CN104277598B - 一种高遮盖力水性铝银浆及其制备方法 - Google Patents

一种高遮盖力水性铝银浆及其制备方法 Download PDF

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CN104277598B
CN104277598B CN201410574950.5A CN201410574950A CN104277598B CN 104277598 B CN104277598 B CN 104277598B CN 201410574950 A CN201410574950 A CN 201410574950A CN 104277598 B CN104277598 B CN 104277598B
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董前年
朱双单
李国旺
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HEFEI SUNRISE ALUMINIUM PIGMENTS Co Ltd
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    • 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
    • C09D17/00—Pigment pastes, e.g. for mixing in paints
    • C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
    • C09D17/006—Metal
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/62—Metallic pigments or fillers
    • C09C1/64—Aluminium
    • C09C1/648—Aluminium treated with inorganic and organic, e.g. polymeric, compounds
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
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    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/10—Treatment with macromolecular organic compounds
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/12—Treatment with organosilicon compounds

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Abstract

本发明公开了一种高遮盖力水性铝银浆，其特征是由下述重量份的原料组成：微米级片状铝粉40-60，高岭土1-2，凹凸棒土1-2，正硅酸乙酯10-12，硅酸钠0.1-0.2，硼酸0.05-0.1，草酸0.1-0.2，硅烷偶联剂A-151？0.2-0.4，二甘醇0.5-1，聚二甲基二烯丙基氯化铵4-6，六偏磷酸钠0.4-0.6，醋丙乳液1-2，苯丙乳液1-2，羧甲基纤维素6-8，助剂8-10。本发明的铝银浆具有高遮盖力和较好的金属感，用量少，成膜效果好，在水性涂料体系中具有高分散性，且涂层粘附性好，涂装效果好。

