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Preparation method of a halogen-free, phosphorus-free, environmentally friendly flame-retardant composite matrix copper-clad laminate

A flame-retardant and environmentally friendly technology, applied in the field of copper clad laminate production, can solve problems such as environmental pollution, high price of phosphorus-containing compounds, and impact on heat resistance, and achieve the effects of cost reduction, heat resistance improvement, and good flexibility

Active Publication Date: 2018-08-28
SHANDONG JINBAO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of phosphorus-containing compounds is high, and the use of phosphorus-containing compounds to manufacture copper-clad laminates is susceptible to moisture, which affects heat resistance; nitrogen and phosphorus synergistically flame-retardant, and the combustion products contain a large amount of phosphorus-containing substances, causing pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing a halogen-free, phosphorus-free, environment-friendly flame-retardant composite base copper-clad laminate, the steps are as follows:

[0033] (1) Preparation of melamine-formaldehyde resin A: 80 parts of melamine, 80 parts of formaldehyde aqueous solution with a concentration of 37wt%, and 25 parts of paraformaldehyde are successively put into the reaction kettle, and then 0.1 part of basic catalyst barium hydroxide is added, and the mixture is heated at 60° C. React for 30 minutes under the same conditions, continue to add 70 parts of methanol solvent, cool down to 45°C, and prepare melamine formaldehyde resin A with 30% nitrogen content;

[0034] (2) Preparation of nitrogen-containing phenolic resin B: put 100 parts of phenol, 80 parts of vegetable oil and 0.1 part of acid catalyst oxalic acid into the reactor, react at 80°C for 80 minutes, and then add 100 parts of melamine formaldehyde prepared in step (1) Resin A, 120 parts of formaldehyde so...

Embodiment 2

[0042] A method for preparing a halogen-free, phosphorus-free, environment-friendly flame-retardant composite base copper-clad laminate, the steps are as follows:

[0043] (1) Preparation of melamine-formaldehyde resin A: 120 parts of melamine, 120 parts of formaldehyde aqueous solution with a concentration of 37wt%, and 40 parts of paraformaldehyde are successively put into the reactor, and then 0.4 parts of basic catalyst calcium hydroxide are added. React under the conditions for 50 minutes, continue to add 100 parts of acetone solvent, cool down to 10°C, and prepare melamine formaldehyde resin A with a nitrogen content of 40%;

[0044] (2) Preparation of nitrogen-containing phenolic resin B: put 150 parts of phenol, 100 parts of vegetable oil and 0.3 parts of acid catalyst succinic acid into the reactor, react at 160 °C for 120 minutes, and then add 150 parts of melamine prepared in step (1) Formaldehyde resin A, 230 parts of formaldehyde aqueous solution with a concentratio...

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Abstract

The invention belongs to the technical field of copper-clad plate production and particularly relates to a preparation method of a halogen-free, non-phosphorus, environment-friendly flame-retardant composite matrix copper-clad plate. According to the invention, two new nitrogen-containing phenolic resins are fully utilized in coordination with other fillers to ensure the flame retardance, machinability and other basic properties of the copper-clad plate, where nitrogen-containing phenolic resin A has the characteristics of high nitrogen content, low molecular weight and intersolubility with water in any ratio, and nitrogen-containing phenolic resin B has the characteristics of high nitrogen content and good flexibility. The copper-clad plate produced according to the invention has the following halogen content: less than or equal to 0.09% of nitrogen, less than or equal to 0.09% of bromine, or less than or equal to 0.15% in total of nitrogen and bromine, thus meeting the halogen-free requirement, and has no any phosphorus compound added therein with a phosphorus content of less than or equal to 0.1%. The copper-clad plate produced according to the invention has flame retardance meeting the requirement of FV0 grade and achieves no halogen, no phosphorus and environmental protection with reduced cost and significantly improved heat resistance.

Description

technical field [0001] The invention belongs to the technical field of copper-clad laminate production, and in particular relates to a method for preparing a halogen-free, phosphorus-free, environment-friendly and flame-retardant composite base copper-clad laminate. Background technique [0002] Copper clad laminates are widely used in the manufacture of printed circuit boards (referred to as PCBs) for various household appliances, electronic information products and industrial electronic products. As the substrate material of printed circuit boards, it plays the three major functions of carrying electronic components, forming conductive circuit patterns, and insulating between layers and lines. It is an important electronic basic material. [0003] The flame retardancy of CCL is one of the important safety performances of electronic products. Halogen-based flame-retardant materials (including Cl, Br) have been used in the printed circuit substrate industry for many years d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/42B32B27/04B32B17/04B32B29/02B32B15/14C08G12/32C08G14/12B32B37/06B32B37/10B32B38/08B32B38/18
CPCB32B15/14B32B27/42B32B29/02B32B37/06B32B37/10B32B38/08B32B38/1808B32B2037/243B32B2255/02B32B2255/26B32B2260/021B32B2260/046B32B2262/101B32B2307/3065B32B2457/08C08G12/32C08G14/12
Inventor 陈长浩李宝东谢峰周鸥秦伟峰王卫兴朱义刚姜晓亮朱琪琪李洪学
Owner SHANDONG JINBAO ELECTRONICS
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