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Flame-retardant epoxy plastic plate

A technology for epoxy plastics and sheets, applied in the field of polymer material modification and processing, can solve the problems of high cost, reduction of plasticization and flame retardancy, environmental pollution and other problems

Inactive Publication Date: 2021-05-18
欧阳杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this material is expensive and expensive, which is not conducive to the popularization and promotion of the development of the automobile industry.
[0003] Chlorinated paraffin is a chlorinated derivative of paraffin. It has the advantages of low volatility, flame retardancy, good barrier property, and low price. It can be used as additives such as plasticizers and flame retardants. It has been widely used in plasticizing and In the field of flame retardancy, however, as the use time is extended, chlorinated paraffins are easy to migrate out of the polymer network, which will not only cause environmental pollution, but also reduce the durability of plasticization and flame retardancy

Method used

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  • Flame-retardant epoxy plastic plate
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  • Flame-retardant epoxy plastic plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of carboxyl-containing chlorinated paraffin 42: Dissolve 20 g of chlorinated paraffin 42 in 210 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 28 g of potassium carbonate, and react at 55° C. for 30 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 42.

[0039] (2) Preparation of chlorinated paraffin 42 containing acid chloride: add 70mol carboxyl-containing chlorinated paraffin 42 to the reaction kettle, add dropwise 85mol phosphorus trichloride, stir and heat up to 70°C, react for 4h, cool to room temperature, and stand to separate Layer to obtain chlorinated paraffin 42 containing acid chloride.

[0040] (3) Preparation of chlorinated paraffin 42 modified dibasic acid: add 50mol2,5-dihydroxyterephthalic acid and an appropriate amount of acid-bin...

Embodiment 2

[0046] (1) Preparation of carboxyl-containing chlorinated paraffin 52: Dissolve 20 g of chlorinated paraffin 52 in 220 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 29 g of potassium carbonate, and react at 80° C. for 10 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol. The product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 52.

[0047] (2) Preparation of chlorinated paraffin 52 containing acid chloride: add 70 mol of chlorinated paraffin 52 containing carboxyl to the reaction kettle, dropwise add 85 mol of phosphorus trichloride, stir and heat up to 50°C, react for 6 hours, cool to room temperature, let stand to separate layer to obtain the chlorinated paraffin 52 containing the acid chloride.

[0048] (3) Preparation of chlorinated paraffin 52 modified dibasic acid: add 50mol2,5-dihydroxyterephthalic acid and an appropriate a...

Embodiment 3

[0054] (1) Preparation of carboxyl-containing chlorinated paraffin 70: Dissolve 20 g of chlorinated paraffin 70 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 30 g of potassium carbonate, and react at 65° C. for 24 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100°C for 5 hours to obtain carboxyl-containing chlorinated paraffin 70.

[0055] (2) Preparation of chlorinated paraffin 70 containing acid chloride: add 70mol carboxyl-containing chlorinated paraffin 70 to the reaction kettle, add dropwise 85mol phosphorus trichloride, stir and heat up to 60°C, react for 5h, cool to room temperature, and stand to separate layer to obtain chlorinated paraffin 70 containing acid chloride.

[0056] (3) Preparation of chlorinated paraffin 70 modified dibasic acid: add 50mol2,5-dihydroxyterephthalic acid and an appropriate amount of acid-b...

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Abstract

The invention discloses a flame-retardant epoxy plastic plate which comprises a chlorinated paraffin modified dendritic polyamide curing agent, and a preparation method of polyamide comprises the following steps: reacting chlorinated paraffin with p-hydroxybenzoic acid to prepare carboxyl-containing chlorinated paraffin, acylating the carboxyl-containing chlorinated paraffin, and reacting with 2, 5-dihydroxy terephthalic acid by esterification to prepare the chlorinated paraffin modified dibasic acid, then acylating to react with 1, 3-propane diamine to prepare chlorinated paraffin modified diamine, and finally reacting with triphenylmethane-4, 4 ', 4' '-triacyl chloride to obtain the dendritic polyamide. The preparation method is easy to operate, wide in raw material source and mild in reaction condition, and meets industrial production. The prepared epoxy plastic plate has good mechanical properties, flame retardance and heat resistance, and has a wide application prospect.

Description

technical field [0001] The invention relates to a flame-retardant epoxy plastic plate, which belongs to the technical field of polymer material modification and processing. Background technique [0002] With the development of the automobile industry, my country's automobile production has grown steadily, and the scale of automobile consumption has become increasingly large. In the automotive industry, regardless of the inspection model of sheet metal parts or plastic parts and assembly assemblies, except for a few that use aluminum alloy as the working surface, most of them use epoxy resin synthetic materials, while ordinary epoxy resin The organizational structure is soft, poor wear resistance, high brittleness, short life, and unsatisfactory flame retardancy. In order to improve its brittleness and flame retardancy, it is necessary to add a large amount of plasticizers and flame retardants. The polyurethane plastic sheet has excellent performance, good toughness, high w...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K3/22C08K7/14C08G59/44C08G69/42C08G83/00
CPCC08G59/44C08G69/42C08G83/003C08K3/2279C08K7/14C08L2201/02C08L2201/08C08L63/00
Inventor 欧阳杰
Owner 欧阳杰
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