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Flame-retardant reinforced polycarbonate composite board and preparation method thereof

A technology of polycarbonate and polycarbonate film, which is applied in the direction of chemical instruments and methods, flat products, and other household appliances, which can solve the problems of poor impact resistance and high flame retardancy of plates, and improve compatibility The effect of improving compatibility

Active Publication Date: 2022-03-01
泉福智慧新材料(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polycarbonate composite board is a board with polycarbonate as the main resin component, which has excellent mechanical strength and dimensional stability, but because of its processing performance, the impact resistance of the board made is poor; and in polycarbonate In the application of ester composite boards, pure polycarbonate components cannot meet the requirements of high flame retardancy, and the addition of some flame retardants has no significant positive impact on the impact resistance of the prepared polycarbonate composite boards.

Method used

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  • Flame-retardant reinforced polycarbonate composite board and preparation method thereof
  • Flame-retardant reinforced polycarbonate composite board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Preparation of modified polycarbonate film layer:

[0052] 1.1. Sulfonation of PC and LCP:

[0053] In a nitrogen atmosphere, mix PC, LCP, and sulfonating agent, heat up to 50°C, react for 5 hours, add sodium chloride, neutralize with alkali, extract, and purify to obtain modified PC; organic particles are ACR, PC, and LCP , The mass ratio of organic particles is 9:1:1; the molar ratio of PC, sulfonating agent, and sodium chloride is 1:0.1:1;

[0054] 1.2. Preparation of sulfonated modified organic particles:

[0055] a. Surface modification:

[0056] In a dry nitrogen atmosphere, mix borax, glycerin and absolute ethanol, add dopamine hydrochloride, stir for 15 minutes, add sodium carbonate, ice bath, slowly add 4-vinylbenzoyl chloride, react for 8 hours; use hydrochloric acid to adjust the pH of the system To 2, extract and dry to obtain a modified monomer; the molar ratio of borax, dopamine hydrochloride, sodium carbonate, and 4-vinylbenzoyl chloride is 1:1:1:1...

Embodiment 2

[0071] (1) Preparation of modified polycarbonate film layer:

[0072] 1.1. Sulfonation of PC and LCP:

[0073] In a nitrogen atmosphere, mix PC, LCP, and sulfonating agent, raise the temperature to 55°C, react for 5.5 hours, add sodium chloride, neutralize with alkali, extract, and purify to obtain modified PC; the organic particles are ACR, PC, The mass ratio of LCP and organic particles is 7:3:2; the molar ratio of PC, sulfonating agent and sodium chloride is 1:0.5:1;

[0074] 1.2. Preparation of sulfonated modified organic particles:

[0075] a. Surface modification:

[0076] In a dry nitrogen atmosphere, mix borax, glycerin and absolute ethanol, add dopamine hydrochloride, stir for 15 minutes, add sodium carbonate, ice bath, slowly add 4-vinylbenzoyl chloride, react for 10 hours; use hydrochloric acid to adjust the pH of the system To 1.5, extract, dry, obtain modified monomer; The molar ratio of borax, dopamine hydrochloride, sodium carbonate, 4-vinylbenzoyl chloride i...

Embodiment 3

[0091] (1) Preparation of modified polycarbonate film layer:

[0092] 1.1. Sulfonation of PC and LCP:

[0093] In a nitrogen atmosphere, mix PC, LCP, and sulfonating agent, heat up to 60°C, react for 6 hours, add sodium chloride, neutralize with alkali, extract, and purify to obtain modified PC; organic particles are ACR, PC, and LCP , The mass ratio of organic particles is 6:4:1.5; the molar ratio of PC, sulfonating agent, and sodium chloride is 1:1.1:1;

[0094] 1.2. Preparation of sulfonated modified organic particles:

[0095] a. Surface modification:

[0096] In a dry nitrogen atmosphere, mix borax, glycerin and absolute ethanol, add dopamine hydrochloride, stir for 20 minutes, add sodium carbonate, ice bath, slowly add 4-vinylbenzoyl chloride, react for 12 hours; use hydrochloric acid to adjust the pH of the system To 1, extract and dry to obtain a modified monomer; the molar ratio of borax, dopamine hydrochloride, sodium carbonate, and 4-vinylbenzoyl chloride is 1:1:...

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Abstract

The invention discloses a flame-retardant reinforced polycarbonate composite board and a preparation method thereof, and the preparation method comprises the following steps: (1) taking PC and LCP for sulfonation, adding sulfonated modified organic particles and zinc acetate, stirring, granulating and flaking to obtain a modified polycarbonate film layer; and (2) taking the carbon fiber non-woven fabric and the modified polycarbonate film layer, alternately laminating and hot-pressing to obtain the composite board. Rigid organic particles are modified, a styrene-siloxane polymer with a hyperbranched molecular structure is introduced to the surface of the rigid organic particles, the mechanical property and the flame retardant property of the prepared polycarbonate composite board are improved while the processing performance and the compatibility of a PC and LCP system are improved, and sulfonic acid is used for blocking, and sulfonated modified PC is added, so that the mechanical property and the flame retardant property of the polycarbonate composite board are improved. Zinc ions are used for crosslinking, so that the compatibility of the system and the flame retardant property and mechanical property of the polycarbonate composite board are further improved.

Description

technical field [0001] The invention relates to the technical field of polycarbonate composite boards, in particular to a flame-retardant reinforced polycarbonate composite board and a preparation method thereof. Background technique [0002] Polycarbonate is a high molecular polymer containing carbonate groups in the molecular chain. According to the classification of ester group structure, aromatic polycarbonate is widely used in industrial production. As the five major engineering plastics, it is widely used in automobiles. , electronics, glass and other fields. Polycarbonate composite board is a board with polycarbonate as the main resin component, which has excellent mechanical strength and dimensional stability, but because of its processing performance, the impact resistance of the board made is poor; and in polycarbonate In the application of ester composite boards, pure polycarbonate components cannot meet the requirements of high flame retardancy, and the addition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/12B32B9/00B32B9/04B32B7/027C08L69/00C08L67/00C08L51/04C08K5/098C08J5/18C08F285/00C08F212/14C08F230/08C08F8/36C08F8/40B29C65/02B29L7/00
CPCB32B27/365B32B27/12B32B5/022B32B7/027C08J5/18C08F285/00C08F8/36C08F8/40B29C65/02B29C66/45C08J2369/00C08J2467/00C08J2451/04C08K5/098B32B2262/106B32B2307/3065C08F212/26C08F230/085
Inventor 彭玉山彭量赵徽
Owner 泉福智慧新材料(江苏)有限公司