Flame-retardant straw-based panel and manufacturing method thereof

A wood-based panel and straw technology, applied in chemical instruments and methods, manufacturing tools, flat products, etc., can solve the problems of endangering the health of users, imbalance of carbon-nitrogen ratio, and consumption of large wood, etc., and achieve good waterproof and insect-proof, easy to hold Nail force, the effect of improving the internal bonding strength

Inactive Publication Date: 2018-07-06
吕晓峰
View PDF10 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] 2. Imbalance of carbon and nitrogen ratio
[0025] With the development of social economy, people's requirements for the quality of life are getting higher and higher. At present, multi-layer wooden boards, fine wood boards and medium density boards are often used in industries such as architectural decoration and furniture production. Among them, these three kinds of decorative panels have common disadvantages: they are not fireproof, contain a large amount of harmful substances, seriously endanger the health of users, need to consume a large amount of wood, and the contradiction between the huge demand for forest resources and the lack of resources has become a constraint. An important factor for the country's economic development. On the other hand, my country produces more than 900 million tons of crop straw residues every year, which is a huge renewable resource.
To sum up, from a purely technical point of view, the core technical problem of crop straw wood-based panels at home and abroad is firstly the problem of gluing. Due to the application of MDI resin, the technology of modern straw wood-based panels has developed in stages, but even In this way, compared with wood-based panels, there is still a considerable gap; especially in the collection and preparation of raw materials, production equipment, and product costs, whether it can be widely used and promoted, it is still necessary to find a development that suits China's national conditions. path

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
  • Flame-retardant straw-based panel and manufacturing method thereof
  • Flame-retardant straw-based panel and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The raw material composition of the flame retardant straw wood-based panel of this embodiment is as follows:

[0069] 1. Preparation of binder for flame retardant straw wood-based panels:

[0070] Preparation of binder: 1) Add polyvinyl alcohol PVA17-99 and water into the reaction kettle in turn, the mass ratio of polyvinyl alcohol to water is 0.15:1, stir evenly at a speed of 100rpm, heat to 120°C, At a speed of 250rpm, maintain for 3h;

[0071] 2) After the mixed material obtained in step 1) is cooled to room temperature, add ethylene copolymer emulsion VAE718, the mass ratio of the mixed material to ethylene copolymer emulsion is 1:1, the temperature is 45°C, and the stirring speed is 600rpm Under the rotating speed, maintain 2h.

[0072] 3) Add calcium chloride with 10% of the mass of the product obtained in step 2), and stir evenly at room temperature at a stirring speed of 600-800 rpm, and discharge to obtain the binder.

[0073] 2. Preparation of flame-retarda...

Embodiment 2

[0082] The raw material composition of the flame retardant straw wood-based panel of this embodiment is as follows:

[0083] 1. Preparation of binder for flame retardant straw wood-based panels:

[0084] Preparation of binder: 1) Add polyvinyl alcohol PVA17-88 and water into the reaction kettle in sequence, the mass ratio of polyvinyl alcohol to water is 0.45:1, stir evenly at a speed of 150rpm, heat to 120°C, At a speed of 280rpm, maintain for 4h;

[0085] 2) After the mixed material obtained in step 1) is cooled to room temperature, add ethylene copolymer emulsion VAE710, the mass ratio of the mixed material to ethylene copolymer emulsion is 0.95:1, the temperature is 45°C, and the stirring speed is 620rpm Maintain 1.5h under the speed of rotation.

[0086] 3) Add 8% magnesium chloride by mass of the product obtained in step 2), stir evenly at room temperature at a stirring speed of 600 rpm, and discharge to obtain the binder.

[0087] 2. Preparation of flame-retardant st...

Embodiment 3

[0096] The raw material composition of the flame retardant straw wood-based panel of this embodiment is as follows:

[0097] 1. Preparation of binder for flame retardant straw wood-based panels:

[0098] Preparation of binder: 1) Add alkyl phosphoric acid modified polyvinyl alcohol and water into the reaction kettle in sequence, the mass ratio of alkyl phosphoric acid modified polyvinyl alcohol to water is 0.95:1, stir evenly at 150rpm, heat After reaching 150°C, maintain it for 3.5 hours at a rotational speed of 380rpm;

[0099] 2) After the mixed material obtained in step 1) is cooled to room temperature, it is added to ethylene copolymer emulsion VAE716, the mass ratio of the mixed material to ethylene copolymer emulsion VAE716 is 1.25:1, at a temperature of 45°C, the stirring speed is At the speed of 600rpm, keep it for 3h.

[0100] 3) Add magnesium chloride of 5% by mass of the product obtained in step 2), stir evenly at room temperature at a stirring speed of 650 rpm, ...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a flame-retardant straw-based panel. The flame-retardant straw-based panel comprises a bare panel, and a facing layer which is arranged on at least one surface of the bare panel, wherein the bare panel comprises the following components in parts by weight: 5-80 parts of straw particles, 2-25 parts of adhering agent, and 5-65 parts of flame retardant. The flame-retardant straw-based panel has outstanding comprehensive performances such as high efficiency performance, flame retarding performance, smokeless performance and nontoxic performance. The invention also providesa manufacturing method of the flame-retardant straw-based panel. The method is characterized in that the bare panel is manufactured by a hot compression and fixation technology; the step of forming isavoided, so that the production efficiency is greatly improved, and the production cost is decreased.

Description

Technical field [0001] The invention belongs to the technical field of artificial panels, and specifically relates to an environmentally friendly flame-retardant artificial panel made of straw as the main raw material and a preparation method thereof. Background technique [0002] The amount of crop straw in our country is increasing year by year and has exceeded 1 billion tons. As the degree of clean energy in rural areas of our country continues to improve, cooking with straw has become a distant history. Returning straw to the field can not only effectively improve the soil structure, significantly increase soil nutrients, and enhance the soil's fertilizer retention and fertilizer supply capabilities, but also greatly reduce the serious environmental pollution caused by on-site burning of straw, reduce fertilizer input, save production costs, and improve It has increased crop yields, produced good economic benefits, and effectively curbed the phenomenon of straw burning. ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N3/00B27N3/10B27N1/02C09J131/04C09J129/04C09J11/04B32B9/02B32B9/04B32B7/12B32B33/00B32B37/12
CPCB27N1/0209B27N1/0227B27N3/002B27N3/02B27N3/10B32B7/12B32B9/02B32B9/04B32B33/00B32B37/12B32B2307/3065B32B2307/70B32B2307/7265B32B2419/00C08K2003/162C08K2003/166C08L2205/025C08L2205/03C09J11/04C09J131/04C08L29/04C08K3/16
Inventor 吕晓峰
Owner 吕晓峰
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap