KR101465227B1 - Plastic Resin Composition Having High Hardness with Low Lightweight and Method of Producing the Same - Google Patents

Plastic Resin Composition Having High Hardness with Low Lightweight and Method of Producing the Same Download PDF

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KR101465227B1
KR101465227B1 KR1020140083866A KR20140083866A KR101465227B1 KR 101465227 B1 KR101465227 B1 KR 101465227B1 KR 1020140083866 A KR1020140083866 A KR 1020140083866A KR 20140083866 A KR20140083866 A KR 20140083866A KR 101465227 B1 KR101465227 B1 KR 101465227B1
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weight
parts
glass
polyvinyl chloride
waste glass
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박헌홍
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(주)홍일산업
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/22Expanded, porous or hollow particles
    • C08K7/24Expanded, porous or hollow particles inorganic
    • C08K7/28Glass
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06Homopolymers or copolymers of vinyl chloride
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/04Hoses, i.e. flexible pipes made of rubber or flexible plastics

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

The present invention provides a lightweight synthetic resin tube composition having high rigidity and a method of manufacturing the same. The present invention is characterized in that 3 to 8 parts by weight of an ethylene-modified copolymer, 3 to 5 parts by weight of an impact modifier, 3 to 10 parts by weight of glass-fired ceramic powder, And 1 to 5 parts by weight of other filler. The glass fired ceramic powder is obtained by firing a waste glass product at a high temperature and then ceramicizing it, thereby providing the synthetic resin tube composition with impact resistance and lighter weight.

Description

TECHNICAL FIELD [0001] The present invention relates to a lightweight synthetic resin tube having a high rigidity and a method of manufacturing the same.

The present invention relates to a lightweight synthetic resin tube composition having high rigidity, and more particularly, to a polyvinyl chloride synthetic resin tube composition having polyvinyl chloride as a main component and having a high rigidity and light weight, and a method for producing the same.

In general, the vinyl chloride resin composition has excellent mechanical strength, low friction resistance, chemical resistance, electrical insulation, light weight, easy construction and low cost, and is widely used in various fields such as pipes, building materials, .

Most of the vinyl chloride resin compositions used as the pipe material are produced by extruding pellets of a polyvinyl chloride (PVC) resin into an extruder and extruding them into a pipe shape.

PVC resin pipes have excellent mechanical strength, are relatively easy to process and easy to install, and are widely used as fluid transfer pipes by extrusion molding.

However, the PVC resin pipe has a low strength at high temperature and low temperature, and has a disadvantage that the aging proceeds quickly when exposed to direct sunlight for a long period of time. Therefore, its use is limited to high temperature piping such as heating. There arises a problem that the coloring is deteriorated due to the temperature change of the film, or the physical properties are deteriorated and warped or deformed.

In order to solve these problems, the resin composition is mixed with an additive for strengthening the strength to improve the strength. However, when the strength is supplemented, the impact resistance is lowered. When the impact resistance is strengthened, the strength is weakened. It is difficult to improve the physical properties.

A conventional prior art is Korean Patent No. 10-917765 entitled "Polyvinyl Chloride Resin Composition for Fluid Pipe ". However, this method adds bamboo charcoal powder, nano-scale scorching and general wonder to improve the impact resistance. As the addition of additives increases, the interface between the additive surface and the polyvinyl chloride resin increases Therefore, the impact strength of the final synthetic resin may be weakened in proportion to the amount of the additive.

As a conventional prior art, Korean Patent Registration No. 10-1038648 entitled " A method of manufacturing a resin tube with improved heat resistance and a resin tube manufactured by the method ". However, this method is disadvantageous in that chlorinated polyvinyl chloride must be added in order to improve the heat resistance, and the heat stabilizer must be simultaneously supplied in consideration of decomposition by heat during the molding process.

As a conventional prior art, Korean Patent No. 10-1212456 entitled "Synthetic Resin Tubes with Improved Impact Resistance" However, in this method, 1 to 50 parts by weight of an acryl-vinyl chloride graft copolymer is added to 100 parts by weight of polyvinyl chloride to improve impact resistance, and 5 to 15 parts by weight of an impact modifier is added.

