Flame retardant composition copper clad laminate and preparation thereof

A composition and flame retardant technology, applied in the field of flame retardant composition and copper clad laminates and their preparation, can solve the problems of poor heat resistance, low water absorption, high water absorption, etc., to solve glue flow and reduce fluidity Effect

Active Publication Date: 2008-12-17
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of poor heat resistance and high water absorption of copper clad laminates made from existing flame retardant compositions, and provide a method for producing copper clad laminates with good heat resistance and low water absorption. flame retardant composition

Method used

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  • Flame retardant composition copper clad laminate and preparation thereof
  • Flame retardant composition copper clad laminate and preparation thereof
  • Flame retardant composition copper clad laminate and preparation thereof

Examples

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preparation example Construction

[0039] The preparation method of the flame retardant composition provided by the invention comprises mixing a main resin, a curing agent and tetrabromobisphenol A. With respect to the host resin of 100 parts by weight, the consumption of curing agent is preferably 50-120 parts by weight, more preferably 70-90 parts by weight; the consumption of tetrabromobisphenol A is preferably 5-30 parts by weight, more preferably 10- 20 parts by weight.

[0040] Compared with the polymerization of tetrabromobisphenol A and the main resin to form low-bromine or high-bromine epoxy resin, the present invention directly mixes tetrabromobisphenol A with the main resin and curing agent, and the tetrabromobisphenol A is not mixed with the main resin. reaction, therefore, tetrabromobisphenol A can also play a role in curing the bisphenol A novolac epoxy resin while playing a flame retardant effect, and can reduce the fluidity of the bisphenol A novolak epoxy resin. Effectively solve the glue flow...

Embodiment 1

[0056] This example is used to illustrate the flame retardant composition provided by the present invention and its preparation method.

[0057] 100 parts by weight of bisphenol A novolac epoxy resin (produced by Yueyang Petrochemical Epoxy Resin Factory, trade mark: CYDBN-240, number average molecular weight: 4500, epoxy equivalent: 220), 120 parts by weight of phenolic resin (Chuang Mingda Produced by the company, brand name: RI-3500, number average molecular weight: 3550, free phenol content: 0.1%) and 16 parts by weight of tetrabromobisphenol A (Jiahe Chemical Factory, TBBA) were mixed to obtain flame retardant composition Z1.

Embodiment 2

[0059] This example is used to illustrate the flame retardant composition provided by the present invention and its preparation method.

[0060] Carboxyl-terminated liquid nitrile rubber (Nuoyu, CTBN1300*13) with a weight ratio of 4:6 and brominated epoxy resin (produced by Guangzhou Hongchang Epoxy Resin Company, brand: 454A80, number average molecular weight is 3100, bromine content is 20%, and the epoxy equivalent is 465) at 90°C for 1 hour to obtain a prepolymer of carboxyl-terminated liquid nitrile rubber and brominated epoxy resin. The structural formula of this prepolymer is shown in formula III, wherein in R 1 In, m is 9; in R 2 Among them, x1 is 4, x2 is 2, y is 4, and n is 6.

[0061] 100 parts by weight of bisphenol A novolac epoxy resin (produced by Yueyang Petrochemical Epoxy Resin Factory, trade mark: CYDBN-240, number average molecular weight: 4500, epoxy equivalent: 220), 120 parts by weight of phenolic resin (Chuang Mingda Produced by the company, brand: RI...

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Abstract

The invention discloses a flame retardant compound containing main resin and a curing agent, wherein, the main resin is bisphenol-A phenolic epoxy resin and the curing agent is phenolic resin and the compound also contains tetrabromobisphenol A. The invention also provides a preparation method of the flame retardant compound, a copper clad using the flame retardant compound and a preparation method thereof. The main resin and the curing agent of the flame retardant compound provided by the invention adopt the combination of the bisphenol-A phenolic epoxy resin and the phenolic resin and can effectively improve the heat resistance and lower the water absorption of the copper clad made from the compound. In addition, the tetrabromobisphenol A contained in the flame retardant compound have the effects of flame retarding as well as curing to the bisphenol-A phenolic epoxy resin, thus lowering the mobility of the bisphenol-A phenolic epoxy resin and effectively solving the problem of resin recession during the lamination of a prepreg and a copper foil.

Description

technical field [0001] The invention relates to a flame-retardant composition, a copper-clad laminate and a preparation method thereof. Background technique [0002] Copper-clad laminates can be used for printed circuit boards, and are generally made by laminating prepreg and copper foil. The manufacturing method of prepreg is to mix a flame-retardant composition with a solvent such as methyl ethyl ketone to obtain a glue, and impregnate glass fiber cloth in the Glue, then remove and dry. Existing flame retardant compositions generally contain a main resin and a curing agent, the main resin is a brominated epoxy resin, and the curing agent is an amine curing agent such as aliphatic amine, aromatic amine and dicyandiamide. [0003] The EU's RoHS directive requires that the lead content in electrical and electronic products placed on the EU market from July 1, 2006 shall not exceed 1000ppm. Therefore, according to the directive, lead-free soldering is required when soldering ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08K5/13B05D7/14C08L61/06
Inventor 陶潜江林宫清
Owner BYD CO LTD
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