CN109333740B - Method for preparing clothes hanger by comprehensively utilizing bamboo and wood waste - Google Patents
Method for preparing clothes hanger by comprehensively utilizing bamboo and wood waste Download PDFInfo
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- CN109333740B CN109333740B CN201811276481.3A CN201811276481A CN109333740B CN 109333740 B CN109333740 B CN 109333740B CN 201811276481 A CN201811276481 A CN 201811276481A CN 109333740 B CN109333740 B CN 109333740B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/24—Manufacture or reconditioning of specific semi-finished or finished articles of household utensils, e.g. spoons, clothes hangers, clothes pegs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
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Abstract
The invention belongs to the technical field of clothes hanger processing, and particularly relates to a method for preparing a clothes hanger by comprehensively utilizing bamboo and wood waste, which specifically comprises the following steps: modifying crushed bamboo, preparing a fusion bonding agent, weighing raw materials, mixing, hot pressing, curing, sanding the appearance, coating, drying, hooking, printing a trademark mark, and boxing. The invention has the advantages that: an environment-friendly utilization road is provided for Guangxi bamboo wood leftovers, and researches show that the clothes hanger prepared by pressing is durable, does not crack and has better heat resistance.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of clothes hanger processing, and particularly relates to a method for preparing a clothes hanger by comprehensively utilizing bamboo and wood waste.
[ background of the invention ]
The quantity of bamboo and eucalyptus planted in Guangxi is huge, the quantity of factories which directly process the harvested bamboo and eucalyptus is large every year, but a lot of waste leftovers (bamboo joints, crushed aggregates, scraps and the like) are left after processing, a large amount of agricultural wastes are abandoned or sent to farmers for burning, the utilization rate is extremely low, the air is not completely polluted by combustion, and then the pressed boards are harvested and manufactured by people, but the pressed boards which are simply treated by the bamboo and eucalyptus leftovers are high in investment, poor in quality and low in price, are difficult to carry out for a long time and become waste garbage; the existing company further processes the raw materials into the clothes hanger, so that the pollution of waste garbage can be relieved, and waste is changed into valuable.
The wooden clothes hanger is made of pure solid wood, the cost is high, the wood utilization rate is low, the requirement on the solid wood is high, and the clothes hanger made of the common solid wood has the defects of easiness in cracking and low durability. The plastic clothes hanger is easy to break off after being exposed for a plurality of times, the surface layer can be dissolved, and the plastic clothes hanger can be taken by hands to cause the phenomenon that the fading glue is separated from the hands.
[ summary of the invention ]
The invention aims to provide a method for preparing a clothes hanger by comprehensively utilizing bamboo wood waste, which provides an environment-friendly utilization road for Guangxi bamboo wood waste, and researches show that the clothes hanger prepared by pressing is durable, does not crack and has better heat resistance.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method for preparing a clothes hanger by comprehensively utilizing bamboo wood waste specifically comprises the following steps:
the first step is as follows: crushing crushed bamboo materials by a crusher, drying and crushing the crushed bamboo materials into 100 meshes to obtain bamboo powder; will partiallySoaking bamboo powder in water to make the bamboo powder naturally absorb water, filtering to remove water, rapidly heating to 500 deg.C under 30MPa, maintaining for 5-8min to obtain carbonized bamboo powder, and mixing the carbonized bamboo powder with SiO2Adding the dried limestone into a reaction kettle, and adding nitrogen in a volume ratio of 2-3: 1: rapidly heating the mixed gas of argon to 800-900 ℃ under 20MPa and keeping the temperature for 20-30min under the environment of the mixed gas to obtain modified carbonized bamboo powder;
the second step is that: crushing eucalyptus chips by a crusher, drying and crushing the crushed eucalyptus chips to 100 meshes to obtain eucalyptus chip powder;
the third step: weighing 5-8 parts of glycerol, 8-12 parts of ricinol sodium sulfonate, 6-8 parts of rosin, 10-12 parts of re-dispersible emulsion powder, 3-5 parts of vinyl acetate and 2-3 parts of hydroxypropyl cellulose according to parts by weight, mixing all the raw materials, putting the raw materials into a reaction kettle, stirring, heating to 50-60 ℃, preserving heat for 20-30 minutes, heating to 70 ℃, continuously stirring while preserving heat for 10-20 minutes to obtain a molten binder for later use;
the fourth step: weighing 30-50 parts of eucalyptus chip powder, 20-30 parts of bamboo powder, 10-18 parts of modified carbonized bamboo powder, 20-30 parts of a melting binder, 2-3 parts of magnesium hydroxide and 2-3 parts of aluminum hydroxide according to parts by weight;
the fifth step: mixing the modified carbonized bamboo powder with magnesium hydroxide and aluminum hydroxide to obtain a mixture, adding water which is 1 time of the volume of the mixture, putting the mixture into a reaction kettle, quickly heating to 1200-1300 ℃ under the pressure of 30MPa, and adding nitrogen in a volume ratio of 2-3: 1: stirring and mixing for reaction for 2-3 hours in the environment of argon mixed gas, then rapidly heating to 1800-2000 ℃ under 40MPa, stirring and mixing for reaction for 0.5-1.0 hour, and then spray drying to obtain powder;
and a sixth step: mixing eucalyptus chip powder, bamboo powder, the powder obtained in the fifth step and a fusion bonding agent, putting the mixture into a hot-pressing clothes hanger die, and then carrying out hot pressing, curing and surface sanding;
the seventh step: brushing the coating on the molded clothes hanger obtained in the sixth step, and drying;
eighth step: and (5) hooking the clothes hanger dried in the seventh step, printing trademark marks, and boxing.