In this case, in order to improve the impact resistance, at least 6% to 65% of the polyvinyl chloride component, which is the basic raw material of the synthetic resin pipe, is supplied. However, the physical properties of the synthetic resin pipe It is difficult to distinguish whether or not it exists.

Korean Patent Registration No. 10-917765 "Polyvinyl Chloride Resin Composition for Fluid Pipe" (Sep. 15, 2009); Korean Patent No. 10-1193903 entitled "Polyvinyl Chloride Resin Composition for Fluid Pipes and Coupling Tubes" (Oct. 29, 2012); Korean Patent No. 10-1038648 "A method for producing a resin tube having improved heat resistance and a resin tube made by the method" (June 2, 2011); Korean Patent No. 10-1212456 entitled "Synthetic Resins with Improved Impact Resistance" (December 13, 2012); Korean Patent No. 10-1186928 "Synthetic resin water pipe reinforced with antibacterial, deodorizing and mechanical properties and manufacturing method" (2012. 9. 28.)

An object of the present invention is to provide a polyvinyl chloride synthetic resin tube composition containing polyvinyl chloride as a main component and having a high rigidity and being light in weight, and a method for producing the same.

In order to achieve the above object, the present invention provides a process for producing a polypropylene resin composition, which comprises adding 3 to 8 parts by weight of an ethylene-modified copolymer, 3 to 5 parts by weight of an impact modifier, 3 to 10 parts by weight of glass- 1 to 3 parts by weight, and 1 to 5 parts by weight of other filler.

The present invention also relates to a process for producing a waste glass product by pulverizing a waste glass product by collecting, cleaning and crushing waste glass bottles and the like and uniformly mixing 95 wt% to 97 wt% of the waste glass product with 3 wt% to 5 wt% The waste glass raw material is put into a high temperature firing furnace and subjected to a high temperature heat treatment at a high temperature of 750 ° C. to 1100 ° C. for 30 minutes to 1 hour to obtain a glass ceramic reaction product, A first step of preparing a powdered glass fired ceramic powder by cooling and pulverizing the powdered glass fired ceramic powder; 3 to 5 parts by weight of the impact modifier, 3 to 10 parts by weight of the glass fired ceramic powder, 1 to 3 parts by weight of the processing aid, and 1 to 3 parts by weight of the other filler, based on 100 parts by weight of polyvinyl chloride, 5 parts by weight of a polyvinyl chloride resin into a reaction tank to prepare a highly rigid polyvinyl chloride synthetic resin composition; The present invention provides a method for producing a polyvinyl chloride synthetic resin tube composition.

The composition for polyvinyl chloride synthetic resin tube according to the present invention is characterized in that the impact resistance and the tensile strength are improved as compared with conventional impact resistant synthetic resin pipes even when a small amount of impact resistant material is added.

In addition, the composition for polyvinyl chloride synthetic resin tube according to the present invention is advantageous in that it is lighter in weight than the conventional composition for functional synthetic resin tube even when an inorganic additive for ceramic powder calcined at a high temperature is introduced. This lightweight is expected to be of great help in creating new uses for building materials or for plumbing and waterworks.

In addition, when the composition for a polyvinyl chloride synthetic resin tube according to the present invention is produced, it is believed that there is an advantage that waste resources can be utilized.

The composition for polyvinyl chloride synthetic resin tube according to the present invention comprises 3 to 8 parts by weight of an ethylene-modified copolymer, 3 to 5 parts by weight of an impact modifier, 3 to 10 parts by weight of glass-fired ceramic powder, 1 to 3 parts by weight of the preparation and 1 to 5 parts by weight of other fillers.

The polyvinyl chloride synthetic resin composition according to the present invention is composed mainly of polyvinyl chloride, which is easy to color, relatively hard, has excellent moldability and is widely used.

The polyvinyl chloride may be prepared by a suspension polymerization method or an emulsion polymerization method according to a production process, and is distributed in the form of a resin granular powder of a solution polymer, and can be produced using the same. The production method of the polyvinyl chloride is conventional, and there is no particular limitation thereon. The degree of polymerization of the polyvinyl chloride is preferably in the range of 500 to 2500. If the degree of polymerization is less than 500, mechanical properties such as tensile strength and hardness are lowered. If the degree of polymerization exceeds 2500, molding at ordinary processing temperature is difficult, It is not preferable since the thermal stability is lowered.

