Unlock instant, AI-driven research and patent intelligence for your innovation.

Bamboo fiber composite material as well as preparation method and application thereof

A composite material and bamboo fiber technology, applied in the field of bamboo fiber materials, can solve problems such as adverse environmental effects, affecting the mechanical properties of composite materials, and prone to fracture

Pending Publication Date: 2021-01-15
RES INST OF FORESTRY NEW TECH CHINESE ACAD OF FORESTRY
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But, in the prior art about the preparation method of automobile interior material, usually also can use binder, as patent CN106042414A discloses a kind of wood fiber secondary molding method to prepare automobile interior molded profile technology, with phenolic resin, Thermosetting resin materials such as isocyanates are used as adhesives to prepare automotive interior molding profiles. Another example is patent CN1265049A, which discloses a composite material prepared from wood fibers, hemp fibers and synthetic fibers. In the preparation process, phenolic adhesives are used. Agents, melamine adhesives, isocyanate adhesives, a large number of non-reusable thermosetting resins will inevitably have an adverse impact on the environment, and omitting the adhesive will affect the mechanical properties of the composite material. The obtained composite material is used in the preparation of Automobile interior parts prone to breakage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bamboo fiber composite material as well as preparation method and application thereof
  • Bamboo fiber composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The invention provides a kind of preparation method of bamboo fiber composite material, comprising:

[0024] The bamboo fiber and the polymer fiber are sequentially carded, paved and needled to obtain a bamboo fiber composite material;

[0025] The length of the bamboo fiber is 30-150 mm, and the diameter of the bamboo fiber is 50-250 μm.

[0026] The present invention uses bamboo fiber as raw material, and bamboo fiber has high mechanical strength, has longer fiber form, is beneficial to obtaining the composite material of excellent mechanical property, and, prepares composite material with bamboo fiber and polymer fiber as raw material, omits bonding The use of the agent is beneficial to protect the environment.

[0027] In the present invention, the length of the bamboo fiber is 30-150 mm, preferably 50-150 mm, more preferably 100-150 mm; the diameter of the bamboo fiber is 50-250 μm, preferably 80-200 μm, more preferably 80 ~150 μm. The present invention controls...

Embodiment 1

[0047] The 3-year-old bamboo is removed from the green and knots, and then soaked in an aqueous solution of calcium hydroxide with a mass concentration of 10% for 15 days, and then soaked in an aqueous solution of 1,4-butanediol with a mass concentration of 20%, and then soaked for 5 hours. placed in H 2 o 2 and Na 2 SiO 3 Soaked in the mixed solution for 0.5h, where, H 2 o 2 The mass concentration in the mixture is 2%, Na 2 SiO 3 The mass concentration in the mixed solution is 0.5%, and the soaking temperature is 100° C. to obtain bamboo fibers; wherein, the length of the bamboo fibers is 50-150 mm, the diameter is 80-200 μm, and the lignin removal rate is 75%;

[0048] The above-mentioned bamboo fiber and polypropylene fiber are mixed according to the mass ratio of 50%: 50%, and then carded and paved successively, and finally the bamboo fiber composite material is obtained through needle punching, wherein the density of needle punching is 20 punches / cm 2 , the surfa...

Embodiment 2

[0053] Remove the green and knots of the 2-year-old bamboo, then soak it in an aqueous solution of calcium hydroxide with a mass concentration of 20% for 10 days, and then soak it in an aqueous solution of 1,4-butanediol with a mass concentration of 30% for 6 hours, then placed in H 2 o 2 and Na 2 SiO 3 Soaked in the mixed solution for 0.5h, where, H 2 o 2 The mass concentration in the mixture is 2%, Na 2 SiO 3 The mass concentration in the mixed solution is 0.5%, and the soaking temperature is 120° C. to obtain bamboo fibers; wherein, the length of the bamboo fibers is 30-80 mm, the diameter is 100-220 μm, and the lignin removal rate is 75%;

[0054] The above-mentioned bamboo fiber and polypropylene fiber are mixed according to the mass ratio of 45%: 55%, then carded and paved in sequence, and finally the bamboo fiber composite material is obtained through needle punching, wherein the density of needle punching is 30 punches / cm 2 , the surface density of the obtaine...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of a bamboo fiber composite material. The preparation method comprises the following steps of carding, paving and needling bamboo fibers and polymer fibersin sequence to obtain the bamboo fiber composite material, wherein the length of the bamboo fibers ranges from 30 mm to 150 mm, and the diameter of the bamboo fibers ranges from 50 micrometers to 250micrometers. According to the preparation method, the bamboo fiber composite material is prepared from the bamboo fibers with the certain length and diameter, the bamboo fibers are moderate in hardness and good in mechanical property, the situation that the fibers are prone to breakage due to the bamboo fibers are too soft, and compaction cannot be conducted during paving due to the fact that thebamboo fibers are too hard is avoided, and the composite material which is excellent in mechanical property and not prone to breakage is obtained advantageously; and the bamboo fibers and the polymerfibers are arranged in one direction through carding, so that the mechanical property of the composite material is improved, and breakage during large-angle and deep mold pressing is prevented. Results of the embodiment show that the static bending strength of an automotive interior part prepared from the bamboo fiber composite material provided by the invention after mould pressing is 45 MPa.

Description

technical field [0001] The invention relates to the technical field of bamboo fiber materials, in particular to a bamboo fiber composite material and its preparation method and application. Background technique [0002] The automotive interior system is an important part of the car body, and the design workload of the interior system accounts for more than 60% of the car styling design workload, far exceeding the car shape, and is one of the most important parts of the car body. Not only for decoration, but also for their rich functionality, safety, and engineering attributes. [0003] At present, automotive interior products are mainly prepared by mixing glass fiber or hemp fiber with polypropylene and other resins, and then molded. Due to the use of degradable hemp fiber, it is a green and environmentally friendly material. However, in the production of hemp fiber When retting is required, it is easy to cause foul smell in the water body, which is not good for the environ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D04H1/4382D04H1/46D01C1/02
CPCD01C1/02D04H1/4382D04H1/46
Inventor 唐启恒郭文静常亮高黎
Owner RES INST OF FORESTRY NEW TECH CHINESE ACAD OF FORESTRY