Further, in the first step, the carbonized bamboo powder and SiO2And the limestone accounts for 5-8:2-3:3-4 parts by weight.
Further explaining, the coating comprises the following components in parts by weight: 5-8 parts of marigold, 3-5 parts of tarragon, 2-5 parts of short-tube lycoris, 10-15 parts of turpentine, 8-13 parts of wood wax oil, 6-10 parts of perilla oil, 8-12 parts of orange oil, 10-15 parts of bee wax, 8-12 parts of palm wax, 5-8 parts of iso-ethanol and 8-10 parts of polyester resin;
the specific operation of the coating is as follows: weighing raw materials in parts by weight, collecting the whole plant of marigold, tarragon and lycoris radiata, cleaning, naturally drying in the air, cutting, adding 5-10 times volume of ethanol solution for ethanol extraction for 10-12 hours, and filtering to obtain filtrate for later use;
mixing turpentine, wood wax oil, perilla oil and orange oil, then putting the mixture into a reaction kettle, rapidly heating to 250 ℃ at 200 MPa under the protection of nitrogen, reacting for 3-5 hours, then cooling to 180 ℃ at 150 ℃ and preserving heat for 2-3 minutes, then cooling to 120 ℃ at 100 ℃ and preserving heat for 3-5 minutes, then cooling to 60-80 ℃, filtering while hot to obtain a mixed solution, and preserving heat at 60 ℃;
mixing and dissolving the bee wax and the palm wax, adding the ethanol and the polyester resin, mixing, heating to 60 ℃, continuously stirring, and keeping the temperature for 1-2 hours for reaction; then cooling to 40 ℃, adding the filtrate and the mixed solution for standby, mixing and stirring, reacting for 1-2 hours at the temperature of 35 ℃, then standing, naturally cooling and filtering. Further, in the sixth step, the working temperature of the hot pressing is 100-120 ℃, and the working pressure is 50-60 MPa.
Further, in the seventh step, after the coating material is applied, the coating material is subjected to a pressure treatment at 30MPa for 1 to 2 minutes, and then subjected to a drying treatment.
Further, in the eighth step, in the boxing operation, every 5 clothes hangers form a package, and foam plastics are placed on the inner wall of the box.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the clothes hanger adopted in the invention is made of agricultural wastes as main raw materials and canCan provide an environment-friendly utilization path. The technical scheme of the application is that the production is realized after the research and development of our company. The design steps of the method are mutually buckled, and the clothes rack with the same excellent performance as that of the company cannot be prepared once the method is lacked. Researches show that the bamboo powder can conform to the natural structure of the bamboo powder by soaking, absorbing water and naturally expanding, the connecting bonds among atoms are not easy to damage, the bamboo powder is carbonized after high-temperature reaction, compared with the method that natural expansion treatment and direct carbonization treatment are not carried out at first, the activity of the carbonized bamboo powder is reduced, power can be provided for later-stage further modification by adopting the improved step, and the carbonized bamboo powder and SiO2After the limestone is dried, the activity of charged particles on the surface of a substance is increased, then the substance is cracked at high temperature under the condition of protective gas, Si and Ca and the carbonized bamboo powder are mutually soaked, and under the condition that the external surface area of the carbonized bamboo powder is increased, the Si and Ca can be filled into gaps of the carbonized bamboo powder to form a cross-linked reticular structure; under the condition of high temperature, metal elements of magnesium hydroxide and aluminum hydroxide become active, the difference of melting points of the two substances is about 1000 ℃, and the magnesium hydroxide and the aluminum hydroxide are uniformly embedded into the modified carbonized bamboo powder by means of partial pressure and heat generation, so that the agglomeration phenomenon of the magnesium hydroxide and the aluminum hydroxide cannot occur in the modified carbonized bamboo powder; in the hot pressing process, the powder obtained in the fifth step can be uniformly dispersed and embedded in the main matrix of the bamboo powder and eucalyptus chip powder and the molten binder, and the clothes hanger can have uniform performance after hot pressing and solidification. The coating has good oleophylic and hydrophilic properties, can improve the crack resistance of the clothes hanger when coated on the outer surface of the clothes hanger, and can ensure that turpentine, wood wax oil, perilla oil and orange oil are subjected to polymerization reaction under the protection of nitrogen, the temperature is gradually reduced after the polymerization reaction to prevent the sudden reduction from generating bond polymerization, contraction or unstable bond state among the environment-adaptive oleophylic groups and fracture, the temperature reduction procedure of firstly reducing the temperature to 150-180 ℃, then preserving the temperature for 2-3 minutes, then reducing the temperature to 100-120 ℃, preserving the temperature for 3-5 minutes, then reducing the temperature to 60-80 ℃, then filtering the hot mixed solution to obtain the mixed solution, preserving the temperature at 60 ℃ can improve the performance after the polymerization reaction among the oils to keep uniform consistency, thereby being capable of keeping the uniform consistency with the dissolved bee wax, palm wax, iso-ethanol and polyester resin in the subsequent stepsThe dispersion that the mixing can be even is inlayed among the material to improve the oleophylic performance homogeneous of paint after melting, the oil absorption that appears different levels on the experimental back clothes hanger that can not appear beating oil completely and with the application choose for use the ethanol extract of marigold, tarragon, short-tube lycoris after mixing, can melt in the material, play the effect that improves the moth-proof worm.
