CN110172280A - 一种热塑性粉末涂料的制备方法 - Google Patents
一种热塑性粉末涂料的制备方法 Download PDFInfo
- Publication number
- CN110172280A CN110172280A CN201910567405.6A CN201910567405A CN110172280A CN 110172280 A CN110172280 A CN 110172280A CN 201910567405 A CN201910567405 A CN 201910567405A CN 110172280 A CN110172280 A CN 110172280A
- Authority
- CN
- China
- Prior art keywords
- preparation
- coating
- water
- dispersion
- organic solvent
- 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.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 38
- 238000000576 coating method Methods 0.000 title claims abstract description 38
- 239000000843 powder Substances 0.000 title claims abstract description 37
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 31
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000003973 paint Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
- 239000006185 dispersion Substances 0.000 claims description 29
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- -1 antiager Substances 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 9
- 239000004094 surface-active agent Substances 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003995 emulsifying agent Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000012760 heat stabilizer Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 239000010881 fly ash Substances 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 235000012222 talc Nutrition 0.000 claims 1
- 238000005292 vacuum distillation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 26
- 230000008569 process Effects 0.000 abstract description 12
- 238000009826 distribution Methods 0.000 abstract description 7
- 238000007590 electrostatic spraying Methods 0.000 abstract description 4
- 238000003618 dip coating Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 10
- 229920000915 polyvinyl chloride Polymers 0.000 description 9
- 239000004800 polyvinyl chloride Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 239000000049 pigment Substances 0.000 description 7
- 238000004090 dissolution Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003672 processing method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 150000002191 fatty alcohols Chemical class 0.000 description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 description 3
- MJJJJEUEZVGFLW-UHFFFAOYSA-N 2-dodecyl-2-sulfobutanedioic acid Chemical compound CCCCCCCCCCCCC(S(O)(=O)=O)(C(O)=O)CC(O)=O MJJJJEUEZVGFLW-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/06—Polyethene
-
- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/10—Homopolymers or copolymers of propene
- C09D123/12—Polypropene
-
