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A kind of crop straw environmental protection flame retardant glueless fiberboard and preparation method thereof

A technology for crop straw and fiberboard, applied in the field of straw fiberboard, can solve problems such as hindering the popularization and application of interior decoration materials, lack of strong gluing effect of synthetic resin, no flame retardant effect, etc. the effect of strength

Active Publication Date: 2021-03-23
霸州市光洋人造板制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of strong cohesion of adhesives such as synthetic resins, the non-adhesive wood-based panels made of crop straws often have low strength and poor dimensional stability, which cannot meet market demand; The flame retardant effect of the synthetic resin adhesive itself, the crop straw glue-free wood-based panels are almost all made of flammable biomass raw materials, and the fire resistance is poor. Promotion and application of

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
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  • A kind of crop straw environmental protection flame retardant glueless fiberboard and preparation method thereof
  • A kind of crop straw environmental protection flame retardant glueless fiberboard and preparation method thereof
  • A kind of crop straw environmental protection flame retardant glueless fiberboard and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The crop straw environmental flame retardant flame retardant fiberboard is prepared from the following method:

[0047] 1) Take the dry wheat straw and dry sorghum straw to cut to a length of 20-30 mm, soaked in water for 12h with room temperature, extrusion remove excess moisture, and the water content is between 60% -65% Soft Film and Silica straw softening materials;

[0048] 2) The softening of the wheat straw is softened, the steam temperature is 185 ° C, the blasting pressure is 3.5 MPa, the blast is 2.5 min, and the steam is blasting naturally dry, wormwat straw fiber;

[0049] The sorghum straw softened material is steam blast, the steam temperature is 195 ° C, the blasting pressure is 3.5 MPa, the blasting time is 3.5 min, and the steam is naturally dried after the steam is blasting. Sorghum straw fiber;

[0050] 3) After mixing nanocium carbonate, nano-zinc oxide and nanocarbonate according to a mass ratio of 2.5: 0.3: 0.2, the mass ratio of the nanoparticles and ...

Embodiment 2

[0058] The crop straw environmental flame retardant flame retardant fiberboard is prepared from the following method:

[0059] 1) Take the dry wheat straw and the dry sorghum straw to cut to a length of 20-30 mm, soaked out with water for 14 h, extruded the extra moisture, and the water content between 60% -65%, soft, and Silica straw softening materials;

[0060] 2) The softening of the wheat straw is softened and the steam temperature is 190 ° C, the blasting pressure is 3.0 MPa, the blast is 3.0 min, and the steam is blasting naturally dry, wormwat straw fiber;

[0061] The sorghum straw softened material is steam blast, the steam temperature is 200 ° C, the blasting pressure is 3.0 MPa, the blasting time is 4.0min, the steam is naturally dried, and the sorghum straw fiber;

[0062] 3) After mixing nano carbonate, nano-zinc oxide and nanocarbonate according to the mass ratio of 2.5: 0.35: 0.15, the mass ratio of the nanoparticles and the silane coupling agent is 3: 1. After ult...

Embodiment 3

[0070] The crop straw environmental flame retardant flame retardant fiberboard is prepared from the following method:

[0071] 1) Take the drying wheat straw and the dry sorghum straw separately cut to a length of 20-30 mM, soaked out with a room temperature for 16 h, extruded the excess moisture, and the water content between 60% -65% softening material and Silica straw softening materials;

[0072] 2) The softening of the wheat straw is softened, the steam temperature is 190 ° C, the blasting pressure is 3.2 MPa, the blasting time is 3.0 min, and the steam blasts are naturally dried, and wheat straw fiber;

[0073] The sorghum straw softened material is steam blasting, the steam temperature is 195 ° C, the blasting pressure is 3.2MPa, the blasting time is 3.5 min, the steam is naturally dried, and the sorghum straw fiber;

[0074] 3) After mixing nanocium carbonate, nano-zinc oxide and nanocarbonate in mass ratio of 2.5: 0.4: 0.1, the mass ratio of the nanoparticles and the sila...

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Abstract

The invention relates to an environment-friendly flame-retardant non-adhesive fiberboard of crop straw and a preparation method thereof. The fiberboard is prepared by the following steps that 1 ) wheat straw and sorghum straw are taken to be cut off correspondingly, and the wheat straw and the sorghum straw are soaked in water to obtain a softened material; 2 ) steam explosion is correspondingly carried out on the softened material to obtain wheat straw fiber and sorghum straw fiber; 3 ) nano calcium carbonate, nano zinc oxide are mixed with nano copper oxide, and modifying is carried out toobtain a modified additive A; nano zinc borate, the nano zinc oxide are mixed with the nano copper oxide, and modifying is carried out to obtain a modified additive B; 4 ) the wheat straw fiber and the sorghum straw fiber are mixed with the modified additive A to obtain a core layer mixture; the wheat straw fiber is mixed with the modified additive B to obtain a surface layer mixture; and 5 ) thecore layer mixture is taken as a core layer, the surface layer mixture is taken as a surface layer to be laid and pre-pressed to obtain a slab, after hot-pressing forming and post-treatment are carried out, the environment-friendly flame-retardant non-adhesive fiberboard is obtained. The fiberboard has no formaldehyde release and has good mechanical property, good anti-water, moisture-proof, anti-corrosion and antibacterial properties; and good in fireproof and flame-retardant effects, and suitable for popularization and application.

Description

Technical field [0001] The present invention belongs to the technical field of straw fiberboard, and in particular to a crop straw environmental flame retardant fiberboard and a preparation method thereof. Background technique [0002] my country is an agricultural country, crop straw resources are very rich. Straw is a general term of the stalks (ear) of mature crops, usually refers to wheat, rice, corn, potatoes, oil, cotton, sugar cane and other crops in harvesting seeds, is a low cost, multi-purpose Regeneration biological resources. The main chemical composition content of crop straw (cellulose, hemicellulose and lignin) is similar to wood, which can be used to replace wood manufacturing artificial panels; According to statistics, the straw of every two acres of farmland is equivalent to one acre of forest land for one year. Wood growth. The crop straw is used in the artificial board industry. It is an effective way to solve the contradiction between the lack of wood supply ...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/04B27N3/12B27N3/18
CPCB27N3/04B27N3/12B27N3/18B27N3/183
Inventor 李建州
Owner 霸州市光洋人造板制造有限公司
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