[ detailed description ] embodiments
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, specific embodiments thereof will be described in detail with reference to the following examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example 1:
1. preparing raw materials: the coating comprises the following components in parts by weight: 5 parts of marigold, 3 parts of tarragon, 2 parts of lycoris radiata, 10 parts of turpentine, 8 parts of wood wax oil, 6 parts of perilla oil, 8 parts of orange oil, 10 parts of bee wax, 8 parts of palm wax, 5 parts of iso-ethanol and 8 parts of polyester resin;
the specific operation of the coating is as follows: weighing raw materials in parts by weight, collecting the whole plant of marigold, tarragon and lycoris radiata, cleaning, naturally airing water, cutting, adding an ethanol solution with the volume 5 times that of the plant, extracting for 10 hours, and filtering to obtain a filtrate for later use;
mixing turpentine, wood wax oil, perilla oil and orange oil, putting into a reaction kettle, rapidly heating to 200 ℃ under 30MPa under the protection of nitrogen, reacting for 3 hours, then cooling to 150 ℃, preserving heat for 2 minutes, then cooling to 100 ℃, preserving heat for 3 minutes, then cooling to 60 ℃, filtering while hot to obtain a mixed solution, and preserving heat at 60 ℃;
mixing and dissolving the bee wax and the palm wax, adding the ethanol and the polyester resin, mixing and heating to 60 ℃, continuously stirring, and keeping the temperature for 1 hour to react; then cooling to 40 ℃, adding the filtrate and the mixed solution for standby, mixing and stirring, reacting for 1 hour at the temperature of 35 ℃, standing, naturally cooling and filtering.
2. The above prepared raw materials were used in the following protocol:
the method for preparing the clothes hanger by comprehensively utilizing the bamboo wood waste comprises the following steps:
the first step is as follows: crushing crushed bamboo materials by a crusher, drying and crushing the crushed bamboo materials into 100 meshes to obtain bamboo powder; soaking part of bamboo powder in water to make the bamboo powder naturally absorb water, filtering to remove water, rapidly heating to 500 deg.C under 30MPa, maintaining for 5min to obtain carbonized bamboo powder, and mixing the carbonized bamboo powder with SiO2And after the limestone is dried, adding the limestone into a reaction kettle, and adding nitrogen in a volume ratio of 2: 1: rapidly heating the mixed gas of argon to 800 ℃ under the pressure of 20MPa and keeping the temperature for 20min under the environment of the mixed gas to obtain modified carbonized bamboo powder;
the carbonized bamboo powder and SiO2The weight part ratio of the limestone is 5:2: 3;
the second step is that: crushing eucalyptus chips by a crusher, drying and crushing the crushed eucalyptus chips to 100 meshes to obtain eucalyptus chip powder;
the third step: weighing 5 parts of glycerol, 8 parts of ricinol sodium sulfonate, 6 parts of rosin, 10 parts of redispersible latex powder, 3 parts of vinyl acetate and 2 parts of hydroxypropyl cellulose according to parts by weight, mixing all the raw materials, putting the raw materials into a reaction kettle, stirring, heating to 50 ℃, preserving heat for 20 minutes, heating to 70 ℃, continuously stirring, preserving heat for 10 minutes to obtain a molten binder for later use;
the fourth step: weighing 30 parts of eucalyptus chip powder, 20 parts of bamboo powder, 10 parts of modified carbonized bamboo powder, 20 parts of melting binder, 2 parts of magnesium hydroxide and 2 parts of aluminum hydroxide according to parts by weight;
the fifth step: mixing the modified carbonized bamboo powder with magnesium hydroxide and aluminum hydroxide to obtain a mixture, adding water which is 1 time of the volume of the mixture, putting the mixture into a reaction kettle, quickly heating to 1200 ℃ under the pressure of 30MPa, and adding nitrogen in a volume ratio of 2: 1: stirring, mixing and reacting for 2 hours in an argon mixed gas environment, then rapidly heating to 1800 ℃ under 40MPa, stirring, mixing and reacting for 0.5 hour, and then spray-drying to obtain powder;
and a sixth step: mixing eucalyptus chip powder, bamboo powder, the powder obtained in the fifth step and a fusion binder, putting the mixture into a hot-pressing clothes hanger die, and then carrying out hot pressing, curing and surface sanding under the conditions that the temperature is 100 ℃ and the pressure is 50 MPa;
the seventh step: after uniformly brushing the coating on the surface of the molded clothes hanger obtained in the sixth step, pressurizing for 1 minute at the pressure of 30MPa, and then drying;
eighth step: and (4) hooking the clothes hangers dried in the seventh step, printing trademark marks, packing and boxing 5 clothes hangers by one bundle, and placing foam plastics on the inner wall of the box.
