KR100809052B1 - A process for the preparation of resins and its product - Google Patents

Abstract

A method for preparing a modified synthetic resin, and a molded product prepared by using the modified synthetic resin are provided to obtain a modified synthetic resin which irradiates far infrared rays and emits anions. A method for preparing a modified synthetic resin comprises the steps of mixing 70.5-73.5 wt% of formalin, 0.53-0.73 wt% of triethanolamine, 0.09-0.19 wt% of hexamine, 20.71-23.71 wt% of methanol and 1.94-2.14 wt% of sodium hydroxide in a reactor to adjust pH to be 10-11, stirring it at 55-60 deg.C for 10 min, injecting 24.0-30.0 wt% of melamine to 70.0-76.0 wt% of the stirred mixture, and indirectly heating it at 80-90 deg.C to alkylate the polar group of melamine; adding 38.56-41.56 wt% of formalin, 0.11-0.31 wt% of triethanolamine, 0.04-0.07 wt% of hexamine, 0.04-0.06 wt% of formic acid and 0.09-0.19 wt% of phosphate to the obtained first resin reactant to mix them, adjusting pH to be 8-9, and injecting 26.0-34.0 wt% of melamine to 66.0-74.0 wt% of the obtained mixture to react it at 85-95 deg.C for 1 hour; mixing 79.7-97.55 wt% of the obtained second resin reactant with 0.11-0.22 wt% of epichlorohydrin, 0.16-0.36 wt% of ethylene chlorohydrin, 0.42-0.72 wt% of methyltrimethoxysilane, 0.42-0.72 wt% of N-(beta-aminomethyl)-gamma-aminopropyltrimethoxysilane and 0.23-0.43 wt% of water-soluble silicone in a reactor for 10 min, and mixing 19.98-39.93 wt% of the mixture with 0.03-0.13 wt% of zinc stearate, 12.24-15.24 wt% of silica gel and 40.75-45.70 wt% of a mineral powder for 30 min; and drying it at 60-100 deg.C for 1-1.5 hours, and pulverizing it by a size of 250-300 mesh.

Description

Manufacturing method of modified synthetic resin and molded product having far infrared and anion effect using the same {A process for the preparation of resins and its product}

The present invention relates to a method for producing a modified synthetic resin and a molded product having an effect of far infrared rays and anions using the same, and more particularly, to prepare a modified synthetic resin by mixing mineral components generating far infrared rays and anions with a synthetic resin containing melamine as a main raw material. The present invention relates to a method for producing a modified synthetic resin that can produce various molded products such as medical devices, ornaments, building materials, household goods, etc., which are beneficial to the human body, and molded products having far-infrared and anion effects using the same.

Generally, it is well known that synthetic resins have flame retardant properties due to the amino groups in the molecule because melamine is used as the main raw material. However, since the adhesiveness with minerals is weak, minerals cannot be used as fillers, and only pulp is used as fillers. And flame resistance, flame retardancy, and the like has been raised.

Therefore, by mixing various minerals with synthetic resins, it is possible to produce various new materials of high quality with excellent adhesion, surface hardness, flame resistance, flame retardancy, and abrasion resistance by supplementing and improving all the disadvantages of existing synthetic resin products. In addition to generating far-infrared rays and negative ions, molding materials using new materials can be used for medical devices, building materials, interior decoration, and beds. Can escape.

Far-infrared rays are infrared rays, which have a longer wavelength than visible light, but are not constant but often reach invisible rays of 5 to 25 microns, and because of their long wavelengths, they penetrate deeply into objects and easily vibrate molecules of the material themselves. There is a property such as to give a bio-ceramic container using this property is currently being developed.

Negative ions generally act to purify the blood, increase resistance to infectious conditions, regulate the autonomic nervous system, purify the air, remove dust and sterilize, stabilize the body's nerves, restore fatigue, increase food intake, and promote cell activation. It is known.