- 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
- C09D127/04—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 chlorine atoms
- C09D127/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/80—Processes for incorporating ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
本公开属于粉末涂料制备技术领域，具体涉及一种热塑性粉末涂料的制备方法。针对现有技术中热塑性粉末成本升高、粉碎工艺中粒度难以控制的技术问题，本公开提供了一种适用于热塑性粉末涂料的制备方法，通过将涂料原料溶于有机溶剂及水中得到水包油型分型体系，再经蒸馏及回流、干燥获得成品热塑性粉末。采用该方法制备的粉末涂料具有粒度均匀、分布较窄的效果，更加适用于静电喷涂、浸涂等工艺，能够获得性能良好的涂层。
Description
技术领域
本公开属于粉末涂料制造技术领域，具体涉及一种热塑性粉末涂料的制备方法。
背景技术
公开该背景技术部分的信息仅仅旨在增加对本公开的总体背景的理解，而不必然被视为承认或以任何形式暗示该信息构成已经成为本领域一般技术人员所公知的现有技术。
粉末涂料是以固体树脂和颜料、填料及助剂等组成的固体粉末状合成树脂涂料。热塑性粉末涂料是由热塑性树脂、颜料、填料、增塑剂和稳定剂等成分组成的。热塑性粉末涂料包括：聚乙烯、聚丙烯、聚酯、聚氯乙烯、氯化聚醚、聚酰胺系、纤维素系、聚酯系等，在喷涂温度下熔融，冷却时凝固成膜，加工和喷涂方法简单，具有广泛的应用。
近些年来，随着环保、安全生产投入加大，原材料价格上升，生产企业的成本压力越来越大。除此之外，热塑性粉末涂料制备工艺中，大多都有粉碎工序。某些原料如聚乙烯，韧性好，粉碎较为困难；而且粉碎过程粒度难以控制。专利201620098256.5提出了一种热塑性粉末切断粉碎装置，解决了条状物料切断粉碎工作效率不高且浪费人工的问题。专利201610068092.6提供一种热塑性粉末涂料的制备方法，通过混合、挤出成型、冷却、压实除湿、初粉碎、再冷却、精粉碎和分装的加工工艺，制备出含水量较低的热塑性粉末涂料。专利201010579679.6、201510119704.5和201520074008.2通过熔融、挤出、造粒和粉碎等工序，获得热塑性粉末涂料。发明人认为，上述技术均包括对热塑性物料的粉碎过程，而本领域技术人员熟知，对热塑性物料硬度低、韧性强，不容易实现和控制粉碎过程。现有技术中通常采用液氮冷却物料后再粉碎的方法，但是液氮造价较高，并且超低温作业安全隐患较大，为后期加工及喷涂使用带来了许多不便。
发明内容
针对上述背景，发明人认为提供一种简便易行的、粒径分布较为集中的热塑性粉末涂料的加工方法，对于提升涂料的涂膜性能具有重要的意义。为了解决上述技术问题，本公开提供了一种针对热塑性粉末的加工方法，采用合适的溶剂、水将粉末涂料原料制备成为分散体，再经过滤、干燥等获得粒度分布窄的粉末涂料。采用该方法适用于多种涂料原料，制备的粉末涂料粒度分布窄，粒度可控，成膜喷涂性能良好。
为了实现上述技术效果，本公开提供以下技术方案：
本公开第一方面，提供一种热塑性粉末涂料的制备方法，所述制备方法包括以下步骤：将涂料原料依次加入有机溶剂及水中，获得分散体系，蒸馏该分散体系除去有机溶剂后回流获得涂料的水分散液，干燥得到该成品热塑性粉末涂料。
优选的，所述涂料原料包括主成膜物质、助剂。
所述主成膜物质为喷涂温度下熔融、冷却时凝固成膜的物质，如聚乙烯、聚丙烯、聚酯、聚氯乙烯、氯化聚醚、聚酰胺系、纤维素系、聚酯系等。
所述助剂包括但不限于热稳定剂、填充剂、耐老化剂、着色剂、乳化剂、抗氧化剂及表面活性剂中的一种或组合。
进一步优选的，所述表面活性剂包括但不限于OP-10、月桂基磺化琥珀酸单酯二钠、脂肪醇聚氧乙烯醚、十二烷基苯磺酸钠中的一种或组合。
进一步优选的，所述填充剂包括但不限于碳酸钙、滑石粉、白炭黑、钛白粉、粉煤灰、硅灰石粉、石、赤泥、硅藻土、玻璃微珠中的一种或组合。
优选的，所述有机溶剂包括但不限于四氢呋喃、四氯化碳、正庚烷、甲苯中的一种或组合。
优选的，所述水为包含乳化剂的水。
优选的，所述制备方法中，分散体系制备的具体步骤如下：将涂料原料加入有机溶剂中使其分散均匀，再向体系中加入水相，得到分散体系，所述水相与油相的加入体积比为2～8：1。
主成膜物质在有机相中溶解后形成均匀稳定的溶液，加入较大体积的水相后，该体系形成水包油型分散液，有机相包裹着成膜物质均匀分散在连续的水相中，有利于后期形成均匀分散的颗粒。
优选的，所述涂料的水分散液制备步骤如下：将分散体系减压蒸馏除去有机溶剂，回流一段时间得到悬浮液，即涂料的水分散液。
进一步优选的，回流过程中向反应釜中通入蒸汽，辅助将溶剂蒸出。
优选的，所述水分散液还可以经通过离心机脱水，再经干燥器干燥得到成品热塑性粉末涂料。
进一步优选的，所述干燥器包括但不限于液化床干燥器。
与现有技术相比，本公开的有益效果是：
1.针对现有技术中热塑性粉末涂料粉碎效果不佳的现状，本公开提供了一种适合于热塑性粉末涂料的加工方法，该加工方法相比背景技术中所述专利的方法更为简便易行，原料成本经济，易于购买。该方法提供性能良好的粉末涂料的同时，还能够有效的节约企业的生产成本。
2.本公开方法通过溶解、分散等过程，可使成膜物质分散成均匀的颗粒。再通过蒸馏、干燥等过程，脱除溶剂和水分，最终形成粒度均匀可控的粉末涂料。该过程没有粉碎操作，形成的粒度均匀，分布较窄，非常有利于静电喷涂、浸涂等工艺，获得性能好较的涂层。
附图说明
构成本公开的一部分的说明书附图用来提供对本公开的进一步理解，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。
图1为本公开制备方法的工艺流程图。
具体实施方式
应该指出，以下详细说明都是例示性的，旨在对本公开提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本公开所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本公开的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
