CN102105617A - 热喷涂遮蔽胶带 - Google Patents
热喷涂遮蔽胶带 Download PDFInfo
- Publication number
- CN102105617A CN102105617A CN2009801294762A CN200980129476A CN102105617A CN 102105617 A CN102105617 A CN 102105617A CN 2009801294762 A CN2009801294762 A CN 2009801294762A CN 200980129476 A CN200980129476 A CN 200980129476A CN 102105617 A CN102105617 A CN 102105617A
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- Prior art keywords
- thermospray
- substrate
- masking tape
- layer
- upper layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
一种热喷涂遮蔽胶带,该热喷涂遮蔽胶带包括一种衬底,该衬底具有一个第一主要表面和一个第二主要表面以及一个覆盖在该衬底的第一主要表面上面的一个表面层。该表面层是由一种弹性体形成,该弹性体具有大于约600磅/平方英寸的极限拉伸强度。
Description
披露领域
本披露总体上涉及热喷涂遮蔽胶带。
背景
部件的等离子体或火焰喷涂法是一种用于将一种保护性的金属或陶瓷涂层施加到该部件上的已知技术。这种工艺通过使该金属或陶器达到熔点并且喷射到一个表面上以产生一个薄涂层从而在该部件上提供一种热喷涂。等离子体喷涂典型地是使用一种等离子体枪或类似装置实现的。
在该等离子体喷涂工艺中,重要的是将这些部件的某些区域遮蔽起来以避免施加该涂层。遮蔽部件的原因包括防止该涂层进入该部件中的缝隙,保持尺寸在一种临界范围之内、减轻重量、等。为实现这类掩蔽,将一种遮蔽胶带施加到其中不想要该涂层的这些区域上。
该遮蔽胶带必须展示出优异的耐热性以及耐磨性,二者都用于保护邻接表面免于喷砂处理(该喷砂处理典型地用作一种表面预加工)以及该实际的等离子体喷涂。在这种要求的工艺期间这种胶带不得剥离或磨损,并且被设计成能迅速并且容易地从该部件表面释放而没有留下粘合剂残余物。
常规的等离子体喷涂胶带典型地包括玻璃织物,可以或不可以对该玻璃织物进行处理。这些等离子体喷涂胶带可以包括一种低分子量液体有机硅化合物顶部涂层以及一种高温有机硅压敏粘合剂背面涂层。为了方便的操作,通常采用一种隔离衬垫。其他类型的遮蔽胶带包括层压到一种纤维玻璃布上的一种薄铝箔。
虽然这类遮蔽胶带对典型的等离子体喷涂工艺是有效的,它们对一种最近引入的、要求更多的工艺(称为高速氧燃料喷涂(HVOF)工艺)无效。这种工艺是一种连续燃烧工艺,其中该喷射枪基本上是一种火箭,其中将粉末注入排出气流中。该排出气流是在超音速下排出(数千英尺/秒)。
这样,一种改进的热喷涂遮蔽胶带以及一种形成一种改进胶带的方法应当是所希望的。
发明概述
在一个具体实施方案中,一种热喷涂遮蔽胶带包括一种衬底,该衬底具有一个第一主要表面和一个第二主要表面以及一个覆盖在该衬底的第一主要表面上面的表面层。该表面层是由一种弹性体形成,该弹性体具有大于约600磅/平方英寸的一种极限拉伸强度。