The present invention is to solve the above problems of the prior art, the purpose of which is the main component of melamine and formalin, and mixed with various catalysts, the primary raw material of the synthetic resin through the first to third resin reaction process By alkylating the polar group in the melamine molecule to enable compatibility with oil-soluble resins and water-soluble resins, it is possible to compensate for the disadvantages of existing melamine resins, and to strengthen hardness, flame retardancy, and flame retardancy by strengthening adhesion with minerals as fillers. It is to provide a modified synthetic resin that can improve the workability during injection molding and to generate far-infrared rays and anions at the highest level by extending the storage period in which the liquid resin is kept in a clear yellow color.

In addition, by allowing the mixing of minerals, for example, tourmaline, jade, ganban stone, ocher, amethyst, etc., it is possible to produce a variety of new materials of very high quality, medical devices, building materials and interior decoration that generates far-infrared and negative ions, which are beneficial to the human body. The present invention provides a molded product having far-infrared and anion effects using a modified synthetic resin capable of manufacturing a molded product such as a bed and a bed.

In order to achieve the above object, a modified synthetic resin manufacturing method according to the present invention and a molded product having far infrared and anion effects using the same will be described in detail. First of all, the method of preparing modified synthetic resin is

1) Formalin 73.5-70.5 wt%, Triethanolamine 0.73-0.53 wt%, Hexamine 0.19-0.09 wt%, Methanol 23.71-20.71 wt%, Caustic soda 2.14-1.94 wt% are added and mixed to pH 10- 11, and after stirring for 10 minutes at 55 ~ 60 ℃ below, 24.0 ~ 30.0 wt% of melamine to 70.0 ~ 76.0% by weight of the stirred mixture was reacted for 1 hour while indirect heating to 80 ~ 90 ℃ melamine molecules A first resin reaction step for alkylating the polar group in the polymer,

2) From 58.31 to 48.31 wt% of the primary resin reactant produced in the first resin reaction step, formaline 41.56 to 38.56 wt%, triethanolamine 0.31 to 0.11 wt%, hexamine 0.07 to 0.04 wt%, formic acid 0.06 to 0.04 wt% , 0.19 to 0.09% by weight of phosphate was added and mixed to adjust the pH to 8-9, and 26.0 to 34.0% by weight of melamine was added to 74.0 to 66.0% by weight of the mixture and reacted at 85 to 95 ° C for 1 hour. Fair,
3) 0.22 to 0.11% by weight of epichlorohydrin, 0.36 to 0.16% by weight of ethylenechlorohydrin, and 0.72 to 0.42% by weight of secondary resin reactant produced in the secondary resin reaction process in 97.55 to 77.9% by weight %, 0.72-0.42 wt% of N- (β-aminomethyl) -γ-aminopropyltrimethoxysilane and 0.43-0.23 wt% of water-soluble silicone were thoroughly mixed in the reactor for 10 minutes, and then the mixture 39.93-9.98 wt%, 3rd resin reaction process which mixes 0.13-0.03 weight% of zinc stearate, 15.24-12.24 weight% of silica gel, and 45.70-40.75 weight% of mineral powder for 30 minutes,

4) a drying process of drying the tertiary resin reactant produced in the tertiary resin reaction process for 1 hour to 1 hour and 30 minutes by indirect heating at a heating temperature of 60 to 100 ° C., and drying the tertiary resin reactant to 250 It consists of a grinding process of grinding to a particle size of ~ 300 mesh.

At this time, the generation amount of far-infrared rays and anions is changed according to the reaction of formarin and melamine used as main components in the first to third resin reaction processes, caustic soda, triethanolamine, formic acid, and phosphate selectively added in each process To perform the function of the catalyst during the resin reaction, caustic soda and triethanolamine serves to change the pH, formic acid serves to re-react / repeat the reaction during the resin reaction.

In addition, phosphate has a flame retardant and flame retardant function, and in particular, serves to activate the resin reaction. Hexamine is used to maintain pH, epichlorohydrin and ethylenechlorohydrin act as hardeners, methyltrimethoxysilane, N- (β-aminomethyl) -γ-aminopropyltrimethoxysilane and water soluble Silicone acts to reduce the damage to mold by injection molding, and ethanol also plays a role in condensation during the reaction, but evaporates with moisture as it takes moisture.