The polyvinyl chloride synthetic resin composition according to the present invention contains 3 to 8 parts by weight of an ethylene-modified copolymer with respect to 100 parts by weight of the polyvinyl chloride.

The ethylene-modified copolymer is obtained by copolymerizing a first segment constituent component composed of an ethylene homopolymer, an ethylene /? - olefin copolymer or an ethylene / polar group-containing vinyl copolymer, and a second segment constituent composed of an unsaturated carboxylic acid or an aromatic vinyl compound And the first segment constituent component and the second segment constituent constitute an ester bond or an ether bond. The first segment component may have a weight average molecular weight (Mw) of about 5,000 to about 500,000, preferably 10,000 to 50,000, and a melt flow rate (MFR) of ASTM 1238 (230 ° C, 2.16 kg). The second segment component preferably has a weight average molecular weight (Mw) of about 500 to 500,000.

More preferably, the ethylene-modified copolymer is an ethylene-vinyl copolymer having an ethylene content of 1 to 99 mol% and a vinyl group-containing vinyl copolymer content of 1 to 55 mol%, and the second segment The constituent components are (meth) acrylic acid ester copolymers, and they preferably have an ether bond with each other.

When the ethylene-modified copolymer is used in an amount of 3 parts by weight or less based on 100 parts by weight of the polyvinyl chloride, it is difficult to exhibit the impact resistance of the final synthetic resin. On the other hand, when the ethylene-modified copolymer is used in an amount of 8 parts by weight or more, Which is undesirable.

The polyvinyl chloride synthetic resin composition according to the present invention comprises 3 to 5 parts by weight of an impact modifier based on 100 parts by weight of the polyvinyl chloride.

The impact modifier is used to further reinforce impact resistance on the synthetic resin composition. The impact modifier may be a component commonly used in the art. The impact modifier is more efficient when used in combination with the ethylene modified copolymer, as compared to when used alone. As the impact modifier, for example, an MBS impact modifier is preferable. When the impact modifier is used in an amount of 3 parts by weight or less, it is difficult to expect an impact resistance strengthening effect. On the other hand, when the impact modifier is used in an amount of 5 parts by weight or more, the impact resistance increase rate is not increased.

The polyvinyl chloride synthetic resin composition according to the present invention comprises 3 to 10 parts by weight of glass-fired ceramic powder per 100 parts by weight of the polyvinyl chloride.

The glass-fired ceramic powder is obtained by collecting waste glass bottles, washing, crushing and pulverizing them, mixing them together with a binder, firing at a high temperature to obtain a glass ceramic material, cooling it to room temperature and pulverizing . The glass-fired ceramic powder is cooled after being fired at a high temperature, and has many fine bubbles formed on the surface thereof. As shown in enlarged view, when the fine bubbles are open, an open cell structure and fine bubbles are closed And a closed cell structure.

The glass fired ceramic powder has numerous micropores formed on the surface and inside thereof. The pores on the surface thereof have a size generally within about 1 mm, and the specific gravity thereof is about 0.4 to 0.5. Therefore, It will easily float in the water. Therefore, when the glass fired ceramic powder is used as a filler for a synthetic resin, it is possible to achieve weight reduction of products which can not be provided by other strength reinforcements while improving the strength of the product.

When the glass fired ceramic powder is added in an amount of less than 3 parts by weight based on 100 parts by weight of the polyvinyl chloride, the strength reinforcing effect is weak. When the glass fired ceramic powder is added in an amount of 10 parts by weight or more, The proportion of the inorganic additive is increased along with the content of the inorganic additive, which tends to weaken the strength reinforcing effect as a whole, which is not preferable.

In fact, since the glass fired ceramic powder has numerous microbubble-like open cells on the surface thereof, the synthetic resin composition enters the open cell, so that even when the glass fired ceramic powder is charged in an amount of 10 parts by weight or more The glass fired ceramic powder and the synthetic resin composition are firmly combined with each other, so that the effect of strengthening the strength is increased, and the glass fired ceramic powder is not weakened by itself. However, if the glass fired ceramic powder is added in an amount of 10 parts by weight or more, when the other inorganic additives are added, the ratio of the total inorganic additives increases and the ratio of the polyvinyl chloride component having a function as a carrier is relatively high , The strength reinforcement effect is weakened as a whole.