在一个实施方案中,一种热喷涂遮蔽胶带包括一种衬底,该衬底具有一个第一主要表面和一个第二主要表面以及一个覆盖在该衬底的第一主要表面上面的表面层。该表面层是由高稠度树胶橡胶(HCR)组成。在该HVOF工艺期间该胶带具有对高温、高压、以及高速度的耐受性。
在另一个实施方案中,形成一种热喷涂遮蔽胶带的一种方法包括提供一种衬底,该衬底具有第一主要表面和第二主要表面以及一个覆盖在该衬底的第一主要表面上面的表面层。该表面层是由一种弹性体形成,该弹性体具有大于约600磅/平方英寸的一种极限拉伸强度。
附图简要说明
通过参考附图可以更好地理解本披露,并且使其许多特征和优点对于本领域的普通技术人员变得清楚。
图1包括一种示例性的热喷涂遮蔽胶带的一个说明;
图2是一个流程图,说明形成一种热喷涂遮蔽胶带的一种方法;
图3是一个流程图,说明喷涂一种物品的一种方法,并且
图4包括对于一种示例性的热喷涂遮蔽胶带的模拟的HVOF测试数据的一个图表。
附图说明
在一个具体实施方案中,一种热喷涂遮蔽胶带包括一种衬底,该衬底具有一个第一主要表面和一个第二主要表面。该热喷涂遮蔽胶带包括一个表面层,该表面层覆盖在该第一主要表面上面。在一个实施方案中,可以将该表面层直接布置在该衬底的第一主要表面上面,并且与之直接接触,而没有任何插入层或结系层。特别地,该表面层提供了对于该衬底令人希望的附着力。此外,该热喷涂遮蔽胶带具有对与高速氧燃料喷涂(HVOF)工艺相关联的高温、高压、以及高速度令人希望的耐受性。
在图1中展示了一种热喷涂遮蔽胶带100的一种示例性实施方案。该热喷涂遮蔽胶带包括一种衬底102,该衬底102具有一个第一主要表面104和一个第二主要表面106。布置在该衬底102的第一主要表面104上的是一个表面层108。在一个实施方案中,可以将一个粘合剂层110布置在该衬底102的第二主要表面106上。该热喷涂遮蔽胶带100可以包括一个中间层(未示出),将该中间层布置在该衬底102与该表面层108之间。在一个实施方案中,该热喷涂遮蔽胶带100可以包括一个中间层(未示出),将该中间层布置在该衬底102与该粘合剂层110之间。此外,该热喷涂遮蔽胶带100可以包括一种柔性接触涂覆粘合剂层112,该柔性接触涂覆粘合剂层112覆盖在该表面层108上面。在一个实施方案中,该热喷涂遮蔽胶带100可以包括一个中间层(未示出),将该中间层布置在该表面层108与该柔性接触涂覆粘合剂层112之间。
该热喷涂遮蔽胶带的衬底102可以是柔韧的并且可以由不同的材料制成。一种示例性的柔韧的衬底包括一种有机的或无机的材料。衬底可以是纺织的或非纺织的高温材料(即可以经受大于约300℉温度的材料)。示例性的衬底包括这些材料,如有机硅、聚氨酯、丙烯酸类树脂、芳族聚酰胺、聚酰胺;包括玻璃纤维、陶瓷纤维、碳纤维、以及硅酸盐纤维的布;它们的任何组合或它们的任何处理过的型式。在一个实施方案中,该布是纺织的。在一个实施方案中,该布是非纺织的,如毡。在特别的例子中,可以将该衬底进行处理以改进磨损耐受性、附着迁移、层结合、或类似性质。可以使用任何适合的处理、底漆、或涂料来改进该衬底用于热喷涂遮蔽胶带的应用。例如、该衬底材料可以包括一种环氧树脂涂层、有机硅阻挡层涂层、或类似物。
典型地,该衬底102具有不大于约10密耳的厚度,如大约1密耳至大约10密耳。例如,该衬底102可能具有大约2密耳至大约4密耳的厚度。
