1、 Ll18 3 iyvVol .18 No .31996 M9Journal of Chongqing Jianzhu University Sep .1996 :p 0 kZE赵纯兰( iyv$ S“630045)K1暴露在大气中的外墙涂料受紫外线一热,雨水及空气中降尘作用使其保护功能和装饰功能受到破坏, 最终失去使用价值。本文根据重庆地区酸沉降危害严重的特点,研究了该地区所使用的外墙涂料耐候性的测试方法。1oM外墙涂料, 耐候性, 附着强度, 色差mEs |TU561.62l :1995-03-06uB . o,1944 M 3, =SE1 S “ TB r ap :p 、“ ! 0 0a
2、, s 7A U 0,y7 aR i u P。M7,p g 0 ? z。 kZEQ,Tr。TV , u,v p 4Y1“ YA。3.2 A :p Y ; u, A :p 1 、 # ; 0Y。 F kTV : 、 pH, ; i, kqT HW,p “ / y(V6)。 Ap 4Y9v(V7、V8)。, i u z S O2-4,NcNO-3 、Cl-、F-、NH+4 0, 140 iyv18 pH2 。 Tp z e ? ,v A iVp :8,7 :8 = 3 ?iVp v , / : pW ,A , ( )? 3Q, 3 _:2(3CaO SiO2)+6H2O 3CaO 2SiO2 3H
3、2O +3Ca(OH)2 (1)2(2CaO SiO2)+4H2O 3CaO 2SiO2 3H2O +Ca(OH)2 (2)V6 (R)T(%)HWp b c d e f g i jpH2.07h 41.4 35.6 29.4 37.4 35.8 28.9 35.1 31.621h 43.5 38.3 33.1 42.2 40.0 36.9 43.5 37.935h 48.2 44.5 36.9 46.0 44.2 43.0 50.0 46.0pH4.07h 33.4 17.8 21.1 27.7 27.4 23.0 20.2 21.621h 36.0 25.6 24.8 30.0 31.6
4、27.0 28.7 27.435h 39.2 31.0 28.4 33.7 33.7 32.9 33.0 35.8pH5.67h 16.0 12.0 12.8 15.6 16.8 13.0 15.9 16.821h 19.0 14.2 19.3 19.3 20.0 17.0 20.3 21.035h 23.0 19.9 23.5 24.1 25.3 22.1 26.6 25.3 l b =,? 3 Q, 3 。 _ 0i, P 9F, Ca2+ i9v, ACa2+ S O2-4T 3 F _ ; T 3 ; , Pp W“ 。T HW99/p ,Cx, 7 4):CaCO3(s)+H+(aq
5、)Ca2 +(aq)+HCO-3(aq) (3)CaCO3(s)+S O2-4 (aq)+2H+(aq)+H2O CaSO4 2H2O(s)+CO2 (4)Ca(OH)2 +H2SO4 CaSO4+H2O (5) F k, i u L M,7 O|SSp 0 、 0 0 kZE“BZE, HW200 1200l H 7 35l H。vv ki y kT。 % kTQ,ZE M L Vr, kT V1。 p d 、jPH4.0 7l H, L5)1),“Hq/,p f 、g 21l H M , 35l H #4 M,“ / q9 p ,V p 0 A ? z。9 A, k E :p ,p g F
6、 (、 A) z, a3 uB : :p 0 kZE141V8 48 T(pH4.0)HWp b c d e f g i j7h 21h 35h u P。V7 TppH2.0 pH4.0 pH5.67h 21h 35h 7h 21h 35h 7h 21h 35hb 4 4 1 3 2 2 4 3 3c 3 2 1 3 2 2 4 3 2d 1 2 1 1 1 1 2 1 1e 2 1 1 2 1 1 4 3 1f 5 3 2 5 5 4 5 5 5g 5 4 3 5 5 4 5 5 5i 3 2 2 2 2 2 4 3 2j 1 1 1 1 1 1 1 1 14 1) F v :p 0 3 k
7、1ZE。2)p “ 、 4)M N :p 01 =, N H,| = In。3)ZE“ a u :p k。 ID1uB . i yp Y. i S1993(6)2 .y : S K. v ) i92 “(302)3 x.y k. 2198843.y .Sy19845 SSES. A :p GB9755-88,SS,19936Sy .y L m(986-990),Sy1987(编辑:王秀玲)142 iyv18 The Research on the Methods of WeatherabilityTest of Outer-Wall PaintZhao Chun -lan(Dept .of N
8、atural Science,CJU)Abstract Owing to the fact that the outer -wall paint , exposed to the weather , is subjected tofollowing attacks , such as ultraviolet ray , heat , rainwater and dust deposit in the air , the protectiveand decorative actions of outer-wall paint are damaged , and eventually the paint loses its practicaluse.In this paper, due to the fact that the acid deposit injury is very serious in chongging region ,themethods of weatherability test applied for outer -wall paint in the region ,are studied .Key Words outer -wall paint ,weatherability ,adhesive strength ,chromatism
