1/16-1/2英寸的玻璃集料颗粒;
提供聚合物型粘结剂组合物;
使玻璃集料颗粒曝露于偶联剂,所述偶联剂提高玻璃集料颗粒与聚合物型粘结剂组合物之间的键合强度;
使偶联剂与玻璃集料颗粒在预定的时间期间反应并键合从而提供活化的玻璃集料颗粒;
干燥所述活化的玻璃集料颗粒;
将干燥的活化的玻璃集料颗粒与聚合物型粘结剂组合物混合以形成混合物;
将所述混合物施加到压实的表面;和
使聚合物型粘结剂组合物与干燥的活化的玻璃集料颗粒反应并键合从而提供复合路面结构;
其中所述聚合物型粘结剂组合物包含含有聚合物型异氰酸酯的第一组分和含有异氰酸酯反应性组分的第二组分。
2.如权利要求1所述的方法,其中:
所述使玻璃集料颗粒曝露于偶联剂的步骤包括使玻璃集料颗粒曝露于氨基硅烷水溶液,所述氨基硅烷水溶液的用量为基于100重量份的玻璃集料颗粒计1-10重量份的溶液,所述氨基硅烷水溶液包含基于100重量份的溶液计0.01-5.0重量份的氨基硅烷;和
所述使偶联剂与玻璃集料颗粒反应并键合从而提供活化的玻璃颗粒的步骤包括使氨基硅烷与玻璃集料颗粒反应并键合从而提供甲硅烷基化的玻璃集料颗粒。
3.如权利要求2所述的方法,其中所述使玻璃集料颗粒曝露于氨基硅烷水溶液的步骤包括使玻璃集料颗粒曝露于氨基硅烷水溶液,所述氨基硅烷水溶液的用量为基于100重量份的玻璃集料颗粒计为5重量份的溶液。
4.如权利要求2-3中任一项所述的方法,其中所述使玻璃集料颗粒曝露于氨基硅烷水溶液的步骤包括使玻璃集料颗粒曝露于氨基硅烷水溶液,所述氨基硅烷水溶液包含基于100重量份的溶液计0.3重量份的氨基硅烷。
5.如权利要求2所述的方法,其中所述使氨基硅烷与玻璃集料颗粒在预定的时间期间内反应并键合的步骤包括在干燥甲硅烷基化的玻璃集料颗粒的步骤之前,使氨基硅烷与玻璃集料颗粒在至少15秒的期间内反应并键合。
6.如权利要求1所述的方法,其中所述聚合物型粘结剂组合物包含第一组分和第二组分的反应产物。
7.如权利要求1所述的方法,其中所述提供玻璃集料颗粒的步骤包括提供回收的玻璃。
8.复合路面结构,其包含:
玻璃集料颗粒,其具有曝露的表面且具有直径为1/16-1/2英寸的尺寸,所述玻璃集料颗粒的至少一些曝露的表面与偶联剂反应并键合;
聚合物型粘结剂组合物与至少一些已经与玻璃集料颗粒反应并键合的偶联剂反应并键合;
其中所述复合路面结构具有至少1300磅/平方英寸的结构强度;和
其中所述聚合物型粘结剂组合物包含含有聚合物型异氰酸酯的第一组分和含有异氰酸酯反应性组分的第二组分。
9.如权利要求8所述的复合路面结构,其中所述偶联剂为氨基硅烷。
10.如权利要求8-9中任一项所述的复合路面结构,其中所述复合物包含0.002-10磅的氨基硅烷每2000磅玻璃集料颗粒。
11.如权利要求8-9中任一项所述的复合路面结构,其中所述复合物包含0.3磅氨基硅烷每2000磅玻璃集料颗粒。
12.如权利要求8所述的复合路面结构,其中所述聚合物型粘结剂组合物包含第一组分和第二组分的反应产物。
13.如权利要求8所述的复合路面结构,其中所述复合物是水可渗透的。
14.如权利要求8所述的复合路面结构,其中所述复合物是水不可渗透的。
15.用于制备活化的玻璃集料的系统,其包括:
传送系统,其构造和设置用于承载并以第一输送速率输送玻璃集料颗粒;
施加系统,其构造和设置用于使处于传送系统上的玻璃集料颗粒曝露于溶液中的偶联剂;和
干燥器,其与所述施加系统有间隔并且配置用于将强制通风和加热中的至少一种引导到处于传送系统上的玻璃集料上;
第一输送速率使得处于传送系统上的玻璃集料在预定时间期间之后首先曝露于干燥器,所述预定时间紧随在将溶液中的偶联剂施加到所述玻璃集料颗粒上之后。
16.如权利要求15所述的系统,其中所述在溶液中的偶联剂是氨基硅烷水溶液和所述活化的玻璃集料是甲硅烷基化的玻璃集料。
17.如权利要求15-16任一项所述的系统,其中第一输送速率为1吨-20吨玻璃集料每小时。
18.如权利要求15所述的系统,其中所述传送系统包括带式传送器。
19.如权利要求18所述的系统,其中所述带式传送器是水可渗透的。
20.如权利要求16所述的系统,其中所述传送系统包括带式传送器且其中所述施加系统包括喷洒器,其构造和设置用于将氨基硅烷水溶液喷洒到处于带式传送器的玻璃集料颗粒上。
21.如权利要求18所述的系统,其中所述干燥器是位于所述带式传送器正上方的加热器。
22.如权利要求15所述的系统,其中所述传送系统包括置于通道中的螺旋式传送器。
23.如权利要求22所述的系统,其中所述通道形成至少部分施加系统并将氨基硅烷水溶液保留在通道中。
24.如权利要求22-23中任一项所述的系统,其中所述通道以这样的角度放置使得氨基硅烷水溶液仅存在于通道的一部分中。
25.如权利要求22所述的系统,其中所述传送系统进一步包括带式传送器,该带式传送器设置用来接收来自螺旋式传送器的玻璃集料颗粒。
26.如权利要求25所述的系统,其中所述干燥器是位于所述带式传送器正上方的鼓风机。
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