在一个示例性实施方案中,该表面层108是由具有希望的弹性体特性的材料形成。例如,该材料是一种弹性体(即一种弹性体化合物),该弹性体具有一种硬度计(邵氏A型)大约20至大约90的硬度,如大约30至大约80、或甚至大约40至大约70。此外,该弹性体可能具有大约0.030磅/立方英寸至大约0.300磅/立方英寸的密度,如大约0.035磅/立方英寸至大约0.150磅/立方英寸、或甚至大约0.040磅/立方英寸至大约0.050磅/立方英寸。在一个实施方案中,该弹性体具有大于约250%的伸长度,如大于约300%。在一个实施方案中,该弹性体可以具有大于约25,000的数均分子量(Mn),如大于约75,000、或甚至大于约100,000。
在一个实施方案中,该弹性体具有如通过ASTM D412所测量的高拉伸强度。在一个示例性实施方案中,该弹性体具有大于约600磅/平方英寸的极限拉伸强度,如大于约650磅/平方英寸、如大于约700磅/平方英寸、如大于约750磅/平方英寸、或甚至大于约800磅/平方英寸。在一个实施方案中,该弹性体具有如通过ASTM D412所测量的低拉伸变形。
在一个示例性实施方案中,该弹性体具有小于约50%的拉伸变形,如小于约40%、如小于约30%、如小于约20%、如小于约15%、如小于约10%、如小于约5%、或甚至小于约2%。在一个实施方案中,该弹性体具有高拉伸强度与低拉伸变形二者的组合。例如,该弹性体可以具有大于约600磅/平方英寸的拉伸强度以及小于约50%的拉伸变形。在一个实施方案中,该弹性体可以具有大于约650磅/平方英寸的拉伸强度以及小于约20%的拉伸变形。在一个实施方案中,该弹性体可以具有大于约800磅/平方英寸的拉伸强度以及小于约10%的拉伸变形。
在一个实施方案中,具有令人希望的弹性体特性的材料是一种可交联的弹性体聚合物。在一个实施方案中,该弹性体可以包含添加剂,这些添加剂包括但是不限于:填充剂、润滑剂、稳定剂、交联剂、促进剂、粘附助剂、助分散剂、抑制剂、着色剂、颜料、它们的任何组合、以及类似物。例如,可以使用一种阻燃填充剂,如陶瓷粉末、金属、玻璃、金属氧化物、无定形硅石、或它们的组合。
在一个实例中,该表面层108可以包括一种硅橡胶。该硅橡胶可以包括一种催化剂以及其他的任选的添加剂。在一个实例中,该有机硅配制品可以是高稠度树胶橡胶(HCR)。在一个实施方案中,该高稠度树胶橡胶可以被过氧化物催化。
在一个实施方案中,该表面层108的材料被压延到该衬底102上。在一个实施方案中,该表面层108的材料可以是完全固化的部分固化的。例如,使所生成的复合材料暴露于热、压力、或它们的一种组合持续一段足够时间以交联或固化该表面层108。适合用于交联该表面层108的其他方法可以包括辐射,如使用x射线辐射、γ辐射、紫外线电磁辐射、可见光辐射、电子束(电子-束)辐射、或它们的任何组合。典型地,热固化发生在大于约150℃的温度下。在交联期间可以应用的典型的压力是在大约0psi至约50,000psi的范围内,如约100psi至约30,000psi、或甚至约200psi至到约10,000psi。在一个实施方案中,在交联期间所施加的压力可以是大于约150psi,如大于约500psi、如大于约1000psi、如大于约5,000psi、或甚至大于约8,000psi。紫外线(UV)辐射可以包括在一种波长下或在从170nm至400nm的范围内(如在170nm至220nm的范围内)的多种波长下的辐射。在一个示例性实施方案中,该表面层108可以通过热/压力方法而被固化。
典型地,该表面层108具有约0.5密耳至约200密耳的厚度,如大约5密耳至大约100密耳、或甚至大约10密耳至大约30密耳。在一个具体实施方案中,该表面层108被直接结合到该衬底102上并且直接与之接触。例如,可以将该表面层108直接结合到该衬底102上并且直接与之接触,而没有任何插入单层或多层。在一个实施方案中,可以将一个可任选的中间层(未示出)布置在该表面层108与该衬底102之间。