Example 2:
1. preparing raw materials: the coating comprises the following components in parts by weight: 8 parts of marigold, 5 parts of tarragon, 5 parts of lycoris radiata, 15 parts of turpentine, 13 parts of wood wax oil, 10 parts of perilla oil, 12 parts of orange oil, 15 parts of bee wax, 12 parts of palm wax, 8 parts of iso-ethanol and 10 parts of polyester resin;
the specific operation of the coating is as follows: weighing raw materials in parts by weight, collecting the whole plant of marigold, tarragon and lycoris radiata, cleaning, naturally airing water, cutting, adding 10 times of ethanol solution for extracting for 12 hours, and filtering to obtain filtrate for later use;
mixing turpentine, wood wax oil, perilla oil and orange oil, putting into a reaction kettle, rapidly heating to 250 ℃ under 30MPa under the protection of nitrogen, reacting for 5 hours, then cooling to 180 ℃, preserving heat for 3 minutes, then cooling to 120 ℃, preserving heat for 5 minutes, then cooling to 80 ℃, filtering while hot to obtain a mixed solution, and preserving heat at 60 ℃;
mixing and dissolving the bee wax and the palm wax, adding the ethanol and the polyester resin, mixing and heating to 60 ℃, continuously stirring, and keeping the temperature for 2 hours for reaction; then cooling to 40 ℃, adding the filtrate and the mixed solution for standby, mixing and stirring, reacting for 2 hours at the temperature of 35 ℃, standing, naturally cooling and filtering.
2. The above prepared raw materials were used in the following protocol:
the method for preparing the clothes hanger by comprehensively utilizing the bamboo wood waste comprises the following steps:
the first step is as follows: crushing crushed bamboo materials by a crusher, drying and crushing the crushed bamboo materials into 100 meshes to obtain bamboo powder; soaking part of bamboo powder in water to make the bamboo powder naturally absorb water, filtering to remove water, rapidly heating to 500 deg.C under 30MPa, maintaining for 8min to obtain carbonized bamboo powder, and mixing the carbonized bamboo powder with SiO2And after drying the limestone, adding the limestone into a reaction kettle, and adding nitrogen in a volume ratio of 3: 1: rapidly heating the mixed gas of argon to 900 ℃ under the environment of the mixed gas and the pressure of 20MPa, and keeping the temperature for 30min to obtain modified carbonized bamboo powder;
the carbonized bamboo powder and SiO2The weight part ratio of the limestone to the water is 8:3: 4;
the second step is that: crushing eucalyptus chips by a crusher, drying and crushing the crushed eucalyptus chips to 100 meshes to obtain eucalyptus chip powder;
the third step: weighing 8 parts of glycerol, 12 parts of ricinol sodium sulfonate, 8 parts of rosin, 12 parts of re-dispersible latex powder, 5 parts of vinyl acetate and 3 parts of hydroxypropyl cellulose according to parts by weight, mixing all the raw materials, putting the raw materials into a reaction kettle, stirring, heating to 60 ℃, preserving heat for 30 minutes, heating to 70 ℃, continuously stirring, preserving heat for 20 minutes to obtain a molten binder for later use;
the fourth step: weighing 50 parts of eucalyptus chip powder, 30 parts of bamboo powder, 18 parts of modified carbonized bamboo powder, 30 parts of a melting binder, 3 parts of magnesium hydroxide and 3 parts of aluminum hydroxide according to parts by weight;
the fifth step: mixing the modified carbonized bamboo powder with magnesium hydroxide and aluminum hydroxide to obtain a mixture, adding water which is 1 time of the volume of the mixture, putting the mixture into a reaction kettle, quickly heating to 1300 ℃ under the pressure of 30MPa, and adding nitrogen in a volume ratio of (3: 1): stirring, mixing and reacting for 3 hours under the environment of argon mixed gas, then rapidly heating to 2000 ℃ under 40MPa, stirring, mixing and reacting for 1.0 hour, and then spray-drying to obtain powder;
and a sixth step: mixing eucalyptus chip powder, bamboo powder, the powder obtained in the fifth step and a fusion binder, putting the mixture into a hot-pressing clothes hanger die, and then carrying out hot pressing, curing and surface sanding under the conditions that the temperature is 120 ℃ and the pressure is 60 MPa;
the seventh step: after uniformly brushing the coating on the surface of the molded clothes hanger obtained in the sixth step, pressurizing for 2 minutes at the pressure of 30MPa, and then drying;
eighth step: and (4) hooking the clothes hangers dried in the seventh step, printing trademark marks, packing and boxing 5 clothes hangers by one bundle, and placing foam plastics on the inner wall of the box.