In addition, the mineral (non-combustible material) is irrelevant to the product name and quality, but mainly crushed one or more minerals selected from anion, tourmaline, jade, ganban stone, ocher, amethyst to more than 250 mesh to other mixtures and sigmer wings Stir for 30 minutes to mix well with a leader. Subsequently, the wet tertiary resin reactant is transferred to a dryer to perform a drying process. In this step, the mass production is performed in two kinds.

In other words, as it is carried out in a continuous tunnel air dryer or spray spray dryer, the dry matter should be uniformly dried in any manner.

The drying temperature and drying time vary depending on the viscosity of the modified synthetic resin solution, the curing time, and the characteristics of the desiccant. Preferably, indirect heating uses heated air at 60 to 100 ° C. for 1 hour to 1 hour and 30 minutes. The reason why the selection of drying conditions is important in the modified synthetic resin is that the drying is not only dehydration, but also the modification and condensation reaction of the synthetic resin occurs simultaneously. Therefore, it is important to control the denaturation, condensation and fluidity of synthetic resin by controlling drying temperature, drying time, humidity of circulating air. If the drying temperature is high or the drying time is long, the resin fluidity (flow) is significantly impaired. On the contrary, if the drying temperature is low or the time is short, the moisture content is high. Not only does the amount of gas generated increases, but the density of the molded article is poor and satisfactory quality as a required material cannot be obtained.

After drying, the dried product is cooled with a cold fan and kept at room temperature. The cooled product goes through two stages of the mill. The first step is pulverized with a hammer mill grinder, and then finely divided into a vibratory mill grinder, and then put into a ball mill in a second step, after mixing appropriate amounts of conventional dyes, pigments, mold release agents and curing agents, Mix evenly to achieve particle size and volume specific gravity required for molding. The inside of the ball mill grinder has a built-in magnetic brick to prevent contamination, and a jacket is made outside to keep cooling by passing the coolant. Therefore, by cooling the heat generated from friction and impact, the condensation reaction of the pulverized synthetic resin does not proceed and the fluidity is not reduced. Products that have been pulverized and mixed are sifted and packed to remove pulverized matter and foreign substances.

Thus, the modified synthetic resin obtained in the first resin reaction step and the second resin reaction step by the melamine in the middle of the melamine reaction is carried out smoothly, so that the retention period of the synthetic resin is maintained in clear yellow in the liquid state is 2 to 3 days long It can improve workability during injection molding, and can generate far infrared rays and negative ions at the highest level. When injection molding in a certain form, medical equipment, artificial jewelry and marble, tile, flooring, wall materials, ceiling materials, roof tiles, air flow It can be commercialized into various products such as electronic products and household goods.

In addition, the modified synthetic resin solution which has completed the tertiary resin reaction process by the curing agent of epichlorohydrin and ethylenechlorohydrin in the tertiary resin reaction process is improved in curability, and the modified synthetic resin solution is used in front and rear of glass fibers. It is possible to produce a variety of molded products having high structural strength by coating and impregnating with 2.0 to 3.0 mm, followed by drying and molding by pressing.

More specifically, examples of the commercialization function product utilizing the present technology include the following.

(next)

(1) jewelry

Jade kinds of jewelry

(2) Interior materials

It can be burned, helps to cure diseases, and is good for health and can produce free form and natural color.

(3) stone materials

a. Artificial marble b.artificial stone

(4) tiles

a. Embedded tiles b. Corner tiles c. Mural d. Floor tiles

(5) Others

a. Sink set b. Washbasin c. Urinal d. Toilet seat (for railway)

(6) roofing material

a. Pressurized cement plates b. Metal and c. Projections and d.

(7) road safety equipment

 a. Road signs b. Road safety signs

(8) molded products

a. Artificial reef facilities b. Hardboard c. Subway wall d. Subway flooring

e. Ceiling and flooring f. Bedboard

(9) Synthetic Resin

a. For jade jewelry and jewellery b. Jade bowl c. Resin for building materials

d. General melamine resin e. Coating resin f. Transfer Paper Resin

g. Adhesive resin h. Ceramic substitute

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the scope of the present invention is not limited to the following examples.

