KR20100133639A - With the effects of antimicrobial and heavy metal heupchakryeok poly resin for the manufacture of vinyl chloride can joseongmul chanter and chanter from manufacturing to a poly vinyl chloride - Google Patents

Abstract

PURPOSE: A resin composition for preparing a polyvinylchloride resin pipe is provided to suppress breeding of bacteria or mold, to purify polluted air, to reduce extrusion load, and to ensure excellent heavy metal absorption. CONSTITUTION: A resin composition for preparing a polyvinylchloride resin pipe with antibacterial property and heavy metal absorption includes 70%-85% polyvinylchloride resin, 5%-8% stabilizer, 4%-8% impact resistant agent, 3%-6% processing aid, 1%-3% calcium carbonate, and 2%-5% scoria. The polyvinylchloride resin pipe includes 70%-85% polyvinyl chloride resin, 5%-8% stabilizer, 4%-8% impact resistant agent, 3%-6% processing aid, 1%-3% calcium carbonate and 2%-5% scoria.

Description

Resin composition for producing polyvinyl chloride resin tube having the effect of antimicrobial activity and heavy metal adsorption power and polyvinyl chloride resin tube produced therefrom manufacturing to a poly vinyl chloride}

The present invention relates to a resin composition for producing a polyvinyl chloride resin tube having an effect of antimicrobial activity and heavy metal adsorption capacity, and a polyvinyl chloride resin tube produced therefrom. More specifically, it is possible to suppress the propagation of bacteria or fungi by mixing calcium carbonate and sea Korea. Resin composition for manufacturing polyvinyl chloride resin tubes and polyvinyl chloride water produced therefrom to purify contaminated air, to improve the productivity of antibacterial and heavy metal adsorption force with heavy metal adsorption capacity, and to reduce extrusion load and to increase moldability. It is about branch office.

Ordinary cast iron pipes, copper pipes, etc. have defects such as deterioration of workability due to their heavy weight, reduction of water permeability due to oxidation and corrosion, contamination of tap water due to red water and white water phenomenon, and accordingly, vinyl chloride made of vinyl chloride resin. Resin pipes are rapidly being replaced by water pipes.

On the other hand, in spite of high work efficiency due to corrosion resistance and light weight, the vinyl chloride resin tube has a problem that even if it is made of hard vinyl chloride resin, the impact resistance is weak and easily broken by external pressure.

The vinyl chloride resin tube has an inverse relationship with lowering the tensile strength and the flat load strength when the impact resistance is enhanced by reinforcing additives and the like, and the impact resistance is decreased when the tensile strength and the flat load strength are increased. There is a difficulty.

In addition, as impact modifiers, chlorinated polyethylene resin (CPE; Chlorinated Polyethylene (hereinafter referred to as 'CPE'), polymethyl methacrylate-butadiene-styrene resin (MBS; methylmethacrylate-Butadien-Styrene terpolymer (hereinafter referred to as 'MBS'), acrylic Although resins and the like are used, acrylic resin is an impact modifier for plastic windows and doors requiring long-term weather resistance, which is not suitable because it is incompatible with general pipe additives, and MBS-based impact modifiers and CPE-based impact modifiers are used as general pipe additives.

On the other hand, in the production of pipes mainly composed of polyvinyl chloride, when inorganic fillers such as calcium carbonate and talc are not used, the moldability is extremely high, such as the extrusion load increases due to the increase in extrusion load in molding such as extrusion molding. The lower the productivity, the lower the inorganic filler, and the use of relatively expensive resin or additives may cause problems such as increased production costs, the production of conventional polyvinyl chloride resin pipes In general, at least about 3 parts by weight of the inorganic filler is included.

The present invention has been made in view of the above problems of the conventional polyvinyl chloride resin tube, the object of which is to suppress the growth of bacteria or mold, purify the contaminated air, and has the effect of antibacterial and heavy metal adsorption capacity having a heavy metal adsorption capacity, Another object of the present invention is to provide a resin composition for producing a polyvinyl chloride resin tube, and a polyvinyl chloride resin tube manufactured therefrom, in which extrusion load is reduced and moldability is easily improved.

The above object of the present invention is a resin composition for producing a polyvinyl chloride resin tube, polyvinyl chloride resin 70% -85%, stabilizer 5% -8%, impact modifier 4% -8%, processing aid 3% -6 %, Calcium carbonate 1% -3%, Scoria (scoria) is achieved by the resin composition for the production of polyvinyl chloride resin tube having the effect of antibacterial and heavy metal adsorptive power, characterized in that made.

The polyvinyl chloride resin tube using the resin composition for producing a polyvinyl chloride resin tube of the present invention described above is polyvinyl chloride resin 70% -85%, stabilizer 5% -8%, impact modifier 4% -8%, processing aid 3%- It is characterized by consisting of 6%, calcium carbonate 1% -3%, scoria 2% -5%.

The present invention has the advantage of inhibiting the growth of bacteria or mold, purifying the contaminated air, and has the effect of antibacterial and heavy metal adsorption power having a heavy metal adsorption capacity, and also improves productivity by reducing extrusion load and easy moldability have.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The resin composition which suppresses the growth of bacteria or molds, purifies the contaminated air, has the effect of antibacterial and heavy metal adsorption with heavy metal adsorption capacity, and improves productivity by reducing extrusion load and easy formability. Polyvinyl chloride resin 70% -85%, stabilizer 5% -8%, impact modifier 4% -8%, processing aid 3% -6%, calcium carbonate 1% -3%, scoria 2% -5% Including the structure made.

Polyvinyl chloride resin in the composition may preferably be used in the range of polymerization degree 700 to 1,300. When the degree of polymerization of the polyvinyl chloride resin is less than 800, there may be a problem that mechanical properties such as impact strength and tensile strength are lowered, on the contrary, when the polyvinyl chloride resin exceeds 1,300, it is difficult to process at a general processing temperature, processing temperature If it is increased, there may be a problem that the thermal stability is lowered.

In the above composition, calcium carbonate is often added for the purpose of controlling coloring, electrical insulation, aging resistance, thermal expansion, shrinkage, etc., and when the calcium carbonate is used in less than 1%, thermal expansion, shrinkage If there is a problem that the increase, if the contrary exceeds 3%, there may be a problem that the thermal expansion, shrinkage is increased and the production cost is increased.

In the above composition, the stabilizer is necessary to prevent coloring and decomposition after processing and after commercialization since the polyvinyl chloride resin is not stable to heat or light, and when the stabilizer is used at less than 5%, the thermal stability is lowered. There may be a problem that carbonization occurs during processing, on the contrary, if it exceeds 8%, impact strength is lowered, there may be a problem that the production cost is increased.

In this composition, scoria is a blackish, porous basic volcanic eruption, also called rock material. SKOREA forms irregular rocks with many irregularities such as dark black, black gray, brown, and red, and its specific gravity is small because it is porous. Such Korea is a natural material that has the ability to combat E. coli of 92 ~ 93% of far infrared ray, 97% of deodorization rate, and 99.9% of antibacterial fungi in natural state. It is proven to be superior.

As a result of analyzing the chemical composition, there is no harmful component to the human body, and the component that adsorbs heavy metals such as mercury or lead is very excellent. Table 1 shows the chemical analysis and characteristics of this Korea by color.

Silicon oxide Oxidation
Aluminum Iron oxide Oxidation
titanium Oxidation
calcium Magnesium oxide Wear rate
(%) unit
weight
(g / ㎠) Absolute Dry Weight Refractoriness
(℃) maroon 45.40 16.87 14.92 3.97 6.95 6.13 57.82 0.69 1.70 1,141 partridge 45.70 19.87 15.55 2.92 4.41 6.64 67.22 0.75 1.31 1,210 grey 46.22 16.26 11.66 2.35 5.09 7.91 47.25 0.68 1.80 1,120 black 40.02 19.15 12.27 2.6 8.16 6.59 17.00 0.65 1.90 1,188

As described above, SKOREA can obtain various effects in various fields, and in particular, it can be seen that the purification ability of pollutants is excellent due to the characteristics of porous material.

In the above composition, the impact modifier may modify the impact resistance by adding 4 to 8% of a rubbery elastic polymer to the hard product. In particular, a distinct effect can be seen between 5 to 6% of the added amount. When the impact modifier is used in less than 4%, there may be a problem that the impact strength is lowered, if the pressure is greater than 8%, the extrusion load is high, there may be a problem that the production cost is increased.

The processing aid in the above composition is used for the purpose of enhancing the formability during extrusion molding of the obtained composition and at the same time to enhance the mixing of the vinyl chloride-ethylene vinyl acetate (VC-EVA) copolymer into the vinyl chloride resin matrix.

When the processing aid is used less than 3%, there may be a problem that the effect of the processing aid does not appear, on the contrary, if it exceeds 6%, the extrusion load may be high, the production cost may be increased.

On the other hand look at a preferred embodiment of the present invention by the resin composition as described above are as follows.

Example 1

A polyvinyl chloride resin composition comprising 70% polyvinyl chloride resin having a degree of polymerization of 1,000, stabilizer 8%, impact modifier 8%, processing aid 6%, calcium carbonate 3%, and scoria 5%.

Example 2

A polyvinyl chloride resin composition comprising 75% polyvinyl chloride resin having a degree of polymerization of 1,000, stabilizer 6%, impact modifier 5%, processing aid 4%, calcium carbonate 2%, and scoria 3%.

Example 3

A polyvinyl chloride resin composition comprising 85% polyvinyl chloride resin having a degree of polymerization of 1,000, stabilizer 5%, impact modifier 4%, processing aid 3%, calcium carbonate 1%, and scoria 2%.

Example 1 Example 2 Example 3 Conventional
pvc pipe
Antimicrobial

95.4%
93.2%
92.85
0
Heavy metals (lead)
Adsorption

98.1%
95.3%
95.1%
0

The present invention as described above has the effect of inhibiting the growth of bacteria or mold, purifying the contaminated air, and has the effect of antibacterial and heavy metal adsorption power having a heavy metal adsorption capacity, and also to reduce the extrusion load and easy moldability to improve productivity There is an advantage.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical scope of the present invention, and such modifications and modifications belong to the appended claims.

Claims (2)

In the resin composition for producing a polyvinyl chloride resin tube, Polyvinyl chloride resin 70% -85%, stabilizer 5% -8%, impact modifier 4% -8%, processing aid 3% -6%, calcium carbonate 1% -3%, scoria 2% -5% Resin composition for the production of polyvinyl chloride resin tube having the effect of antibacterial and heavy metal adsorption, characterized in that made. In polyvinyl chloride resin tube, Polyvinyl chloride resin 70% -85%, stabilizer 5% -8%, impact modifier 4% -8%, processing aid 3% -6%, calcium carbonate 1% -3%, scoria 2% -5% Polyvinyl chloride resin tube having the effect of antibacterial and heavy metal adsorption, characterized in that made.