Example 3:
1. preparing raw materials: the coating comprises the following components in parts by weight: 6 parts of marigold, 4 parts of tarragon, 3 parts of lycoris radiata, 12 parts of turpentine, 11 parts of wood wax oil, 8 parts of perilla oil, 10 parts of orange oil, 12 parts of bee wax, 10 parts of palm wax, 6 parts of iso-ethanol and 9 parts of polyester resin;
the specific operation of the coating is as follows: weighing raw materials in parts by weight, collecting the whole plant of marigold, tarragon and lycoris radiata, cleaning, naturally airing water, cutting, adding an ethanol solution with the volume 8 times of that of the plant, extracting with ethanol for 11 hours, and filtering to obtain a filtrate for later use;
mixing turpentine, wood wax oil, perilla oil and orange oil, putting into a reaction kettle, rapidly heating to 220 ℃ under 30MPa under the protection of nitrogen, reacting for 4 hours, then cooling to 160 ℃, preserving heat for 2.5 minutes, then cooling to 110 ℃, preserving heat for 4 minutes, then cooling to 68 ℃, filtering while hot to obtain a mixed solution, and preserving heat at 60 ℃;
mixing and dissolving the bee wax and the palm wax, adding the ethanol and the polyester resin, mixing and heating to 60 ℃, continuously stirring, and keeping the temperature for 1.5 hours for reaction; then cooling to 40 ℃, adding the filtrate and the mixed solution for standby, mixing and stirring, reacting for 1.5 hours at the temperature of 35 ℃, then standing, naturally cooling and filtering.
2. The above prepared raw materials were used in the following protocol:
the method for preparing the clothes hanger by comprehensively utilizing the bamboo wood waste comprises the following steps:
the first step is as follows: crushing crushed bamboo materials by a crusher, drying and crushing the crushed bamboo materials into 100 meshes to obtain bamboo powder; soaking part of bamboo powder in water to make the bamboo powder naturally absorb water, filtering to remove water, rapidly heating to 500 deg.C under 30MPa, and maintaining for 6minThen obtaining carbonized bamboo powder, and then mixing the carbonized bamboo powder and SiO2And after the limestone is dried, adding the limestone into a reaction kettle, and adding nitrogen in a volume ratio of 2: 1: rapidly heating the mixed gas of argon to 850 ℃ under the pressure of 20MPa and keeping the temperature for 26min under the environment of the mixed gas to obtain modified carbonized bamboo powder;
the carbonized bamboo powder and SiO2The weight part ratio of the limestone is 7:2: 3;
the second step is that: crushing eucalyptus chips by a crusher, drying and crushing the crushed eucalyptus chips to 100 meshes to obtain eucalyptus chip powder;
the third step: weighing 7 parts of glycerol, 10 parts of ricinol sodium sulfonate, 7 parts of rosin, 11 parts of re-dispersible latex powder, 4 parts of vinyl acetate and 2.5 parts of hydroxypropyl cellulose according to parts by weight, mixing all the raw materials, putting the raw materials into a reaction kettle, stirring, heating to 55 ℃, keeping the temperature for 25 minutes, heating to 70 ℃, continuously stirring, keeping the temperature for 15 minutes to obtain a molten binder for later use;
the fourth step: weighing 42 parts of eucalyptus chip powder, 25 parts of bamboo powder, 14 parts of modified carbonized bamboo powder, 26 parts of molten binder, 2.5 parts of magnesium hydroxide and 2.5 parts of aluminum hydroxide according to parts by weight;
the fifth step: mixing the modified carbonized bamboo powder with magnesium hydroxide and aluminum hydroxide to obtain a mixture, adding water which is 1 time of the volume of the mixture, putting the mixture into a reaction kettle, quickly heating to 1250 ℃ under the pressure of 30MPa, and adding nitrogen in a volume ratio of 3: 1: stirring and mixing the mixture for reaction for 2.5 hours under the environment of argon mixed gas, then quickly heating the mixture to 1900 ℃ under 40MPa, stirring and mixing the mixture for reaction for 0.8 hour, and then spray-drying the mixture to obtain powder;
and a sixth step: mixing eucalyptus chip powder, bamboo powder, the powder obtained in the fifth step and a fusion binder, putting the mixture into a hot-pressing clothes hanger die, and then carrying out hot pressing, curing and surface sanding under the conditions that the temperature is 110 ℃ and the pressure is 55 MPa;
the seventh step: after the coating is brushed on the molded clothes hanger with uniform appearance obtained in the sixth step, the molded clothes hanger is also subjected to pressurization treatment for 1.5 minutes under the pressure of 30MPa, and then is subjected to drying treatment;
eighth step: and (4) hooking the clothes hangers dried in the seventh step, printing trademark marks, packing and boxing 5 clothes hangers by one bundle, and placing foam plastics on the inner wall of the box.