<Example>

1. First reaction

a. Formarin 73.23 wt%

b. 0.73% by weight of triethanolamine

c. Hexamine 0.19% by weight

d. Methanol 23.71 wt%

e. Caustic soda (40% caustic soda diluted in water) 2.14 wt%

f. 73.02% by weight of a mixture of a to g g. Melamine 26.98 wt%

After the a-e formulation reagent was added to the reactor and stirred at 55-60 ° C. for 5-10 minutes (pH 10-11), f was added to the g, mixed, and reacted at 85 ° C. for 1 hour.

2. Secondary reaction

After cooling the primary reactants to 60 ° C. or below,

a. Primary reactant 57.81 wt%

b. Formarin 47.56 wt%

c. 0.31% by weight of triethanolamine

d. Hexamine 0.07 wt%

e. Formic acid 0.06% by weight

f. After stirring 0.19 weight% of phosphate at 85 degreeC for 5 to 10 minutes (pH 8-9),

g. 69.60% by weight of the stirred mixture h. Melamine 30.40 wt%

Add and mix as prescribed and react for 1 hour at 90 ° C.

3. Tertiary reaction

After cooling the secondary reactants to 60 ° C. or below,

a. 97.55 wt% of secondary reactants

b. 0.22% by weight of epichlorohydrin

c 0.36% by weight of ethylenechlorohydrin

d. Methyltrimethoxysilane 0.72 wt%

e. N- (β-aminomethyl) -γ-aminopropyltrimethoxysilane 0.72 wt%

f. 0.43% by weight of water-soluble silicone

After thoroughly mixing in the reactor for 10 minutes as prescribed,

g. 38.93% by weight of a mixture of a to f h. 0.13% by weight of zinc stearate

i. Silica gel 15.24 wt%

j. Mineral powder (one mineral selected from tourmaline, anion, jade, elvan, loess, amethyst) 45.70 wt%

Mix more by mixing as prescribed.

At this time, the mineral (non-combustible material) is pre-milled to 250 mesh or more irrespective of the product name, quality, so that the following prescription reagents are evenly mixed with the sigmer wing reader.

4. drying process

In the drying process, the kneaded kneaded material is dried by controlling the wind temperature, the wind speed, and the humidity by an indirect heating method using a continuous tunnel air dryer and a spray spray dryer.

5. Crushing Process

In the grinding process, the dried kneaded material is pulverized to a particle size of 250 to 300 mesh through a two-step process using a high-performance grinder.

6. Packing

Products with homogeneous grinding and mixing should be sifted to remove pulverized matter and foreign matter.

7. Injection molded products

The obtained modified synthetic resin is injection molded into a certain form to manufacture a variety of products such as medical devices, artificial jewelry and marble, tiles, flooring, wall materials, ceiling materials, roof tiles, air flow (bowl), electronic products, household goods.

8. Press molded products

After the tertiary resin reaction process, the modified synthetic resin solution is applied to the front and rear surfaces of the glass fiber by impregnating with 2.0 to 3.0 mm, and then dried and pressed to prepare various molded products having high structural strength.

Experimental Example

Experimental method and results of the new material (synthetic resin panel) prepared by the above process is as follows.

1) Korea Building Materials Testing Institute (Far Infrared Ray, Well-being Material Center)

   Test analysis item: Far infrared ray emission amount (40 ℃)

   Test Analysis Result: Emissivity 0.907% (see Table 1)

Test report

   Reception number: FIR-681

   Institution / Name: Sungjin Chem / Sang-Sul Lee

   Address: 84-7, Munrae 3-ga, Yeongdeungpo-gu, Seoul

   Sample Name: Plate that is beneficial to human body

   Test Analysis Method: Instrumental Analysis (FT-IR)

   Date of test analysis: September 21, 2006 ~ September 28, 2006

   Use: Quality Control

Table 1. Test result

Test Items Test analysis result Test Analysis Method Far infrared ray emission amount (40 ℃) Emissivity (5 to 20 μm) 0.907 KICM-FIR-1005 Radiant energy (W / ㎡) 3.66 ㅧ 10 ²

(Remark) This test result is the result of measuring Black Body using FT-IR Spectrometer.

