CN109337093B - 聚四氟乙烯分散液及其制备方法 - Google Patents
聚四氟乙烯分散液及其制备方法 Download PDFInfo
- Publication number
- CN109337093B CN109337093B CN201811154626.2A CN201811154626A CN109337093B CN 109337093 B CN109337093 B CN 109337093B CN 201811154626 A CN201811154626 A CN 201811154626A CN 109337093 B CN109337093 B CN 109337093B
- Authority
- CN
- China
- Prior art keywords
- polytetrafluoroethylene
- surfactant
- dispersion
- dispersion liquid
- modified
- 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.)
- Active
Links
Classifications
-
- 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
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/07—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
-
- 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
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
-
- 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
- C08J2427/00—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
- C08J2427/02—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
- C08J2427/12—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
- C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Abstract
本发明属于聚四氟乙烯技术领域,具体的涉及一种聚四氟乙烯分散液及其制备方法。以质量分数计,包括58~62wt%的聚四氟乙烯干料以及相对于聚四氟乙烯干料5~8wt%的表面活性剂和33~39wt%的去离子水。该聚四氟乙烯分散液稳定性好,超过2个月以上不沉降,不易腐败变质,且在加工应用过程中涂层均匀、光滑、具有良好的光泽性、透明性和耐热性。
Description
技术领域
本发明属于聚四氟乙烯技术领域,具体的涉及一种聚四氟乙烯分散液及其制备方法。
背景技术
聚四氟乙烯分散液具有优异的耐腐蚀性、耐候性、耐溶剂性、低摩擦系数、耐磨性、耐冲击性等,广泛用于海上平台、钻井架、港口机械设施、涵洞、隧道的防腐,以及化工管道、反应设备、原油输送管路等的防腐,厨具、食品传送带等不粘处理,交通工具中航空飞机、宇宙飞船、人造卫星、火箭运载、陆运火车、汽车、海上轮船等需要高速运行、减少阻力、避免擦伤。
改性和均聚聚四氟乙烯分散液是市面上常见的两种分别单独使用的聚四氟乙烯浓缩分散液,各有优缺点。改性聚四氟乙烯分散液所做涂层具有良好的光泽度、透明性,但耐热性差。均聚聚四氟乙烯分散液具有耐热、稳定性好的特性,但光泽度一般,透明性差。
中国专利CN1293103C公开了一种聚四氟乙烯水性分散液组合物及其制造方法,使用一种非离子表面活性剂,分两次添加相对于聚四氟乙烯共计2.5~32wt%的量。存在以下问题:(1)使用的非离子表面活性剂多,成本高,且大量表面活性剂转移到水相中,污水处理难度大,易造成环境污染。(2)使用单一非离子表面活性剂,所制备的分散液稳定性较差,储存不足1个月就会发生沉降。(3)分散液流平性差,所做涂层不均匀,表面不光滑,光泽度差,影响外观和不粘性。
中国专利CN102675781A公开了一种聚四氟乙烯浓缩水性分散液、制备方法及其应用,使用浊点30~45℃和70~95℃的两种非离子表面活性剂,聚四氟乙烯为单一的均聚或改性,浓缩后分散液pH值为8~9。其缺点是(1)非离子表面活性剂种类少,分散液稳定性和流平性不够好;(2)仅包含均聚聚四氟乙烯或改性聚四氟乙烯其中一种,均聚光泽度一般,透明性差,改性耐热性差、稳定性差;(3)pH值偏低,温度较高环境中,聚四氟乙烯分散液易腐败变质,如夏季高温时期。
