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A special glass fiber board prepreg for star wheel

A prepreg, glass fiber board technology, applied in chemical instruments and methods, glass/slag layered products, transportation and packaging, etc., can solve the problems of low toughness, low strength, etc., achieve low cost, low defect rate, simple process Effect

Active Publication Date: 2019-03-08
金安国纪科技(安徽)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a special glass fiber board glue, prepreg, glass fiber board and its preparation for overcoming the low toughness and low strength of the star wheel special glass fiber board in the prior art. method

Method used

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  • A special glass fiber board prepreg for star wheel
  • A special glass fiber board prepreg for star wheel
  • A special glass fiber board prepreg for star wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Preparation of a special glass fiber board glue for cruise ships:

[0047] Resin: 600 parts of flame retardant modified liquid halogen-free epoxy resin, 450 parts of flame retardant modified solid halogen-free epoxy resin; the flame retardant modified epoxy resin here is DOPO type halogen-free flame retardant epoxy resin, product name : DOPO type, epoxy value: 8.3-9.4 (Eq / kg), viscosity 27°C (mPa·s): 2000-5000; the flame-retardant modified solid epoxy resin here is DOPO type halogen-free flame-retardant epoxy resin , Product name: DOPO type, epoxy value: 970-1070 (g / eg), viscosity 150 ° C (mPa s): 8000-11000.

[0048] Curing agent: 40 parts of dicyandiamide (DICY);

[0049] Curing accelerator: 0.35 part of 2-phenylimidazole (C-2 substituted);

[0050] Solvent: 400 parts of dimethylformamide (DMF), 300 parts of acetone, 100 parts of butanone;

[0051] Inorganic fillers: 50 parts of silica and 80 parts of talc.

[0052] Preparation:

[0053] (1) mixing solidifying...

Embodiment 2

[0066] 1. Preparation of a special glass fiber board glue for cruise ships:

[0067] Resin: 650 parts of flame retardant modified liquid halogen-free epoxy resin, 400 parts of flame retardant modified solid halogen-free epoxy resin; the flame retardant modified epoxy resin here is DOPO type halogen-free flame retardant epoxy resin, product name : DOPO type, epoxy value: 8.3-9.4 (Eq / kg), viscosity 27°C (mPa·s): 2000-5000; the flame-retardant modified solid epoxy resin here is DOPO type halogen-free flame-retardant epoxy resin , Product name: DOPO type, epoxy value: 970-1070 (g / eg), viscosity 150 ° C (mPa s): 8000-11000.

[0068] Curing agent: 45 parts of dicyandiamide (DICY);

[0069] Curing accelerator: 0.40 part of 2-phenylimidazole (C-2 substituted);

[0070] Solvent: 450 parts of dimethylformamide (DMF), 350 parts of acetone, 50 parts of butanone;

[0071] Inorganic fillers: 60 parts of silica and 70 parts of talc.

[0072] Preparation:

[0073] (1) mixing solidifying ...

Embodiment 3

[0086] 1. Preparation of a special glass fiber board glue for cruise ships:

[0087] Resin: 600 parts of flame retardant modified liquid halogen-free epoxy resin, 500 parts of flame retardant modified solid halogen-free epoxy resin; the flame retardant modified epoxy resin here is DOPO type halogen-free flame retardant epoxy resin, product name : DOPO type, epoxy value: 8.3-9.4 (Eq / kg), viscosity 27°C (mPa·s): 2000-5000; the flame-retardant modified solid epoxy resin here is DOPO type halogen-free flame-retardant epoxy resin , Product name: DOPO type, epoxy value: 970-1070 (g / eg), viscosity 150 ° C (mPa s): 8000-11000.

[0088] Curing agent: 50 parts of dicyandiamide (DICY);

[0089] Curing accelerator: 0.45 part of 2-phenylimidazole (C-2 substituted);

[0090] Solvent: 300 parts of dimethylformamide (DMF), 400 parts of acetone, 100 parts of butanone;

[0091] Inorganic fillers: 45 parts of silica and 75 parts of talc.

[0092] Preparation:

[0093] (1) mixing solidifying...

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Abstract

The invention discloses special glass-fiber-board prepreg for polishing fixtures. The special glass-fiber-board prepreg is prepared through the steps of coating an electronic-grade glass fiber fabric with special glass fiber board glue liquor for the polishing fixtures, and then, carrying out baking. The special glass fiber board glue liquor for the polishing fixtures is prepared from the following raw materials, including the following ingredients in parts by weight: 550-650 parts of flame-retardant modified liquid-state halogen-free epoxy resin, 400-500 parts of flame-retardant modified solid-state halogen-free epoxy resin, 30-50 parts of curing agent, 0.30-0.50 part of curing accelerator, 700-800 parts of organic solvent and 80-130 parts of inorganic filler. The special glass-fiber-board prepreg for the polishing fixtures, disclosed by the invention, has good heat resistance and chemical resistance, the pollution to environments can be reduced, and the special glass-fiber-board prepreg has higher toughness compared with that of the existing products.

Description

technical field [0001] The invention specifically relates to a glass fiber board prepreg specially used for a star wheel. Background technique [0002] The star wheel is a fixture used in various plane polishing processes such as glass, lens, silicon wafer, hard disk, etc., also known as polishing fixture, polishing pad, etc. The polishing process has been developed for many years and has become very mature. In recent years, mobile phones, tablets, etc. Computers and other popular electronic products are popularized in large numbers, touch screens are developing rapidly, and lens polishing is developing rapidly. [0003] At present, the main material of the cruise star is FR-4 glass fiber board. Combining various characteristics, the glass fiber board is the most suitable material for manufacturing the cruise star on the market. The process is simple, does not damage the polished workpiece and so on. However, it also has certain shortcomings, such as: glass fiber boards ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K13/04C08K7/14C08K3/36C08K3/34C08K13/02C08J5/24B32B17/02B32B7/12B32B33/00B32B37/12B32B38/16B32B37/06B32B37/10
CPCB32B7/12B32B17/067B32B33/00B32B37/06B32B37/10B32B37/12B32B38/164B32B2250/20B32B2262/101B32B2307/546B32B2307/554B32B2307/558B32B2605/12C08J5/24C08J2363/00C08J2463/00C08L63/00C08L2201/02C08L2201/22C08L2205/025C08K13/02C08K3/36C08K3/34C08K13/04C08K7/14
Inventor 李清亮吴兰中李子龙
Owner 金安国纪科技(安徽)有限公司