CN100594120C - 具有防水毡的管道板 - Google Patents

具有防水毡的管道板 Download PDF

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CN100594120C
CN100594120C CN200480002175A CN200480002175A CN100594120C CN 100594120 C CN100594120 C CN 100594120C CN 200480002175 A CN200480002175 A CN 200480002175A CN 200480002175 A CN200480002175 A CN 200480002175A CN 100594120 C CN100594120 C CN 100594120C
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duct
felt
insulation layer
duct board
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CN1750922A (zh
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J·O·鲁伊德
M·托亚斯
W·E·肖
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0281—Multilayer duct
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/1314—Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/1317—Multilayer [continuous layer]
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
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    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2164—Coating or impregnation specified as water repellent
    • Y10T442/2189—Fluorocarbon containing

Abstract

一种管道板或管道衬里(10)，其包括：由用树脂粘合剂粘结的纤维材料形成的隔绝材料层(12)，粘附在隔绝材料层外表面的外覆面层(18)，和粘附到与外表面相反的隔绝材料层内表面的防水毡覆面(14)，从而形成管道板材料。该毡覆面(14)提供能够抵挡至少大约40%异丙醇和大约60%水的混合物的足够疏水性。该管道板或管道衬里材料(10)形成为能够输导空气的管状，并在管状内部之上具有毡覆面。

Description

具有防水毡的管道板
技术领域
本发明大体上涉及建筑产品，特别是涉及管道板和管道衬里材料以及由此制造获得的管道。
背景技术
管道和导管用于在建筑物供暖，通风以及空调(HVAC)系统内输送空气。在许多应用中，尤其是商业和工业建筑内，管道内衬柔性隔热和隔音材料。该衬里提高管道传输的热效率并且减少空气在其中传输而带来的噪音。管道衬里可以包含任何适宜的有机材料或无机材料，例如，矿物纤维如玻璃纤维隔绝材料等等。典型的玻璃纤维管道衬里，例如是由密度为大约1.5至3磅/立方英尺(pcf)并且厚度为大约0.5至2英寸的玻璃纤维毡构成的。为防止空气流动对纤维的侵蚀，隔绝材料(insulation)可以包括在其内里或″气流″表面上的涂层。隔绝材料的气流表面是指输送空气通过管道的表面，也是与在最终管道组件内管道金属片接触表面的相反表面。涂层也用来在管道内部用刷子清尘和/或真空吸尘时保护隔绝材料。美国专利Nos.3,861,425和4,101,700提供了在内表面具有涂层的管道衬里的例子。几种涂布绝热管道衬里以商标