发明内容
本发明的目的是克服现有技术的不足,提供一种聚四氟乙烯分散液。该聚四氟乙烯分散液稳定性好,超过2个月以上不沉降,不易腐败变质,且在加工应用过程中涂层均匀、光滑、具有良好的光泽性、透明性和耐热性;本发明同时提供了其制备方法。
本发明所述的聚四氟乙烯分散液,以质量分数计,包括58~62wt%的聚四氟乙烯干料以及相对于聚四氟乙烯干料5~8wt%的表面活性剂和33~39wt%的去离子水。
其中:
以上质量分数,均是相对于聚四氟乙烯干料而言的;优选的,表面活性剂的质量占聚四氟乙烯干料质量的6~7wt%。
表面活性剂为聚氧乙烯型非离子表面活性剂,烃基为辛基、壬基或脂肪烃基中的一种;表面活性剂由表面活性剂A、表面活性剂B和表面活性剂C组成。
表面活性剂A是DOW(陶氏公司)的NP-9、NP-9.5、NP-10或15-S-9,巴斯夫公司的A7N或TO5等或其它生产厂家类似产品。表面活性剂B是DOW(陶氏公司)的X-100或NP-11,汉姆公司的OP-9.5或其它生产厂家类似产品等。表面活性剂C是DOW(陶氏公司)的X-102,NP-12,NP-13或15-S-12,巴斯夫公司的A9N或其它生产厂家类似产品等。
表面活性剂A浊点46~69℃,表面活性剂B浊点60~80℃,表面活性剂C浊点70~90℃。浊点是聚氧乙烯型非离子表面活性剂的突出性质,反映非离子表面活性剂亲水性大小,亲水性越大的,浊点也越高,亲油性也就越低。表面活性剂在聚四氟乙烯分散液中发挥其亲水亲油性,使分散液保持良好的稳定性、流平性,单一的亲水性高或亲油性高,都不利。选用低、中、高三种不同浊点的表面活性剂,充分发挥其乳化、分散、润湿性,稳定聚四氟乙烯分散液在不同的环境温度下的贮存、使用性能。
表面活性剂A、表面活性剂B和表面活性剂C的质量比是2~5:0.5~3:0.1~2。在40~60℃的去离子水中,按质量比例加入A、B、C三种表面活性剂,搅拌溶解均匀,配成50%~90%的水溶液使用。
改性聚四氟乙烯分散液和均聚聚四氟乙烯分散液的固含量为15~35wt%,平均粒径为0.18~0.23μm。
本发明所述的聚四氟乙烯分散液的制备方法,以聚四氟乙烯聚合液为原料,加入表面活性剂水溶液混合均匀,然后加热,真空浓缩,调节分散液pH即得。
其中:
聚四氟乙烯聚合液中的聚四氟乙烯由改性聚四氟乙烯和均聚聚四氟乙烯组成。
改性聚四氟乙烯和均聚聚四氟乙烯的质量比为5~1:5~9;优选4~3:6~7。
改性聚四氟乙烯是全氟正丙级乙烯基醚(PPVE)、六氟丙烯(HFP)、偏氟乙烯(VDF)、氟乙烯(VF)或三氟氯乙烯(CTFE)改性聚四氟乙烯中的一种。
均聚聚四氟乙烯或改性聚四氟乙烯可以为所有的已有产品,也可采用现有聚四氟乙烯分散聚合技术中的任意一种配方和工艺。即以四氟乙烯TFE为单体,以水为介质,以固体石蜡为稳定剂,以过硫酸铵、过硫酸钠、过硫酸钾或过氧化丁二酸中的一种或两种为引发剂,以全氟辛酸铵PFOA或氟醚酸盐类为分散剂,通过分散聚合得到均聚聚四氟乙烯聚合液。聚合过程中加入改性剂即得到改性聚四氟乙烯聚合液。例如,中国专利201310272864.4、201310239328.4或201310156286.8中所述的制备改性聚四氟乙烯聚合液的方法等。
无论采用何种聚合方式及聚合试剂,有无改性剂,优选得到的聚四氟乙烯聚合液的固含量为15~35wt%,平均粒径为0.18~0.23μm。
真空浓缩时真空度为-0.08~-0.1MPa、加热温度为35~55℃。
调节分散液的pH值为9~11。
本发明最终调节聚四氟乙烯分散液pH值为9~11,抑制细菌增生,延长聚四氟乙烯分散液保质期,防止分散液腐败变质、发臭。
本发明创造性的将改性聚四氟乙烯分散液和均聚聚四氟乙烯分散液混配,优选最佳混配比例,二者互补,使分散液兼顾改性的高光泽度、透明性和均聚的耐热性、稳定性好的特性。
作为一个优选的技术方案,本发明所述的聚四氟乙烯分散液的制备方法,以固含量为15~35wt%,平均粒径为0.18~0.23μm的改性聚四氟乙烯和均聚聚四氟乙烯聚合液为原料,加入A、B、C三种表面活性剂按比例混合好的水溶液,然后在真空度0.08~0.1MPa,加热温度35~55℃条件下浓缩,调节分散液pH值为9~11即可。
本发明与现有技术相比,具有以下有益效果:
(1)该聚四氟乙烯分散液稳定性好,超过2个月以上不沉降,不易腐败变质,且在加工应用过程中涂层均匀、光滑、具有良好的光泽性、透明性和耐热性。
(2)本发明创造性的将改性聚四氟乙烯分散液和均聚聚四氟乙烯分散液混配,优选最佳混配比例,二者互补,使分散液兼顾改性的高光泽度、透明性和均聚的耐热性、稳定性好的特性。
具体实施方式
以下结合实施例对本发明作进一步描述。
实施例1