该热喷涂遮蔽胶带100还可以可任选地包括一种粘合剂层110,该粘合剂层110覆盖在该衬底102的第二主要表面106上面。在一个实施方案中,可以将该粘合剂层110直接布置在该衬底102的第二主要表面106上,并且直接与之接触,而没有任何插入层或结系层。在一个实施方案中,可以将该可任选的中间层布置在该粘合剂层110与该衬底102之间。该粘合剂层110是任何适合的材料,该材料可以经受该HVOF等离子体工艺连同附着到它直接接触的层上。在一个实施方案中,该粘合剂层110包括一种聚合物组分。该聚合物组分可以包括一种单体分子、一种低聚物分子、一种聚合物分子、或其一种组合。该聚合物组分可以形成热塑性塑料或热固性材料。示例性的聚合物包括有机硅、丙烯酸类树脂、橡胶、尿烷、以及类似物。在一个示例性实施方案中,该粘合剂层110是一个压敏粘合剂。例如,该压敏粘合剂可以是一个基于有机硅聚合物的粘合剂。在一个实施方案中,该粘合剂层110是由一个过氧化物固化的有机硅压敏粘合剂(PSA)形成的。在一个实施方案中,该有机硅压敏粘合剂包括高分子量的直链的有机硅聚合物以及一种高度缩合的硅酸盐增粘树脂,如MQ树脂。示例性的有机硅PSA包括聚二甲基硅氧烷(PDMS)聚合物、聚二苯基硅氧烷(PDPS)聚合物、以及聚二甲基二苯基硅氧烷(PDMDPS)聚合物,它们在聚合物链末端具有硅羟基或乙烯基官能团。在一个示例性实施方案中,该粘合剂层110是一个高温甲基苯基有机硅粘合剂。在又另一个实施方案中,可以使用两个或多个有机硅压敏粘合剂的共混物。
该粘合剂层110可以可任选地包括至少一个不可燃的添加剂,它们可以是陶瓷粉末、金属、玻璃、金属氧化物、无定形硅石、或它们的组合。考虑的耐火添加剂的实例是氧化亚铁、氧化钛、氮化硼、氧化锆、硅酸钠、硅酸镁、以及类似物。
在一个实例中,该粘合剂层110可以通过一种能源来固化。该能源的选择部分取决于这些配制品的化学性质。所使用的能量的量取决于这些前体聚合物组分中反应基团的化学性质、并且取决于该粘合剂层的厚度以及密度。固化参数(如暴露)总体上是配制品依赖的并且可以进行调节。固化的适合的形式包括例如热固化、压力、或辐射,如使用X射线辐射、γ辐射、紫外线电磁辐射、可见光辐射、电子束(电子-束)辐射、或它们的任何组合。
典型地,该粘合剂层110具有小于约15密耳的厚度,如约0.5密耳至约10密耳,如约1密耳至约5密耳、或甚至约2密耳至约3密耳。在一个具体实施方案中,将该粘合剂层110直接结合到该衬底102上并且直接与之接触。例如,可以将该粘合剂层110直接结合到该衬底102上并且直接与之接触,而没有任何插入层。
在一个实施方案中,该热喷涂遮蔽胶带100可以包括该可任选的中间层(未示出)。在一个实施方案中,可以将该中间层布置在该衬底102与该表面层108之间、该衬底102与该粘合剂层110之间、该表面层108与该柔性接触涂覆粘合剂层112之间、或其任何组合。一个示例性的中间层可以包括任何材料,该材料提高了该热喷涂遮蔽胶带100的机械性质。在一个实施方案中,该中间层是一个材料,该材料提高了该热喷涂遮蔽胶带的耐火性。该中间层可以是一种有机的或无机的材料。可以使用任何适合的有机的或无机的材料,该材料可以经受高于约100℉的温度,如大于约200℉、或甚至大于约300℉。例如,该中间层可以包括一种金属箔,如铝、铜、钢、以及类似物;KEVLAR基于陶瓷的板材;基于玻璃的板材;一种有机硅弹性体;羊毛纸;碳纸;高分子材料,如聚酯薄膜、聚酰亚胺薄膜、聚酰胺纸、聚酰胺毡、等。