CN108504007B - 一种聚四氟乙烯/酰胺蜡的复合微粉及其制备方法 - Google Patents
一种聚四氟乙烯/酰胺蜡的复合微粉及其制备方法 Download PDFInfo
- Publication number
- CN108504007B CN108504007B CN201810354904.2A CN201810354904A CN108504007B CN 108504007 B CN108504007 B CN 108504007B CN 201810354904 A CN201810354904 A CN 201810354904A CN 108504007 B CN108504007 B CN 108504007B
- Authority
- CN
- China
- Prior art keywords
- polytetrafluoroethylene
- micro powder
- amide wax
- powder
- coating
- 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.)
- Expired - Fee Related
Links
- 239000000843 powder Substances 0.000 title claims abstract description 72
- -1 Polytetrafluoroethylene Polymers 0.000 title claims abstract description 59
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 58
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 58
- 150000001408 amides Chemical class 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 8
- 238000010894 electron beam technology Methods 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 28
- 238000000576 coating method Methods 0.000 abstract description 28
- 238000007872 degassing Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 244000028419 Styrax benzoin Species 0.000 description 2
- 235000000126 Styrax benzoin Nutrition 0.000 description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229960002130 benzoin Drugs 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 235000019382 gum benzoic Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of 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; Compositions of derivatives of such polymers
- C08L27/02—Compositions of 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of 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
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of 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; Derivatives of such polymers
- C08J2327/02—Characterised by the use of 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; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of 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; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
本发明公开了一种聚四氟乙烯/酰胺腊的复合微粉及其制备方法，所述聚四氟乙烯/酰胺腊的复合微粉包括聚四氟乙烯微粉和酰胺腊微粉，所述聚四氟乙烯微粉和酰胺腊微粉的质量份数之比为10：1～1：1。所述制备方法包括如下步骤：将聚四氟乙烯微粉和酰胺腊混合，经过机械粉碎，然后，通过筛网分级，得到聚四氟乙烯/酰胺腊的复合微粉。本发明将辐照聚四氟乙烯与酰胺腊进行复合，使微粉腊充分发挥协同作用，制备高效聚四氟乙烯基的耐磨脱气复合微粉，解决粉末涂料在金属表面涂膜后的耐磨、耐污、脱气等问题。
Description
技术领域
本发明涉及一种聚四氟乙烯复合微粉及其制备技术，特别涉及一种聚四氟乙烯/酰胺腊的复合微粉及其制备方法。
背景技术
粉末涂料由于没有任何的溶剂添加，被认为是一种环保型的涂料。然而粉末涂料在对复杂金属铸件和表面处理未到位的金属材料表面施加较厚涂层时，因为金属表面带有较多的孔隙，在涂装后涂层表面会出现较多的气泡、缩孔、针孔等涂层缺陷，不仅破坏涂层表面美观，而且还缩短了金属构件的安全使用寿命。
传统的解决方法是添加少量的脱气剂如安息香等，但这种添加剂在高温时容易黄变，脱气效果较弱，不能高效排除熔融涂层中溶解的大量气体，较难保证涂层的表面涂装效果。使用微粉化腊，如聚乙烯蜡在熔融时可以造成涂层体系黏度及表面张力急剧下降，使蜡基向涂层表面迁移，在迁移过程中，吸附在多孔底材上的气体或涂膜本身的水汽可以脱出，起到了脱气、除针孔的作用，能部分解决安息香的问题。另外一种微粉腊如酰胺蜡添加到涂料组分中，会增加涂料组分间的不相容性及混乱度，在熔融状态下导致体系粘度、表面张力急剧下降，蜡微粒向涂层表面迁移，同时也有助于吸附在多孔底材上的气体脱出，起到很好的脱气效果。这些添加剂虽然对涂膜的表面耐磨、耐污等表现出一定的效果，并不显著。
