KR20130036469A - Method of producing pva sponge - Google Patents
Method of producing pva sponge Download PDFInfo
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- KR20130036469A KR20130036469A KR1020110100564A KR20110100564A KR20130036469A KR 20130036469 A KR20130036469 A KR 20130036469A KR 1020110100564 A KR1020110100564 A KR 1020110100564A KR 20110100564 A KR20110100564 A KR 20110100564A KR 20130036469 A KR20130036469 A KR 20130036469A
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- pva
- aqueous solution
- hexamethylene tetramine
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- 238000000034 method Methods 0.000 title claims 3
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000007864 aqueous solution Substances 0.000 claims abstract description 62
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 34
- 239000004312 hexamethylene tetramine Substances 0.000 claims abstract description 34
- 229960004011 methenamine Drugs 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 229920002261 Corn starch Polymers 0.000 claims description 7
- 239000008120 corn starch Substances 0.000 claims description 7
- -1 hexamethylene tetramin Chemical compound 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000012895 dilution Substances 0.000 claims 1
- 238000010790 dilution Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000006359 acetalization reaction Methods 0.000 abstract 1
- KVIPHDKUOLVVQN-UHFFFAOYSA-N ethene;hydrate Chemical compound O.C=C KVIPHDKUOLVVQN-UHFFFAOYSA-N 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 49
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 48
- 239000004372 Polyvinyl alcohol Substances 0.000 description 47
- 125000000914 phenoxymethylpenicillanyl group Chemical group CC1(S[C@H]2N([C@H]1C(=O)*)C([C@H]2NC(COC2=CC=CC=C2)=O)=O)C 0.000 description 47
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—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 an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use 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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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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)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
본 발명은 피브이에이 스폰지(PVA sponge) 제조방법에 관한 것으로, 더 상세하게는 환경규제물질의 사용을 피하고 작업장의 환경을 개선시킬 수 있는 PVA 스폰지 제조방법에 관한 것이다.
The present invention relates to a PVA sponge manufacturing method, and more particularly to a PVA sponge manufacturing method that can avoid the use of environmental regulatory substances and improve the environment of the workplace.
PVA 스폰지는 젖은 상태에서는 탄력이 우수하고 매우 부드러운 반면 건조된 상태에서는 딱딱해지는 특징이 있어, 반도체 웨이퍼의 세정용 롤러(roller), TFT LCD용 글라스의 세정 및 반송용 롤러의 제조에 사용될 뿐만 아니라, 의료용 거즈, 미용타올, 스포츠타올, 주방용 발판 매트, 미생물용 담채의 재료로 사용되는 등 그 활용도가 매우 높다.
PVA sponge is excellent in elasticity and very soft in the wet state, but hardened in the dry state, it is not only used for cleaning rollers for semiconductor wafers, for cleaning and conveying rollers for TFT LCD glass, Medical gauze, beauty towels, sports towels, kitchen scaffolding mats, microbial tins are used as a material of the very high utilization.
PVA 스폰지의 원료인 PVA(polyvinyl alcohol 또는 polyvinyl acetate)는 수용성 플라스틱의 하나로 포발(poval)이라고도 한다. 물 이외의 보통의 유기용매에는 녹지 않는 백색 분말로 140℃ 정도까지는 안정한 상태를 유지한다. 직물(織物)의 풀, 종이의 사이징이나 에멀션화안정제(乳化安定劑) 등으로 사용된다.
PVA (polyvinyl alcohol or polyvinyl acetate), a raw material for the PVA sponge, is one of the water-soluble plastics and is also called a poval. It is a white powder that is insoluble in ordinary organic solvents other than water and maintains a stable state up to about 140 ° C. It is used as a paste for textiles, sizing of paper or an emulsifying stabilizer.
이러한 PVA를 원료로 PVA 스폰지를 제조한다. PVA와 물을 일정 비율로 섞은 다음 가열하여 PVA 수용액을 얻은 다음에 기공형성제로 옥수수 전분 등을 투입하고, 포르말린(formalin) 등을 투입하여 교반시킨 다음, 촉매재로 황산(H2SO4) 등을 투입한 후, 미리 준비된 금형에 주입하여 가열하여 아세탈화시키면 PVA 스폰지가 된다. 이렇게 아세탈화된 PVA 스폰지를 금형에서 추출하여 충분히 세척한 후 규격에 따라 절단 및 가공하여 제품화한다.
