CN104530735A - Method for preparing decorative material by utilizing modified plant straws - Google Patents

Abstract

The invention relates to a method for preparing a decorative material by utilizing modified plant straws. The preparation method comprises the following steps: with 100 parts of plant straws by weight as a cardinal number, weighing 20 parts of waste plastic particles, 3 parts of bamboo powder, 0.5 part of curcumin, 2 parts of calcined shell, 1 part of metal magnesium powder, 5 parts of calcined kaolin, 1 part of a fire retardant, 2 parts of linear polyethylene, 0.8 part of a silane coupling agent, 1 part of hydroxypropyl methylcellulose, 0.8 part of modified corn starch, 1 part of soybean oil, 0.5 part of cyclohexanone and 2 parts of nanometer silicon dioxide; airing the plant straws, smashing, drying straw powder, sending the straw powder to a reaction kettle to react, taking out the straw powder, cooling, and sending the straw powder to a refrigerating device to obtain modified straw powder; mixing the modified straw powder and other materials, pouring the mixture to a grinding machine and grinding for 2 hours; and carrying out hot melting extrusion to mold. The decorative material has high fire resistance, corrosion resistance, moisture resistance, steeping resistance, worm-eaten resistance, dimensional stability and the like.

Description

Utilize improved plant straw for the method for finishing material

Technical field

The present invention relates to decorative materials technology, be specifically related to a kind of improved plant straw that utilizes for the method for finishing material.

Background technology

Need when house fitting-up to use dalle miscellaneous, such as top ceiling, floor, wallboard etc., manufacture finishing material mainly gypsum, plastics or the metal etc. of these dalles.In the manufactured materials of above-mentioned dalle, plastics and gypsum are one of finishing material paid close attention to by people, utilize merely gypsum produced dalle texture poor, non-watertight, poor durability; And utilize merely plastics produced dalle hardness lower, cost is high, volatile go out the pollutent such as formaldehyde, pollute household.

China produces agricultural crop straw every year more than 700,000,000 ton, can have more than 600,000,000 ton for what utilize.Except part is used for also field, feed and except utilizing as domestic energy, the stalk of more than 50% is is not yet develop and useedd, and peasant generally burns them as refuse, not only causes the wasting of resources, goes back severe contamination environment; On the other hand, China is the country that the per capita forest reserves are little in the world, and add that construction and decoration and furniture industry use timber in a large number, the area of woods of China reduces year by year, ecotope and human kind sustainable development is caused to having a strong impact on.

Along with industrial expansion, the application of plastics is throughout the every field of industrial or agricultural and daily life, the waste or used plastics rubbish of whole world generation every day cannot be estimated, but its large pressure of tool caused environment is apparent, in order to process these plastic garbages, existing method is generally landfill, burning etc.But because the natural degradation of common plastic garbage is chronic, generally will could degrade through more than 100 years, and also can produce the objectionable impuritiess such as a large amount of methane in degradation process, therefore landfill method has obtained denouncing of a lot of expert; And obnoxious flavour, flue dust etc. that burning method produces directly impact environment.Simultaneously because plastics are as petroleum chemicals, its main raw material produced is oil, and it is a kind of Nonrenewable resources, and current Global Oil contention is more and more fierce, crude oil cost is more and more higher, and therefore recycling for plastic prod is the best approach solving plastic garbage problem at present.

Chinese patent (CN1654179A) discloses a kind of technique and formula of high-strength environmental protection homogeneous board, isocyanic ester and water is equipped with after adopting the straw dedusting of pulverizing, after being uniformly mixed, first carry out paving prefabricating, hot repressing, be 180 DEG C-200 DEG C in temperature, on the thermocompressor of hot pressing pressure 3-4MPa/ unit square, hot pressing forms.

Chinese patent (CN1225866A) discloses a kind of method utilizing agricultural crop straw and husk as raw material to make finishing material, its method is to 5-80 order by raw material pulverizing, add the isocyanates or modified isocyanate resin glue that account for total amount 5-20%, after stirring, stand is distributed in structure mould, molded curing under 80-150 DEG C and 2-15MPa pressure.Above patent documentation is owing to adopting hydraulic pressure (mold pressing) moulding process, and be batch process, the scrap rate of finished product is high, causes production cost high, is therefore difficult to apply.In order to overcome the deadly defect of hydraulic pressure (mold pressing) moulding process, people turn to use extrusion moulding.

For another example Chinese patent (CN101024305A) disclose a kind of utilize rape stalk to make finishing material and preparation method, but its board materials production cost prepared is higher, and plate surface is coarse, and color and luster is undesirable, has peculiar smell.

Summary of the invention

Technical problem to be solved by this invention is to provide that a kind of physics, chemical property are good, preparation simply utilizes waste or used plastics, straw for the method for energy-saving decoration material.

