Polyester Non-woven/PET Film Flexible Laminates

DM Dacron/Mylar

DMD Dacron/Mylar/ Dacron

DMD-f Dacron/Mylar/ Dacron class F adhesive

DMDM Dacron/Mylar/ Dacron/Mylar

D-Dacron-Polyester non-woven fabric

M-Mylar-Polyester(PET) film IEC 60674 Standard

 

Brief Introduction

DM is a two-flexible composite material. It is composited with Polyester non-woven fabric and Polyester film.

DMD consists of two layers of high density polyester non-woven fabric and a single layer of polyester film in the center.

DMDM is four layers flexible laminates.

 

Product Features:

-Thermals class:

DM DMD DMDM B class insulation(130°C)

DMD-F F class insulation(155°C)

-Shows excellent electric insulating properties, heat resistance, mechanical strength, high tensile strength and impregnated properties. It enables easy processing on automatic machines.

 

Product Applications:

As slot, interturnand liner insulation for electric generators and other electric appliances.

Used for slot closures or covers, overhang, interphase and layer insulations for Dty-type transoformers.

 

Available

1:Available thickness and width

DM 0.15/0.17/0.19/0.25/0.32/0.37mm

DMD 0.088/0.15/0.17/0.20/0.23/0.25/0.27/0.30/0.32/0.37/0.45mm

DMD-F 0.088/0.15/0.17/0.20/0.23/0.25/0.27/0.30/0.32/0.37/0.45mm

DMDM 0.25/0.30/0.35mm

Normal width:1000mm

2.Strips available on requst.the minimum width is 5mm

3.Inner diameter:76mm(3")plastic core.

4.About 55kg/roll

5.Color:DM DMD DMDM  White color

DMD-F: Normal color is light pink and green. Special color can be provide on request.

 

2.Technical parameters of the product

S/N	Name of the targets			Unit	Target values
1	Nominal thickness			㎜	0.15	0.20	0.25	0.30	0.35
2	Allowable deviation on thickness individual values			㎜	±0.02 ±0.03	±0.03 ±0.04	±0.04 ±0.05	±0.03 ±0.06	±0.06 ±0.07
3	Nominal quota and allowable deviation			g/m2	150±22	210±32	260±39	310±46	390±58
4	Width			㎜	≥980
5	Tensile strength	Lengthwise	Before bending	N/10㎜	≥80	≥120	≥150	≥170	≥200
			After bending		≥80	≥105	≥130	≥150	≥180
		Crosswise	Before bending		≥80	≥105	≥130	≥150	≥180
			After bending		≥70	≥95	≥120	≥130	≥160
6	Elongation rate	Lengthwise	Before bending	%	≥10	≥10	≥10	≥5	≥5
			After bending		≥10	≥10	≥10	-	-
		Crosswise	Before bending		≥10	≥10	≥15	≥5	≥5
			After bending		≥10	≥10	≥15	-	-
7	Volume resistivity	Under normal state		Ω.m	≥1.0×109
		155±2℃			≥1.0×107
		After moisture			≥1.0×107
8	Breakdown Voltage	Under normal state		kV	≥8.0	≥9.0	≥10.0	≥12.5	≥15.0
		155±2℃			≥7.5	≥8.0	≥9.0	≥10.0	≥12.0
9	Bonding strength at normal state			-	No lamination
10	Bonding strength at thermal state （180±2℃10min）			-	No lamination、no bubbles、no flow
11	Long-term heat resistance			℃	≥155