Antimony-free flame-retardant hot-melt adhesive film for FFCs and preparation method thereof

A technology of hot-melt adhesive film and wire rod, which is applied in the direction of heat-activated film/sheet, adhesive, film/sheet release coating, etc. It can solve the problems of inability to achieve flame retardant effect, insufficient flame retardant efficiency, and generation of corrosive gas.

Active Publication Date: 2019-09-27
广东莱尔新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing hot melt adhesive film for FFC wire uses bromine-antimony synergistic flame retardant to achieve the flame retardant effect of VW-1 required by FFC wire products, but this flame retardant system will produce corrosive gas and smok...

Method used

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  • Antimony-free flame-retardant hot-melt adhesive film for FFCs and preparation method thereof
  • Antimony-free flame-retardant hot-melt adhesive film for FFCs and preparation method thereof
  • Antimony-free flame-retardant hot-melt adhesive film for FFCs and preparation method thereof

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Embodiment Construction

[0033] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0034] The antimony-free flame-resistant FFC wire rod of the present embodiment uses the hot-melt adhesive film, as figure 1 As shown, it includes a PET insulating layer 1, a precoat layer 2 and an adhesive layer 3, and the precoat layer 2 is arranged between the PET insulating layer 1 and the adhesive layer 3, and the thickness of the adhesive layer 3 is less than the thickness of the PET insulating layer 1;

[0035] According to the percentage by weight, the raw materials of the adhesive layer 3 include: 25-35% saturated polyester resin A, 5-10% saturated polyester resin B, 5-10% saturated polyester resin C, 28-36% Flame retardant a, 6-12% flame retardant b, 0.5-1% curing agent and 12.5-14% balance;

[0036] The saturated polyester resin C is a DOPO phosphorous-modified flame-retardant saturated...

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Abstract

The invention discloses an antimony-free flame-retardant hot-melt adhesive film for FFCs and a preparation method thereof. The hot-melt adhesive film comprises a PET insulating layer, a pre-coating layer and an adhesive layer, wherein the pre-coating layer is disposed between the PET insulating layer and the adhesive layer, and the thickness of the adhesive layer is smaller than the thickness of the PET insulating layer; the adhesive layer comprises, by weight percentage, 25-35% of a saturated polyester resin A, 5-10% of a saturated polyester resin B, 5-10% of a saturated polyester resin C, 28-36% of a flame retardant a, 6-12% of a flame retardant b, 0.5-1% of a curing agent and 12.5-14% of a balance material; the saturated polyester resin C is a DOPO phosphorus-containing modified flame-retardant saturated polyester resin, and the flame retardant a and the flame retardant b are both an antimony-free flame retardant. The antimony-free flame retardant is more environmentally friendly and can achieve the flame-retardant effect of VW-1.

Description

technical field [0001] The invention relates to the field of hot-melt adhesive films, in particular to an antimony-free and flame-resistant hot-melt adhesive film for FFC wires and a preparation method thereof. Background technique [0002] FFC cable, also known as Fexibe Flat Cable (FFC), is a flexible flat cable. It is a new type of data cable made of tinned flat copper wires sandwiched between upper and lower layers of insulating materials. It is soft and flexible. Advantages such as bending and folding. In the existing FFC cable, the hot-melt bonding of the insulating material and the tinned flat copper wire is realized through a hot-melt adhesive film. [0003] The existing hot melt adhesive film for FFC wire uses bromine-antimony synergistic flame retardant to achieve the flame retardant effect of VW-1 required by FFC wire products, but this flame retardant system will produce corrosive gas and smoke while retardant , often causing environmental and health problems. ...

Claims

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Application Information

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IPC IPC(8): C09J167/00C09J11/04C09J11/06C09J7/35C09J7/25C09J7/50
CPCC09J167/00C09J11/04C09J11/06C09J7/35C09J7/255C09J7/50C08L2205/03C08L2205/025C08L2201/02C09J2203/302C09J2467/003C09J2475/003C08L67/00C08K5/03C08K3/22
Inventor 李政叶海南
Owner 广东莱尔新材料科技股份有限公司
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