The polyvinyl chloride synthetic resin composition according to the present invention contains 1 to 3 parts by weight of the processing aid per 100 parts by weight of the polyvinyl chloride.

The processing aid is used for the improvement of processability, prevention of melt fracture, reduction of flow mark, improvement of gloss and the like without affecting the overall physical properties of the synthetic resin by injecting a relatively small amount . As the processing aid, materials conventionally used in this technical field can be used. As the processing aid, an acrylic, styrene or organic aric acid ester type combined processing aid is preferable, and more specifically, a processing aid having a molecular weight of 500,000 to 3,000,000 which is a main component of polymethyl methacrylate (PMMA) is more preferable.

When the processing aid is used in an amount of 1 part by weight or less based on 100 parts by weight of polyvinyl chloride, a flow mark or the like appears during processing at a low temperature, resulting in poor processability. Therefore, when the amount is more than 3 parts by weight, It is not desirable because it causes cost increase.

The polyvinyl chloride synthetic resin composition according to the present invention contains 1 to 5 parts by weight of other filler based on 100 parts by weight of the polyvinyl chloride.

The above-mentioned other fillers refer to an extender added for cost reduction, a lubricant to be added to improve workability, and a pigment to impart color to synthetic resin. The other fillers may be used in a conventional manner.

Depending on the intended use of the final product, the amount of the other filler to be added and the amount of the other filler are determined. The extender, the lubricant, the pigment, and the like may be put in, respectively, or put in together.

Examples of the filler include inorganic fillers such as calcium carbonate, talc, mica, and silica. The inorganic filler is most preferably calcium carbonate. The above-mentioned calcium carbonate is low in unit cost, improves the formability, reduces the abrasion of the mixing and processing apparatus, is harmless to the human body, and is easy to use because of a wide range of particle size adjustment. In particular, it is known that calcium carbonate having a particle size of less than 0.1 탆 functions to disperse impact applied to the outside of a resin tube produced due to its small particle diameter to strengthen impact resistance.

The lubricant is used for the purpose of lowering the flow viscosity of the resin dissolved in the molding process and preventing frictional heat generation. Examples of the lubricant include butyl stearate, lauryl alcohol, stearyl stearate, epoxidized soybean oil, glycerin monostearate, stearic acid, and bis-amide. When the lubricant is added below the lubricant, the lubrication action is not properly performed. On the other hand, when the lubricant is added beyond the reference lubricant, the improvement of the lubrication performance is limited and the surface processability is lowered later.

The pigment may be used when it is desired to impart color to a synthetic resin product. The pigment may also be carried out in a conventional manner.

The present invention also provides a method for producing the polyvinyl chloride resin tube composition.

The method for producing the polyvinyl chloride resin tube composition according to the present invention comprises a first step of preparing a glass-fired ceramic powder which is primarily capable of imparting high rigidity to a synthetic resin composition, Wow; A second step of producing a lightweight polyvinyl chloride resin composition having high rigidity and secondarily using the glass fired ceramic powder obtained in the first step; Lt; / RTI >

The method for producing the polyvinyl chloride resin tube composition according to the present invention comprises the steps of: collecting, cleaning and crushing waste glass bottles and the like to pulverize the waste glass product; pulverizing 95% to 97% by weight of the waste glass product; 3 wt% to 5 wt% are uniformly mixed to produce a waste glass raw material. Then, the waste glass raw material is put into a high-temperature baking furnace and subjected to a high-temperature heat treatment at a high temperature of 750 ° C to 1100 ° C for 30 minutes to 1 hour, Cooling the glass ceramic reaction product to a room temperature and then pulverizing the powder to prepare powdered glass fired ceramic powder; .

The method for producing the polyvinyl chloride resin tube composition according to the present invention is characterized in that after the first step, 3 to 8 parts by weight of an ethylene-modified copolymer, 3 to 5 parts by weight of an impact modifier 3 to 10 parts by weight of the glass-fired ceramic powder, 1 to 3 parts by weight of the processing aid and 1 to 5 parts by weight of other fillers into a reaction vessel and reacting the mixture to prepare a highly rigid polyvinyl chloride synthetic resin composition; .