在120L配料槽内,加入浓度为22.3%的均聚聚四氟乙烯聚合液60L,浓度为21%的PPVE改性聚四氟乙烯聚合液40L,加入表面活性剂水溶液,其中含仲醇乙烯基醚DOW 15-S-9(DOW,陶氏)0.87kg(3.5wt%,基于干料);辛基酚聚氧乙烯基醚DOW X-100(DOW,陶氏)0.50kg(2wt%,基于干料);仲醇乙烯基醚DOW 15-S-12(DOW,陶氏)0.25kg(1wt%,基于干料)。
升温至60℃,搅拌混合均匀。放入浓缩槽内,槽内真空度至-0.090MPa,浓缩槽使用循环热水加热,热水温度50℃,连续加热蒸发水份浓缩,直至槽内聚四氟乙烯含量≥62%。停止浓缩,加入适量氨水调节pH至9~11;加入适量去离子水,调节聚四氟乙烯含量至58~62%。得到目标产物聚四氟乙烯分散液。
实施例2
在120L配料槽内,加入浓度为25%的均聚聚四氟乙烯聚合液60L,浓度为21%的HFP改性聚四氟乙烯聚合液40L,加入表面活性剂水溶液,其中含仲醇乙烯基醚DOW 15-S-9(DOW,陶氏)0.95kg(3.5wt%,基于干料);辛基酚聚氧乙烯基醚DOW X-100(DOW,陶氏)0.54kg(2wt%,基于干料);仲醇乙烯基醚DOW 15-S-12(DOW,陶氏)0.27kg(1wt%,基于干料)。
加热浓缩及pH调整过程同实施例1。
对比例1
在120L配料槽内,加入浓度为21%的均聚聚四氟乙烯聚合液100L。加入表面活性剂水溶液,其中含辛基酚聚氧乙烯基醚DOW X-100(DOW,陶氏)3.58kg(15wt%,基于干料)。升温至75℃,搅拌混合均匀后,停止搅拌,恒温静置。2小时后,分散液分层,上层为澄清水相,下层为浓缩后的聚四氟乙烯分散液。取下层液,再加入辛基酚聚氧乙烯基醚DOW X-100(DOW,陶氏)0.95kg(4wt%,基于PTFE),升温至60℃,搅拌均匀。加入适量氨水调节PH至9~11;加入适量去离子水,调节聚四氟乙烯含量至58~62%。得到目标产物聚四氟乙烯分散液。
对比例2
在120L配料槽内,加入浓度为25%的HFP改性聚四氟乙烯聚合液100L,加入表面活性剂水溶液,其中含壬基酚聚氧乙烯基醚DOW NP-8(DOW,陶氏)0.87kg(3wt%,基于干料);壬基酚聚氧乙烯基醚DOW NP-12(DOW,陶氏)1.02kg(3.5wt%,基于干料);加热浓缩过程同实施例1,pH调整至8~9。
分别测定实施例1~2和对比例1~2得到的聚四氟乙烯分散液的固含量、表面活性剂含量、pH值,测试按照Q/0321DYG 005-2015进行。
分别测定实施例1~2和对比例1~2得到的聚四氟乙烯分散液的稳定性,测试方法为:在250mL量筒内,加入200mL分散液,室温下静置60天后,测量分层高度。期间观察分散液是否腐败变质。
分别测定实施例1~2和对比例1~2得到的聚四氟乙烯分散液的耐热性,测试方法为:在直径10cm平底铝盒内加入5g分散液,300℃烘箱内加热2小时,观察变色情况。
分别测定实施例1~2和对比例1~2得到的聚四氟乙烯分散液的光泽度,测试方法为:将分散液涂覆在Q板上,烧结成涂层,测定入射角为60°的光反射率。
表1聚四氟乙烯分散液性质测定结果
实施例1 | 实施例2 | 对比例1 | 对比例2 | |
固含量/% | 60.2 | 60.1 | 60.0 | 60.3 |
表面活性剂含量/% | 6.5 | 6.3 | 6.4 | 6.6 |
pH | 9.8 | 10.0 | 10.1 | 8.7 |
沉降稳定性/mm | 0 | 0 | 7 | 4 |
是否变质 | 否 | 否 | 否 | 有细菌黄斑 |
耐热性 | 白色未黄变 | 白色未黄变 | 白色未黄变 | 黄变 |
光泽度 | 30.1 | 29.5 | 18.8 | 20.2 |
对本领域技术人员而言,在本发明基础上,可以对之作一些修改或改进,这是显而易见的。因此,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。
Claims (4)
1.一种聚四氟乙烯分散液,其特征在于:以质量分数计,包括58~62wt%的聚四氟乙烯干料以及相对于聚四氟乙烯干料5~8wt%的表面活性剂和33~39wt%的去离子水;
表面活性剂为聚氧乙烯型非离子表面活性剂,烃基为辛基或壬基中的一种;表面活性剂由表面活性剂A、表面活性剂B和表面活性剂C组成;
所述的聚四氟乙烯分散液的制备方法,以聚四氟乙烯聚合液为原料,加入表面活性剂水溶液混合均匀,然后加热,真空浓缩,调节分散液pH即得;
聚四氟乙烯聚合液中的聚四氟乙烯由改性聚四氟乙烯和均聚聚四氟乙烯组成;改性聚四氟乙烯和均聚聚四氟乙烯的质量比为5~1:5~9;
调节分散液的pH值为9~11;
表面活性剂A浊点46~69℃,表面活性剂B浊点60~80℃,表面活性剂C浊点70~90℃;