PVA sponges are prepared from these PVAs. After mixing PVA and water in a certain ratio, the mixture was heated to obtain a PVA aqueous solution, followed by adding corn starch as a pore-forming agent, adding formalin and stirring, and then adding sulfuric acid (H 2 SO 4) as a catalyst. Then, it is injected into a mold prepared in advance, heated and acetalized to form a PVA sponge. The acetalized PVA sponge is extracted from the mold and thoroughly washed, and then cut and processed according to the specifications to produce a product.
위와 같은 PVA 스폰지 제조방법은 유해물질의 사용 규제가 확산되는 추세에도 불구하고, 사용규제물질인 포르말린(formalin) 또는 파라포름알데히드(paraformaldehyde)를 사용하지 않으면 아니 되는 문제점이 있다.
The PVA sponge manufacturing method as described above has a problem in that, despite the trend of proliferation of the use of hazardous substances, use of formalin or paraformaldehyde, which is a use restriction substance, is required.
본 발명은 위와 같은 문제점을 해결하기 위하여, 환경규제물질의 사용을 피하고 제조 작업장의 환경도 개선시킬 수 있는 PVA 스폰지 제조방법을 제공하는데 그 목적이 있다.
In order to solve the above problems, an object of the present invention is to provide a PVA sponge manufacturing method that can avoid the use of environmental regulatory substances and improve the environment of the manufacturing workplace.
본 발명은 위와 같은 목적을 달성하기 위하여, 먼저 물에 PVA 수지를 섞어 가열하여 PVA 수용액을 얻고, 상기 PVA 수용액에 기공형성제를 투입하고, 상기 PVA 수용액과는 별도로 물에 헥사메틸렌 테트라민(hexamethylene tetramine)을 투입하고 가열하여 헥사메틸렌 테트라민 수용액을 얻는 후, 상기 PVA 수용액에 상기 헥사메틸렌 테트라민 수용액을 투입하여 교반시켜서 PVA 및 헥사메틸렌 테트라민 수용액을 얻은 후, 상기 PVA 및 헥사메틸렌 테트라민 수용액에 촉매제를 투입한 후, 상기 촉매제가 투입된 상기 PVA 및 헥사메틸렌 테트라민 수용액을 미리 준비한 금형에 주입하여 오븐에 넣고 가열하여 아세탈화시켜서 PVA 스폰지를 제조한다.
In order to achieve the above object, the present invention is to first mix the PVA resin in water and heated to obtain a PVA aqueous solution, to add a pore-forming agent to the PVA aqueous solution, and hexamethylene tetramine in water separately from the PVA aqueous solution tetramine) was added and heated to obtain an aqueous solution of hexamethylene tetramine. The aqueous solution of hexamethylene tetramine was added to the PVA solution, followed by stirring to obtain an aqueous solution of PVA and hexamethylene tetramine. After the catalyst was added to the catalyst, the PVA and the hexamethylene tetramine aqueous solution to which the catalyst was added were injected into a mold prepared in advance, heated in an oven, and acetalized to prepare a PVA sponge.
위와 같이, 본 발명은 그 어느 때 보다도 환경의 중요성이 국내외적으로 강조되는 추세에 부응하여 환경규제물질의 사용을 피할 수 있고, 스폰지 제조 작업중에 발생되는 유해가스의 배출을 줄이고 작업자들의 건강을 위협하는 작업장의 환경을 개선시킬 수 있는 효과가 있다.
As described above, the present invention can avoid the use of environmentally regulated materials in response to the trend that the importance of the environment is emphasized at home and abroad more than ever, reduce the emission of harmful gases generated during sponge manufacturing operations and threaten the health of workers This has the effect of improving the workplace environment.
이하 본 발명의 PVA 스폰지 제조방법에 대하여 상세히 설명한다.Hereinafter, the PVA sponge manufacturing method of the present invention will be described in detail.