In the present invention, the first step is a technical feature of the present invention, and the second step is performed on the assumption that the first step is a technical feature of the present invention. The second step may be performed by applying a method known in the art.

Hereinafter, preferred embodiments of the first step of the present invention will be described in more detail and in detail. Meanwhile, preferred embodiments of the second step of the present invention will be described with reference to the following Examples and Comparative Examples.

  One). Powdering step of waste glassware:

It is preferred that the present invention is used for industrial purposes, or for collecting glass products that have been disposed of in daily life, and then simply washed and crushed. Waste shredded glassware should be shredded to a size of about 5 centimeters or less, or powdered. When the waste glass product is crushed and used, a high-quality final product can be obtained by mixing with the following inorganic binder and firing at a high temperature.

The present invention is preferably used to collect and use the collected waste glass products, but does not exclude conventional glass products. This is because the collection and use of waste glass products is recommended in terms of environmental protection and recycling of resources, and therefore does not set limits for glass products.

  2). Mixing step of waste glass raw material:

The present invention includes a step of mixing waste glass raw material prepared by uniformly mixing 95 wt% to 97 wt% of the waste glass product collected in the collection step of the waste glass product with 3 wt% to 5 wt% of the binder.

The waste glass product uses finely divided glass or powdered glass as the main raw material. When the amount of the waste glass product is less than 95% by weight, the following binder component becomes excessive, so that excessive bubbles are formed when the waste glass product is softened in a high-temperature firing process to weaken the strength of the final product, When the content of the product is 97% by weight or more, the action by the binder component is weak and the glassy component is partially present in the final product, which is not preferable.

The binder component chemically reacts the waste glass component under a high temperature reaction temperature condition to modify the molecular structure as a glass to form fine bubbles in the softening process of the waste glass product, It is the reaction binder component that keeps shape. Further, the binder component transforms the molecular structure of the waste glass product as a glass into a glass ceramic ceramic.

As the binder component, titanium dioxide (TiO 2 ) is most preferable, and a platinum catalyst (Pt 3 Fe) can be used. When the amount of the binder component is less than 3% by weight, the components of the waste glass product are numerous, so that the glass component can not be partially disintegrated in the final product and the glass component is partially retained. If it is contained in an amount of more than 10% by weight, excessive bubbles are formed in the process of softening the waste glass, resulting in poor performance of the final product, and it is also undesirable because it involves high cost.

In the present invention, it is preferable that the waste glass product and the binder component are uniformly kneaded and then molded at a high pressure of about 150 MPa to 200 MPa in a certain mold frame. Even if the high-pressure forming operation is not performed, it is possible to carry out the ceramicizing reaction operation of the waste glass product in the high-temperature firing process, but it is necessary for the final product to be appropriately used to be.

  3). Ceramicization of Waste Glass Material Step:

The present invention includes a glass ceramic conversion step of a waste glass raw material in which the waste glass raw material is charged into a high-temperature firing furnace and subjected to a high-temperature heat treatment at a high temperature of 750 ° C. to 1100 ° C. for 30 minutes to 1 hour to obtain a glass ceramic reaction product.

In the present invention, the waste glass raw material is charged into a high-temperature firing furnace to induce a high-temperature reaction with the binder. As a high-temperature reaction method, a high-temperature heat treatment is performed at a high temperature of 750 ° C to 1100 ° C for 30 minutes to 1 hour in a high temperature baking furnace.

When the waste glass raw material and the binder component are reacted at a high temperature, the glassy structure of the waste glass is deformed and transformed into a ceramic material while forming disordered and non-uniform amorphous structure. At this time, predetermined bubbles are generated in a state in which the glass material is softened at a high temperature, and a large number of minute bubbles are formed in the glass ceramic material by the bubbles.

The waste glass raw material and the binder component are fired at a high temperature of 750 ° C to 1100 ° C. When the fired glass raw material and the binder component are fired at 750 ° C or lower, it is difficult to deform the glassy structure of the waste glass. Although the work can be completed in a relatively short time, it is undesirable due to the appearance of crystalline (CaO-Al 2 O 3 -TiO 2 -SiO 2 ) structures. The baking time at a high temperature can be selected from about 30 minutes to 1 hour, and in general, a long time is required at low temperature baking, while a short time baking at high temperature baking is preferable.