聚四氟乙烯微粉蜡可以通过辐照和粉碎高分子量的聚四氟乙烯来获得。将聚四氟乙烯微粉蜡添加到粉末涂料配方中，在与粉末涂料其他组分一起挤出混合过程中，可以起到对螺杆的润滑作用，提高挤出效率，此外添加聚四氟乙烯微粉蜡还能辅助提高涂层的滑爽、耐磨、耐污等性能，但独立使用的聚四氟乙烯微粉蜡无法解决金属表面涂层的气泡、缩孔、针孔等涂层缺陷问题。
发明内容
本发明提供了一种聚四氟乙烯/酰胺腊的复合微粉及其制备方法，用以解决上述问题。
为了解决上述技术问题，本发明的技术方案是：
一种聚四氟乙烯/酰胺腊的复合微粉，包括聚四氟乙烯微粉和酰胺腊微粉，所述聚四氟乙烯微粉和酰胺腊微粉的质量份数之比为10：1～1：1。
作为优选，所述聚四氟乙烯微粉的平均粒径为2～20μm。
作为优选，所述酰胺腊微粉的平均粒径为2～20μm。
本发明还提供了上述聚四氟乙烯/酰胺腊的复合微粉的制备方法，包括如下步骤：将聚四氟乙烯微粉和酰胺腊混合，经过机械粉碎，然后，通过筛网分级，得到聚四氟乙烯/酰胺腊的复合微粉。
作为优选，所述聚四氟乙烯微粉的制备方法如下：通过在空气气氛的条件下通过电子束辐照聚四氟乙烯，经粉碎后获得所述聚四氟乙烯微粉。
作为优选，电子束辐照剂量设置为1-200Mrad。
与现有技术相比，本发明具有以下优点：本发明所述聚四氟乙烯/酰胺腊的复合微粉包括聚四氟乙烯微粉和酰胺腊微粉，所述聚四氟乙烯微粉和酰胺腊微粉的质量份数之比为10：1～1：1。所述聚四氟乙烯/酰胺腊的复合微粉的制备方法包括如下步骤：将聚四氟乙烯微粉和酰胺腊混合，经过机械粉碎，然后，通过筛网分级，得到聚四氟乙烯/酰胺腊的复合微粉。本发明将辐照聚四氟乙烯蜡与酰胺腊进行复合，使微粉腊充分发挥协同作用，制备高效聚四氟乙烯基的耐磨脱气复合微粉，解决粉末涂料在金属表面涂膜后的耐磨、耐污、脱气等问题。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面对本发明的具体实施方式做详细的说明。
一种聚四氟乙烯/酰胺腊的复合微粉，包括聚四氟乙烯微粉和酰胺腊微粉，所述聚四氟乙烯微粉和酰胺腊微粉的质量份数之比为10：1～1：1。
其中，所述聚四氟乙烯微粉的粒径为2～20μm。所述酰胺腊微粉的粒径为 2～20μm。
所述聚四氟乙烯/酰胺腊的复合微粉的制备方法，包括如下步骤：
1、用GJ-2型电子加速器辐照分散聚四氟乙烯树脂形成聚四氟乙烯微粉，辐照剂量100Mrad。
2、将100份所述聚四氟乙烯微粉与20份市售的酰胺蜡通过机械搅拌进行混合。
3、将混合好的物料倒入带有冷却装置的高速粉碎机中，在32000rpm高速粉碎10min，通过筛网分级，得到平均粒径8μm的聚四氟乙烯/酰胺腊的复合微粉。将5份所述聚四氟乙烯/酰胺腊的复合微粉与95份未添加脱气剂和聚合物腊的粉末涂料组分共混，制备的粉末涂料具有更好的表面耐磨、耐污及表面平整度。
本领域的技术人员可以对发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包括这些改动和变型在内。
Claims (3)
1.一种聚四氟乙烯/酰胺蜡 的复合微粉，其特征在于，包括聚四氟乙烯微粉和酰胺蜡微粉，所述聚四氟乙烯微粉和酰胺蜡 微粉的质量份数之比为10:1～1:1；其中，所述聚四氟乙烯/酰胺蜡 的复合微粉的制备方法包括如下步骤：在空气气氛的条件下通过电子束辐照聚四氟乙烯，经粉碎后获得所述聚四氟乙烯微粉；将获得的聚四氟乙烯微粉和酰胺蜡 混合，经过机械粉碎，然后，通过筛网分级，得到聚四氟乙烯/酰胺蜡 的复合微粉；其中，所述电子束辐照剂量设置为1～200Mrad。
2.根据权利要求1所述的聚四氟乙烯/酰胺蜡 的复合微粉，其特征在于，所述聚四氟乙烯微粉的平均粒径为2～20μm。
3.根据权利要求1所述的聚四氟乙烯/酰胺蜡 的复合微粉，其特征在于，所述酰胺蜡微粉的平均粒径为2～20μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810354904.2A CN108504007B (zh) | 2018-04-19 | 2018-04-19 | 一种聚四氟乙烯/酰胺蜡的复合微粉及其制备方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810354904.2A CN108504007B (zh) | 2018-04-19 | 2018-04-19 | 一种聚四氟乙烯/酰胺蜡的复合微粉及其制备方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108504007A CN108504007A (zh) | 2018-09-07 |
| CN108504007B true CN108504007B (zh) | 2021-01-05 |
Family
ID=63382848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810354904.2A Expired - Fee Related CN108504007B (zh) | 2018-04-19 | 2018-04-19 | 一种聚四氟乙烯/酰胺蜡的复合微粉及其制备方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108504007B (zh) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003016410A2 (en) * | 2001-08-13 | 2003-02-27 | Byk-Cera B.V. | Method for encapsulation of an inorganic component in a wax, a wax particle prepared by the method and the use thereof |
| CN102627862A (zh) * | 2012-03-21 | 2012-08-08 | 嘉兴学院 | 强化木地板彩色固体封蜡及其制备方法 |
