求助怎么算PVC

心似狂想

怎么算涂料的PVC

wencxq

很容易的方法啊。
Definition The volume of a dry paint film is composed of the volume of the binder
and the volume of the pigments and extenders.
The pigment volume concentration (PVC) is the ratio of the volume
of pigment (including extender) to the volume of the total non-volatile
matter (ie, pigment and binder) present in the coating.
The PVC is a very useful concept that can be used to indicate the
mechanical properties of coatings such as durability.
Calculation PVC = VP x 100 [%]
VP + VB
VP = m [ml]
rP
VB = m x NV [ml]
100 x rB
PVC = Pigment volume concentration [%]
VP = Volume of pigment (including extender) [ml]
VB = Volume of binder [ml]
rP = Density of the pigment or extender [g/ml]
rB = Density of the binder [g/ml]
m = Mass of pigment or binder used [g]
NV = Non-volatile content of binder [%]
The densities of binders, pigments and extenders can be found in
suppliers’ technical information. If they are not quoted, they must be
determined analytically.
ISO 2811, DIN 53217 (and BASF test method PM/ED 008) deal with the
determination of binder density; ISO 787 part 10, deals with the density of
pigments and extenders.
Additives can be ignored.
Example Formulation of a matt architectural finish based on Acronal® 290 D
Pigment/binder ratio: approx. 3 : 1
PVC: approx. 51%
Solids content: approx. 65%
Density: approx. 1.5 g/ml
Parts by wt. Density
[g/ml]
Water 137
Pigment Disperser A 3
Sodium polyphosphate (25 % soln.) 4
Ammonia, conc. 2
Preservative 3
Methyl cellulose, 20 000 mPa · s, 2 % soln. 100
Mineral spirit (180 – 210 °C) 13
Lusolvan® FBH 7
Rutile titanium dioxide 190 4.2
Calcite, 5 μm 240 2.7
Talc, 5 μm 50 2.7
Lumiten® N-OC 30 10
Defoamer 3
Acronal 290 D, 50% 320 1.1
1000
Calculation of the binder volume (in terms of solids)
VB = 130200 xx 15.01 = 145.5 [ml]
Calculation of titanium dioxide volume
VP = 149.20 = 45.2 [ml]
2
Calculation of calcite volume
VP = 224.70 = 88.9 [ml]
Calculation of talc volume
VP = 25.07 = 18.5 [ml]
Volume of the binder = 145.5 ml
Volume of the pigment = 152.6 ml
PVC = 152.165 +2 .1645.5 x 100 = 51.2 [%]
Densities of a selection of binders, pigments and extenders
Product group Tradename Density
[g/ml]
Binders Acrylic resins (externally crosslinking) Luprenal® 1.0
Aldehyde and ketone resins Laropal® 1.1
Alkyd resins 0.9 –1.1
Chlorinated rubber 1.6
Epoxy resins 1.2
Urea resins Plastopal® 1.2
Melamine resins Luwipal® 1.0
Cellulose nitrate 1.6
Phthalate resins (oil-free) Phtalopal 1.0 –1.2
Polyacrylates (water-reducible) Luhydran® 1.0
Polyacrylates Acronal (dispersions) 1.1
Acronal (solutions) 1.0
Suprapal® 1.0
Polyamides Ultramid® 1C 1.1
Polyesters (unsaturated) Ludopal® 1.1
Polyvinyl ether Lutonal® 1.0
Vinyl chloride copolymers Laroflex® 1.2
Lutofan® 1.1
Vinylidene chloride/acrylic copolymers Diofan® (dispersion) 1.6
Extenders Barium sulfate (precipitated) 4.1– 4.5
Blanc fixe 4.4
Barium sulfate (barytes) 4.0 – 4.5
EWO 4.3
Schwerspat 4.3 – 4.4
Pumice powder 0.6
Calcite 2.7 – 2.8
Carolith 2.7
Durcal 2.8
Hydrocarb 2.7
Microcarb 2.7
Millicarb 2.7
Omyacarb 2.7
Calcium carbonate (synth.)
Socal 2.7
Cristobalite 2.4
Grenette 2.4
Dolomite 2.7 – 2.9
Microdol 2.9
Feldspar 2.6
Mica 2.8
Mica 2.8
Mikal 2.7
Plastorit 2.8
China clay 2.6
China Clay 2.6
Dorkafill 2.6
Diatomite Celite 2.2
3
Product group Tradename Density
[g/ml]
Chalk 2.7
Omyalite 2.7
Polycarb 2.7
Gypsum 2.4
Slate powder 2.8
Silicon carbide Silcar 2.6
Silicon dioxide Aerosil® (Degussa) 2.2
Matting agent HK 2.0
Matting agent OK 1.9
Quartz flour 2.6
Quartz sand 2.6
Silcasil 2.0
Talc 2.7 – 3.5
Finntalc 2.8
Micro Talc 2.9
Mikro Talkum 2.7
Metallic pigments Aluminium bronze 2.6
Gold bronze 7.5 – 8.5
Copper bronze 8.9
Zinc dust 7.6
Pigments Chromium oxide green 5.1
Micaceous iron oxide 4.5 – 4.8
Iron oxide brown 4.2 – 4.8
Iron oxide yellow 4.0
Iron oxide red 4.6 – 5.1
Iron oxide black 4.5
Heliogen® Blue 1.6
Heliogen Green 2.0
Lithol® Fast Yellow 1.8
Lithopone 4.1– 4.3
Ochre 2.1– 2.8
Paliogen® Yellow 1.4
Paliogen Red 1.6
Carbon black 1.7 –1.8
Anatase titanium dioxide 3.9
Rutile titanium dioxide 4.2
Umber 2.5 – 3.7
Zinc oxide 5.6
Zinc phosphate 3.2
Plasticizers Polymeric adipate Palamoll® 1.1
Adipate Plastomoll® 0.9
Urea resin Plastigen® 1.1
Phthalate ester Palatinol® 1.0
Note The above test method has been exclusively designed for BASF’s own
internal use. We have taken existing methods as the basis for tests
that meet our requirements. The use of this test method outside our
organization is entirely at the user’s own risk and we cannot accept any
responsibility for any damage caused as a result. Any proprietary rights
should be respected. All rights reserved.

ATOM

格式不太对，可能会误导群众。

ATOM

http://www.coatu.com/bbs/viewthr ... 0&highlight=PVC

wjbxd

英文，吃力@