Figure C20048000217500041
(由CertainTeedCorp.of Valley Forge，PA制造)，
Figure C20048000217500042
和
Figure C20048000217500043
(由Owens CorningFiberglas Corp.of Toledo，OH制造)，
Figure C20048000217500044
和PolycousticTM(由JohnsManville Corp.of Denver，CO制造)市售。
其它绝热HVAC系统使用由刚性管道板或管制造或做内衬的管道。管道板是由树脂粘结的矿物纤维形成的刚性构件并且也可以在其气流表面提供防护涂层。管道板典型地具有大约3至6磅/立方英尺(pcf)的密度和大约0.5至2英寸的厚度。有涂层和无涂层的管道板由上述管道衬里制造商以多种商标在市场销售。如果在管道衬里或管道板上提供专用防水涂层将增加制造这些产品的成本和复杂程度。
众所周知微生物会在存在水分和养分的环境下生长，并且许多种微生物对室内空气品质(IAQ)具有负面影响。如果液态水漏入通风管道的隔绝材料，水可以在隔绝材料内集中和积滞从而帮助微生物的生长。
为解决HVAC系统内微生物生长的问题，美国专利Nos.5,314,719；5,379,806；5,487,412和5,783,268公开在非渗透性管道衬里和/或管道板的空气输送表面上或表面内提供抗微生物剂。然而，这些抗微生物剂具有非常有限的有效区间。也就是说，它们倾向于仅仅在其紧邻区域内防止微生物形成。例如美国专利No.5,314,719描述了大约一毫米的抗真菌抑制区。典型的管道衬里和管道板具有大约1/2到2英寸的隔绝材料厚度。在这些产品中，这种有限的抑制区域在防止由于水通过外壁和管道缝进入而使得管道隔绝材料浸透从而导致微生物形成方面基本上无效。
如果将不透水涂层涂布到通气管道隔绝材料制品的气流表面，它将抑制水进入隔绝材料以及所伴随的微生物在其中的形成。美国专利No.3,861,425论述提供由具有此类涂层的玻璃纤维隔绝材料介质例如絮毡，毡，板等构成或内衬的HVAC管道。虽然某种涂层可以提供纤维侵蚀防护和防潮性益处，但它们也增加了该产品和其制造方法的成本和复杂性。涂布到纤维隔绝材料产品的气流表面的涂层是在这些产品成形之后被涂布到这些产品的。这就要求通过刷，辊，喷涂器或通过其它装置或方法将涂层涂布到预先成形的隔绝材料产品上，接着使涂层固化或干燥。该成形后涂布步骤可能延长制造该绝热产品所需的时间，无论是人工实施或自动实施，并且为保证在涂层涂布中的均匀性必须仔细监控。
至少CertainTeed Corp.和Knauf Fiber Glass GmbH提供的管道衬里或管道板可以作为有涂层的管道衬里和管道板的替代产品，其提供的管道衬里或管道板具有用限定了这些产品气流表面的非织造覆面材料层覆盖的玻璃纤维隔绝材料。该覆面材料提供保护通气管道免于纤维侵蚀的耐久表面。
然而，无涂层的纤维隔绝材料HVAC管道产品和一些覆盖有覆面材料的产品都具有有限的内在防水性。因而，如果它们变得潮湿容易使微生物形成。
发明概述
一种管道板或管道衬里产品，其包括：由用树脂粘结剂粘结的纤维材料形成的隔绝材料层，粘附在隔绝材料层外表面的外覆面层，和粘附到与外表面相反的隔绝材料层内表面从而形成管道板材料的防水毡覆面。该毡覆面提供能够抵挡至少大约40％异丙醇和大约60％水的混合物的足够防水性。
附图简述
图1是按照一个实施方案的管道板材料的横截面视图。
图2是用于形成图1所示材料的隔绝材料层的装置示意图。
图3是将毡覆面涂覆到图1所示管道板材料的装置示意图。
图4是图1所示管道板在其被折叠入通气管道后的立体图。
发明详述
2001年2月20号提交的专利申请No.09/789,063，以及2001年2月20号提交的专利申请No.09/788,760，在此全文引入作为参考。
