CN1197663C - 具有改进抗刮性的防粘性涂层 - Google Patents

具有改进抗刮性的防粘性涂层 Download PDF

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CN1197663C
CN1197663C CNB008046891A CN00804689A CN1197663C CN 1197663 C CN1197663 C CN 1197663C CN B008046891 A CNB008046891 A CN B008046891A CN 00804689 A CN00804689 A CN 00804689A CN 1197663 C CN1197663 C CN 1197663C
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J－P·布法德
M·方丹
C·加达兹
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/06—Lids or covers for cooking-vessels
    • A47J36/12—Devices for holding lids in open position on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12556—Organic component
    • Y10T428/12569—Synthetic resin

Abstract

具有改进抗刮性的防粘性涂层，它包括施涂到基材上的、涂有包括氟碳树脂的底涂层的内涂层和一层或多层氟碳树脂型外涂层，其特征在于该内涂层只由已知为PEEK的氧化-1，4-亚苯基-氧化-1，4-亚苯基-羰基-1，4-亚苯基聚合物构成。

Description

具有改进抗刮性的防粘性涂层
本发明涉及具有改进的抗刮性的防粘性涂层。
被涂敷到炊具上的防粘性涂层是已知的。这类涂层容易被刮伤。
这类涂层常常施涂于矾土、珐琅、不锈钢或聚酰胺-酰亚胺(PAI)的硬内涂层上以改进它们的抗刮性。
原则上，内涂层形成了阻隔层，防止划痕深入到基材表面。
本发明旨在提供一种其抗刮性与已知涂层相比得到改进的同时保持了优异的防粘性能的防粘性涂层。
本发明提供具有改进的抗刮性的防粘性涂层，它包括施涂到基材上的、涂有包括氟碳树脂的底涂层的内涂层和一层或多层氟碳树脂型外涂层。
本发明的防粘性涂层的特征在于所述内涂层主要由氧化-1，4-亚苯基-氧化-1，4-亚苯基-羰基-1，4-亚苯基聚合物(已知为PEEK，聚醚醚酮)组成。
这一聚合物的结构式是：
Figure C0080468900031
PEEK已经与氟碳树脂例如聚四氟乙烯(PTFE)混合用于防粘性涂料配方中。
然而，PEEK从来没有与氟碳树脂混合使用来构成硬的内涂层。
现已令人惊讶地确认，施涂于PEEK型内涂层上的防粘性涂层显示出改进的抗刮性。
因此，防粘性涂料可借助金属刮铲使用。
已经确认该PEEK内涂层覆盖了该基材的总涂层表面的60％-95％。
这一内涂层是不连续的和形成了非常致密的网络，留下了5％到40％的表面没有被覆盖。与这一网络的构型有关的聚醚醚酮的机械特性可以除去因使用金属如金属刮铲所形成的划痕。
这代表一种理想的折衷方案，可以同时改进铝的硬度和聚四氟乙烯的弹性。
应当指出的是，该网络在粗糙表面上能够变成连续的，或它覆盖低于60％的表面，但对本发明没有任何影响。
取决于具体情况，该内涂层的厚度能够在5至100微米(μm)之间变化。
用于底涂层和用于外涂层中的氟碳树脂优选是聚四氟乙烯(PTFE)或PTFE/PFA混合物。
本发明尤其涉及在外部或内部涂有防粘性涂层的炊具，该防粘性涂层被涂敷在由100wt％PEEK构成的内涂层上。
这些器具的基材能够是铝、涂有珐琅或无珐琅的钢、玻璃、陶器或珐琅。该支持体能够是光滑的或能够通过机械或化学处理被粗糙化。
在施涂PEEK型内涂层之前，该基材可以进行或不进行例如通过酸侵蚀完成的化学处理或它可以进行或不进行例如通过喷砂处理实施的机械处理。
该PEEK内涂料，以粉末或分散体形式，能够在环境温度下施涂于基材上或被加热至大约450℃。
它还能够以浆料形态通过丝网印刷或凹版移印法被施涂，在这种情况下所施涂的内涂层具有以下组成：
PEEK      30-400 重量份
增稠剂    1-10
稀释剂    10-450
水        100-300
在固化过程中除PEEK以外的其它成分消失，使得在固化后内涂层仅仅由PEEK构成。
所使用的PEEK粉末的粒度能够为4微米(μm)-80μm，其平均粒度为大约20μm。
取决于施涂模式，有必要将内涂层加热至至少340℃的温度。然后，依次将PTFE型底涂层和外涂层施涂于内涂层上，涂层组合体然后在400-420℃下固化。
以下作为实施例给出在PEEK内涂层上依次被施涂的涂层的组成。
                       底涂层
    组分     重量份
聚酰胺-酰亚胺的水分散体，大约13％干提出物     100-500
N-甲基吡咯烷酮     100
PTFE分散体，60％干提出物     100-400
水     100
炭黑，20％干提出物     20-30
胶态硅石，30％干提出物     10-200
                    中间外涂层
PTFE分散体，60％干提出物 80-90
PFA 6900分散体，50％干提出物 0.5-5.0
分布和成膜剂 1-20
TiO2涂敷的云母薄片 0.1-0.4
Derusol，“炭黑，25％干提取物” 0.02-0.6
                 表面的外涂层
PTFE分散体，60％干提出物 80-90
分布和成膜剂 1-20
TiO2涂敷的云母薄片 0.1-0.4
在干燥之后，上述涂层组合体在400-420℃下烧结5-10分钟。
获得具有改进性能的防粘性涂层。
根据法国标准NF 21-511在不同温度下测定的硬度与普通涂层对比得到以下结果：
硬度含有PEEK的PTFE涂层 20℃ 100℃ 180℃
球压试验 3.4kg 3.4kg 1.7-2.0kg
无内涂层的普通涂层 1.8kg 1.7kg 1.6kg
尤其在食物的实际烹调应用中，其呈现出人意料的耐金属刮铲冲击性。在用不同食物进行若干烹调、烧烤和油炸周期(相当于使用2年)之后，涂层表面几乎未被划伤，并且未触及金属。
事实上，这构成了对于除了刀刃以外的金属器皿刮划呈现改进的抗刮性的第一涂层+内涂层体系，因为迄今为止，所有被试验的内涂层均未真正地带来令人满意的解决方法(等离子体，矾土，钛，阳极化，和其它表面处理)。
显然，抗刮性的这一改进能够用于所有应用场合，可被用于炊具和小家用电器的内部和外部：电炉、烧烤板和其它光滑表面例如熨斗。
显然，本发明不限于以上所述的实施例和在不离开本发明范围的前提下能够进行许多改进。

