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Composite flame-retardant film and preparation method thereof

Inactive Publication Date: 2011-10-19
苏州市安特菲尔新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation of composite flame retardant film is mainly divided into two types: one is to disperse the flame retardant adhesive resin containing a large amount of flame retardant in a solvent and then apply it on the surface of the substrate film, and then volatilize the solvent to obtain a composite film The second method is to directly press the flame-retardant film on the surface of the substrate film to make a composite film; the method usually used at present is mainly the former, and the former needs to add a large amount of flame retardant in the process of preparation. Into the product, so as to achieve the purpose of flame retardancy, the addition of a large number of flame retardants will have an impact on the mechanical properties of the product; at the same time, the flame retardants used are often halogen-containing products, which will produce Toxins pollute the environment
The flame retardant film used in the second method is generally polyvinyl chloride, which will produce strong carcinogenic dioxins during incineration, so it cannot meet the requirements of product environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The manufacture method of the composite flame retardant film of the present embodiment comprises the following steps:

[0018] The halogen-free flame-retardant base film is selected as the substrate, its thickness is 25 microns, and it is biaxially stretched, and the weight ratio of its components is:

[0019] 1) Polyethylene terephthalate 70

[0020] 2) Organosilanol with a degree of polymerization of 5 10

[0021] 3) Hydroxyphenylphosphonoacetic acid 1

[0022] 4) Melamine 15

[0023] The thickness of the adhesive layer is 30 microns. The adhesive layer material is put into a high-temperature mixer and mixed evenly before being granulated. The weight ratio of ingredients is:

[0024] 1) Polypropylene terephthalate 90

[0025] 2) Magnesium hydroxide 80

[0026] Use the halogen-free flame-retardant base film as the substrate, laminate the adhesive layer and the high-temperature-resistant release film on it, heat-press the two at a temperature of 180 degrees with a...

Embodiment 2

[0028] The preparation method of the composite flame retardant film of the present embodiment comprises the following steps:

[0029] The halogen-free flame-retardant base film is selected as the substrate, its thickness is 19 microns, and it is biaxially stretched, and the weight ratio of its components is:

[0030] 1) Polyethylene terephthalate 100

[0031] 2) Bis(p-carboxyphenyl)phenylphosphine oxide 6

[0032] 3) Ammonium polyphosphate 9

[0033] 4) Silica 1

[0034] The thickness of the adhesive layer is 35 microns. After dissolving and dispersing the material in the adhesive layer in a solvent, it is evenly coated on the surface of the substrate, and then passed through a drying tunnel at 50~200°C to remove the solvent to obtain an adhesive layer. , the weight ratio of its ingredients is:

[0035] 1) Polyurethane 80

[0036] 2) Calcium phosphinate 15

[0037] 3) Nano-montmorillonite 5

[0038] After laminating the halogen-free flame-retardant film base film and th...

Embodiment 3

[0040] The manufacture method of the composite flame retardant film of the present embodiment comprises the following steps:

[0041] The halogen-free flame-retardant base film is used as the substrate, its thickness is 25 microns, and it is biaxially stretched, and the weight ratio of the components contained in it is:

[0042] 1) Polypropylene terephthalate 100

[0043] 2) Hydroxypropylphosphonic acid 3

[0044] 3) Melamine melamine salt 15

[0045] The thickness of the adhesive layer is 100 microns. Put the following materials into a high-temperature mixer, mix them evenly, and then granulate them, and then put the granules into an extrusion coating machine to prepare an adhesive film. The weight ratio of its ingredients is:

[0046] 1) Polybutylene terephthalate 100

[0047] 2) 9,10-dihydro-9-oxa-10-phosphonophenanthrene 3

[0048] After laminating the halogen-free flame-retardant film base film and the adhesive layer film, heat-press the materials at a temperature of...

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Abstract

The invention provides an environment-friendly composite flame-retardant film and a preparation method thereof, wherein the composite flame-retardant film comprises a halogen-free flame-retardant basal film and a bonding layer; the preparation method of the composite flame-retardant film comprises the following steps of: taking the halogen-free flame-retardant basal film as a basal material, stacking the bonding layer on the halogen-free flame-retardant basal film, and hot-pressing the halogen-free flame-retardant base film and the bonding layer together at the temperature of 50-300 DEG C to form the composite flame-retardant film. The environment-friendly composite flame-retardant film has the characteristics of excellent flame retardant property, thermal stability and halogen-free environmental friendliness and can be widely applied to various fields such as electronics and the like having requirements on flame-retardant property.

Description

technical field [0001] The invention relates to an environment-friendly composite flame-retardant film and a preparation method thereof. The composite flame-retardant film can be widely used in the electronic industry. Background technique [0002] Composite flame retardant film, as an electronic protection material and shielding material, can be widely used in various fields with flame retardant requirements. It is composed of a halogen-free flame retardant base film and an adhesive layer. At present, electronic products have higher and higher requirements for flame retardant properties, and the demand for halogen-free flame retardant products is also constantly increasing. [0003] The preparation of composite flame retardant film is mainly divided into two types: one is to disperse the flame retardant adhesive resin containing a large amount of flame retardant in a solvent and then apply it on the surface of the substrate film, and then volatilize the solvent to obtain a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C08L67/02C08K5/3492C08K3/32C08K3/36C08K5/5313C08K5/5415C08K5/5333C08K5/5397C08K5/5317C09J167/02C09J175/04C09J167/00C09J11/04C09J11/06
Inventor 白永平魏东
Owner 苏州市安特菲尔新材料有限公司