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Preparation method of skin collagen fiber-based flame retardant and method of flame-retardant modified polymer

A collagen fiber and skin collagen technology is used in the preparation of skin collagen fiber-based flame retardants and in the field of flame retardant modified polymers. The effect of improving flame retardancy, avoiding migration, and good compatibility

Active Publication Date: 2020-05-19
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many polymer materials have a fatal shortcoming: high flammability, that is, they are easy to burn during use, causing fire, which is extremely harmful
In addition, these flame retardants also have the risk of loss due to the lack of mutual previous reaction

Method used

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  • Preparation method of skin collagen fiber-based flame retardant and method of flame-retardant modified polymer
  • Preparation method of skin collagen fiber-based flame retardant and method of flame-retardant modified polymer
  • Preparation method of skin collagen fiber-based flame retardant and method of flame-retardant modified polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] This embodiment provides a method for preparing a skin collagen fiber-based flame retardant, comprising the following steps:

[0070] (1) Using yellow cowhide as raw material, carry out collagen fiber pretreatment according to the conventional tanning process, and the selected tanning process is chrome tanning process;

[0071] (2) Take 100 parts by weight of the pretreated skin collagen fiber and return it to water, mix it with 150 parts by weight of water at 25 ° C, adjust the pH to 3.0 with diluted formic acid aqueous solution, and gradually add 5 parts by weight of aluminum sulfate to mix After 1.5 hours, use magnesium oxide to adjust the pH to 4.0, continue mixing for 1 hour, and then age for 24 hours;

[0072] (3) Take 100 parts by weight of the skin collagen fibers obtained in step (2) and mix them with 100 parts by weight of water at 30° C., adjust the pH to 6.0 with diluted formic acid aqueous solution, and gradually add 3 parts by weight of tetramethylol Phos...

Embodiment 2

[0074] This embodiment provides a method for preparing a skin collagen fiber-based flame retardant, comprising the following steps:

[0075] (1) Using sheepskin as raw material, carry out collagen fiber pretreatment according to the conventional tanning process, the selected tanning process is glutaraldehyde tanning process;

[0076] (2) Take 100 parts by weight of pre-treated skin collagen fiber backwater, mix with 100 parts by weight of water, adjust the pH to 4.0 with diluted formic acid aqueous solution, then gradually add 7 parts by weight of sodium tetraborate and mix for 3 hours, mix During the period, the pH was controlled at 6.0; after the mixing, the pH was adjusted to 6.2 with alkali and the mixing was continued for 1 hour, and then aged for 24 hours and then dried to obtain a skin collagen fiber-based flame retardant.

Embodiment 3

[0078] This embodiment provides a method for preparing a skin collagen fiber-based flame retardant, comprising the following steps:

[0079] (1) With pigskin as raw material, collagen fiber pretreatment is carried out according to the conventional tanning process, and the selected tanning process is titanium tanning process;

[0080](2) Take 100 parts by weight of pre-treated skin collagen fiber backwater, mix with 100 parts by weight of water, adjust the pH to 2.8, add 6 parts by weight of aluminum sulfate and mix for 2 hours, use magnesium oxide to adjust the pH to 4.1 and continue Mix for 0.5h, then age for 24h;

[0081] (3) Take 100 parts by weight of the skin collagen fibers obtained in step (1) and mix them with 80 parts by weight of water, adjust the pH to 6.5 with alkali, add 10 parts by weight of methylolated melamine and mix for 1.5h, after the mixing is completed Use acid to adjust the pH to 4.2, and dry it after aging for 24 hours to obtain a skin collagen fiber-b...

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Abstract

The invention relates to the technical field of functional materials, in particular to a method for preparing a skin collagen fiber-based flame retardant and a method for flame-retardant modified high polymers. The preparation method of the skin collagen fiber-based flame retardant comprises the following steps: carrying out flame-retardant element loading treatment on the pre-treated skin collagen fiber. The flame retardant modified high polymer material of skin collagen fiber is realized by blending the skin collagen fiber-based flame retardant with the high polymer base material and then molding to prepare the flame retardant modified high polymer. The skin collagen fiber-based flame retardant prepared by the present invention can realize the flame-retardant modification of various high polymer materials, and improve the flame retardant by anti-melt dripping and improving the limiting oxygen index and carbon residual rate of the flame-retardant modified high polymer. Improve its flame retardancy.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a method for preparing a skin collagen fiber-based flame retardant and a method for flame-retardant modified high polymers. Background technique [0002] With the development of science and technology and the progress of society, polymer materials have permeated all aspects of people's lives. From aerospace to food, clothing and housing, polymer materials can be found everywhere. However, many polymer materials have a fatal shortcoming: high flammability, that is, they are easy to burn during use, causing fire, and are extremely harmful. At present, major fire accidents caused by the burning of high polymer materials occur from time to time. With the improvement of safety awareness in production and life, whether polymer materials are flame retardant has become an important consideration for the promotion and application of materials. [0003] There are generally ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L89/00C08K9/12C08K5/50C08K3/38C08K5/3492C08K3/30C08K5/5415C08L29/04C08L23/08C08L67/04C08L23/16C08L23/06C08L7/00C08L75/04
CPCC08K2003/3081C08K2003/387C08L7/00C08L23/06C08L23/08C08L23/16C08L29/04C08L67/04C08L75/04C08L2201/02C08L89/00C08K9/12C08K5/50C08K3/38C08K5/34922C08K3/30C08K5/5415
Inventor 许维星文麒霖石碧吴新涛周建飞丁伟
Owner SICHUAN UNIV