2) Korea Building Materials Testing Institute (Far Infrared Ray, Well-being Material Center)

Test Analysis Item: Anion Release

Test Analysis Result: Emission 2070 (ION / cc) (See Table 2)

Test report

Reception number: FIA-388

Institution / Name: Sungjin Chem / Sang-Sul Lee

Address: 84-7, Munrae 3-ga, Yeongdeungpo-gu, Seoul

Sample Name: Plate that is beneficial to human body

Test Analysis Method: KICM-FIR-1042

Date of test analysis: September 21, 2006 ~ September 28, 2006

Use: Quality Control

Table 2. Test Results

Test Items Test result Test Methods Negative ion (ION / cc) Blank 75 KICM-FIR-1042 Sample 2070

As can be seen from the above description, according to the modified synthetic resin of the present invention, by using a new material mixed with various mineral raw materials, such as anionic powder, tourmaline powder, jade powder, ganban stone powder, ocher powder, amethyst powder, which are beneficial to the human body, adhesion, surface hardness, In addition to producing products with excellent flame resistance, flame resistance, and abrasion resistance, it is possible not only to generate far infrared rays and negative ions which are particularly beneficial to the human body, but also to use moldings using the new material of the present invention as medical devices, building materials and interior decoration. Due to the ionization and sterilization by far infrared rays and anions, it is possible to produce multifunctional eco-friendly products that can escape from the danger of environmental hormone and fire that are recently raised socially. Time of manufacture of reactants Is reduced, curability is improved can increase the integrity of the product being manufactured crack and deformation of the product during manufacturing of the product is prevented.

Claims (4)

In the modified synthetic resin manufacturing method, 1) Formalin 73.5-70.5 wt%, Triethanolamine 0.73-0.53 wt%, Hexamine 0.19-0.09 wt%, Methanol 23.71-20.71 wt%, Caustic soda 2.14-1.94 wt% are added and mixed to pH 10- 11, and after stirring for 10 minutes at 55 ~ 60 ℃ below, 24.0 ~ 30.0 wt% of melamine to 70.0 ~ 76.0% by weight of the stirred mixture was reacted for 1 hour while indirect heating to 80 ~ 90 ℃ melamine molecules A first resin reaction step for alkylating the polar group in the polymer, 2) From 58.31 to 48.31 wt% of the primary resin reactant produced in the primary resin reaction step, formaline 41.56 to 38.56 wt%, triethanolamine 0.31 to 0.11 wt%, hexamine 0.07 to 0.04 wt%, formic acid 0.06 to 0.04 wt% , 0.19 to 0.09% by weight of phosphate was added and mixed to adjust the pH to 8-9, and 26.0 to 34.0% by weight of melamine was added to 74.0 to 66.0% by weight of the mixture and reacted at 85 to 95 ° C for 1 hour. Fair, 3) 0.22 to 0.11% by weight of epichlorohydrin, 0.36 to 0.16% by weight of ethylenechlorohydrin, and 0.72 to 0.42% by weight of secondary resin reactant produced in the secondary resin reaction process in 97.55 to 77.9% by weight %, 0.72-0.42 wt% of N- (β-aminomethyl) -γ-aminopropyltrimethoxysilane and 0.43-0.23 wt% of water-soluble silicone were thoroughly mixed in the reactor for 10 minutes, and then the mixture 39.93-9.98 wt%, A tertiary resin reaction step of mixing 0.13 to 0.03 wt% of zinc stearate, 15.24 to 12.24 wt% of silica gel, and 45.70 to 40.75 wt% of mineral powder for 30 minutes; 4) a drying process of drying the tertiary resin reactant produced in the tertiary resin reaction process for 1 hour to 1 hour and 30 minutes by indirect heating at a heating temperature of 60 to 100 ° C., and drying the tertiary resin reactant to 250 Method for producing a modified synthetic resin, characterized in that consisting of a pulverization step of grinding to a particle size of ~ 300 mesh. delete A molded product having far-infrared and anion effects, which is prepared by injection molding into a modified synthetic resin in a powder state prepared according to the method of claim 1. delete