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HDPE Geomembrane

HDPE Geomembrane

HDPE geomembrane with rough surface for environmental protection (gh-2t1 / gh-2t2 type)

Number of hits:99 Enter Time:2019-11-26 15:45:31

产品介绍

Product introduction

由特殊配方的原生树脂,采用特殊平挤工艺生产的单面或双面具体有均匀高度柱点外观的高密度聚乙烯(HDPE)土工膜。

 

Native resin by a special formula, the use of special flat extrusion process of single or double concrete has high column uniform appearance of high density polyethylene (HDPE) geomembrane.

 

产品特点

Product features

 

柔韧性好,具有很高的防渗系数;

Flexibility is good, has the very high seepage coefficient;

 

耐热耐寒性好,使用环境温度范围广(-70°C —110°C)

Heat resistance good cold resistance, using the environment temperature range (70 ° C to 110 ° C)

 

 

应用范围

Range of application

 

  市政环保工程,垃圾填埋处理工程,冶金石化行业防渗、防腐工程,石油化工防渗防污工程,尾矿处理、赤泥堆防渗防污工程,电厂灰坝防渗防污防腐工程等。

 

Municipal environmental protection engineering, landfill treatment engineering, metallurgy and petrochemical industry anti-seepage, anticorrosive engineering, petroleum and chemical seepage control anti-fouling engineering, tailings disposal, red mud heap of anti-seepage anti-fouling engineering, coal ash dam seepage control anti-fouling corrosion protection engineering, etc.

 

 

 

产品执行标准

Product standards

 

GB/T17643 - 2011(GH -2T1型、GH - 2T2型)《土工合成材料 聚乙烯土工膜》

GB/T17643-2011 "Geosynthetic Materials Polyethylene Geomembrane"

 

CJ/T234 - 2006 《垃圾填埋场用高密度聚乙烯土工膜》

CJ/T234-2006 "High Density Polyethylene Geomembrane for Landfills"

 

GRI - GMB 美国现行标准

GRI-GM3 US current standard

 

 

 

 

 

技术参数

项目

指标

厚度mm

0.75

1.00

1.25

1.50

2.00

2.50

3.00

1

密度g/cm3

≧0.940

2a

毛糙厚度

≧0.25

3

拉伸屈服强度(纵、横向)N/mm

≧11

≧15

≧18

≧22

≧29

≧37

≧44

4

拉伸断裂强度(纵、横向)N/mm

≧8

≧10

≧13

≧16

≧21

≧26

≧32

5

屈服伸长率(纵、横向)%

≧12

6

断裂伸长率(纵、横向)%

≧100

7

直角撕裂负荷(纵、横向)N

≧93

≧125

≧160

≧190

≧250

≧315

≧375

8

抗穿刺强度N

≧240

≧320

≧400

≧480

≧640

≧800

≧960

9

拉伸负荷应力开裂(切口恒载位伸法)

300

10

炭黑含量%

2.0~3.0

11

炭黑分散性

10个数据中3级不多于1个,4级、5级不允许

12b

氧化诱导时间(OIT)min

常压氧化诱导时间≧100

高压氧化诱导时间≧400

13

85℃热老化(90d后常压OIT保留率)%

≧55

14b

抗紫外线(紫外线照射1600h后OIT保留率)

≧50

注:表中没有列出厚度规格的技术性能指标要求按照内插法执行

a序号2项指标在10次测试中,8次的结果应大于0.18mm,最小值应大于0.13mm

b序号13、14两项指标的常压OIT(保留率)和高压OIT(保留率)可任选其一测试

 

Technical parameters

 

No

Item

standard

Thickness mm

0.75

1

1.25

1.5

2

2.5

3

1

Density g/cm3

≥0.940

2

 Thickness of the coarse

≥0.25

3

Tensile yield strengthlongitudinal and transverseN/mm

≥11

≥15

≥18

≥22

≥29

≥37

≥44

4

Tensile strength at breaklongitudinal and transverseN/mm

≥8

≥10

≥13

≥16

≥21

≥26

≥32

5

Yield elongationlongitudinal and transverse%

≥12

6

Elongation at breaklongitudinal and transverse%

≥100

7

Right angle tear loadlongitudinal and transverseN

≥93

≥125

≥160

≥190

≥250

≥315

≥375

8

Anti puncture strengthN

≥200

≥270

≥335

≥400

≥535

≥670

≥800

9

Tensile load stress crackingIncision constant load extension method

300

10

Carbon black content%

2.0~3.0

11

Carbon black dispersion

In 10 dates, level 3 shall no more than 1, level 4 and level 5 is not allowed

12

Oxidation induction timeOITmin

Oxidation induction time under normal pressure≥100

Oxidation induction time under high pressure≥400

13

85 heat agingOIT Rretention rate after 90 days under  normal pressure%

≥55

14

Anti-UVOIT Rretention rate after 1600h Ultraviolet radiation

≥50

Note: If the thickness specification not listed in the table, its technical index shall be according to interpolation method

Indicator 2 was tested 10 times, of which the results of 8 times were greater than 0.18mm and the minimum number was greater than 0.13mm.

You can choose each one to test of OIT Rretention rate under normal pressure or high pressure of No.13 and 14listed in the table  


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