示例性的材料包括压敏粘合剂(PSA),如一种高度交联的有机硅粘合剂、一种基于尿烷的粘合剂或涂料、一种甲硅烷基化的聚氨酯粘合剂、一种LSR(液体有机硅弹性体)、一种基于环氧树脂粘合剂或涂料、丙烯酸类树脂、以及它们的组合。该热喷涂遮蔽胶带可以包括至少一个中间层,如相同或不同的材料的多个中间层。在一个具体实施方案中,该热喷涂遮蔽胶带可以包括两个中间层,这两个中间层包括两种不同的材料。例如,该中间层可以包括一个有机硅弹性体的层以及一个压敏粘合剂的层。典型地,该可任选的中间层具有不大于约20密耳的厚度,如约0.5密耳至约20密耳。
在一个示例性实施方案中,该中间层提高了阻挡层性能。阻挡层性能包括,例如,对于有机硅迁移、过氧化物迁移、过氧化物分解产物迁移、气体迁移、水分迁移、或它们的任何组合的阻挡性质。以上组分的迁移可以对胶带性能(即,如随着时间的过去衬底、粘合剂、和/或柔性接触涂覆粘合剂的性能和/或中间层的附着性能),组分性能(该组分是该胶带所施用的目标),或它们的组合产生不利影响。
在一个实施方案中,该柔性接触涂覆粘合剂层112可以任选地被包括在该热喷涂遮蔽胶带内。例如,可以将该柔性接触涂覆粘合剂层112布置在该表面层108上面。在一个实施方案中,可以将该柔性接触涂覆粘合剂层112直接结合到该表面层108上并且直接与之接触,而没有任何插入单层或多层。在一个实施方案中,可以将该任选的中间层布置在该柔性接触涂覆粘合剂层112与该表面层108之间。该柔性接触涂覆粘合剂层112可以从用于粘合剂层110所描述的任何适合的材料来形成。此外,该柔性接触涂覆粘合剂层112可以具有小于约15密耳的厚度,如约0.5密耳至约10密耳,如约1密耳至约5密耳、或甚至约2密耳至约3密耳。
在一个实例中,该柔性接触涂覆粘合剂层112可以通过一种能源来固化。该能源的选择部分取决于该柔性接触涂覆粘合剂层112的配制品的化学性质。所使用的能量的量取决于这些前体聚合物组分中反应基团的化学性质、并且取决于该配制品的厚度以及密度。固化参数(如暴露)总体上是配制品依赖的并且可以进行调节。固化的适合的形式包括例如热固化、压力、或辐射,如使用X射线辐射、γ辐射、紫外线电磁辐射、可见光辐射、电子束(电子-束)辐射、或它们的任何组合。
在一个实施方案中,一个或多个隔离衬垫(未示出)可以任选地被包括在该热喷涂遮蔽胶带100内。例如,可以将该隔离衬垫放在任何粘合剂层上面,该粘合剂层被包括在该热喷涂遮蔽胶带内。在一个实施方案中,该隔离衬垫可以放在粘合剂层110上面。可以使用任何适合的材料、尺寸、或形式,它们能够使该隔离衬垫容易地并且手动地取出而不改变该粘合层110的物理学特性或功能特性。例如,它可以是一种覆盖粘合剂层110的薄层网。可替代地,它可以是波纹的或压花的薄膜,如聚烯烃或PVC。它还可以是一种用一种氟硅橡胶涂覆的隔离层(该隔离层不结合到粘合剂层110上)涂覆的光滑的塑料膜或纸。类似地考虑了具有类似特性的其他隔离衬垫。类似地考虑了将该隔离衬垫覆盖在一种粘合剂层上面的任何适合的方法。
包括在该热喷涂遮蔽胶带中的这些层的任何一个可以包括任何适合的添加剂、填充剂、或类似物以调节密度、颜色、韧性、耐热性、紫外线耐受性、臭氧耐受性、粘性、耐磨性、或类似性质。此外,可以想象任何数目的层。