Claims (8)

1.具有改进抗刮性的防粘性涂层，它包括施涂到基材上的、涂有包括氟碳树脂的底涂层的内涂层和一层或多层氟碳树脂型外涂层，其特征在于，在固化之后，该内涂层只由已知为PEEK的氧化-1，4-亚苯基-氧化-l，4-亚苯基-羰基-l，4-亚苯基聚合物构成。
2.根据权利要求1的涂层，其特征在于由PEEK构成的内涂层覆盖了基材的总涂层表面的60％到95％。
3.根据权利要求1或2的涂层，其特征在于内涂层的厚度是5到100μm。
4.根据权利要求1或2的涂层，其特征在于该氟碳树脂是聚四氟乙烯或聚四氟乙烯-全氟烷氧基树脂混合物。
5.涂有权利要求1的涂层的炊具。
6.在基材上施涂权利要求1的涂层的方法，其特征在于包括以下步骤：
·将由PEEK构成的内涂层施涂于基材上；
·将内涂层在至少340℃的温度下熔化；
·在该内涂层上依次施涂PTFE型底涂层和一层或多层外涂层；然后
·在400-420℃下将这些涂层的组合体加以固化。
7.根据权利要求6的方法，其特征在于PEEK是以粒度为4μm-80μm的粉末形式施涂，平均粒度是20μm。
8.根据权利要求3的涂层，其特征在于该氟碳树脂是聚四氟乙烯或聚四氟乙烯-全氟烷氧基树脂混合物。
CNB008046891A 1999-03-16 2000-03-14 具有改进抗刮性的防粘性涂层 Expired - Fee Related CN1197663C (zh)

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MXPA01009313A (es) 2003-07-14
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US6382454B1 (en) 2002-05-07
JP4087069B2 (ja) 2008-05-14
CN1368903A (zh) 2002-09-11
EP1169141B1 (fr) 2004-01-21
HK1045822A1 (en) 2002-12-13
AU3297600A (en) 2000-10-04
DE60007853T2 (de) 2004-12-16
ATE258082T1 (de) 2004-02-15
KR20010105332A (ko) 2001-11-28
WO2000054895A1 (fr) 2000-09-21
DE60007853D1 (de) 2004-02-26
EP1169141A1 (fr) 2002-01-09
BR0008989B1 (pt) 2010-11-16
HK1045822B (zh) 2005-08-12
TR200102517T2 (tr) 2002-05-21
BR0008989A (pt) 2002-01-22

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