表面活性剂A、表面活性剂B和表面活性剂C的质量比是2~5:0.5~3:0.1~2。
2.根据权利要求1所述的聚四氟乙烯分散液,其特征在于:改性聚四氟乙烯是全氟正丙级乙烯基醚、六氟丙烯、偏氟乙烯、氟乙烯或三氟氯乙烯改性聚四氟乙烯中的一种。
3.根据权利要求1所述的聚四氟乙烯分散液,其特征在于:真空浓缩时真空度为-0.08~-0.1MPa、加热温度为35~55℃。
4.根据权利要求1所述的聚四氟乙烯分散液,其特征在于:聚四氟乙烯聚合液的固含量为15~35wt%,平均粒径为0.18~0.23μm。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811154626.2A CN109337093B (zh) | 2018-09-30 | 2018-09-30 | 聚四氟乙烯分散液及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811154626.2A CN109337093B (zh) | 2018-09-30 | 2018-09-30 | 聚四氟乙烯分散液及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109337093A CN109337093A (zh) | 2019-02-15 |
CN109337093B true CN109337093B (zh) | 2021-09-24 |
Family
ID=65308008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811154626.2A Active CN109337093B (zh) | 2018-09-30 | 2018-09-30 | 聚四氟乙烯分散液及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109337093B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113061311B (zh) * | 2021-04-21 | 2022-08-02 | 山东森荣新材料股份有限公司 | 高频覆铜板用ptfe改性膜 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6075073A (en) * | 1998-08-20 | 2000-06-13 | Apex Medical Technologies, Inc. | Latices from emulsified hydrocarbon rubber solutions by membrane separation |
CN101180329A (zh) * | 2005-05-20 | 2008-05-14 | 纳幕尔杜邦公司 | 具有低氟表面活性剂含量的芯/壳氟聚合物分散体 |
CN101291987A (zh) * | 2005-10-20 | 2008-10-22 | 旭硝子株式会社 | 聚四氟乙烯水性分散液及其制品 |
CN102675781A (zh) * | 2012-05-07 | 2012-09-19 | 中昊晨光化工研究院 | 一种聚四氟乙烯浓缩水性分散液、制备方法及其应用 |
CN104119544A (zh) * | 2014-07-10 | 2014-10-29 | 中昊晨光化工研究院有限公司 | 聚全氟乙丙烯浓缩分散液的制备方法 |
CN104403035A (zh) * | 2014-11-26 | 2015-03-11 | 浙江巨圣氟化学有限公司 | 一种聚四氟乙烯分散乳液的制备方法 |
CN107652386A (zh) * | 2016-07-26 | 2018-02-02 | 中昊晨光化工研究院有限公司 | 一种改性聚四氟乙烯分散浓缩液的制备方法 |
-
2018
- 2018-09-30 CN CN201811154626.2A patent/CN109337093B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6075073A (en) * | 1998-08-20 | 2000-06-13 | Apex Medical Technologies, Inc. | Latices from emulsified hydrocarbon rubber solutions by membrane separation |
CN101180329A (zh) * | 2005-05-20 | 2008-05-14 | 纳幕尔杜邦公司 | 具有低氟表面活性剂含量的芯/壳氟聚合物分散体 |