显示了形成一种研磨剂物品的一种示例性的、非限制性的实施方案并且在嵌段200处开始。在嵌段200处提供了一种衬底,该衬底具有一个第一以及第二主要表面。如在嵌段202中可见,将该表面层覆盖到该衬底上面。可以通过将该表面层压延、挤出、涂覆、或注入成型实现该表面层的覆盖。在一个示例性实施方案中,将该表面层压延到该衬底上。如在嵌段204中可见,可以将该表面层进行交联(固化)。可以经由应用一种适当能源来进行交联。一种示例性的实施方案经由鼓式硫化压机使用热能和压力。在一个实施方案中,可以在将该表面层覆盖到该衬底上面之前对该衬底进行处理。处理可以包括用于改进该衬底特性(如抗磨损耐受性、附着迁移、层结合、或类似性质)的任何适合的底漆、处理、或涂层。在一种实施方案中,可以在覆盖该表面层之前将一种任选的中间层布置在该衬底上。可以想象布置该中间层的任何方法,这取决于用作该中间层的材料。例如,可以将该中间层进行涂覆或层压。例如,可以在覆盖该表面层之前将该中间层提供在该衬底的第一主要表面上。
如在嵌段206中可见,可以用一种粘合剂层涂覆该衬底的该第二主要表面。涂层取决于该粘合剂层的材料并且可以包括挤出涂层、乳液涂层、或溶液涂层。在一个实施方案中,可以在用该粘合剂层涂覆该衬底之前将该衬底进行处理。处理可以包括用于改进在该衬底与该粘合剂层之间的附着力的任何适当的底漆、处理、或涂层。如在嵌段208处可见,可以经由任何适合的能源将该粘合剂层固化。该能源的选择部分取决于该配制品的化学性质。在一个实施方案中,可以在提供覆盖在该衬底的第二主要表面上面的粘合剂层之前,将该任选的中间层提供在该衬底的第二主要表面上。
一旦将该粘合剂层固化,就形成一种热喷涂遮蔽胶带。作为替代方案,可以将该任选的柔性接触涂覆粘合剂层施加到该表面层上。可以在施加该柔性接触涂覆粘合剂层之前将一种任选的中间层施加到该表面层上。在一个实施方案中,可以将一个或多个隔离衬垫置于该粘合剂层和/或该任选的柔性接触涂覆粘合剂层上。在一个实施方案中,可以将该热喷涂遮蔽胶带进行后续固化。该方法可以在状态210处终止。
可以将该热喷涂遮蔽胶带形成一种带、带状物、或胶带。在一个具体实施方案中,该热喷涂遮蔽胶带是处于一种具有长度、宽度、以及厚度尺寸的胶带或带状物的形式。该长度与宽度尺寸的比率是至少约10∶1,如至少约20∶1、或甚至约100∶1。
用于喷涂一种物品的一种示例性的方法可以见于图3中并且在嵌段300处开始。在嵌段300处,该喷涂一种物品的方法包括将该热喷涂遮蔽胶带的一部分置于一种物品上。典型地,在嵌段302处,将该物品进行喷涂。在一个实施方案中,用一种高速度、高温以及高压的等离子体喷涂工艺(如HVOF)喷涂该物品。在嵌段304处,可以将该热喷涂遮蔽胶带从该物品除去。该方法可以在状态306处终止。
在一个示例性实施方案中,该热喷涂遮蔽胶带在该HVOF工艺期间有利地提供了对层离以及降解提高的耐受性。根据以下实例1的方法,通过热喷涂测试确定提高的抗性。例如,在涂覆10遍以后该热喷涂遮蔽胶带不会失败、一旦去除不会层离、并且不会粘到该钢板试样上。在一种示例性的实施方案中,该热喷涂遮蔽胶带在该掩蔽区域与该喷涂区域的界面处提供一种脆的界限以及轮廓,即在该胶带去除以后该涂层线条的锐度是好的。
实例1
制备一种物品用于性能研究。确切地,将一种有机硅高稠度树胶橡胶化合物(具有大于约75,000的数均分子量)以厚度大约18至20密耳压延到一种衬底的一个第一表面上并且使用一种鼓式硫化压机在大约150℃的温度下以及大约600psi的压力下进行热固化。该衬底是一种2密耳玻璃纤维处理过的布(在该衬底的第二表面上具有大约1至4密耳厚的一种有机硅压敏粘合剂涂层)。
将该物品对于模拟的HVOF试验进行测试。该HVOF系统是一种Sulzer DJ系统(其中一个DJ9W机器装备混合水冷却焊炬)。该涂层材料是具有13微米以及2至27微米的范围的平均粒度的Sulzer73SF-NS WCCo。该试样是一种2英寸x 6英寸13GA(0.090英寸)冷轧钢、用#24氧化铝进行喷砂处理(其中胶带尺寸为2英寸x 4英寸)。将一种热电偶置于该胶带之下以获得粘合剂温度,将一个热电偶置于该试样的中间、并且将一个安排为从背侧穿过该试样和胶带。