Comparative example 1:
the preparation method and the raw materials of this example are basically the same as those of example 1, except that: the first step is that crushed bamboo is crushed by a crusher, dried and crushed to 100 meshes to obtain bamboo powder, then part of the bamboo powder is soaked by water and continuously stirred to accelerate water absorption expansion of the bamboo powder, after filtration and dehydration, the temperature is rapidly raised to 500 ℃ under 30MPa for 5min to obtain carbonized bamboo powder, and then the carbonized bamboo powder and SiO are mixed2And after the limestone is dried, adding the limestone into a reaction kettle, and adding nitrogen in a volume ratio of 2: 1: and (3) rapidly heating the mixed gas of argon to 800 ℃ under the condition of 20MPa in the mixed gas environment, and keeping the temperature for 20min to obtain the modified carbonized bamboo powder.
Comparative example 2:
the preparation method and the raw materials of this example are basically the same as those of example 1, except that: the first step is as follows: crushing crushed bamboo materials by a crusher, drying and crushing the crushed bamboo materials into 100 meshes to obtain bamboo powder; soaking part of bamboo powder in water to make the bamboo powder naturally absorb water, filtering to remove water, rapidly heating to 500 deg.C under 30MPa, maintaining for 5min to obtain carbonized bamboo powder, and adding no SiO2And adding the dried limestone into a reaction kettle for reaction.
Comparative example 3:
the preparation method and the raw materials of this example are basically the same as those of example 1, except that: and step five, mixing the modified carbonized bamboo powder with magnesium hydroxide and aluminum hydroxide to obtain a mixture, adding water which is 1 time of the volume of the mixture, putting the mixture into a reaction kettle, and adding nitrogen in a volume ratio of 2: 1: rapidly heating to 1800 ℃ under 40MPa in the environment of argon mixed gas, stirring, mixing and reacting for 0.5 hour, and then spray drying to obtain powder.
Comparative example 4:
the preparation method and the raw materials of this example are basically the same as those of example 1, except that: without the fifth step, the sixth step: mixing eucalyptus chip powder, bamboo powder, modified carbonized bamboo powder, magnesium hydroxide, aluminum hydroxide and a melting binder, putting the mixture into a hot-pressing clothes hanger die, and then carrying out hot pressing, curing and surface sanding under the conditions that the temperature is 100 ℃ and the pressure is 50 MPa.
Test one:
the clothes hangers prepared in examples 1 to 3 and comparative examples 1 to 4 were subjected to the following property tests: ultraviolet aging performance, tensile strength and impact strength, wherein the ultraviolet aging performance is that the wavelength is 340nm, and the radiation intensity is 0.8W/m2Now, irradiation is carried out for 8h at 50 ℃ and then a condensation cycle of 4h at 40 ℃. Here, the UV aging resistance is measured mainly by the decrease in bending strength.
As can be seen from the above table, with the solutions of embodiments 1 to 3 of the present invention, the clothes hanger is superior to the comparative examples 1 to 4 in flame retardancy, bending strength, tensile strength and impact strength, respectively. Wherein, from the view of flame retardant property, the oxygen index of examples 1-3 is greater than that of comparative examples 1-4, which shows that the flame retardant property of examples 1-3 is more excellent, compared with the comparative example 1 in which the treatment of bamboo powder has little influence on the flame retardant property, in comparative example 2 in which SiO2 and limestone are not added to modify the carbonized bamboo powder, so that the silicon-calcium-carbon structure in the clothes hanger is not formed, thereby greatly reducing the flame retardant property, the phenomenon of agglomeration of flame retardant substances can be generated in comparative example 3, the flame retardant effect is not good, the flame retardant property in comparative example 4 is the worst, probably because the flame retardant substances are not uniformly dispersed in the hot pressing process. From the view of bending strength, the treatment of the comparative example 1 breaks down the relation between carbon-carbon bonds in the bamboo powder, so that the toughness of the bamboo powder cannot be maintained in the performance of the unmodified bamboo powder, the bending resistance is reduced, the silicon-calcium-carbon structure is not formed in the comparative example 2, the bending resistance of the clothes hanger can be greatly reduced, and the treatment of the comparative examples 3 and 4 has little influence on the bending resistance of the clothes hanger. From the view point of tensile strength, the higher the tensile strength is, the stronger the mechanical property of the clothes rack is, and the tensile strength is arranged according to the following conditions that example 3 is larger than example 2, example 1 is larger than comparative example 4, comparative example 3 is larger than comparative example 2, and comparative example 1 is larger than comparative example 3. From the viewpoint of impact strength, the higher the impact strength is, the stronger the mechanical properties of the clothes hanger are, and the arrangement of the impact strength is, example 3 > example 2 > example 1 > comparative example 4 > comparative example 3 > comparative example 2 > comparative example 1.