  4). Finishing steps:

The present invention includes a finishing step of cooling the glass ceramic reaction product to room temperature and grinding to obtain a glass fired ceramic powder.

When the high-temperature reaction is terminated in the high temperature baking furnace, it is cooled to obtain a glass ceramic composition at room temperature. The cooling method can be performed in a conventional manner. The cooling system can be forced or cooled to a natural state. The cooled glass ceramic composition is ground and pulverized by a ball mill or the like.

The glass-fired ceramic powder of the first step is obtained through the above-described steps.

The present invention relates to a second step of producing a highly rigid polyvinyl chloride synthetic resin composition using the glass fired ceramic powder obtained in the first step; ≪ / RTI >

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the manufacturing process. It should be noted, however, that the specific numerical values shown in the embodiments are only for explaining the technical idea of the present invention in more detail, and that the technical idea of the present invention is not limited thereto and that various modifications are possible.

≪ Example 1: Preparation of glass fired ceramic powder >

The waste glass was collected, washed, finely crushed, and then 500 g of titanium dioxide was weighed and weighed uniformly to 10 kg of waste glass. Mixed waste glass and titanium dioxide were put into a high-temperature firing furnace at 850 DEG C, and the temperature was maintained at 950 DEG C while heating for 40 minutes to gradually increase the temperature.

After completing the firing operation, the heating was stopped and the cooling was gradually carried out. After cooling to room temperature, the fired glass ceramic material was found to have fine bubbles formed on its surface. When the surface of the glass ceramic material was observed at a magnification of about 150 times, a fine open cell structure and a closed cell structure were confirmed.

≪ Example 2: Production of polyvinyl chloride synthetic resin >

The reactor was filled with pure water, and then 100 kg of polyvinyl chloride resin, 5 kg of ethylene-vinyl- (meth) acrylate copolymer, 4 kg of MBS impact modifier, 7 kg of glass fired ceramic powder, 2 kg of processing aid, 1 kg of powdered soybean oil, and 3 kg of calcium carbonate as other filler were weighed and added, and an appropriate amount of polyoxyethylene nonylphenyl ether ammonium sulfate as a dispersant was added.

The interior of the reaction vessel was reduced in pressure to remove oxygen, filled with nitrogen, sufficiently emulsified in a nitrogen atmosphere with stirring, and the polymerization reaction vessel was heated to 75 캜 and allowed to react.

When the pressure in the reaction tank reached 4.5 g / cm < 2 >, the reactor was cooled, unreacted material was removed, and then dehydrated and dried to prepare a vinyl chloride resin.

≪ Example 3 >

Except that the other conditions were the same as those of Example 1 except that 7 kg of the ethylene-vinyl- (meth) acrylic acid ester copolymer and 5 kg of the glass fired ceramic powder were changed to 100 kg of the polyvinyl chloride resin .

<Example 4>

Except that 8 kg of the ethylene-vinyl- (meth) acrylic acid ester copolymer and 4 kg of the glass-fired ceramic powder were changed to 100 kg of the polyvinyl chloride resin in Example 1, .

&Lt; Example 5 >

In Example 1, 6 kg of the ethylene-vinyl- (meth) acrylic acid ester copolymer and 8 kg of the glass fired ceramic powder were changed to 100 kg of the polyvinyl chloride resin, and 1.5 kg of the lubricant and 2.5 kg of the calcium carbonate All other conditions were the same except for the changes.

&Lt; Comparative Example 1 &

In Example 1, the ethylene-vinyl- (meth) acrylate copolymer was not used for 100 kg of the polyvinyl chloride resin, and all other conditions were the same.

&Lt; Comparative Example 2 &

In Comparative Example 1, an ethylene-vinyl- (meth) acrylic acid ester copolymer was not used and 100% glass fired ceramic powder was not used for 100 kg of the polyvinyl chloride resin. .

&Lt; Evaluation of Impact Strength and Tensile Strength >

Using the synthetic resins obtained in Examples 2 to 5 and Comparative Example 1 and Comparative Example 2, a synthetic resin tube was produced in a usual manner. Tests were conducted according to JIS K 7777 and JIS K 7113 (measuring temperature 23 ° C) to determine the impact strength and tensile strength of the manufactured synthetic resin pipes.