将该涂层以每次喷涂8秒的时间喷涂10次(总时间80秒并且位于距离该样品9英寸的距离)。该涂层的厚度大约是4密耳。在60psi下进行空气刀冷却。该自动机速度是750mm/秒(其中颗粒温度为大约1900℃并且颗粒速度为大约570米/秒)。可以在图4中看到结果。将该胶带置于不锈钢面板上并且与所有其他内部的以及竟争的胶带样品相比具有更优异的性能。
实例2
制备一种热喷涂遮蔽胶带用于一种中试生产运行。该热喷涂遮蔽胶带的组合物与实例1的胶带相同,但具有一种玻璃布衬底(具有大约3.7密耳的厚度)。试验结果可见于表1中。
表1
胶带 | 表面层 | |
总厚度(1) | 0.022英寸 | N/a |
拉伸强度(2) | 2190psi | 982psi |
拉伸伸长率(2) | 3.40% | 615% |
硬度计 | N/a | 48(邵氏A型) |
压力(20%偏差) | N/a | 103lbs |
压缩恢复(20%偏差) | N/a | 95% |
压力(10%偏差) | N/a | 55lbs |
压缩恢复(10%偏差) | N/a | 100% |
密度 | N/a | 1.248g/cc |
(1)手提式外径卡规(具有粘合剂)
(2)在施加该粘合剂之前,在胶带上测试ASTM D638 Type II Dumbell、20英寸/分钟、2英寸颚分离
(3)使用一种引状探针在该最终的胶带上的进行Gardner测试仪测试
实例3
制备两个热喷涂遮蔽胶带用于力学测试。该第一热喷涂遮蔽胶带(1)与实例1的胶带相同,但将一种柔性接触涂覆粘合剂层覆盖在该高稠度树胶橡胶(HCR)表面层上面并且将一个甲硅烷基化的聚氨酯粘合剂中间层置于该衬底的第二表面与该有机硅压敏粘合剂涂层之间。该第二热喷涂遮蔽胶带(2)与这个实例的第一热喷涂遮蔽胶带相同,其中将一个有机硅弹性体中间层置于该衬底的第一表面与该高稠度树胶橡胶(HCR)表面层之间、并且将一个高度交联的有机硅粘合剂置于该玻璃纤维衬底与该外面的压敏粘合剂层之间。使用ASTM D1000测试对钢的剥离粘着力。测试结果可见于表2中。
表2
关于对钢的剥离粘着力所测试的两个热喷涂遮蔽胶带都具有所希望的百分比变化。在一周老化试验后没有大于约30%的剥离粘着力损失(即至少约70%剥离粘着力保留)是令人希望的。具体地,在120℉下一周加热老化后在剥离粘着力方面没有大于约5%至约10%的改变。
以上披露的主题应当被认为是说明性的、而非限制性的,并且所附权利要求是旨在涵盖落在本发明的真正范围内的所有此类变更、增强以及其他实施方案。
Claims (25)
1.一种热喷涂遮蔽胶带,该热喷涂遮蔽胶带包括:
一种衬底,该衬底具有一个第一主要表面以及一个第二主要表面;以及
一个表面层,该表面层覆盖在该衬底的第一主要表面上面,该表面层由一种弹性体形成,该弹性体具有大于约600磅/平方英寸的极限拉伸强度。
2.如权利要求1所述的热喷涂遮蔽胶带,其中该弹性体具有邵氏A型硬度计大约20至大约90的硬度。
3.如权利要求1至2中任何一项所述的热喷涂遮蔽胶带,其中该弹性体具有大于约25,000的数均分子量(Mn)。
4.如权利要求1至3中任何一项所述的热喷涂遮蔽胶带,其中该弹性体是交联的。
5.如权利要求1至4中任何一项所述的热喷涂遮蔽胶带,其中该弹性体是硅橡胶。
6.如权利要求5所述的热喷涂遮蔽胶带,其中该硅橡胶是高稠度树胶橡胶(HCR)。
7.如权利要求1至6中任何一项所述的热喷涂遮蔽胶带,其中该衬底是一种高温的织物。
