KR20160120978A - High flame retardant polyvinyl chloride resin composition and the manufacturing method of polyvinyl chloride product using the same - Google Patents
High flame retardant polyvinyl chloride resin composition and the manufacturing method of polyvinyl chloride product using the same Download PDFInfo
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- KR20160120978A KR20160120978A KR1020150050279A KR20150050279A KR20160120978A KR 20160120978 A KR20160120978 A KR 20160120978A KR 1020150050279 A KR1020150050279 A KR 1020150050279A KR 20150050279 A KR20150050279 A KR 20150050279A KR 20160120978 A KR20160120978 A KR 20160120978A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions 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
- C08L27/02—Compositions 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
- C08L27/04—Compositions 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
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C08K3/0033—
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K3/2279—Oxides; Hydroxides of metals of antimony
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions 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
- C08L27/02—Compositions 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
- C08L27/12—Compositions 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 fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Abstract
The high flame retardant polyvinyl chloride resin composition according to the present invention comprises 100 parts by weight of polyvinyl chloride (PVC); 1 to 25 parts by weight of antimony trioxide; 1 to 25 parts by weight of zinc borate; 5 to 100 parts by weight of aluminum hydroxide; 0.1 to 5 parts by weight of polytetrafluoroethylene (PTFE); And 0.1 to 10 parts by weight of a processing aid containing nitrile and acrylic in a weight ratio of 1: 1 to 1:10, which minimizes the contact of the oxygen required for the combustion reaction with the polyvinyl chloride product to be burned, There is an advantage that the structure of the polyvinyl chloride product produced using the composition can be minimized. Also, the highly flame-retardant polyvinyl chloride resin composition according to the present invention has a very excellent effect of minimizing the human and material damage that may occur due to fire or the like by minimizing the combustion reaction proceeding through the chain process. The high flame retardant polyvinyl chloride resin composition according to the present invention also has an advantage of excellent processability.
Description
The present invention relates to a highly flame retardant polyvinyl chloride resin composition and a method for producing a highly flame retardant polyvinyl chloride product using the composition. More specifically, the present invention relates to a polyvinyl chloride resin composition exhibiting excellent flame retardancy To a method for producing a high flame retardant polyvinyl chloride product.
The combustion consists largely of four elements such as flammable, oxygen, ignition point, and chain reaction. In particular, in the case of polymers such as polyvinyl chloride, flammable gases are generated through heating and pyrolysis of polymers due to the ignition point, and these flammable gases are mixed with oxygen in the atmosphere to generate flames, which generate strong radiant heat inside the flames The oxidation reaction, or combustion reaction, begins.
After the combustion reaction described above, the heat is fed back through the process of supplying the heat required for the heating or pyrolysis again, and the flame spreads gradually, and as a minimum product due to the combustion reaction, Toxic gas is generated. The toxic gas generated at this time has a fatal effect on human life.
In the case of polyvinyl chloride resin products, the combustion process is performed through processes such as heating, pyrolysis and ignition.
That is, when the polyvinyl chloride resin product is heated by feedback of heat from an external heat source such as a flame or radiant heat, the resin product softens, melts and begins to flow, and then pyrolysis begins.
Such pyrolysis means chemical decomposition by temperature rise and plays an important role in generating a combustible gas required for combustion. When a plastic polymer such as polyvinyl chloride starts to decompose, that is, to initiate chemical decomposition, the free radicals are accompanied by a chain reaction, and the free radicals (H- and OH-, etc.) of the chain reaction are highly reactive and spread the flame continuously .
The combustible gases generated from the pyrolysis are mixed with oxygen in the atmosphere, and when they reach a certain temperature, they start to ignite and start combustion, and the pyrolysis chain reaction is repeated by the heat energy released at this time.
The combustion of plastic polymers through such a reaction process is accompanied by toxic gases and heat, which causes serious damage to human life and property. Plastics products are manufactured using various flame retardants to prevent the combustion of such plastic polymers.
Conventional flame retardant materials or techniques for polyvinyl chloride materials as described above are as follows.
A method using aluminum hydroxide (ATH) or magnesium hydroxide (MDH), a method using antimony trioxide in combination with a halogen-based flame retardant, and a method using a zinc borate as a plastic polymer And a method of increasing the flame retardancy of the product.