示范性实施方案的阐述应当与附图结合阅读，附图将被认为是全部文字阐述的一部分。在该阐述中，相对性的术语例如“较低的，”“较高的，”“水平的，”“垂直的，”，“上面，”“下面，”“向上，”“向下，”“顶部”和“底部”及它们的派生词(例如，“水平地”“向下地，”“向上地”等等)应该参照所讨论中的附图内所描述或显示的方向解释。这些相对性的术语仅仅是为了描述的方便，而并不要求以特定的方向来构造或操作装置。涉及附着，连接等的术语，例如″连接的″和″互连的，″，意指这样一种关系，其中构件直接或间接通过插入构件而彼此固定或附着，以及可拆卸地或刚性地附着或关联，除非有另外的特意描述。
图1是管道板或管道衬里材料10的一部分的剖视图。管道板或管道衬里10包括由用树脂粘结剂粘结的纤维材料形成的隔绝材料层12，13，粘附到外隔绝材料层部分13的外表面的外覆面层18，和粘附到内部隔绝材料层部分12的内表面并与外表面18相对从而形成管道板或管道衬里材料的防水毡覆面14。毡覆面14提供足够的疏水性，使用IST 80.6-92测试方法其能够持续抵挡包含大约40％异丙醇和大约60％水的液滴至少五分钟。该毡覆面14可以任选地提供能够抵挡包含大于40％异丙醇的混合物的足够防水性。该管道板或管道衬里材料10形成能够输导空气的管状，并在其内部具有毡覆面14。图4显示由管道板10形成的示例性通气管道。管道衬里具有类似外形，但是具有适于放置于管道内部的较低密度。尽管显示的是矩形管道，如本领域公知管道也可以成形为非矩形管状。
毡覆面14可以由织造或非织造纤维材料形成。该材料可以具有固有的防水性，或者可以用例如包括如硅酮或碳氟化合物的防水材料处理，从而例如提供所需的防水性。
优选的毡材料14具有足够的防水性，使用IST 80.6-92测试方法其能够持续抵挡包含至少80％异丙醇和大约20％水的液滴至少五分钟。可以使用在IST80.6-92测试中抵挡最高达100％异丙醇的材料。在一些优选实施方案中，毡14由Lydall Inc.of GreenIsland，NY制造的防水40# Manniglass 1886 Black毡或1786Black毡，或Johns Manville of Denver，CO制造的防水3220B毡形成。
在其它实施方案中，毡14由丙烯酸基粘结剂内的长丝玻璃纤维形成，例如用防水涂层(例如硅酮或碳氟化合物)在其上涂布的Johns Manville
Figure C20048000217500072
8440。
提供了类似或更好的防水程度的其它毡材料可以替代使用。例如，这种材料可以包括非织造毡，该非织造毡是这样形成的：在湿法成网工艺(wet-laidprocess)中将玻璃纤维无规散布成网，然后粘结在丙烯酸或其他树脂体系内，接着用提供所需防水程度的碳氟化合物基涂层后处理。
产品10包括由适宜的树脂粘结的矿物纤维隔绝材料层12，13，矿物纤维例如玻璃纤维，耐火纤维或矿物棉纤维，和用粘合剂16粘附在其上的毡覆面14，其中覆面材料14限定板或管的气流表面。可以用来粘结隔绝材料层12，13的纤维的粘结剂可以包括但并不局限于美国专利Nos.5,300,562和5,473,012公开的苯酚粘结剂，其公开的内容在此一并引入作为参考。产品10可以具有大约0.5至6磅/立方英尺(pcf)的密度和大约1.27至5.08厘米的厚度(0.5至2英寸)。隔绝材料层12，13的厚度和密度是由产品为管道板或者为管道衬里来确定的，并且也受所需要的或对特定建筑安装所必需的隔音和/或绝热水平影响。本领域普通技术人员应当认识到也可以使用其它已知的管道衬里制造工艺。
尽管图1所示的管道板材料具有凹入搭叠边缘和外覆面层18的一片在其上外伸的凸出搭叠边缘，但是可以形成有搭叠边缘或没有搭叠边缘的其它结构。
在一些实施方案中，防水毡覆面14独自提供所需的防水程度。在其它实施方案中，如下所述，产品10的防水性是通过在隔绝材料层12，13中的粘结剂和将覆面14连接到隔绝材料12的粘合剂的任一或两者中加入添加剂而获得提高。