8.如权利要求1至7中任何一项所述的热喷涂遮蔽胶带,进一步包括一种粘合剂层,该粘合剂层覆盖在该衬底的第二主要表面上面。
9.如权利要求8所述的热喷涂遮蔽胶带,其中该粘合剂层是由一种硅氧烷聚合物、丙烯酸类树脂、橡胶、尿烷、压敏粘合剂、或其组合形成。
10.如权利要求8所述的热喷涂遮蔽胶带,进一步包括一种柔性接触涂覆粘合剂层,该柔性接触涂覆粘合剂层覆盖在该表面层上面。
11.如权利要求10所述的热喷涂遮蔽胶带,其中该柔性接触涂覆粘合剂层是由一种硅氧烷聚合物、丙烯酸类树脂、橡胶、尿烷、压敏粘合剂、或其组合形成。
12.如权利要求10所述的热喷涂遮蔽胶带,进一步包括至少一个中间层,该中间层被布置于该衬底与该表面层之间、该衬底与该粘合剂层之间、该表面层与该柔性接触涂覆粘合剂层之间,或其任何组合。
13.如权利要求12所述的热喷涂遮蔽胶带,其中该至少一个中间层是由一种金属、Kevlar、一种陶瓷、一种玻璃、一种有机硅弹性体、一种压敏粘合剂、或其组合形成。
14.如权利要求1至13中任何一项所述的热喷涂遮蔽胶带,该胶带在该HVOF工艺期间具有对高温、高压、以及高速度的耐受性。
15.形成一种热喷涂遮蔽胶带的一种方法,该方法包括:
提供了一种衬底,该衬底具有第一主要表面以及一个第二主要表面;以及
将一个表面层覆盖在该衬底的第一主要表面上面,其中该表面层是由一种交联的弹性体形成,该交联的弹性体具有大于约600磅/平方英寸的极限拉伸强度。
16.如权利要求15所述的方法,进一步包括在覆盖该表面层之前对该衬底进行处理。
17.如权利要求15至16中任一项所述的方法,其中该弹性体是硅橡胶。
18.如权利要求17所述的方法,其中该硅橡胶是高稠度树胶橡胶(HCR)。
19.如权利要求15至18中任何一项所述的方法,进一步包括固化该表面层。
20.如权利要求15至19中任何一项所述的方法,进一步包括将一种粘合剂层涂覆到该衬底的第二主要表面上。
21.如权利要求20所述的方法,进一步包括固化该粘合剂层。
22.如权利要求15至21中任何一项所述的方法,进一步包括在涂覆该表层之前提供一种中间层以便覆盖到该衬底的第一主要表面上面。
23.如权利要求20所述的方法,进一步包括在涂覆该粘合剂层之前提供一种中间层以便覆盖到该衬底的第二主要表面上面。
24.如权利要求15至23中任何一项所述的方法,进一步包括将一种柔性接触涂覆粘合剂层涂覆在该表面层上。
25.如权利要求24所述的方法结构,进一步包括在涂覆该柔性接触涂覆粘合剂层之前提供一种中间层以便覆盖到该表面层上面。
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JP2011530006A (ja) | 2011-12-15 |
CA2733421C (en) | 2013-06-11 |
EP2331722A4 (en) | 2013-07-31 |
CA2733421A1 (en) | 2010-02-11 |
JP5730764B2 (ja) | 2015-06-10 |
US20100035501A1 (en) | 2010-02-11 |
WO2010017380A3 (en) | 2010-05-14 |
CN104861890A (zh) | 2015-08-26 |
EP2331722A2 (en) | 2011-06-15 |
WO2010017380A2 (en) | 2010-02-11 |
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