Technical problem to be solved by this invention realizes by the following technical solutions:

Utilize improved plant straw for a method for finishing material, it is characterized in that: method steps is as follows,

1) in straw 100 weight part for radix, then take waste or used plastics particle 20 parts, 3 parts, bamboo powder, curcumine 0.5 part, calcined shell 2 parts, metal magnesium powder 1 part, calcined kaolin 5 parts, fire retardant 1 part, linear polyethylene 2 parts, silane coupling agent 0.8 part, HPMC 1 part, modified corn starch 0.8 part, soybean oil 1 part, ring ethyl ketone 0.5 part, nano silicon 2 parts;

2) straw is carried out natural drying, to moisture content within 8%, cutting and grinding, cross 90 mesh sieves, and obtained stalk powder is stand-by;

3) stalk powder is dried to moisture content within 5%, stalk powder is sent in reactor, in control reactor, temperature is at 80-85 DEG C, at the uniform velocity stirring reaction 20-30 minute, take out stalk powder and be cooled to normal temperature, then send into refrigerating apparatus, under subzero 15 DEG C of environment freezing 40 minutes, carry out cold-resistant process, after completing, obtained modified straw powder is stand-by;

4) modified straw powder and waste or used plastics particle, bamboo powder, curcumine, calcined shell, metal magnesium powder, calcined kaolin, fire retardant, linear polyethylene, silane coupling agent, HPMC, modified corn starch, soybean oil, ring ethyl ketone and nano silicon are mixed, together drop in shredder, under the environment of 0 DEG C, continuously grinding 2 hours under the condition that rotating speed is 60 revs/min;

5) by step 4) in mixture 180 DEG C temperature, 25MPa pressure effect under, put into hot runner co-extruding mould and carry out hot melt extruded, then enter forming mould, through mould shape, cooling, traction and cutting be finished product.

The invention has the beneficial effects as follows:

1) the present invention adopts waste as production starting material, and the product of preparation has higher intensity and hardness, acid and alkali-resistance, anticorrosive, indeformable, containing formaldehyde, the feature that easily reclaims, be a kind of new green environment protection material;

2) special treatment process be have employed to starting material, make the product prepared have higher stability, resistance to deterioration, the consistence of color and persistence, heat insulation, soundproof effect good;

3) whole production process non-environmental-pollution, resource utilization is high, facility investment is few, cost is low, extensive market, and prospect is considerable, the applicating and exploitation success of this technology, to greatly improve stalk and the reuse of waste plastics situation in current rural area, and improve farm crop added value in postpartum, increase farmers' income;

4) finishing material of the present invention has high flame retardant and anticorrosion, moistureproof, the advantage such as anti-soaking, Anti-moth-eating and dimensional stability.

Embodiment

The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.

Embodiment 1

Utilize improved plant straw for a method for finishing material, method steps is as follows,

1) in straw 100 weight part for radix, then take waste or used plastics particle 20 parts, 3 parts, bamboo powder, curcumine 0.5 part, calcined shell 2 parts, metal magnesium powder 1 part, calcined kaolin 5 parts, fire retardant 1 part, linear polyethylene 2 parts, silane coupling agent 0.8 part, HPMC 1 part, modified corn starch 0.8 part, soybean oil 1 part, ring ethyl ketone 0.5 part, nano silicon 2 parts;

2) straw is carried out natural drying, to moisture content within 8%, cutting and grinding, cross 90 mesh sieves, and obtained stalk powder is stand-by;

3) stalk powder is dried to moisture content within 5%, stalk powder is sent in reactor, in control reactor, temperature is at 80-85 DEG C, at the uniform velocity stirring reaction 20-30 minute, take out stalk powder and be cooled to normal temperature, then send into refrigerating apparatus, under subzero 15 DEG C of environment freezing 40 minutes, carry out cold-resistant process, after completing, obtained modified straw powder is stand-by;

4) modified straw powder and waste or used plastics particle, bamboo powder, curcumine, calcined shell, metal magnesium powder, calcined kaolin, fire retardant, linear polyethylene, silane coupling agent, HPMC, modified corn starch, soybean oil, ring ethyl ketone and nano silicon are mixed, together drop in shredder, under the environment of 0 DEG C, continuously grinding 2 hours under the condition that rotating speed is 60 revs/min;

5) by step 4) in mixture 180 DEG C temperature, 25MPa pressure effect under, put into hot runner co-extruding mould and carry out hot melt extruded, then enter forming mould, through mould shape, cooling, traction and cutting be finished product.

More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (1)

1. utilize improved plant straw for a method for finishing material, it is characterized in that: method steps is as follows,

1) in straw 100 weight part for radix, then take waste or used plastics particle 20 parts, 3 parts, bamboo powder, curcumine 0.5 part, calcined shell 2 parts, metal magnesium powder 1 part, calcined kaolin 5 parts, fire retardant 1 part, linear polyethylene 2 parts, silane coupling agent 0.8 part, HPMC 1 part, modified corn starch 0.8 part, soybean oil 1 part, ring ethyl ketone 0.5 part, nano silicon 2 parts;

2) straw is carried out natural drying, to moisture content within 8%, cutting and grinding, cross 90 mesh sieves, and obtained stalk powder is stand-by;

3) stalk powder is dried to moisture content within 5%, stalk powder is sent in reactor, in control reactor, temperature is at 80-85 DEG C, at the uniform velocity stirring reaction 20-30 minute, take out stalk powder and be cooled to normal temperature, then send into refrigerating apparatus, under subzero 15 DEG C of environment freezing 40 minutes, carry out cold-resistant process, after completing, obtained modified straw powder is stand-by;

4) modified straw powder and waste or used plastics particle, bamboo powder, curcumine, calcined shell, metal magnesium powder, calcined kaolin, fire retardant, linear polyethylene, silane coupling agent, HPMC, modified corn starch, soybean oil, ring ethyl ketone and nano silicon are mixed, together drop in shredder, under the environment of 0 DEG C, continuously grinding 2 hours under the condition that rotating speed is 60 revs/min;

5) by step 4) in mixture 180 DEG C temperature, 25MPa pressure effect under, put into hot runner co-extruding mould and carry out hot melt extruded, then enter forming mould, through mould shape, cooling, traction and cutting be finished product.