通过参考图1应当理解，隔绝材料层12，13由树脂粘结的纤维的一系列堆集层形成，在最终产品中，树脂粘结的纤维可以缠结并显露和作为连续均质体而不是许多分散的或离散的层或薄片存在。尽管典型的刚性管道板和管包括许多粘结层，但为简化阐述和解释，以后产品10是指包括第一和第二部分12和13。部分12和13之间的虚线位置是任选的。在一些实施方案中，部分12和13是连续并且在相同的组成，因而也可以认为是单一层。在其它实施方案中，如下所述，部分12具有部分13中不含有的添加剂。在一些实施方案中，部分12较厚。在其它一些实施方案中，部分13较厚。
在一些实施方案中，管道板或管的防水性任选地通过在部分12，13至少其中之一的粘结剂中加入疏水性试剂而得以提高。在一个实施例中，疏水性试剂结合入部分12，该部分更加接近产品10的气流表面，并且接近覆面14；部分13的粘合剂之内不具有疏水性试剂。因此，渗透覆面14的来自管道内部的液态水或其它含水液体进一步被抵挡进入产品10，从而减少微生物在隔绝材料内生长的可能性。优选，箔/稀松布/纸层压材料或其他适宜的蒸气阻滞层18被粘附或其它方式固定到与层12的气流表面相反的产品表面，从而防止水分从周围环境进入隔绝材料。
图2显示用于形成隔绝材料层12，13的形成部，其包括任选的部分12的粘结剂内的疏水性试剂。隔绝材料层12和13可以这样在形成部19制造获得，即通过熔体纺丝熔融材料例如玻璃，使用许多纤维化单元22a-22f纺成精细纤维的面网20。纤维面网进入成形罩24，在此将在水性载体中的粘合剂例如酚醛树脂(或水和粘合剂依次)喷射到面网20上。在成形罩24内，纤维累积并集中在链，带或其它常规驱动传送带26上成网。为给予部分12疏水性，至少纤维化单元22f被构造使之能够分配其中具有疏水试剂的粘合剂。在网从形成部19出来后，将其传输到没有图示的用于压缩和固化该网从而使其具有所需厚度和密度的常规固化烘箱。
当在烘箱内时，为固化粘结剂并使部分12，13之间彼此粘附同时加热这两部分，从而形成产品10的均质体。优选，许多层纤维由没有图示的加热板等在足够的压力下结合在一起，从而使部分12和13的大部分纤维彼此压缩在一起。在产品10从固化烘箱离开后，将蒸气迟滞层18涂布到与气流表面相反的层13的表面。
在一些实施方案中，至少在部分12中所用的粘结剂包括有效量的至少一种疏水性试剂例如硅酮，油，碳氟化合物，蜡等，其足以给予产品防水性和抗含适量溶剂的水溶液的特性，而不需考虑气流覆面层14的防水性。取决于所选的疏水性试剂，疏水性试剂的有效量为疏水性试剂与粘结剂的比例为大约1∶200至1∶5。在一个实施方案中，适用于这些目的的市售疏水性试剂是由DowCorning Cornporation of Midland，MI制造的DC 347硅酮乳液。当这种试剂相对于酚醛树脂粘结剂以大约1∶24存在时，显示出优良的防水特性。适合与酚醛树脂一起使用的可替代的疏水性试剂包括由Mobil Oil Corporation of Fairfax，VA市售的油乳液
Figure C20048000217500091
和由Borden Chemical，Inc.of Columbus，OH市售的物料编号为SL849的油。当SL849油相对于酚醛树脂粘结剂以大约1∶16存在时，已经显示出优良的防水特性。
尽管上面描述了一个实施例，其中隔绝材料层的一个部分12包含在其粘结剂内的疏水性试剂，而隔绝材料层的另一个部分13在其粘结剂内不包含疏水性试剂，然而其它实施方案在全部隔绝材料层12，13的粘结剂内包含疏水性试剂。如上所述，如果毡覆面14提供所需的防水性(单独或与防水粘合剂16结合)，那么部分12或13任何之一都不需要疏水性试剂。
一种如上所述的示范性旋转方法对于制造管道板产品是有利的。如果是管道衬里产品，可以使用一种类似的火焰衰减方法。或者，管道衬里产品可以使用织物毡成形方法制造，其中将在连续丝束内的织物纤维切碎为2至5英寸长并由气流成网方法成形为毡或板。可以将疏水性试剂例如硅酮，碳氟化合物或蜡加入到这个方法中所用的粉末粘结剂中。