There is also a method of improving the flame retardancy of a polymer plastic product which uses the effect of stopping the combustion chain reaction and lowering the generation of toxic gases and fumes by suppressing the emission of heat energy by silicone-based additives.
However, all of these methods do not block the pyrolysis process of the polymer itself. Accordingly, when a fire occurs in a structure or the like using a plastic polymer, collapse of a structure made of a polymer plastic product can not be avoided.
Accordingly, there is an urgent need to develop a flame retardant plastic product that can prevent accidents caused by deformation of a plastic polymer structure caused by a fire, and can minimize a chain combustion reaction.
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to minimize the structural deformation of various products made of a plastic polymer and to minimize the combustion reaction progressed through a chain process, Flame retardant polyvinyl chloride resin composition capable of minimizing physical damage and a high flame retardant polyvinyl chloride product using the same.
The high flame retardant polyvinyl chloride resin composition according to one embodiment of the present invention comprises 100 parts by weight of polyvinyl chloride (PVC); 1 to 25 parts by weight of antimony trioxide; 1 to 25 parts by weight of zinc borate; 5 to 100 parts by weight of aluminum hydroxide; 0.1 to 5 parts by weight of polytetrafluoroethylene (PTFE); And 0.1 to 10 parts by weight of a processing aid comprising nitrile and acrylic in a weight ratio of 1: 1 to 1:10.
The high flame retardant polyvinyl chloride resin composition according to another embodiment of the present invention may further comprise 3 to 10 parts by weight of a composite stabilizer for polyvinyl chloride.
The highly flame retardant polyvinyl chloride resin composition according to another embodiment of the present invention may further comprise 0.1 to 5 parts by weight of a lubricant.
The high flame retardant polyvinyl chloride resin composition according to another embodiment of the present invention may further comprise one or more components selected from the group consisting of pigments, plasticizers, fillers, antioxidants, ultraviolet stabilizers, antistatic agents, impact modifiers, .
A method of producing a highly flame-retardant polyvinyl chloride product according to an embodiment of the present invention includes: 100 parts by weight of polyvinyl chloride (PVC), 1 to 25 parts by weight of antimony trioxide, 1 to 25 parts by weight of zinc borate, 5 to 100 parts by weight of aluminum hydroxide 0.1 to 5 parts by weight of polytetrafluoroethylene (PTFE), and 0.1 to 10 parts by weight of a processing aid comprising nitrile and acrylic in a weight ratio of 1: 1 to 1:10; Injecting or extruding the mixture to provide a workpiece; And molding the workpiece.
The method for producing a highly flame retardant polyvinyl chloride product according to another embodiment of the present invention is selected from the group consisting of a complex stabilizer, a lubricant, a pigment, a plasticizer, a filler, an antioxidant, a UV stabilizer, an antistatic agent, an impact modifier, Lt; RTI ID = 0.0 > and / or < / RTI >
The high flame retardant polyvinyl chloride resin composition according to the present invention minimizes the contact of the oxygen required for the combustion reaction with the polyvinyl chloride product to be burned so that the structure of the polyvinyl chloride product produced using the resin composition is deformed It is possible to minimize the size of the image. Also, the highly flame-retardant polyvinyl chloride resin composition according to the present invention has a very excellent effect of minimizing the human and material damage that may occur due to fire or the like by minimizing the combustion reaction proceeding through the chain process. The high flame retardant polyvinyl chloride resin composition according to the present invention also has an advantage of excellent processability.
Before describing the invention in more detail, it is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense, It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the constitution of the embodiments described in the present specification is merely a preferred example of the present invention, and does not represent all the technical ideas of the present invention, so that various equivalents and variations And the like.
The present invention relates to a polyvinyl chloride resin composition which exhibits excellent flame retardancy by utilizing a vigorous digestion effect and a method for producing a highly flame retardant polyvinyl chloride product by using the same.
The high flame retardant polyvinyl chloride resin composition according to one embodiment of the present invention includes polyvinyl chloride (PVC), antimony trioxide, zinc borate, aluminum hydroxide, polytetrafluoroethylene (PTFE), and processing aid.
