China 2022 China New Design Nomex Pet Flexible Insulation Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F manufacturers and Exporter

2022 China New Design Nomex Pet Flexible Insulation Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F

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Our purpose would be to offer good quality products at competitive price ranges, and top-notch support to clients around the whole world. We're ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for 6641 F Dmd, Copper Connector, SMC profile, Our professional technological team will be wholeheartedly at your services. We sincerely welcome you to definitely take a look at our website and enterprise and send out us your inquiry.

2022 China New Design Nomex Pet Flexible Insulation Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F Detail:

D279 is made from DMD and special epoxy heat resistant resin. It has the characteristics of long storage life, low curing temperature and short curing time. After being cured, it has excellent electrical properties, good adhesive and heat resistance.The heat resistance is Class F. It is also called as Prepreg DMD, pre-impregnaed DMD, flexible composite insulation paper for dry transformers.

D279 DMD(1)
D&F D279 pre-impregnated DMD

Product Features

D279 epoxy pre-impregnated DMD has excellent electrical properties, good adhesive and heat resistance.

Applications

D279 epoxy pre-impregnated DMD is used for layer insulation or liner insulation of low-voltage copper/ aluminum foil winding in dry-type transformers as well as slot insulation and liner insulation in Class B and F electric motors and electric appliances. It is also called as Prepreg DMD, Prepreg insulation composite paper for dry type transformers.

D279 epoxy prepreg DMD

Supply Specifications

Nominal width：1000 mm.

Nominal weight: 50±5kg /Roll.

The splices shall not be more than 3 in a roll.

Color: white or red color.

Appearance

Its surface should be flat, free of uneven resin and impurities affecting performances. While being de-coiled, its surface shall not be conglutinated each other. Free of such defects such as creases, bubbles and wrinkles.

Packing And Storage

D279 should be wrapped with plastic film then put in clean & dry carton

The storage life is 6 months at temperature of below 25℃ after leaving factory. If the storage duration is over 6 months, the product can still be used when being tested to be qualified. The product should be put and/or stored upright and keep away from fire, heat and direct sunshine.

Technical Performances

The standard performance values for D279 epoxy pre-impregnated DMD are shown in table 1 and the typical values are shown in table 2.

Table 1: Standard Performance value for D279 epoxy Prpreg DMD

No.	Properties	Unit	Stand values
1	Nominal thickness	mm	0.16	0.18	0.20	0.23	0.25
2	Thickness tolerance	mm	±0.030		±0.035
3	Grammage (for reference)	g/m²	185	195	210	240	270
4	Tensile strength (MD)	N/10mm	≥70		≥80		≥100
5	Dissolvable resin content	g/m²	60±15
6	Volatile content	%	≤1.5
7	Dielectric strength	MV/m	≥40
8	Shear strength under tension	MPa	≥3.0

Table 2: Typical performance values for D279 epoxy Prepreg DMD

No.	Properties	Unit	Typical values
1	Nominal thickness	mm	0.16	0.18	0.20	0.23	0.25
	Thickness tolerance	mm	0.010		0.015
2	Grammage (for reference)	g/m²	186	198	213	245	275
3	Tensile strength (MD)	N/10mm	100	105	115	130	180
4	Dissolvable resin content	g/m²	65
5	Volatile content	%	1.0
6	Dielectric strength	MV/m	55
7	Shear strength under tension	MPa	8

Application and Remarks

Recommended curing conditions

Table 2

Temperature（℃）	130	140	150
Curing time（h）	5	4	3

Production Equipment

We have two lines, the production capacity is 200T/month.

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We believe that long time period partnership is a result of top of the range, value added services, rich expertise and personal contact for 2022 China New Design Nomex Pet Flexible Insulation Paper - D279 Epoxy Pre-impregnated DMD for dry type trasnformers – D&F , The product will supply to all over the world, such as: New Delhi, Slovenia, Wellington, All our staffs believe that: Quality builds today and service creates future. We know that good quality and the best service are the only way for us to achieve our customers and to achieve ourselves too. We welcome customers all over the word to contact us for future business relationships. Our products are the best. Once Selected, Perfect Forever!

6641 F-Dmd Electrical Insulating Paper Composite Material