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Straw-powder-containing composite flame-retardant material and preparation method thereof

A composite flame retardant and straw powder technology is applied in the field of composite flame retardant materials containing straw powder and its preparation, which can solve the problems of poor flame retardancy, easy occurrence of mildew, etc. The effect of longevity

Inactive Publication Date: 2019-04-05
中科众创(重庆)秸秆产业研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a composite flame-retardant material containing straw powder and its preparation method, which is used to solve the problem that wallboards or other products produced by using straw have poor flame retardancy and are easy to burn after a period of use. mildew problem

Method used

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  • Straw-powder-containing composite flame-retardant material and preparation method thereof
  • Straw-powder-containing composite flame-retardant material and preparation method thereof
  • Straw-powder-containing composite flame-retardant material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1: Preparation of straw, removing the pith part of the straw, and then drying at 95°C to make the water content of the straw 4.5%; then grinding the straw, and then screening through a pore size of 0.3mm to obtain straw powder ;

[0031] Step 2: Preparation of plastic granules, placing thermoplastics in a twin-screw extruder at a temperature of 150° C. and a screw speed of 60 r / min for melting and granulation to obtain thermoplastic matrix granules;

[0032] Step 3: Take 0.5 parts of hyperbranched graphene and place it in deionized water, and disperse it with ultrasonic waves to obtain an aqueous solution of hyperbranched graphene;

[0033] Step 4: Take 65 parts of straw powder obtained in step 1 and 30 parts of thermoplastic matrix particles obtained in step 2 and put them into a high-speed mixer. During the stirring process, add 15 parts of isocyanic acid and maleic anhydride graft-compatible 10 parts of lubricant, 1 part of lubricant, 15 parts of flame retardan...

Embodiment 2

[0036] Step 1: Preparation of straw, remove the pith part of the straw, and then dry it at 100°C to make the water content of the straw 4%; then grind the straw, and then screen it through a pore size of 0.5mm to obtain straw powder ;

[0037] Step 2: Preparation of plastic granules, placing thermoplastics in a twin-screw extruder with a temperature of 155° C. and a screw speed of 70 r / min for melting and granulation to obtain thermoplastic matrix granules;

[0038] Step 3: taking 3 parts of hyperbranched graphene and placing it in deionized water, and dispersing it with ultrasonic waves to obtain an aqueous solution of hyperbranched graphene;

[0039] Step 4: Take 85 parts of straw powder obtained in step 1 and 50 parts of thermoplastic matrix particles obtained in step 2 and put them into a high-speed mixer. During the stirring process, add 20 parts of isocyanic acid and maleic anhydride graft compatible 12 parts of lubricant, 3 parts of lubricant, 18 parts of flame retarda...

Embodiment 3

[0042] Step 1: Preparation of straw, remove the pith part of the straw, and then dry at 105°C to make the water content of the straw 3%; then grind the straw, and then screen through a pore size of 0.2mm to obtain straw powder ;

[0043] Step 2: Preparation of plastic granules, placing thermoplastics in a twin-screw extruder at a temperature of 150° C. and a screw speed of 60 r / min for melting and granulation to obtain thermoplastic matrix granules;

[0044] Step 3: Take 1 part of hyperbranched graphene and place it in deionized water, and disperse it with ultrasonic waves to obtain an aqueous solution of hyperbranched graphene;

[0045] Step 4: Take 80 parts of straw powder obtained in step 1 and 40 parts of thermoplastic matrix particles obtained in step 2 and put them into a high-speed mixer. During the stirring process, add 18 parts of isocyanic acid and maleic anhydride graft-compatible 11 parts of lubricant, 2 parts of lubricant, 17 parts of flame retardant, 4 parts of ...

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Abstract

The invention belongs to the technical field of novel composite materials, and particularly relates to a straw-powder-containing composite flame-retardant material and a preparation method thereof. The straw-powder-containing composite flame-retardant material comprises, by weight, 65-85 parts of straw powder, 30-50 parts of thermoplastics, 15-20 parts of isocyanic acid, 10-12 parts of Maleic anhydride graft compatibilizers, 5-8 parts of antibacterial agents, 15-18 parts of flame retardants, 1-3 parts of smoke inhibitors, 1-3 parts of lubricating agents, 0.05-0.5 part of antioxidants, 2-5 parts of coupling agents, 5-8 parts of stabilizers and 0.5-3 parts of hyperbranched graphene. The material solves the problem that current wall boards or other products produced by straws are poor in flame resistance and easily mildew.

Description

technical field [0001] The invention belongs to the technical field of new composite materials, and in particular relates to a composite flame-retardant material containing straw powder and a preparation method thereof. Background technique [0002] my country is a country with a serious shortage of forest resources, but at the same time it is a big producer of wood-based panels. The output of wood-based panels in my country has exceeded 310 million cubic meters, and the manufacture of wood-based panels alone consumes more than 420 million cubic meters of forest resources. The huge demand for forest resources and resources The lack of contradiction has become an important factor restricting the country's economic development. On the other hand, my country produces more than 900 million tons of crop residues every year, which is a huge renewable resource. However, the traditional use of straw is mainly as feed, fertilizer, fuel and paper-making raw materials. At present, the ...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L101/00C08L51/00C08L23/06C08K13/02C08K3/32C08K5/47C08K3/34C08K3/22C08K5/13C08K5/52
CPCC08K2003/2224C08K2003/2227C08K2003/323C08L97/02C08L2201/02C08L2205/035C08L2205/16C08L101/00C08L51/00C08L23/06C08K13/02C08K3/32C08K5/47C08K3/34C08K3/22C08K5/13C08K5/52
Inventor 屈朝辉屈志豪袁小丽
Owner 中科众创(重庆)秸秆产业研究院有限公司
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