Unlock instant, AI-driven research and patent intelligence for your innovation.

Nano-modified flame-retardant phenolic molding compound and preparation method thereof

A phenolic molding compound and nano-modification technology, applied in the field of phenolic molding compound, can solve the problems of influence of injection molding performance, high production cost, limited application field, etc., and achieve the effects of improved dispersion performance, outstanding flame retardant effect and less pollution

Active Publication Date: 2017-07-21
浙江嘉民新材料有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, due to the existence of clay, the loss of production equipment is large, and the organic clay itself requires a certain cost, and the price of this type of material may not be competitive.
In addition, its injection molding performance will be affected due to the addition of organoclay
[0007] U.S. Patent 6664343B2 discloses a preparation method of a phenolic composite material, its main component is more than 70% thermoplastic phenolic plastics, plus a certain amount of silicone rubber components and curing agent, its curing speed is fast, moisture-proof performance is good, However, due to the large amount of silicone rubber and phenolic resin used as raw materials, the production cost is relatively high, and the application field is limited.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nano-modified flame-retardant phenolic molding compound and preparation method thereof
  • Nano-modified flame-retardant phenolic molding compound and preparation method thereof
  • Nano-modified flame-retardant phenolic molding compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Slowly add 0.2mol / L magnesium nitrate and 0.1mol / L aluminum nitrate mixed solution (100ml) dropwise into 500mL sodium dodecylbenzenesulfonate solution with a concentration of 0.1mol / L at room temperature, and keep the pH of the system at 9-11, aging at 60°C for 20 hours after the dropwise addition, filtering and washing, the obtained white powder is the nano-modified magnesium-aluminum composite flame retardant. The reaction yield was 92%.

[0042] figure 1 The X-ray diffraction pattern of the nano-modified magnesium-aluminum composite flame retardant prepared for this example, it can be seen from the figure that the first-order diffraction peak (003) appears at 3.10°, and the corresponding layer spacing is 2.84nm, which is indeed Modifiers at the nanoscale.

[0043] figure 2 Schematic diagram of the structure of the nano-modified magnesium-aluminum composite flame retardant prepared for this example. The intercalation agent between the sheets is mainly sodium dodec...

Embodiment 2

[0049] Slowly add 0.1mol / L magnesium nitrate and 0.05mol / L aluminum nitrate mixed solution (50ml) dropwise into 500mL sodium dodecylbenzenesulfonate solution with a concentration of 0.05mol / L at room temperature to keep the pH of the system at 9-11, aging at 80°C for 15 hours after the dropwise addition, filtering and washing, the obtained white powder is the nano-modified magnesium-aluminum composite flame retardant. The reaction yield was 95%.

[0050] Melt and blend 20 grams of the nano-modified magnesium-aluminum composite flame retardant prepared in this practice and 180 grams of thermoplastic phenolic resin on a three-roll machine (drum temperature 90-120° C.), and mix thoroughly for 30 minutes to obtain a nano-modified flame retardant. Flame retardant thermoplastic phenolic resin B.

[0051] Mix each component according to the weight percentage in Table 2, roll on a double-roller mill, and pulverize to obtain a nano-modified flame-retardant phenolic molding compound. S...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a nano modified flame-retardant phenolic molding plastic. The nano modified flame-retardant phenolic molding plastic is prepared from the following raw materials in percentage by weight: 40-60% of nano modified flame-retardant thermoplastic phenolic resin, 10-30% of wood powder, 10-30% of filling, 1-2% of a mould release agent, 0.5-1.5% of a coloring agent, 5-10% of a curing agent and 0.5-5% of curing auxiliaries. A preparation method for the nano modified flame-retardant phenolic molding plastic comprises the following steps: mixing a soluble magnesium salt, a soluble aluminum salt and water to obtain a mixed solution; dropwise adding the mixed solution into a sodium dodecyl benzene sulfonate aqueous solution and keeping the pH value of the reaction system to 8-13; after dropwise adding, ageing and filtering to obtain a nano modified magnesium-aluminum composite flame retardant; blending and modifying the thermoplastic phenolic resin with the nano modified magnesium-aluminum composite flame retardant to obtain the nano modified flame-retardant thermoplastic phenolic resin. The invention provides the nano modified flame-retardant phenolic molding plastic which is long in storage time, excellent in insulation, toughness, heat resistance and flame resistance.

Description

technical field [0001] The invention relates to the technical field of phenolic molding compounds, in particular to a nano-modified flame-retardant phenolic molding compound and a preparation method thereof. Background technique [0002] Phenolic molding compound is a thermosetting plastic material prepared mainly from thermoplastic phenolic resin and other fillers. It has the characteristics of low price, excellent mechanical properties, good insulation performance, and easy and quick molding. It is widely used in military industry, electrical components, instruments, and buildings. and other fields. However, this type of material also has defects such as brittleness, difficult storage, limited heat resistance and flame retardancy. [0003] Most of the currently published invention patents for flame-retardant phenolic molding materials use halogen-containing flame retardants, and their preparation, use, and post-treatment processes have a greater impact on the environment....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/06C08L97/02C08K13/06C08K9/04C08K3/28C08K3/16C08K3/34C08K3/26C08K5/09C08K5/098C08J3/20
Inventor 沈芳沈培林
Owner 浙江嘉民新材料有限公司