Polyvinyl chloride (PVC) means a homopolymer of vinyl chloride or a hybrid polymer containing 50% or more of vinyl chloride. It is used as a soft product in sheets and films for packing and agricultural use. Hard products are used for the production of water pipes by extrusion molding. It is also referred to as a vinyl chloride resin, and even a homopolymer has properties depending on its molecular weight. There are two polymerization methods, emulsion polymerization and suspension polymerization, in which vinyl chloride is dispersed in water to disperse the heat of polymerization. The polymer is remarkably low in crystallinity and is decomposed due to light, heat or the like to be colored yellow or brown and deteriorated. Because of these properties of polyvinyl chloride, stabilizers are generally formulated in combination. Polyvinyl chloride is stable to all acids, alkalis, and oxidizers at room temperature, and is not soluble in acetone, alcohol, and benzene. It is soluble in tetrahydrofuran, cyclohexanone and the like. Polyvinyl chloride alone is relatively hard and breaks well, but it has elasticity when a plasticizer such as dioctyl phthalate is added. The maximum use temperature is 60 ° C, and the lowest use temperature is softened at -20 ° C even if a cold-resistant plasticizer is added. Vinyl chloride is hybridized with styrene, vinyl acetate, methyl acrylate, vinylidene chloride, etc., and the blend has a flexibility because it has lower processing temperature than the homopolymer. Recently, the quality of the homopolymer has been improved and processing technology has been developed Therefore, it is not used comparatively except for special purpose.
Since polyvinyl chloride is relatively inexpensive to manufacture and can be relatively easily processed by injection or extrusion, it has been used for a long time in pipes, wire covers, film sheets, imitation leather, building materials, ≪ / RTI >
However, polyvinyl chloride is disadvantageous in that it is very vulnerable to fire since its heat-resistant temperature generally does not exceed 60 ° C.
Therefore, various flame retardants as described above are used to overcome the above disadvantages of polyvinyl chloride. However, they are not methods that can block the pyrolysis process itself of a product made of polyvinyl chloride. Accordingly, There is a problem that is insufficient to prevent the material damage sufficiently.
The present inventors have developed a polyvinyl chloride resin composition capable of preventing an accident caused by deformation of a plastic polymer structure due to a fire and capable of producing a flame retardant plastic product capable of minimizing a chain combustion reaction.
Polytetrafluoroethylene (PTFE) is a non-flammable fluorocarbon resin that is composed of macromolecules made by chemically bonding many units in a chain or net form and belonging to the organic polymer family. It is resistant to heat, has an extremely low coefficient of friction, and has excellent chemical resistance. Polytetrafluoroethylene is also known as PTFE, which is abbreviated as PTFE, or Teflon, which is a trade name of DuPont, and has a chemical resistance and a smooth surface for most chemicals. Maintains its physical properties over a wide temperature range (-270 ° C to 250 ° C). Because of this property, PTFE is used in gaskets, bearings, inner walls of containers and pipes, valve and pump parts used in corrosive environments, protective coatings for cookware, saw blades and other products.
Particularly, polytetrafluoroethylene (PTFE) has a property of being instantaneously fibrillated when it comes into contact with heat at about 250 ° C or more.
Fibrillated polytetrafluoroethylene has very high heat resistance, and in particular, the structure is very dense and oxygen can not pass through fibrillated polytetrafluoroethylene.
Accordingly, when heat is applied to the surface of the polyvinyl chloride product containing polytetrafluoroethylene, the product surface on the side to which the heat is applied is fibrillated, thereby preventing oxygen from being supplied to the polymer which is not burned.
That is, the polyvinyl chloride resin composition according to the present invention is able to exhibit the effect of stopping the combustion reaction (the effect of the pyrogenic digestion) by blocking the supply of oxygen, which is essential for the combustion reaction, due to the polytetrafluoroethylene.
Particularly, the effect of the pyrolytic digestion through fibrillation has a great advantage when a fire occurs. That is, the effect of the pyrolytic extinguishing through fibrillation can be sufficiently exhibited even if fibrillation occurs on a very thin surface, so that the chain reaction occurring when the polyvinyl chloride product is burned can be prevented in advance, In addition, since the generation of toxic gas generated by the combustion of polyvinyl chloride can be minimized, the damage can be minimized in the event of fire.