在一些实施方案中，管道板或管10的防水性由在粘合剂16中加入疏水性试剂而得以提高。因此，在管道内部从覆面14渗透而来的液态水或其他含水液体被抵挡而不能进入隔绝材料层12，13的内部的部分12，从而进一步减少微生物在隔绝材料内生长的可能性。
参见图3，如上所述隔绝材料层12，13可以在成形站19内制造获得，即通过熔体纺丝熔融材料，例如玻璃，纺成精细纤维，接着在纤维上喷射粘结剂，例如水性载体中的酚醛树脂粘结剂，然后在传送带上集中纤维成网。在该网离开成形站后，使该网通过常规固化烘箱或其它装置以将该网固化和压缩到所需厚度。应当提醒的是部分13并没有在图3中显示。基于示范的目的，在隔绝材料层内具有可区分的部分12，13是任选的，而不是必需的。
在一些实施方案中，在隔绝材料内的粘结剂固化之前，覆面层14的连续膜从辊32分配出来并被涂布到隔绝材料层12的一个表面。在将覆面层14粘附到隔绝材料层12之前，将粘合剂16涂布到覆面层14和隔绝材料层12的任何一个或两个上。可以通过可旋转地支撑在槽36或类似容器内的涂布辊34将粘合剂16连续涂布到覆面层14的下面，该槽或类似容器内含有适合于使层12，14在固化后彼此牢固粘附的粘合剂。应当理解可以通过其它方式例如喷涂或刷涂将粘合剂16涂布到层12，14的任何一个或两个上。
在涂布粘合剂时，应当注意使渗透穿过覆面一路直达覆面14的气流表面(内部)并沉积在该表面上的粘合剂16量最小化。在毡14内表面上的粘合剂16可以提供比裸露的覆面14更加可润湿的表面。因而，如果气流表面部分或全部涂有粘合剂16，这可以增加该表面的表面张力以及减少裸露覆面14表面下的防水性。
尽管并不局限于此，然而优选的粘合剂是通常和用于粘结隔绝材料层12内的纤维的粘合剂具有相同或类似组成的酚醛树脂。然而，酚醛树脂粘合剂具有有限的疏水性。
因此，用于将覆面14粘附到隔绝材料层12的粘合剂可以任选地包括有效量的至少一种疏水性试剂例如硅酮，油，碳氟化合物，蜡等，其足以赋予产品基本上不透水和抗含适量溶剂的水溶液的特性，而不需考虑覆面层14的防水性。疏水性试剂的有效量为疏水性试剂与粘合剂的比例为大约1∶20至1∶200，更优选为约1∶40。适用于这些目的的市售疏水性试剂是由Dow CorningCorporation of Midland，MI制造的DC 347硅酮乳液。
层12，14可以以任何所需同步速率移动，并且涂布辊24可以以足够彻底将粘合剂16涂布到移动的覆面层网14上的任意速度旋转。在移动层的速度大约为80英尺/分钟并且涂布辊24的转速为大约3-20rpm时，显示出可以接受的结果。放置装置38例如导辊等可以用来便利层14在层12上的放置。然后将产品10由没有图示的传送带输送到固化烘箱30。当在烘箱内时，为固化该粘结剂和粘合剂16，同时加热层12，14。优选，层12，14由没有图示的加热板等在足够的压力下结合在一起，从而使覆面层14压在隔绝材料层12上。在压缩下加热两层使覆面层14与绝热材料层12牢固地粘结在一起。在隔绝材料板离开固化烘箱后，可以将蒸气迟滞层18(如图1所示)涂布到和覆面层14相反的隔绝材料层12的表面。
实施例
在玻璃纤维隔绝材料板上用苯酚粘结剂构造具有覆面14的样品，覆面14由Johns Manville 3220B和Lydall Manniglass 1886构成。以80和92英尺/分钟的不同传送带线速度(这将影响隔绝材料层12的密度)构造样品。在这些样品中，疏水性试剂并不添加到隔绝材料层12的粘结剂，或添加到粘合剂16中。通过在板的表面上放置水和水/醇溶液的液滴而评价板防水性的结果在表1中显示。也提供了对于市售具有水屏蔽(hydroshicld)技术的EI475管道板的Knauf通风管道板-M(KnaufAir Duct Board M)试验结果用于对比。术语″OK″意味着液滴在指定时间段并不渗透表面。
表1
  板样品   JM3220B@80英尺/分钟   JM3220B@92英尺/分钟  Lydall1886@80英尺/分钟   Lydall1886@92英尺/分钟  KnaufHydroshield