먼저, 물에 물 중량의 16~21%의 PVA 수지를 계량하여 섞은 후 30℃ 이상의 온도로 가열하여 PVA 수용액을 얻고, PVA 수용액에 기공형성제로 옥수수 전분 등을 형성시키고자 하는 기공의 비율에 따라 상기 PVA 수용액의 25~45% 투입한다. 이와 별도로, 물에 물 중량의 28~35%의 헥사메틸렌 테트라민[hexamethylene tetramine]을 투입하여 40℃ 이상의 온도로 가열하여 헥사메틸렌 테트라민 수용액을 얻는다.
First, the PVA resin of 16-21% of the water weight is weighed and mixed with water, and then heated to a temperature of 30 ° C. or higher to obtain a PVA aqueous solution, depending on the proportion of pores to form corn starch as a pore-forming agent in the PVA aqueous solution. 25-45% of the PVA aqueous solution is added. Separately, hexamethylene tetramine (28-35% of hexamethylene tetramine) by weight of water is added to water and heated to a temperature of 40 ° C. or more to obtain an aqueous solution of hexamethylene tetramine.
상기 PVA 수용액에 PVA 수용액의 12~18%의 헥사메틸렌 테트라민 수용액을 투입하여 교반시켜서 PVA 및 헥사메틸렌 테트라민 수용액을 얻은 후, 희석농도가 약 50%인 황산수용액 등 산 계열의 촉매제를 전체 수용액의 19~21% 투입한 후, 미리 준비한 금형에 주입하여 오븐에 넣고 62~80℃ 온도로 29~34 시간 가열(숙성)하여 아세탈화시킨다. 이렇게 아세탈화된 PVA 스폰지를 금형에서 추출하여 충분히 세척한 후 규격에 따라 절단 및 가공하여 제품화한다.
12 to 18% hexamethylene tetramine aqueous solution of PVA aqueous solution was added to the PVA aqueous solution, followed by stirring to obtain an aqueous PVA and hexamethylene tetramine aqueous solution. After 19-21% of the solution is injected, it is poured into a mold prepared in advance, placed in an oven and heated (aged) at 62-80 ° C. for 29-34 hours to be acetalized. The acetalized PVA sponge is extracted from the mold and thoroughly washed, and then cut and processed according to the specifications to produce a product.
상기 헥사메틸렌 테트라민과 촉매제의 양과 오븐에서의 가열온도와 시간에 따라 제품의 탄력과 밀도가 달라진다. 따라서, 좀더 탄력이 있고 밀도가 높은 제품을 생산하려고 할 때는 PVA 수지의 양을 늘리고, 헥사메틸렌 테트라민과 촉매제의 비율을 늘리며, 오븐의 온도를 높이거나 가열시간을 늘리고, 좀더 부드럽고 밀도가 낮은 제품을 생산하려고 할 때는 PVA 수지의 양을 줄이고, 헥사메틸렌 테트라민과 촉매제의 비율을 줄이며, 오븐의 온도를 낮추거나 가열시간을 적게 한다.
The elasticity and density of the product vary depending on the amount of the hexamethylene tetramine and the catalyst and the heating temperature and time in the oven. Therefore, if you want to produce a more elastic and denser product, increase the amount of PVA resin, increase the ratio of hexamethylene tetramin and catalyst, increase the temperature of the oven or increase the heating time, and make the product softer and less dense. When trying to produce PVA resin, reduce the amount of PVA resin, reduce the ratio of hexamethylene tetramine and the catalyst, lower the temperature of the oven or reduce the heating time.
실시예 1)Example 1
먼저 물에 물 중량의 18%의 PVA 수지를 계량하여 섞은 후 30℃ 이상의 온도로 가열하여 PVA 수용액을 얻고, PVA 수용액에 기공형성제로 옥수수 전분을 상기 PVA 수용액의 40% 투입한다. 이와 별도로, 물에 물 중량의 28~35%의 헥사메틸렌 테트라민을 투입하여 40℃ 이상의 온도로 가열하여 헥사메틸렌 테트라민 수용액을 얻는다.
First, 18% of the water by weight PVA resin is weighed and mixed, and heated to a temperature of 30 ℃ or more to obtain a PVA aqueous solution, corn starch as a pore-forming agent to the PVA aqueous solution 40% of the PVA aqueous solution. Separately, hexamethylene tetramine of 28 to 35% of the weight of water is added to water and heated to a temperature of 40 ° C. or higher to obtain an hexamethylene tetramin aqueous solution.