正如背景技术所介绍的，热塑性粉末加工过程中往往需要对原料进行粉碎处理，热塑性物料的粉碎过程不容易控制和实现，粒径分布不佳会影响粉末涂料的成膜及喷涂性能。为了解决如上的技术问题，本公开提出了一种热塑性粉末涂料的制备方法，该方法简便易行，适用于多种热塑性成膜物质的加工，制备得到的热塑性粉末粒度均匀，分布较窄，非常有利于静电喷涂、浸涂等工艺，能够获得性能好较的涂层。
为了使得本领域技术人员能够更加清楚地了解本公开的技术方案，以下将结合具体的实施例与对比例详细说明本公开的技术方案。
实施例1：
取100g聚氯乙烯、碳酸钙10g、颜料8g、抗氧剂8g、OP-10表面活性剂1g，用240g正庚烷溶解分散均匀。将上述物料缓慢加入850g水中，搅拌半小时，形成稳定的分散体系。将上述分散体系在压力10KPa、95℃下减压蒸馏，气相在40℃下冷凝后，水相回流，油相采出。蒸馏3小时后，将体系过滤，滤饼经流化床干燥器干燥后得聚氯乙烯粉末涂料，平均粒径为65微米。
实施例2：
取80g聚乙烯、碳酸钙10g、颜料8g、抗氧剂8g、月桂基磺化琥珀酸单酯二钠1g，用200g甲苯溶解分散均匀。将上述物料缓慢加入900g水中，搅拌半小时，形成稳定的分散体系。将上述分散体系减压蒸馏，气相冷凝后，水相回流，油相采用。蒸馏5小时后，将体系过滤，滤饼经流化床干燥器干燥后得聚氯乙烯粉末涂料，平均粒径为54微米。
实施例3：
取90g聚丙烯、碳酸钙8g、颜料10g、抗氧剂10g、脂肪醇聚氧乙烯醚2g，用200g甲苯溶解分散均匀。将上述物料缓慢加入1000g水中，搅拌半小时，形成稳定的分散体系。将上述分散体系减压蒸馏，气相冷凝后，水相回流，油相采用。蒸馏5小时后，将体系过滤，滤饼经流化床干燥器干燥后得聚氯乙烯粉末涂料，平均粒径为75微米。
实施例4
发明人针对热塑性粉末粒径调整的方法进行研究，研究表明，通过调整主成膜物质与表面活性剂的用量，可以得到粒径可控的粉末颗粒。本实施例中，发明人针对实施例1中物料的用量进行了调整通过调节主成膜物质与表面活性剂的用量，得到以下实施例：
取90g聚丙烯、碳酸钙8g、颜料10g、抗氧剂10g、脂肪醇聚氧乙烯醚5g，用200g甲苯溶解分散均匀。将上述物料缓慢加入1000g水中，搅拌半小时，形成稳定的分散体系。将上述分散体系减压蒸馏，气相冷凝后，水相回流，油相采用。蒸馏5小时后，将体系过滤，滤饼经流化床干燥器干燥后得聚氯乙烯粉末涂料，平均粒径为45微米。
发明人针对主成膜物质与表面活性剂的比例及热塑性粉末粒径进行研究，研究结果如下表1所示：
表1成膜物质、表面活性剂比例对粒径的影响
试验例1
取100g聚氯乙烯、碳酸钙10g、颜料8g、抗氧剂8g、OP-10表面活性剂1g，用240g正庚烷溶解分散均匀。将上述物料缓慢加入500g水中，搅拌半小时，使其分散均匀。其余设置方式与实施例1中相同，蒸馏后过滤，滤饼经流化床干燥器干燥后得聚氯乙烯粉末涂料，粉末粘结程度较高，呈颗粒状，无法用于热喷涂。
实施例6
采用实例1-3所得样品，在马品铁片上进行静电喷涂，310℃条件下流平11s，形成均匀的涂层。膜性能表征结果如下：
表2实施例1-3制备涂料粉末的热喷涂性能
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
Claims (10)
1.一种热塑性粉末涂料的制备方法，其特征在于，所述制备方法包括以下步骤：将涂料原料依次加入有机溶剂及水中，获得分散体系，蒸馏该分散体系除去有机溶剂获得涂料的水分散液，过滤干燥得到该成品热塑性粉末涂料。
2.如权利要求1所述的制备方法，其特征在于，所述涂料原料包括主成膜物质、助剂；所述主成膜物质为喷涂温度下熔融，冷却时凝固成膜的物质。
3.如权利要求2所述的制备方法，其特征在于，所述助剂包括但不限于热稳定剂、填充剂、耐老化剂、着色剂、乳化剂、抗氧化剂及表面活性剂中的一种或组合。
4.如权利要求3所述的制备方法，其特征在于，所述填充剂包括但不限于碳酸钙、滑石粉、白炭黑、钛白粉、粉煤灰、硅灰石粉、石、赤泥、硅藻土、玻璃微珠中的一种或组合。
5.如权利要求1所述的制备方法，其特征在于，所述有机溶剂包括但不限于四氢呋喃、四氯化碳、正庚烷、甲苯中的一种或组合。
6.如权利要求1所述的制备方法，其特征在于，所述水还可以是包含乳化剂的水。
7.如权利要求1所述的制备方法，其特征在于，所述制备方法中，分散体系制备的具体步骤如下：将涂料原料加入有机溶剂中使其分散均匀，再向其中加水形成水包油型分散液。
8.如权利要求1所述的制备方法，其特征在于，所述涂料的水分散液制备步骤如下：将分散体系减压蒸馏除去有机溶剂，回流一段时间得到悬浮液，即涂料的水分散液。
9.如权利要求8所述的制备方法，其特征在于，回流过程中向反应釜中通入蒸汽，辅助将溶剂蒸出。
10.如权利要求1所述的制备方法，其特征在于，所述水分散液还可以经通过离心机脱水，再经干燥器干燥得到成品热塑性粉末涂料；优选的，所述干燥器包括但不限于液化床干燥器。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567405.6A CN110172280A (zh) | 2019-06-27 | 2019-06-27 | 一种热塑性粉末涂料的制备方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567405.6A CN110172280A (zh) | 2019-06-27 | 2019-06-27 | 一种热塑性粉末涂料的制备方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110172280A true CN110172280A (zh) | 2019-08-27 |
Family