Description

一种高遮盖力水性铝银浆及其制备方法
技术领域
本发明涉及金属颜料领域，具体涉及一种高遮盖力水性铝银浆及其制备方法。
背景技术
铝银浆主要由铝粉、溶剂、助剂构成，经过特殊加工工艺和表面处理的颜料，铝片表面光洁平整，与涂料体系匹配性优良，具有优异的光反射能力和金属光泽，漆膜具有“随角异色效应”，装饰效果美观。
随着工业化的发展和环境的恶化，保护环境已经成为全人类共同面对的课题。传统溶剂型铝银浆含有大量VOC（挥发性有机物），在涂装过程中挥发到大气中，对大气环境造成污染。因此，水性铝银浆代替溶剂型产品已经成为新的趋势。然而铝粉在水性体系中容易发生化学反应，因此，铝粉的表面处理至关重要。
发明内容
本发明的目的是提供一种涂层粘附性能好、相容性高的高遮盖力水性铝银浆。
本发明是通过以下技术方案实现的：
一种高遮盖力水性铝银浆，其由下述重量份的原料制成：
微米级片状铝粉40-60，高岭土1-2，凹凸棒土1-2，正硅酸乙酯10-12，硅酸钠0.1-0.2，硼酸0.05-0.1，草酸0.1-0.2，硅烷偶联剂A-1510.2-0.4，二甘醇0.5-1，聚二甲基二烯丙基氯化铵4-6，六偏磷酸钠0.4-0.6，醋丙乳液1-2，苯丙乳液1-2，羧甲基纤维素6-8，助剂8-10；
助剂由下列重量份的原料制成：
明胶1-2，钠基蒙脱土1-2，司盘800.2-0.4，柠檬酸0.4-0.6，椰油酰基谷氨酸钠0.05-0.1，葡萄糖酸钠0.2-0.4，水20-40；
助剂的制备方法：
将明胶、柠檬酸和葡萄糖酸钠加入水中，60-80℃、800-1000r/min搅拌至完全溶解，加入司盘80、椰油酰基谷氨酸钠和钠基蒙脱土，40-60℃、1200-1500r/min搅拌15-30min，过滤后将滤饼真空干燥，研磨至1000-1500目，即得。
一种高遮盖力水性铝银浆的制备方法，包括以下步骤：
（1）配制氨水、蒸馏水和乙醇的混合溶剂作为A组分，用乙醇稀释正硅酸乙酯作为B组分；将微米级片状铝粉加入适量无水乙醇中，加入硅烷偶联剂A-151，氮气保护下搅拌0.5-1h后，以1-2滴/s的滴加速度同时分别滴加A组分和B组分，边滴加边搅拌，滴加完毕后40-45℃反应6-8h，抽滤后用无水乙醇洗涤，真空干燥，所述的A组分中氨水、蒸馏水和乙醇的重量比=1:2:5，所述的氨水浓度为25%，所述的B组分中乙醇和正硅酸乙酯的重量比=1:2；
（2）在反应容器中加入适量0.5-1%碳酸钠溶液，加入聚二甲基二烯丙基氯化铵500-600r/min搅拌5-15min，再加入（1）中处理后的铝粉，同样转速下搅拌5-10min，过滤并将滤饼在适量0.5-1%碳酸钠溶液中超声波分散，加入羧甲基纤维素，500-600r/min搅拌5-10min，再加入高岭土、凹凸棒土和六偏磷酸钠同样转速下搅拌10-20min，过滤；
（3）在容器中加入（2）中得到的滤饼以及其余原料，于室温条件下400-600r/min搅拌15-30min后真空干燥，即得。
本发明的优点是：
1.通过配方和工艺的改进，使铝银浆具有具有高遮盖力和较好的金属感，用量少，成膜效果好；
2.通过表面修饰，在铝粉表面双层包覆二氧化硅和羧甲基纤维素，使铝粉在水性涂料体系中具有高分散性，且涂层粘附性好，涂装效果好。
具体实施方式
本发明非限定实施例如下：
实施例1
一种高遮盖力水性铝银浆，由下列重量(kg)的组分原料制备而成：
微米级片状铝粉50，高岭土1.5，凹凸棒土1.5，正硅酸乙酯11，硅酸钠0.15，硼酸0.08，草酸0.15，硅烷偶联剂A-1510.3，二甘醇0.6，聚二甲基二烯丙基氯化铵5，六偏磷酸钠0.5，醋丙乳液1.5，苯丙乳液1.5，羧甲基纤维素7，助剂9；
其中，助剂由下列重量（kg）的原料制成：
明胶1.5，钠基蒙脱土1.5，司盘800.3，柠檬酸0.5，椰油酰基谷氨酸钠0.08，葡萄糖酸钠0.3，水30；
助剂的制备方法：
将明胶、柠檬酸和葡萄糖酸钠加入水中，80℃、800r/min搅拌至完全溶解，加入司盘80、椰油酰基谷氨酸钠和钠基蒙脱土，60℃、1500r/min搅拌15min，过滤后将滤饼真空干燥，研磨至1000目，即得。
高遮盖力水性铝银浆的制备方法包括以下步骤：
（1）配制氨水、蒸馏水和乙醇的混合溶剂作为A组分，用乙醇稀释正硅酸乙酯作为B组分；将微米级片状铝粉加入适量无水乙醇中，加入硅烷偶联剂A-151，氮气保护下搅拌0.5h后，以1滴/s的滴加速度同时分别滴加A组分和B组分，边滴加边搅拌，滴加完毕后40℃反应8h，抽滤后用无水乙醇洗涤，真空干燥，所述的A组分中氨水、蒸馏水和乙醇的重量比=1:2:5，所述的氨水浓度为25%，所述的B组分中乙醇和正硅酸乙酯的重量比=1:2；
（2）在反应容器中加入适量1%碳酸钠溶液，加入聚二甲基二烯丙基氯化铵600r/min搅拌5min，再加入（1）中处理后的铝粉，同样转速下搅拌10min，过滤并将滤饼在适量1%碳酸钠溶液中超声波分散，加入羧甲基纤维素，600r/min搅拌5min，再加入高岭土、凹凸棒土和六偏磷酸钠同样转速下搅拌10min，过滤；
（3）在容器中加入（2）中得到的滤饼以及其余原料，于室温条件下400r/min搅拌30min后真空干燥，即得。
经检验，本实施例的铝银浆具有高白亮度、高遮盖力，与水性涂料体系相容性好、涂层粘附性好，涂膜表面平整。

Claims (1)

1.一种高遮盖力水性铝银浆，其特征在于其由下述重量份的原料制成：
微米级片状铝粉40-60，高岭土1-2，凹凸棒土1-2，正硅酸乙酯10-12，硅酸钠0.1-0.2，硼酸0.05-0.1，草酸0.1-0.2，硅烷偶联剂A-1510.2-0.4，二甘醇0.5-1，聚二甲基二烯丙基氯化铵4-6，六偏磷酸钠0.4-0.6，醋丙乳液1-2，苯丙乳液1-2，羧甲基纤维素6-8，助剂8-10；
所述助剂由下列重量份的原料制成：
明胶1-2，钠基蒙脱土1-2，司盘800.2-0.4，柠檬酸0.4-0.6，椰油酰基谷氨酸钠0.05-0.1，葡萄糖酸钠0.2-0.4，水20-40；
所述助剂的制备方法是：
将明胶、柠檬酸和葡萄糖酸钠加入水中，60-80℃、800-1000r/min搅拌至完全溶解，加入司盘80、椰油酰基谷氨酸钠和钠基蒙脱土，40-60℃、1200-1500r/min搅拌15-30min，过滤后将滤饼真空干燥，研磨至1000-1500目，即得。
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