상기 PVA 수용액에 PVA 수용액의 14~15%의 헥사메틸렌 테트라민 수용액을 투입하여 교반시켜서 PVA 및 헥사메틸렌 테트라민 수용액을 얻은 후, 희석농도가 약 50%인 황산수용액 등 산 계열의 촉매제를 전체 수용액의 19~20% 투입한 후, 미리 준비한 금형에 주입하여 오븐에 넣고 62~70℃(설정온도 70℃)의 온도로 32~34 시간 가열하여 아세탈화시킨다. 이 조건으로 생산된 제품은 부드럽고 수지의 밀도가 낮으며 기공의 수가 더 많고 조밀한 특징이 있다
14 to 15% of hexamethylene tetramine aqueous solution of PVA solution was added to the PVA aqueous solution, followed by stirring to obtain an aqueous PVA and hexamethylene tetramine solution. After 19-20% of the solution was injected, it was poured into a mold prepared in advance, placed in an oven, and heated to a temperature of 62 to 70 ° C (set temperature of 70 ° C) for 32 to 34 hours to be acetalized. The products produced under these conditions are soft, have low density of resin, have more pores, and have dense features.
실시예 2)Example 2
먼저 물에 물 중량의 20%의 PVA 수지를 계량하여 섞은 후 30℃ 이상의 온도로 가열하여 PVA 수용액을 얻고, PVA 수용액에 기공형성제로 옥수수 전분을 상기 PVA 수용액의 30% 투입한다. 이와 별도로, 물에 물 중량의 28~35%의 헥사메틸렌 테트라민을 투입하여 40℃ 이상의 온도로 가열하여 헥사메틸렌 테트라민 수용액을 얻는다.
First, 20% of water by weight of PVA resin is weighed and mixed, and heated to a temperature of 30 ° C. or more to obtain a PVA aqueous solution, and 30% of the PVA aqueous solution is added to corn starch as a pore-forming agent. Separately, hexamethylene tetramine of 28 to 35% of the weight of water is added to water and heated to a temperature of 40 ° C. or higher to obtain an hexamethylene tetramin aqueous solution.
상기 PVA 수용액에 PVA 수용액의 16~17%의 헥사메틸렌 테트라민 수용액을 투입하여 교반시켜서 PVA 및 헥사메틸렌 테트라민 수용액을 얻은 후, 희석농도가 약 50%인 황산수용액 등 산 계열의 촉매제를 전체 수용액의 20~21% 투입한 후, 미리 준비한 금형에 주입하여 오븐에 넣고 70~80℃(설정온도 80℃)의 온도로 29~32 시간 가열하여 아세탈화시킨다. 이 조건으로 생산된 제품은 탄력이 좋고 수지의 밀도가 높으며 기공의 수가 적고 기공의 간격이 더 넓은 특징이 있다
16-17% hexamethylene tetramine aqueous solution of PVA aqueous solution was added to the PVA aqueous solution, followed by stirring to obtain PVA and hexamethylene tetramine aqueous solution, and then an acid-based catalyst such as an aqueous sulfuric acid solution having a diluted concentration of about 50% 20-21% of the solution is poured into a mold prepared in advance, placed in an oven, heated at a temperature of 70-80 ° C. (set temperature 80 ° C.) for 29-32 hours, and acetalized. Products produced under these conditions are characterized by high elasticity, high resin density, small number of pores, and wider pore spacing.
위와 같이, 본 발명은 그 어느 때 보다도 환경의 중요성이 국내외적으로 강조되는 추세에 부응하여 환경규제물질의 사용을 피할 수 있고, 스폰지 제조 작업중에 발생되는 유해가스의 배출을 줄이고 작업자들의 건강을 위협하는 작업장의 환경을 개선시킬 수 있다.
As described above, the present invention can avoid the use of environmentally regulated materials in response to the trend that the importance of the environment is emphasized at home and abroad more than ever, reduce the emission of harmful gases generated during sponge manufacturing operations and threaten the health of workers Improve the workplace environment.
본 발명은 이상의 설명에 한정되지 아니하고 본 발명의 기술적 사상의 범위 내에서 다양한 변화와 변경이 가능하다. 따라서 위의 기재 내용에 의하여 본 발명의 범위가 한정되지 아니한다.