Aluminum hydroxide (ATH) or magnesium hydroxide (MDH) are typical flame retardants for plastics. They produce water (H 2 O) during the pyrolysis of plastic products, and when water is evaporated in the combustion of polymer plastic products, the temperature of the pyrolyzed polymer is lowered and the concentration of combustible gas is diluted. It also has the advantage of reducing the generation of smoke.
On the other hand, when antimony trioxide is used in combination with a halogen-based flame retardant, antimony trioxide binds to the halogen at the time of pyrolysis of a plastic polymer product to stop the chain reaction of free radicals, and the halogen- So as to dilute the concentration of the combustible gas and oxygen.
In addition, the zinc borate inhibits the chain reaction of free radicals during combustion and also reduces the generation of smoke, thereby enhancing the flame retardancy of the plastic polymer product.
Therefore, when they are included in the polyvinyl chloride resin together with the polytetrafluoroethylene, the flame retardancy of the polyvinyl chloride is further improved.
On the other hand, when polytetrafluoroethylene is included in the polyvinyl chloride resin, the polyvinyl chloride resin containing polytetrafluoroethylene has a problem in that the processability is lowered, while the polyvinyl chloride resin having the polytetrafluoroethylene has an advantage of exerting such a superior effect of the lipid oxidation .
Accordingly, the present inventors have found that the problem of lowering the workability can be solved by adding a processing aid to the resin composition of the present invention and adjusting the ratio of the nitrile and acrylic contained in the processing aid.
That is, a processing material is used as an additive to be used by kneading with a polyvinyl chloride product, a special resin, or the like, and is particularly used for improving processing efficiency.
The processing aid used in the present invention is an acrylic processing aid. Such an acrylic processing aid contains nitrile and acrylic components.
When an extrusion molded product is manufactured using a polyvinyl chloride resin, polyvinyl chloride may be undesirably hardened in a processing cylinder (barrel or the like), and the processing aid may prevent such a hardening phenomenon .
The processing aid used in the present invention is one having a lower melting temperature than polyvinyl chloride used.
Depending on the ratio of nitrile and acryl contained in the processing aid, the melting rate and melting point of the processing aid can be determined.
Particularly, when 0.1 to 5 parts by weight of polytetrafluoroethylene is contained in 100 parts by weight of polyvinyl chloride, 0.1 to 10 parts by weight of a processing aid containing nitrile and acrylic in a weight ratio of 1: 1 to 1:10 It has been found that, when used, it is possible to secure a very good processability while maintaining the maximum effect of the oxidation by the fibrillation.
Particularly, when polytetrafluoroethylene is included in the polyvinyl chloride resin as in the resin composition according to the present invention, some fibrillation phenomenon occurs at the temperature of processing the resin composition, And the present inventors have solved this problem by including the processing aid.
The processing aid exhibits a function of improving the property of dispersing polytetrafluoroethylene in polyvinyl chloride as a raw material.
The processing aid is first plasticized in a processing machine such as a processing cylinder to lower the temperature of the processing machine such as a molding machine cylinder to minimize the temperature and pressure applied inside the processing machine so that polytetrafluoroethylene is fibril A function of preventing the user from being exposed.
That is, when the polyvinyl chloride resin composition is processed in a processing machine such as a molding machine cylinder without the processing aid, plasticization of the resin composition is performed at a relatively higher temperature, thereby raising the temperature of the processing machine. The polytetrafluoroethylene may be undesirably fibrillated inside the processing equipment due to the temperature of the elevated processing equipment, which may result in a deterioration in the processability of the entire composition. However, when the processing aid is used, the resin composition is plasticized at a relatively low temperature, and the temperature of the processing equipment can be relatively lowered. In particular, it is possible to control the temperature at which the entire resin is plasticized by controlling the composition ratio of the nitrile and acrylic contained in the processing aid. Accordingly, it is possible to prevent the polytetrafluoroethylene from being undesirably fibrillated in the processing apparatus by adjusting the temperature to a temperature at which the polytetrafluoroethylene is not fibrillated.
As a method for producing a processing aid which can be used in the present invention, reference can be made to the method disclosed in Korean Patent Laid-open Publication No. 10-2006-0124307 (LG Chem).