The samples of the synthetic resins prepared according to the examples and comparative examples were prepared and the impact strength and the tensile strength of the samples were measured. The results are shown in Table 1 below.

Measurement result of test piece Measurement test  Example 2  Example 3  Example 4  Example 5  Comparative Example 1  Comparative Example 2 Charpy impact
(kg · cm / cm 2)
 38  37  39  40   30   32
The tensile strength
(kg / cm2)
 580  585  587  598  522  538

As can be seen in Table 1, the polyvinyl chloride synthetic resin composition according to the present invention showed much improved impact strength and tensile strength compared with the synthetic resins of Comparative Examples 1 and 2, .

By using the ethylene-modified copolymer and the glass fired ceramic powder, a lightweight synthetic resin tube can be manufactured while improving the impact strength and tensile strength of the polyvinyl chloride synthetic resin.

Although the lightweight polyvinyl chloride resin tube composition having high rigidity according to the present invention and its manufacturing method have been specifically described, it should be noted that the present invention is limited only to the most preferred embodiments thereof The scope of which is to be determined and limited by the appended claims.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (6)

3 to 8 parts by weight of an ethylene modified copolymer, 3 to 5 parts by weight of an impact modifier, 3 to 10 parts by weight of a glass fired ceramic powder, 1 to 3 parts by weight of a processing aid and 1 to 5 parts by weight of other fillers, based on 100 parts by weight of polyvinyl chloride, By weight, based on the total weight of the polyvinyl chloride resin composition.
The method according to claim 1,
The ethylene-modified copolymer may contain,
A first segment component composed of an ethylene homopolymer, an ethylene /? - olefin copolymer, or an ethylene / polar group-containing vinyl copolymer;
A second segment component composed of an unsaturated carboxylic acid, or an aromatic vinyl compound; Lt; / RTI &gt;
Wherein the first segment constituent component and the second segment constituent constitute an ester bond or an ether bond.
delete The method according to claim 1,
The glass fired ceramic powder
Collecting, washing and crushing the waste glass product to obtain a pulverized waste glass product;
95 wt% to 97 wt% of the pulverized waste glass product and 3 wt% to 5 wt% of the binder are uniformly mixed to produce a waste glass raw material;
The waste glass raw material is placed in a high-temperature firing furnace and subjected to a high-temperature heat treatment at a high temperature of 750 ° C to 1100 ° C for 30 minutes to 1 hour to obtain a glass-ceramic reaction product;
And then the glass ceramic reaction product is cooled to room temperature and pulverized to obtain a powdered product. The composition for a polyvinyl chloride synthetic resin tube of high rigidity and light weight.
A method for producing a polyvinyl chloride synthetic resin tube composition,
Collecting, cleaning and crushing the waste glass product to obtain a pulverized waste glass product, mixing 95 wt% to 97 wt% of the pulverized waste glass product with 3 wt% to 5 wt% of the binder uniformly to obtain waste glass raw material The waste glass raw material is placed in a high-temperature firing furnace and subjected to a high-temperature heat treatment at a high temperature of 750 ° C. to 1100 ° C. for 30 minutes to 1 hour to obtain a glass ceramic reaction product. Thereafter, the glass ceramic reaction product is cooled to room temperature A first step of preparing powdered glass-fired ceramic powder by pulverization;
3 to 5 parts by weight of the impact modifier, 3 to 10 parts by weight of the glass fired ceramic powder, 1 to 3 parts by weight of the processing aid, and 1 to 3 parts by weight of the other filler, based on 100 parts by weight of polyvinyl chloride, 5 parts by weight of a polyvinyl chloride resin into a reaction tank to prepare a highly rigid polyvinyl chloride synthetic resin composition; To
Wherein the polyvinyl chloride resin composition is a polyvinyl chloride resin composition.
6. The method of claim 5,
(TiO 2 ) is used as a component of the binder. The method for producing a composition for a polyvinyl chloride synthetic resin tube of high rigidity and light weight.
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KR101547821B1 (en) * 2015-04-27 2015-08-27 최성필 The manufacture method of artificial filter medium using waste glass and waste LCD and artificial filter medium Manufactured by Method
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