  水(100％)   OK＞1小时   OK＞1小时   OK＞1小时   OK＞1小时   OK15分钟
  10％异丙醇   OK＞1小时   OK＞1小时   OK＞1小时   OK＞1小时   OK15分钟
  20％异丙醇   OK＞1小时   OK＞1小时   OK＞1小时   OK＞1小时   OK15分钟
  30％异丙醇   OK＞1小时   OK＞1小时   OK＞1小时   OK＞1小时   立即浸透(＜1分钟)
  40％异丙醇   OK＞1小时   OK＞1小时   ＜5分钟一些浸透   OK＞15分钟   立即浸透(＜1分钟)
  50％异丙醇   OK＞1小时   OK＞1小时   ＜5分钟一些浸透   ＜15分钟一些浸透   立即浸透(＜1分钟)
在使用JM 3220B以80英尺/分钟的线速度制备的样品上进行扩展试验。将样品放置在流动的自来水下7小时以上，以与水平成大约60度的角度放置，并且水滴下的高度为13.3厘米(5.25英寸)。7小时之后，除了板的底部边缘外没有水渗透，其中从边缘(在样品中，毡并不在底部边缘折叠，由此裸露的隔绝材料直接暴露在流动/滴下的水流)的浸透大约2.5厘米(1英寸)。板的横截面显示直接在水滴下的板部分呈现干燥。
尽管本发明已经针对示范性的实施方案加以描述，但也并非局限于此。更确切的说，所附的权利要求应当更宽地被视为包括本发明的其它变体和实施方案，这些其它的变体和实施方案可以为本领域熟练技术人员在不违背本发明等同的范围内获得。

Claims (10)

1.一种管道板或管道衬里产品(10)，其包括：
由用树脂粘结剂粘结的纤维材料形成的隔绝材料层(12)；
粘附在隔绝材料层外表面上的外覆面层(18)；以及
粘附在与外表面相反的隔绝材料层的内表面上从而形成管道板材料的防水毡覆面(14)，该毡覆面提供足够防水性从而可以抵挡至少含有40％异丙醇和60％水的混合物，其中毡是由用丙烯酸树脂粘结的非织造玻璃纤维形成并在其上具有防水硅酮或碳氟化合物涂层。
2.如权利要求1所述的管道板或管道衬里产品，其中毡覆面(14)提供足够的防水性从而用IST 80.6-92试验方法可以抵挡包含40％异丙醇和60％水的液滴至少持续五分钟。
3.如权利要求1所述的管道板或管道衬里产品，其中毡提供足够的防水性从而使用IST 80.6-92试验方法可以抵挡包含80％异丙醇和20％水的液滴至少持续五分钟。
4.如权利要求1的管道板或管道衬里产品，其中毡是由用丙烯酸树脂粘结的非织造玻璃纤维形成并在其上具有防水碳氟化合物涂层。
5.如权利要求1所述的管道或管道衬里产品，其中：
使用粘合剂将毡粘附在所述的隔绝材料层上，
隔绝材料层包含由在水性载体内的树脂形成的树脂粘结剂，和
粘合剂和树脂粘结剂中的至少一种，其含有选自由硅酮，油，碳氟化合物和蜡中的疏水性试剂。
6.如权利要求1所述的管道板或管道衬里产品，其中：
通过含有第一疏水性试剂的粘合剂将毡粘附到所述隔绝材料层的表面，和
在所述隔绝材料层至少一部分内的树脂粘结剂含有第二疏水性试剂。
7.如权利要求1所述的管道板或管道衬里产品，其中管道板材料成形为能够导通空气的管形状，并在其内部之上具有毡覆面。
8.用于形成如权利要求1所述的管道板或管道衬里产品的方法，其包括如下步骤：
(a)将外覆面层粘附到隔绝材料层的外表面；和
(b)将防水毡覆面粘附到与外表面相反的隔绝材料层的内表面从而形成管道板材料。
9.如权利要求8所述的方法，其中毡是由用丙烯酸树脂粘结的非织造玻璃纤维形成并在其上具有防水碳氟化合物涂层。
10.如权利要求8所述的方法，其中步骤(b)包括使用粘合剂将毡覆面粘附到内表面，粘合剂含有选自于由硅酮，油，碳氟化合物和蜡中的疏水性试剂。
CN200480002175A 2003-01-14 2004-01-14 具有防水毡的管道板 Expired - Fee Related CN100594120C (zh)

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