Preparation method of modified hemp fiber reinforcing material for auto ceiling

A technology for automotive roofs and reinforcing materials, which is applied in the field of automotive interior composite materials, can solve problems such as complex processes, high costs, and uneven mixing, and achieve simple and easy preparation processes, high toughness, impact resistance, and comprehensive performance excellent effect

Inactive Publication Date: 2017-12-19
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is not only complicated in process and high in cost, but superfine calcium carbonate is also very easy to agglomerate in the mixing process, resulting in uneven mixing. The ramie fiber with advanced properties hinders the industrialization of biomass fiber materials and is applied to automotive interior materials

Method used

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  • Preparation method of modified hemp fiber reinforcing material for auto ceiling
  • Preparation method of modified hemp fiber reinforcing material for auto ceiling
  • Preparation method of modified hemp fiber reinforcing material for auto ceiling

Examples

Experimental program
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Embodiment 1

[0031] see Figure 1-3 As shown, the technical solution adopted in the present invention is: a modified hemp fiber reinforced material for automobile roof and its preparation method, wherein the modified hemp fiber reinforced material for automobile roof is made of the following raw materials in parts by weight: ramie fiber 72 16 parts of anhydrous calcium chloride, 18 parts of anhydrous sodium carbonate, 15 parts of sodium hydroxide, 4 parts of acetic acid, 26 parts of ethanol, 19 parts of magnesium acetate tetrahydrate, 9 parts of disodium edetate and JFC permeate 12 doses.

[0032] Further, the preparation method of the modified hemp fiber reinforced material for the automobile roof comprises the following specific steps:

[0033] 1). Immerse the degummed ramie fibers in an aqueous solution of 15 parts by weight of sodium hydroxide at a bath ratio of 1:150, soak for 2 hours in a water bath at 50°C, place the reactor in an ultrasonic cleaner, and The alkaline-treated ramie...

Embodiment 2

[0037] see Figure 1-3 As shown, the technical solution adopted in the present invention is: a modified hemp fiber reinforced material for automobile roof and its preparation method, wherein the modified hemp fiber reinforced material for automobile roof is made of the following raw materials in parts by weight: ramie fiber 75 , 21 parts of anhydrous calcium chloride, 20 parts of anhydrous sodium carbonate, 21 parts of sodium hydroxide, 6 parts of acetic acid, 30 parts of ethanol, 25 parts of magnesium acetate tetrahydrate, 10 parts of disodium edetate and JFC permeate 15 doses.

[0038] Further, the preparation method of the modified hemp fiber reinforced material for the automobile roof comprises the following specific steps:

[0039] 1). Immerse the degummed ramie fibers in an aqueous solution of 21 parts by weight of sodium hydroxide at a bath ratio of 1:150. After soaking in a water bath at 60°C for 3 hours, place the reactor in an ultrasonic cleaner. The alkaline-treat...

Embodiment 3

[0043] see Figure 1-3As shown, the technical solution adopted in the present invention is: a modified hemp fiber reinforced material for automobile roof and its preparation method, wherein the modified hemp fiber reinforced material for automobile roof is made of the following raw materials in parts by weight: ramie fiber 70 16 parts of anhydrous calcium chloride, 16 parts of anhydrous sodium carbonate, 14 parts of sodium hydroxide, 2 parts of acetic acid, 24 parts of ethanol, 17 parts of magnesium acetate tetrahydrate, 9 parts of disodium edetate and JFC permeate 10 doses.

[0044] Further, the preparation method of the modified hemp fiber reinforced material for the automobile roof comprises the following specific steps:

[0045] 1). Immerse the degummed ramie fibers in an aqueous solution of 14 parts by weight of sodium hydroxide at a bath ratio of 1:150. After soaking in a water bath at 40°C for 2 hours, place the reactor in an ultrasonic cleaner. The alkaline-treated r...

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Abstract

The invention discloses a modified hemp fiber reinforcing material for an auto ceiling, and a preparation method of the modified hemp fiber reinforcing material for the auto ceiling. The modified hemp fiber reinforcing material for the auto ceiling is prepared from the following raw materials by weight: 70-75 parts of ramie fiber, 16-21 parts of anhydrous calcium chloride, 16-20 parts of anhydrous sodium carbonate, 14-21 parts of sodium hydroxide, 2-6 parts of acetic acid, 24-30 parts of ethyl alcohol, 17-25 parts of tetrahydrate magnesium acetate, 9-10 parts of ethylene diamine tetraacetic acid, and 10-15 parts of a JFC penetrating agent. The prepared modified hemp fiber reinforcing material for the auto ceiling is high in strength, tenacity and impact resistance, better solves the problem of interface bonding of a hemp fiber and other polymer materials for the auto ceiling, has excellent comprehensive performances, is low in cost and simple and feasible in preparation process, and is green and environmentally friendly; and the obtained material can be used for manufacturing the reinforcing fiber material for the auto ceiling as well as auto interior materials.

Description

technical field [0001] The invention relates to the technical field of interior trim composite materials for automobiles, in particular to a method for preparing modified hemp fiber reinforced materials for automobile ceilings. Background technique [0002] Hemp fiber has the characteristics of high strength and initial modulus, light weight, environmental protection, and abundant sources. It is a natural plant fiber with good wear resistance and corrosion resistance. Ramie fiber has a strong performance close to that of glass fiber, and can achieve a lightweight composite effect with materials. In the production of automotive interior materials, hemp fiber is often used to replace glass fiber and is an excellent reinforcement material. However, the ramie fiber has the hydrophilic effect of natural fibers, and the interfacial bonding problem caused by the hydrophilicity rich in hydroxyl groups on the surface and the hydrophobicity of other high polymer materials used in aut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08K13/02C08K3/16C08K3/26C08K5/098C08K5/17
CPCC08K13/02C08K3/16C08K3/26C08K5/098C08K5/175C08K2003/162C08K2003/262C08L97/02
Inventor 杜兆芳李继丰许云辉
Owner ANHUI AGRICULTURAL UNIVERSITY
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