ID=67699094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910567405.6A Pending CN110172280A (zh) | 2019-06-27 | 2019-06-27 | 一种热塑性粉末涂料的制备方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110172280A (zh) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163280A (zh) * | 1995-10-03 | 1997-10-29 | 日本油漆株式会社 | 制备窄粒度分布的树脂颗粒的方法 |
| CN101238168A (zh) * | 2005-08-03 | 2008-08-06 | 三洋化成工业株式会社 | 树脂颗粒 |
-
2019
- 2019-06-27 CN CN201910567405.6A patent/CN110172280A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163280A (zh) * | 1995-10-03 | 1997-10-29 | 日本油漆株式会社 | 制备窄粒度分布的树脂颗粒的方法 |
| CN101238168A (zh) * | 2005-08-03 | 2008-08-06 | 三洋化成工业株式会社 | 树脂颗粒 |
Non-Patent Citations (1)
| Title |
|---|
| 黄发荣等: "《高分子材料的循环利用》", 31 January 2000 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2758306C (en) | Micronized sulphur powder and method of production of same | |
| CN101905091B (zh) | 一种亚临界流体提取生物活性成分的设备和方法 | |
| EP0954536B2 (de) | Verfahren zur herstellung von feinteiligen polysaccharidderivaten | |
| US9278858B2 (en) | Micronized sulphur powder and method of production of same | |
| US20100111816A1 (en) | Inorganic particle-containing emulsion and manufacturing method of a particle by using the inorganic particle-containing emulsion | |
| DE102004062762A1 (de) | Feinkörniges Polyarylenetherketonpulver | |
| DE1036220B (de) | Verfahren zur Herstellung feinteiliger anorganischer Oxydgele | |
| CN110172280A (zh) | 一种热塑性粉末涂料的制备方法 | |
| NO812159L (no) | Poroese, pulverformede polymerartikler. | |
| JP2012001873A (ja) | 製紙法を使った、地球環境にやさしい多機能型有機マルチシートの製造方法 | |
| US6872820B2 (en) | Finely divided polysaccharide derivatives | |
| DE102012102327B3 (de) | Verfahren zur Herstellung von wasserunlöslichen Lignin-Agglomeraten | |
| KR100878595B1 (ko) | 고압반응기를 이용한 폴리올레핀 수지 용액의 결정화법에의한 분말화 방법 | |
| EP2658930B1 (de) | Öl- und wachshaltige mittel in stückiger form mit bestimmten wachsmischungen für die asphalt- und bitumeneinfärbung | |
| DE4000697A1 (de) | Verfahren zur herstellung sphaerischer partikel von magnesiumalkoxid | |
| EP1834978A1 (de) | Verfahren zur Mikronisierung von Polymeren | |
| CN104254492A (zh) | 包括高温破碎步骤的制备沉淀二氧化硅的方法 | |
| DE10150326A1 (de) | Verfahren zur Herstellung von Alkalialkoholat- und Erdalkalialkoholat-Granulaten | |
| CN113244278B (zh) | 一种纳米级苦木粉体的制备方法 | |
| KR100659437B1 (ko) | 고농축 안료 압분체의 제조방법 | |
| KR100799762B1 (ko) | 고분자 수지의 분말화 방법 | |
| CN106273046B (zh) | 制备聚偏氟乙烯的设备及聚偏氟乙烯的制备方法 | |
| CN1319634A (zh) | 亚麻籽胶生产工艺 | |
| DK176546B1 (da) | Fremgangsmåde til fremstilling af uorganiske form- eller briketgranulater af uorganiske pigmenter med hjælpestoffer | |
| DE19829898A1 (de) | Verfahren zur Herstellung von Kunststoffrezyklaten |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190827 |
|
| RJ01 | Rejection of invention patent application after publication |