| CN105949699A (zh) * | 2016-05-23 | 2016-09-21 | 深圳市亚太兴实业有限公司 | 一种ul-94 v0级阻燃hips复合材料及其制备方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10216118A1 (de) * | 2002-04-12 | 2004-04-22 | Clariant Gmbh | Verwendung von Metallocenwachsen in Pulverlacken |
| CN102585409A (zh) * | 2012-03-13 | 2012-07-18 | 苏州新区特氟龙塑料制品厂 | 一种光亮改性聚偏二氟乙烯的配方 |
| CN103524955A (zh) * | 2013-09-18 | 2014-01-22 | 铜陵新创流体科技有限公司 | 一种减摩密封圈 |
| GB201322453D0 (en) * | 2013-12-18 | 2014-02-05 | Dow Corning | Antifriction coating |
| CN104031347A (zh) * | 2014-06-20 | 2014-09-10 | 浙江衢州万能达科技有限公司 | 一种改性聚酰胺蜡和聚四氟乙烯组合物 |
| CN105037871B (zh) * | 2015-06-24 | 2017-07-07 | 上海神沃电子有限公司 | 一种pptc芯片及其制法 |
-
2018
- 2018-04-19 CN CN201810354904.2A patent/CN108504007B/zh not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003016410A2 (en) * | 2001-08-13 | 2003-02-27 | Byk-Cera B.V. | Method for encapsulation of an inorganic component in a wax, a wax particle prepared by the method and the use thereof |
| CN102627862A (zh) * | 2012-03-21 | 2012-08-08 | 嘉兴学院 | 强化木地板彩色固体封蜡及其制备方法 |
| CN105949699A (zh) * | 2016-05-23 | 2016-09-21 | 深圳市亚太兴实业有限公司 | 一种ul-94 v0级阻燃hips复合材料及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108504007A (zh) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20080118766A1 (en) | Mixed powder for powder metallurgy and green compact using the same | |
| CN109228057B (zh) | 一种轮胎脱模剂及其制备方法 | |
| CN103881284A (zh) | 一种超薄金属颜料改善树脂外观组合物及其制备方法 | |
| WO2020031989A1 (ja) | 光造形用スラリー及びそれを用いた光造形物の製造方法 | |
| FR3015506A1 (fr) | Composition de poudres de poly-arylene-ether-cetone-cetones autorisant un excellent compromis coulabilite et coalescence adaptees au frittage laser | |
| CN104844817A (zh) | 一种pcb钻孔用垫板及其制造方法 | |
| RU2703620C2 (ru) | Полимерная композиция, способ ее получения, ее применение и содержащая ее композиция | |
| CN106590367B (zh) | 一种碳纳米管自修复剂及其在抗静电粉末涂料中的应用 | |
| CN108504007B (zh) | 一种聚四氟乙烯/酰胺蜡的复合微粉及其制备方法 | |
| CN111303676A (zh) | 石墨烯分散液及其制备方法和应用该石墨烯分散液的防腐涂料 | |
| Liu et al. | Influence of Ca CO 3/glass fiber hybrid fillers on the mechanical and thermal properties of polytetrafluoroethylene | |
| Feng et al. | Assessment of efficacy of trivalent lanthanum complex as surface modifier of calcium carbonate | |
| CN106750611A (zh) | 一种改性天然乳胶材料 | |
| US3717485A (en) | Pattern wax compositions | |
| WO2018062546A1 (ja) | 制振塗料用樹脂組成物及びその製造方法 | |
| US3655414A (en) | Foundry mold process and pattern composition | |
| CN112194963A (zh) | 一种热固性粉末涂料及其加工工艺 | |
| CN110845965A (zh) | 一种用于3dp工艺的粘结剂及其制备方法和应用 | |
| CN103805026A (zh) | 一种中纤板 | |
| CN103804876A (zh) | 一种改性高强度、高导热聚碳酸酯母粒及其制备方法 | |
| CN104946120A (zh) | 一种水性木器漆及其制备方法 | |
| JP2016050269A (ja) | 水系制振塗料組成物 | |
| JPS58189265A (ja) | 有機塗料の製造方法 | |
| JPH04218049A (ja) | レジスト組成物 | |
| Fujii et al. | Preparation of exoergic insulating composite material using electrostatic adsorption model |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |