Shanghai Daoqin Plastics Co., Ltd.

industry: water property coating material , property coating material, ink industry

一, coating material property can testing

原漆 property can testing is coating material packaging rear, 经运输, 储存, to use quality 状况. main/primary property can lower.

1, appearance

through 目测观察 coating material has delamination, 发浑, 变稠, 胶化, 结皮, and other phenomenon.

① delamination: coating material 经存放 can can delamination phenomenon, generally can use 刮刀检查, drop relatively soft, use 刮刀容 easy 插入, 沉淀层容 easy by heavy new dispersion, coating material can use.

②结皮: alcohol acid, aldehyde, 天然油脂 and other coating material 经常会 generate 结皮, 结皮层无 method use, will its remove rear lower can use, use 时应搅拌 uniform.

③变稠, 胶化: can or add amount dilute agent use; can dispersion formed positive 常状态, coating material can use.

2, density

in temperature degree lower, material mono 位体积 weight.

3, fine degree

即 coating material solid material fine small degree. fine degree for formed film quality, film gloss, resistant property, coating material stability property has very large effect/influence. 但也不 is fine good, separation fine small effect/influence film force.

4, degree

table/sheet 示流体 in outer force function lower flow and deformation features project, is for tool has resistant flow internal retardant force amount degree, inner friction coefficient. testing methods has:

①流出 method: suitable for transparent and low degree testing. through in 一定容积 container inner time table/sheet coating material degree.

②落球 method: utilizing solid material in liquid in flow speed degree liquid 体 黏 degree.

③ bubbles method: utilizing gas in liquid in flow speed degree coating material degree, suitable for transparent 清漆.

5, volatile content content

不挥发 content is solid content, is coating material separation in 经 施工 rear lower formed is dry coating film separation, it content high low for formed film quality and coating material use value has very large 关系. is decrease/reduce has machine material for ring 境 污染, production high solid separation coating material is coating material production 厂商努 force direction 之一. commonly used methods is: will coating material in temperature degree lower add hot 烘烤, drying rear material and Sample quality comparison, separation table/sheet 示.

6, low temperature stability property

main/primary used for combined formed resin emulsion is material water property 漆. in cold 冻, melt dry rear, still can maintain has property can, tool has melt stability property.

二, coating material property can testing

coating material has through 施工才 can function. coating material property can, will coating material coating in upper 开始至形 formed film is 止, main/primary property can lower:

1, property

according to methods different, property separation is coating property, spray coating property, coating property, coating material in use 刷, 喷, methods 施工时, easy 施工, also can to coating film very fast 流平, has 流挂, 起皱, shrink 边, color or and other phenomenon.

2, drying time

coating material drying process according to coating film material property 状, main/primary is degree process separation is different stage/phase. upper separation is surface drying, drying and full drying stage/phase.

① table/sheet dry time: 乳胶漆 in 25℃ degree normal temperature lower, table/sheet dry time is 2 small 时, commonly used 吹棉球 method, method and other testing.

②实际 drying time: 乳胶漆 in 25℃ normal temperature lower,实际(完 full) drying time is 7天, commonly used pressure method, pressure method, sheet/slice method and thick drying method and other testing.

3, coating rate

coating rate is mono quality or coating material in positive 常施工情况 lower to coating film thick degree or resistant scratch 洗次数时 mono coating 布面积. mono is ㎡/㎏ or ㎡/L.

4, property

指 coating material in rear, coating film formed 平坦而 light slip surface can force. coating film is heavy force, surface force and force comprehensive 效果.

5, property

liquid coating material coating in material surface upper, heavy force effect/influence, separation wet film surface easy has toward lower 流坠, formed upper thin, lower thick or heavy formed semi 球形, 波纹状 phenomenon. formed this causes main/primary is coating material flow features 不适宜, wet film thick and other.

6, coating film thick degree

coating film thick degree separation wet film thick degree and dry film thick degree, wet film thick degree use and 梳规测定, dry film thick degree using/adopting magnetic property method and machine method 进行, coating film thick degree usually using/adopting mm is mono 位计核乳胶漆 thick degree.

7, cover/cap force

color uniform coating in material surface, through coating film for light absorption, and dispersion 射, make color again 呈现出 can force is cover/cap force. use cover/cap mono 位面积 需 most small coating material use amount （g/㎡） table/sheet cover/cap force.

8, can use time

main/primary for di separation or more separation coating material can use time, 即各组 separation in container in mixed combined rear 放置规定 time rear still can positive use.

三, coating film property can testing

1, coating film appearance

in inner standards lower made 备 样 sheet/plate drying rear, in light lower 肉眼观察, 检查漆 film has defect 如刷痕, pellets, 起泡, 起皱, shrink and other, and standards sheet/plate comparison.

2, gloss

light 线照射 in slip surface upper, separation 反射, separation internal generate 折射. light light strong/high and light light strong/high ratio value is rate. film gloss is film surface will in its upper light toward direction injection shot can force, 也称镜面 gloss degree. rate large, gloss high.

3, property

main/primary is for machine, high grade and other coating film decoration property and other grade 评定.

4, color

color is types 视觉, is different long light 刺激人 眼睛之 rear, in large in 引起 反映. therefore, coating film color is 由照射 light 源, coating film and 人眼决定. due to to color color can force and conditions and other factors made, can 避免会 has is 误差.

5, hardness

hardness is film for function its upper hardness relatively large material retardant force. coating film hardness methods has retardant hardness method, hardness method and pressure hardness method. in this main/primary introduction hardness method. hardness method is in film surface use hard material coating film hardness. commonly used is hardness. can 手工操 as, can device testing.

6, impact strong/high degree

也称 resistant impact property, is use testing coating film in high speed heavy force function lower resistant deformation cracking, 不脱落 can force. it comprehensive coating film flexibility property and for 底材 附 force. can 按规定 using/adopting impact experiment/testing 仪进行测定.

7, flexibility property

当漆 film outer force function bending 时, performance elastic property, property and force and other comprehensive property can is flexibility property. using/adopting flexibility property device 测定.

8, force

coating film for surface material and chemical function generate combined force 总称. methods has method, method and method. method is use tool 纵横交叉切割间距1mm 格子, 格子数 is 5×5, rear according to 规定 评 grade standards separation grade, 0 grade most good, 5 grade most 差.

9, wear resistance

coating resistant machine abrasion loss can force, is coating film hardness, force and inner poly force comprehensive 体现. main/primary used for 路标漆, sheet/plate testing.

10, heavy coating property and 面漆配 sleeve/set property

heavy coating property is in coating film surface use coating material again coating difficult easy degree and 效果. experiment/testing is in drying rear film upper 按规定进行打 abrasion rear, 按规定 methods coating types coating material, in product requirements thick degree lower, coating difficult easy degree, coating rear for light coating film 状况, in time drying rear coating film has defect. 面漆配 sleeve/set property is 底漆 测定 project, its and methods and heavy coating property versus 似.

11, resistant property

测定 coating in use 期间经反复洗刷 remove material versus for abrasion property. especially is inner coating material, easy by 弄脏, need scratch 洗, resistant property is this type of property can indicators.

12, lightfast property

coating film to light 线照射 rear maintain its color, gloss and other optical property can can force is resistant light property. can in light property, color property, resistant yellowing property and other 方面进行 testing.

①保 light property, color property: will made good sheet/plate cover/cap separation, in day light or light lower 照射一定 time rear, comparison 照射部 separation and 未照射部 separation gloss and color, can to its maintain can force.

② resistant yellowing property: will Sample coating abrasion 砂玻璃 upper, drying rear 放入装 has saturated and acid solvent liquid drying device inner, time rear, color 三刺激 value X, Y, Z, rear 计算泛黄程 degree value D.

13, resistant water property

resistant water property methods has normal temperature water method, water method, 40℃恒 temperature flow water method and other. using/adopting is normal temperature water method.

14, resistant property

usually use wet or in water in add amount powder scratch coating material surface material degree, is resistant property.

15, also has resistant salt water property, chemical resistant product property, resistant solvent agent property, resistant wet property, resistant large gas aging property and other.