And (2) test II:
control group 1: the preparation scheme is the same as that of example 1, and the composition of the coating is basically the same as that of example 1, except that: 5 parts of marigold, 3 parts of tarragon and 2 parts of lycoris radiata are not added.
Control group 2: the preparation scheme is the same as that of example 1, and the composition of the coating is basically the same as that of example 1, except that: 5 parts of marigold is not added.
Control group 3: the preparation scheme is the same as that of example 1, and the composition of the coating is basically the same as that of example 1, except that: 5 parts of marigold and 3 parts of tarragon are not added.
Control group 4: the preparation scheme is the same as that of example 1, and the composition of the coating is basically the same as that of example 1, except that: 3 parts of tarragon and 2 parts of lycoris radiata are not added.
Control group 5: the preparation was carried out in the same manner as in example 1, and the coating composition was the same as in example 1, except that: the preparation method of the coating comprises the steps of carrying out alcohol extraction on 5 parts of marigold, 3 parts of tarragon and 2 parts of lycoris radiata, mixing and heating the mixture with 10 parts of turpentine, 8 parts of wood wax oil, 6 parts of perilla oil, 8 parts of orange oil, 10 parts of bee wax, 8 parts of palm wax, 5 parts of iso-ethanol and 8 parts of polyester resin to 60 ℃, and then stirring and reacting for 5 hours.
Control group 6: the preparation method is the same as that of example 1, and the paint is a wood paint which is commercially available.
Blank control: the step of preparing the clothes hanger is not carried out with coating treatment.
The following performance recordings were made for examples 1-3 versus controls 1-6, a blank:
cracking condition: each group had 50 hangers, 10 groups (examples 1-3 and control groups 1-6, blank control), irradiated at a relative humidity of 8%, an illumination intensity of 3500lx, for 240 hours, and then observed for cracking of the hanger body.
Insect prevention: each of 50 hangers, 10 groups (examples 1 to 3, comparison group 1 to 6, blank comparison), was kept ventilated in a cool room with a relative humidity of 50%, and after standing for 8 months, the body of the hanger was observed for worm damage.
As can be seen from the above table, the solutions of examples 1 to 3 of the present application have more excellent anti-cracking and anti-insect effects.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. A method for preparing a clothes hanger by comprehensively utilizing bamboo and wood waste is characterized by comprising the following steps: the method specifically comprises the following steps:
the first step is as follows: crushing crushed bamboo materials by a crusher, drying and crushing the crushed bamboo materials into 100 meshes to obtain bamboo powder; soaking part of bamboo powder in water to make the bamboo powder naturally absorb water, filtering to remove water, rapidly heating to 500 deg.C under 30MPa, maintaining for 5-8min to obtain carbonized bamboo powder, and mixing the carbonized bamboo powder with SiO2Adding the dried limestone into a reaction kettle, and adding nitrogen in a volume ratio of 2-3: 1: rapidly heating the mixed gas of argon to 800-900 ℃ under 20MPa and keeping the temperature for 20-30min under the environment of the mixed gas to obtain modified carbonized bamboo powder; the carbonized bamboo powder and SiO2The weight part ratio of the limestone is 5-8:2-3: 3-4;
the second step is that: crushing eucalyptus chips by a crusher, drying and crushing the crushed eucalyptus chips to 100 meshes to obtain eucalyptus chip powder;
the third step: weighing 5-8 parts of glycerol, 8-12 parts of ricinol sodium sulfonate, 6-8 parts of rosin, 10-12 parts of subdivided latex powder, 3-5 parts of vinyl acetate and 2-3 parts of hydroxypropyl cellulose, mixing all the raw materials, putting the raw materials into a reaction kettle, stirring, heating to 50-60 ℃, preserving heat for 20-30 minutes, heating to 70 ℃, continuously stirring and preserving heat for 10-20 minutes to obtain a molten binder for later use;
the fourth step: weighing 30-50 parts of eucalyptus chip powder, 20-30 parts of bamboo powder, 10-18 parts of modified carbonized bamboo powder, 20-30 parts of a melting binder, 2-3 parts of magnesium hydroxide and 2-3 parts of aluminum hydroxide according to parts by weight;
the fifth step: mixing the modified carbonized bamboo powder with magnesium hydroxide and aluminum hydroxide to obtain a mixture, adding water which is 1 time of the volume of the mixture, putting the mixture into a reaction kettle, quickly heating to 1200-1300 ℃ under the pressure of 30MPa, and adding nitrogen in a volume ratio of 2-3: 1: stirring and mixing for reaction for 2-3 hours in the environment of argon mixed gas, then rapidly heating to 1800-2000 ℃ under 40MPa, stirring and mixing for reaction for 0.5-1.0 hour, and then spray drying to obtain powder;