The resin composition used in the present invention may further comprise a composite stabilizer for polyvinyl chloride in addition to the above components. The composite stabilizer exhibits a function of inhibiting or blocking thermal decomposition of plastics which may occur when the resin composition according to the present invention is mixed or molded at a high temperature. The complex stabilizer may be included in an amount of 3 to 10 parts by weight based on 100 parts by weight of polyvinyl chloride. When the content of the composite stabilizer is less than 3 parts by weight, the function of blocking the thermal decomposition of the polyvinyl chloride product is weak. When the content is more than 10 parts by weight, the processability of the resin composition is deteriorated.
The resin composition used in the present invention may further contain a lubricant in addition to the above components. The lubricant is a material that lubricates a metal surface in contact with the plastic during calendering, molding, and extrusion, thereby facilitating the flow. Stearic acid can be used as the lubricant used in the present invention. The lubricant may be included in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of polyvinyl chloride. When the content of the lubricant is less than 0.1 parts by weight, the lubricating function is deteriorated to lower the workability of the resin composition. When the amount of the lubricant is more than 5 parts by weight, the lubricant is uneconomical and the physical properties of the resin composition may deteriorate.
The resin composition used in the present invention may further contain at least one component selected from the group consisting of a pigment, a plasticizer, a filler, an antioxidant, a UV stabilizer, an antistatic agent, an impact modifier, or a mixture thereof in addition to the above components.
The pigment exhibits a function of imparting various colors to various products made of the polyvinyl chloride resin composition and may be included in various contents depending on the kind of the pigment.
The plasticizer exhibits a function of increasing the flexibility, workability or extensibility of the polyvinyl chloride resin composition, and it is possible to use various plasticizers generally used in the plastic field. The plasticizer may be included in an amount of about 0.1 to 100 parts by weight based on 100 parts by weight of polyvinyl chloride.
The filler refers to an extender filler added in large quantities for the purpose of cost reduction or a reinforcing filler added to improve mechanical, thermal, electrical properties or workability in addition to the resin composition as the main raw material. As the filler, various fillers used in the plastic field may be used, for example, calcium carbonate may be used. The filler may be included in an amount of about 1 to 100 parts by weight based on 100 parts by weight of polyvinyl chloride.
The antioxidant functions to inhibit or block the chemical reaction between the polyvinyl chloride product and oxygen, thereby preventing the product from being degraded and losing its inherent physical properties.
The ultraviolet light stabilizer exerts a function of inhibiting or blocking the discoloration of the polyvinyl chloride product from ultraviolet rays or loss of mechanical properties.
The antistatic agent exhibits a function of suppressing or eliminating the generation of static electricity formed on the surface of the polyvinyl chloride product.
The impact modifier exhibits a function of improving the impact resistance of the polyvinyl chloride product.
The polyvinyl chloride resin used in the present invention can be used individually or in a combination thereof regardless of the degree of polymerization and the particle size of a single resin and a paste resin, and regardless of the preparation method.
Hereinafter, specific examples of the polyvinyl chloride resin composition according to the present invention and a method for producing a highly flame-retardant polyvinyl chloride product using the same, and various comparative examples in which the effects of the present invention can be clearly compared and confirmed will be described.
Example 1
(PVC), 5 kg of antimony trioxide, 5 kg of zinc borate, 25 kg of aluminum hydroxide, 20 kg of calcium carbonate, 5 kg of PVC composite stabilizer, 45 kg of plasticizer (TOTM), 1 g of polytetrafluoroethylene And 5 kg of a processing aid containing nitrile and acryl in a weight ratio of 1: 5 were mixed to prepare a highly flame retardant polyvinyl chloride resin composition of the present invention.
Example 2
The resin composition mixed according to Example 1 was molded into an pellet by an extruder, cut into pellets, placed in a frame of width x length x height 150 cm x 150 cm x 3 cm, At a temperature of about 350 kgf / cm < 2 > for about 6 minutes to prepare a high flame retardant polyvinyl chloride sample.
Example 3
(PVC), 5 kg of antimony trioxide, 5 kg of zinc borate, 25 kg of aluminum hydroxide, 20 kg of calcium carbonate, 5 kg of PVC composite stabilizer, 45 kg of plasticizer (TOTM), 1 g of polytetrafluoroethylene Kg, and 8 kg of a processing aid containing nitrile and acrylic in a weight ratio of 1: 5 were mixed to prepare a highly flame retardant polyvinyl chloride resin composition of the present invention.
