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A plant fiber, powder, chip composite material extrusion molding process

A composite material and plant fiber technology, which is applied in the manufacturing process of plant fiber and crumb materials, and in the field of powder, can solve the problems of non-extensibility, uneven density of pressed products, and failure to meet quality requirements, etc., to achieve excellent texture and density. The effect of low and high bonding strength

Active Publication Date: 2019-06-14
浙江新木材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And in " a kind of manufacture method of bakelite-free wood fiber parts " (application number 201110411549.6), do not use any viscose to directly press plant fiber, powder, chip, but because most plant fiber, powder, chip itself are not It has ductility, so that the density of the pressed product cannot be uniform, and it is easy to manufacture defective products that do not meet the quality requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]Embodiment 1, a kind of plant fiber, powder, shavings class composite material extrusion injection molding process, at first 70g described glutinous rice starch, 200g described distilled water, 13g described sodium hydroxide are put into beaker and stirred, stirring temperature The temperature was 45° C., and the stirring time was 3 minutes, so that the materials were uniformly mixed. The beaker was then stirred at a temperature between 45°C and 50°C for 20 minutes to allow gelatinization of the starch. After the starch is completely gelatinized, stop heating and stir the beaker and cool it for at least 10 minutes. After cooling, add 26g of the talcum powder into the beaker, and then heat and stir for at least 5 minutes, because all the water at this time has been formed with the glutinous rice starch. Gelatinization reaction, after adding talcum powder, talc powder does not react with water but only physically contacts with starch paste. After the talcum powder is even...

Embodiment 2

[0017] Embodiment 2, a kind of plant fiber, powder, shavings class composite material extrusion injection molding process, at first 80g described cornstarch, 250g described distilled water, 15g described sodium hydroxide are put into beaker and stirred, stirring temperature The temperature was 45° C., and the stirring time was 3 minutes, so that the materials were uniformly mixed. The beaker was then stirred at a temperature between 45°C and 50°C for 20 minutes to allow gelatinization of the starch. After the starch is completely gelatinized, stop heating and stir the beaker and cool it for at least 10 minutes. After cooling, add 30g of the talcum powder into the beaker, and then heat and stir for at least 5 minutes, because all the moisture at this time has occurred with the cornstarch. Gelatinization reaction, after adding talcum powder, talc powder does not react with water but only physically contacts with starch paste. After the talcum powder is evenly mixed, the beaker ...

Embodiment 3

[0018] Embodiment 3, a kind of plant fiber, powder, shavings class composite material extrusion injection molding process, at first the described rice starch of 50g, the described distilled water of 150g, the described sodium hydroxide of 10g are put into beaker and stirred, stirring temperature The temperature was 45° C., and the stirring time was 3 minutes, so that the materials were uniformly mixed. The beaker was then stirred at a temperature between 45°C and 50°C for 20 minutes to allow gelatinization of the starch. After the starch is completely gelatinized, stop heating and stir the beaker and cool it for at least 10 minutes. After cooling, add 20g of the talcum powder into the beaker, and then heat and stir for at least 5 minutes, because all the water at this time has been formed with the rice starch. Gelatinization reaction, after adding talcum powder, talc powder does not react with water but only physically contacts with starch paste. After the talcum powder is ev...

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Abstract

The invention discloses a squeezing molding process for plant fiber, powder and chip composite materials, and relates to a manufacturing and forming process utilizing plant materials. The squeezing molding process mainly comprises four steps. Compared with the prior art, squeezing molding is carried out by utilizing thermosetting property of plant composite materials and high ductility generated under high pressure at a high temperature. A product manufactured by the squeezing molding process has the characteristics of being high in internal bonding strength, excellent in texture, low in density, non-toxic and environmentally-friendly, capable of being quickly degraded and the like, has various performance indexes as good as those of a solid wood product, is superior to products prepared from other biomass composite materials, and has cost much lower than that of the solid wood product and other biomass composite material products; and the squeezing molding process can be suitable for furniture industry, and also can be suitable for industrial application.

Description

technical field [0001] The invention relates to a molding process using plant materials, in particular to a molding process for plant fiber, powder and scrap materials. Background technique [0002] Wooden products have been widely used in human life and production from ancient times to the present. Generally speaking, wooden products are basically made of solid wood materials, but now the utilization rate of solid wood materials in the processing process is low, only about 35%, and the waste is serious. At the same time The manufacturing process is complicated, labor costs and equipment costs are high, time-consuming and labor-intensive, and wood resources are scarce, and some high-quality wood is facing extinction, which makes the cost of solid wood products remain high. In order to improve production efficiency and save costs, many products are now made of plant fibers, powder, and shavings, which greatly improves the use efficiency of wood, and because of the low cost, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/76C08L97/02C08L3/02C08K3/34
CPCB29C45/76C08L97/02C08L3/02C08K3/22C08K3/34
Inventor 陈波罗恒韩祎葛政统赵存挺孙庆丰
Owner 浙江新木材料科技有限公司