and a sixth step: mixing eucalyptus chip powder, bamboo powder, the powder obtained in the fifth step and a fusion bonding agent, putting the mixture into a hot-pressing clothes hanger die, and then carrying out hot pressing, curing and surface sanding;
the seventh step: brushing the coating on the molded clothes hanger obtained in the sixth step, and drying;
the coating comprises the following components in parts by weight: 5-8 parts of marigold, 3-5 parts of tarragon, 2-5 parts of short-tube lycoris, 10-15 parts of turpentine, 8-13 parts of wood wax oil, 6-10 parts of perilla oil, 8-12 parts of orange oil, 10-15 parts of bee wax, 8-12 parts of palm wax, 5-8 parts of iso-ethanol and 8-10 parts of polyester resin;
the specific operation of the coating is as follows: weighing raw materials in parts by weight, collecting the whole plant of marigold, tarragon and lycoris radiata, cleaning, naturally drying in the air, cutting, adding 5-10 times volume of ethanol solution for ethanol extraction for 10-12 hours, and filtering to obtain filtrate for later use; mixing turpentine, wood wax oil, perilla oil and orange oil, then putting the mixture into a reaction kettle, rapidly heating to 250 ℃ at 200 MPa under the protection of nitrogen, reacting for 3-5 hours, then cooling to 180 ℃ at 150 ℃ and preserving heat for 2-3 minutes, then cooling to 120 ℃ at 100 ℃ and preserving heat for 3-5 minutes, then cooling to 60-80 ℃, filtering while hot to obtain a mixed solution, and preserving heat at 60 ℃; mixing and dissolving the bee wax and the palm wax, adding the ethanol and the polyester resin, mixing, heating to 60 ℃, continuously stirring, and keeping the temperature for 1-2 hours for reaction; then cooling to 40 ℃, adding the filtrate and the mixed solution for standby, mixing and stirring, reacting for 1-2 hours at the temperature of 35 ℃, then standing, naturally cooling and filtering;
eighth step: and (5) hooking the clothes hanger dried in the seventh step, printing trademark marks, and boxing.
2. The method for preparing the clothes hanger by comprehensively utilizing the bamboo and wood waste material according to claim 1, which is characterized by comprising the following steps of: in the sixth step, the working temperature of the hot pressing is 100-120 ℃, and the working pressure is 50-60 MPa.
3. The method for preparing the clothes hanger by comprehensively utilizing the bamboo and wood waste material according to claim 1, which is characterized by comprising the following steps of: in the seventh step, after the paint is applied, the pressure treatment is further performed for 1 to 2 minutes at a pressure of 30MPa, followed by drying treatment.
4. The method for preparing the clothes hanger by comprehensively utilizing the bamboo and wood waste material according to claim 1, which is characterized by comprising the following steps of: and eighthly, in the boxing operation, every 5 clothes hangers form a package, and foam plastics are placed on the inner wall of the box.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101380755A (en) * | 2008-10-24 | 2009-03-11 | 莫志权 | Processing production method of bamboo clothes stand |
| CN101531869B (en) * | 2008-11-21 | 2011-12-07 | 董学明 | Wood wax oil and preparation technology thereof |
| CN104068075A (en) * | 2014-06-19 | 2014-10-01 | 南京麦思德餐饮管理有限公司 | Mosquito-repelling wood wax oil and preparation method thereof |
| CN105123749B (en) * | 2015-06-16 | 2018-11-13 | 浙江工业大学 | A kind of modification bamboo charcoal composite material and its application in preparing antiseptic |
| CN105064168B (en) * | 2015-08-12 | 2017-09-29 | 江苏联创人造草坪股份有限公司 | A kind of recyclable chinampa and preparation method thereof |
| CN105462519B (en) * | 2015-12-31 | 2017-07-18 | 东莞铭丰生物质科技有限公司 | A kind of world hamper and environment-friendly water-based adhesive and preparation method thereof |
| CN106189643B (en) * | 2016-08-05 | 2018-08-10 | 河北晨阳工贸集团有限公司 | A kind of preparation method of aqueous antistatic coating |
| CN107914331A (en) * | 2017-11-23 | 2018-04-17 | 荔浦庆祥竹木有限公司 | A kind of method that clothes hanger is made using sawdust as raw material |
| CN107877661A (en) * | 2017-11-23 | 2018-04-06 | 荔浦庆祥竹木有限公司 | A kind of method that clothes hanger is made using wood chip |
| CN108656299A (en) * | 2018-05-13 | 2018-10-16 | 施文杰 | A kind of method for producing of Bamboo-made clothing hanger |
| CN108676494B (en) * | 2018-05-22 | 2020-08-21 | 南开大学 | Antibacterial wood wax oil for woodware and preparation method thereof |
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