Example 4
A wire sample was prepared using the resin composition mixed according to Example 3 as a coating of 0.6 / 1 kV F-CV 1C x 25 mm cable.
Comparative Example 1
100 kg of polyvinyl chloride (PVC), 5 kg of antimony trioxide, 5 kg of zinc borate, 25 kg of aluminum hydroxide, 20 kg of calcium carbonate, 5 kg of PVC composite stabilizer and 45 kg of plasticizer (TOTM) A resin composition was prepared, and a polyvinyl chloride sample was prepared using the hot press in the same manner as in Example 2 with respect to the resin composition thus prepared.
Comparative Example 2
100 kg of polyvinyl chloride (PVC), 5 kg of antimony trioxide, 5 kg of zinc borate, 25 kg of aluminum hydroxide, 20 kg of calcium carbonate, 5 kg of PVC composite stabilizer and 45 kg of plasticizer (TOTM) A resin composition was prepared, and a wire sample was prepared in the same manner as in Example 4 with respect to the resin composition thus prepared.
[Flammability test]
Using one of the polyvinyl chloride samples of Example 2 and Comparative Example 1, one of the flame retardant performance tests, the oxygen index, was measured according to ASTM D2863. The results are shown in Table 1 below.
In order to test the flame retardancy of the wire samples of Example 4 and Comparative Example 2, the oxygen index was measured according to ASTM 2863, and the results are shown in Table 2 below.
In order to test the flame retardant performance of the wire samples of Example 4 and Comparative Example 2, the vertical flame test KS C IEC 60332-3-23, which is one of the flame retardant performance tests (electrical cable flame retardancy test under the fire condition- - Part 3: Flame test of vertically arranged cables or wires - Category B) was carried out and the results are shown in Table 3 below.
(Category-B)
The results of Tables 1 and 2 show that the oxygen indexes of Examples 2 and 4 according to the present invention are higher than those of Comparative Examples 1 and 2, , Which is interpreted as a result supporting the excellent flame retardant performance of the resin composition according to the present invention.
It can be seen from Table 3 that the combustion length of the cable was measured under actual fire conditions and that the combustion length of Example 4 was much shorter than that of Comparative Example 2, It is interpreted as a result supporting the flame retarding performance.
[Strength test]
Impact strength (kg · cm / cm 2) was tested according to ASTM D256 (Izod impact strength test) using the samples of Example 2 and Comparative Example 1, and the results are shown in Table 4 below.
[Processability test]
The resin composition of Example 1 and the resin composition used in Comparative Example 1 were tested for their injection and extrusion processability and were evaluated for their ability to be extruded and extruded 1 to 5 (1: excellent workability, 2: excellent workability, 3: : Poor workability, and 5: workability and very poor).
Impact strength (kg · cm / ㎠)
From the results of Table 4, it can be seen that Example 2 according to the present invention shows an excellent impact strength as compared with Comparative Example 1, which is a result of supporting the excellent impact strength of the resin composition according to the present invention Is interpreted.
In addition, the results of Table 4 show that the resin composition of Example 1 according to the present invention has excellent processability as compared with the resin composition of Comparative Example 1.
Claims (6)
Wherein the composition further comprises 3 to 10 parts by weight of a composite stabilizer for polyvinyl chloride.
Wherein the composition further comprises 0.1 to 5 parts by weight of a lubricant.
Wherein the composition further comprises at least one component selected from the group consisting of a pigment, a plasticizer, a filler, an antioxidant, an ultraviolet stabilizer, an antistatic agent, an impact modifier, or a mixture thereof.
Injecting or extruding the mixture to provide a workpiece; And
And molding the workpiece. ≪ RTI ID = 0.0 > 11. < / RTI >
The method further comprises adding at least one component selected from the group consisting of a complex stabilizer, a lubricant, a pigment, a plasticizer, a filler, an antioxidant, a UV stabilizer, an antistatic agent, an impact modifier, Method of manufacturing flame retardant polyvinyl chloride products.
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| CN109206790A (en) * | 2018-09-19 | 2019-01-15 | 安徽正华电气有限公司 | A kind of fire-retardant toughened plastics and preparation method thereof |
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| CN109206790A (en) * | 2018-09-19 | 2019-01-15 | 安徽正华电气有限公司 | A kind of fire-retardant toughened plastics and preparation method thereof |
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