2019-03-22
一.簡介
CPE是氯化聚乙烯(chlorinated polyethylene)的縮寫,是由高密度聚乙烯經(jīng)過氯化后的產(chǎn)物,外觀為白色細小顆粒。
二、CPE的性能
1、優(yōu)異的耐老化性,可在惡劣氣候和苛刻環(huán)境下使用,對臭氧有充分的抵抗性。
2、優(yōu)異的難燃性,無自燃性。
3、優(yōu)異的低溫韌性,可在-20℃保持柔韌性,適宜做UPVC制品的抗沖改性劑。
4、優(yōu)異的耐化學(xué)藥品性,對多數(shù)化學(xué)藥品表現(xiàn)惰性,抗各種酸堿的腐蝕。
5、良好的加工性能,易于加工成型。
6、極好的使用安全性,不會對人體及周圍環(huán)境產(chǎn)生不良影響。
7、優(yōu)異的穩(wěn)定性。
三、質(zhì)量指標(biāo)
指標(biāo) |
CPE225A |
CPE130A |
CPE135A |
CPE140A |
CPE135C
|
氯的質(zhì)量分?jǐn)?shù), % |
25±2 |
30±2 |
35±2 |
40±2 |
35±2
|
熔融焓,J/g |
<=5.0 |
<=2.0 |
<=2.0 |
<=2.0 |
<=5.0 |
揮發(fā)物的質(zhì)量分?jǐn)?shù),% |
<=0.4 |
<=0.4 |
<=0.4 |
<=0.4 |
<=0.4 |
篩余物(0.9mm篩孔),% |
<=2.0 |
<=2.0 |
<=2.0 |
<=2.0 |
<=2.0 |
雜質(zhì)粒子數(shù),個/100g |
<=50 |
<=50 |
<=50 |
<=50 |
<=50 |
邵爾硬度,shoreA |
<=80 |
<=70 |
<=65 |
<=70 |
<=70 |
門尼粘度,Ml(1+4) |
?? - |
??? - |
- |
- |
- |
拉伸強度,MPa |
?? >=8.0 |
?? >=8.0 |
?>=8.0 |
?>=8.0 |
?>=8.0 |
灰分的質(zhì)量分?jǐn)?shù),% |
<=4.5 |
<=4.5 |
<=4.5 |
<=4.5 |
<=4.5 |
指標(biāo) |
CM225B |
CM130B |
CM135B1 |
CM135B2 |
CM135B3
|
CM140B |
氯的質(zhì)量分?jǐn)?shù), % |
25±2 |
30±2 |
35±2 |
35±2 |
35±2
|
40±2
|
熔融焓,J/g |
<=5.0 |
<=2.0 |
<=2.0 |
<=2.0 |
<=2.0 |
<=2.0 |
揮發(fā)物的質(zhì)量分?jǐn)?shù),% |
<=0.4 |
<=0.4 |
<=0.4 |
<=0.4 |
<=0.4 |
<=0.4 |
篩余物(0.9mm篩孔)% |
- |
- |
- |
- |
- |
_ |
雜質(zhì)粒子數(shù),個/100g |
- |
- |
- |
- |
- |
- |
邵爾硬度,shoreA |
<=75 |
<=70 |
<=60 |
<=60 |
<=60 |
<=70 |
門尼粘度,Ml(1+4) |
?<=140 |
<=130?? |
50-60 |
60-70 |
70-80 |
<=120 |
拉伸強度,MPa |
?? >=6.0 |
?? >=6.0 |
? >=6.0 |
? >=6.0 |
? >=6.0 |
?>=6.0 |
灰分的質(zhì)量分?jǐn)?shù),% |
<=4.5 |
<=4.5 |
<=4.5 |
<=4.5 |
<=4.5 |
<=4.5 |
備注:CM135B和CM140B可根據(jù)客戶的要求,生產(chǎn)不同門尼粘度的產(chǎn)品。
四、CPE的主要用途
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