CN101291987A (zh) * | 2005-10-20 | 2008-10-22 | 旭硝子株式会社 | 聚四氟乙烯水性分散液及其制品 |
CN102675781A (zh) * | 2012-05-07 | 2012-09-19 | 中昊晨光化工研究院 | 一种聚四氟乙烯浓缩水性分散液、制备方法及其应用 |
CN104119544A (zh) * | 2014-07-10 | 2014-10-29 | 中昊晨光化工研究院有限公司 | 聚全氟乙丙烯浓缩分散液的制备方法 |
CN104403035A (zh) * | 2014-11-26 | 2015-03-11 | 浙江巨圣氟化学有限公司 | 一种聚四氟乙烯分散乳液的制备方法 |
CN107652386A (zh) * | 2016-07-26 | 2018-02-02 | 中昊晨光化工研究院有限公司 | 一种改性聚四氟乙烯分散浓缩液的制备方法 |
Also Published As
Publication number | Publication date |
---|---|
CN109337093A (zh) | 2019-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100404562C (zh) | Tfe共聚物 | |
EP2824143B1 (en) | Aqueous fluoropolymer dispersion | |
CN102086243B (zh) | 高光泽度聚四氟乙烯分散浓缩液的制备方法 | |
EP2902424B1 (en) | Tetrafluoroethene polymer dispersions stabilized with aliphatic non-ionic surfactants | |
EP3527634A1 (en) | Fluoropolymers and fluoropolymer dispersions | |
US20030130393A1 (en) | Concentrated fluoroploymer dispersions | |
CN1753941A (zh) | 不含或含少量低分子量氟化表面活性剂的含氟聚合物分散体 | |
CN101180329A (zh) | 具有低氟表面活性剂含量的芯/壳氟聚合物分散体 | |
KR20170052588A (ko) | 코팅 적용을 위한 낮은 voc 및 높은 고체 플루오로폴리머 | |
US8362168B2 (en) | Aqueous fluorine-containing polymer dispersion | |
US5817419A (en) | Tetrafluoroethylene copolymer coating composition | |
CN109337093B (zh) | 聚四氟乙烯分散液及其制备方法 | |
US3986993A (en) | Fluorocarbon coating composition | |
JPWO2010104142A1 (ja) | 含フッ素シード重合体粒子の水性分散液の製造方法、および水性塗料組成物ならびに塗装物品 | |
CN109503749A (zh) | 一种聚四氟乙烯分散液及其制备方法 | |
CN107523153B (zh) | 一种不粘涂料用添加剂 | |
CN110499077A (zh) | 一种高强度高耐磨的不粘锅涂层 | |
US3075939A (en) | Method of preparing dispersions from blend of fluorine containing polymers | |
CN106046971A (zh) | 一种水性氟碳漆及其制备方法、应用 | |
US4105615A (en) | Interpolymers, method of preparing the same and emulsions thereof, and metal cans coated with the interpolymers | |
CN103087689B (zh) | 一种水基钻井液用抗高温降粘剂 | |
CN112322113A (zh) | 水性高硬度单组分清漆 | |
US20180371121A1 (en) | Fluoropolymer dispersion | |
EP3103836A1 (en) | Fluoropolymer with improved transparency | |
CN115260846B (zh) | 一种形成涂层的改性氟树脂水性分散液及其制备方法 |
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 |