The present invention is not limited to the above description, and various changes and modifications can be made within the scope of the technical idea of the present invention. Therefore, the scope of the present invention is not limited by the above description.
본 발명은 반도체 웨이퍼의 세정용 롤러(roller), TFT LCD용 글라스의 세정 및 반송용 롤러의 제조 등에 사용되는 PVA 스폰지의 제조에 사용될 수 있다.The present invention can be used in the manufacture of PVA sponges used for cleaning rollers for semiconductor wafers, for cleaning TFT glass, and for carrying rollers.
Claims (4)
상기 PVA 수용액에 기공형성제를 투입하고,
상기 PVA 수용액과는 별도로 물에 헥사메틸렌 테트라민을 투입하고 가열하여 헥사메틸렌 테트라민 수용액을 얻는 후,
상기 PVA 수용액에 상기 헥사메틸렌 테트라민 수용액을 투입하여 교반시켜서 PVA 및 헥사메틸렌 테트라민 수용액을 얻은 후,
상기 PVA 및 헥사메틸렌 테트라민 수용액에 촉매제를 투입한 후,
상기 촉매제가 투입된 상기 PVA 및 헥사메틸렌 테트라민 수용액을 미리 준비한 금형에 주입하여 오븐에 넣고 가열하여 아세탈화시켜서 제조하는 것을 특징으로 하는 PVA 스폰지 제조방법
PVA resin is mixed with water and heated to obtain a PVA aqueous solution,
Pore forming agent is added to the PVA aqueous solution,
Hexamethylene tetramine was added to water separately from the PVA aqueous solution, followed by heating to obtain an aqueous solution of hexamethylene tetramine.
After the aqueous solution of hexamethylene tetramine was added to the aqueous PVA solution and stirred to obtain an aqueous solution of PVA and hexamethylene tetramine,
After the catalyst was added to the PVA and hexamethylene tetramine aqueous solution,
The PVA and hexamethylene tetramine aqueous solution to which the catalyst is added is injected into a mold prepared in advance, put into an oven, and heated to be acetalized to produce a sponge.
상기 PVA 수용액에 기공형성제로 옥수수 전분을 상기 PVA 수용액의 25~45%를 투입하고,
상기 PVA 수용액과는 별도로 물에 물 중량의 28~35%의 헥사메틸렌 테트라민을 투입하고 40℃ 이상의 온도로 가열하여 헥사메틸렌 테트라민 수용액을 얻는 후,
상기 PVA 수용액에 PVA 수용액의 12~18%의 상기 헥사메틸렌 테트라민 수용액을 투입하여 교반시켜서 PVA 및 헥사메틸렌 테트라민 수용액을 얻은 후,
상기 PVA 및 헥사메틸렌 테트라민 수용액에 촉매제로 희석농도가 50%인 황산수용액을 전체 수용액의 19~21% 투입한 후,
상기 촉매제가 투입된 상기 PVA 및 헥사메틸렌 테트라민 수용액을 미리 준비한 금형에 주입하여 오븐에 넣고 62~80℃ 온도로 29~34 시간 가열하여 아세탈화시켜서 제조하는 것을 특징으로 하는 PVA 스폰지 제조방법
PVA resin of 16-21% of the weight of water is mixed with water and heated to a temperature of 30 ° C. or higher to obtain a PVA aqueous solution,
25 to 45% of the PVA aqueous solution was added to corn starch as a pore-forming agent in the PVA aqueous solution,
Apart from the PVA aqueous solution, 28-35% of hexamethylene tetramine of water weight was added to water and heated to a temperature of 40 ° C. or higher to obtain an hexamethylene tetramin aqueous solution.
12 to 18% of the hexamethylene tetramine aqueous solution of the PVA aqueous solution was added to the PVA aqueous solution, followed by stirring to obtain an aqueous PVA and hexamethylene tetramine solution.
Into the PVA and hexamethylene tetramine aqueous solution, a sulfuric acid solution having a dilution concentration of 50% was added 19-21% of the total aqueous solution as a catalyst.
PVA and hexamethylene tetramine aqueous solution into which the catalyst is added is injected into a mold prepared in advance, put into an oven and heated to a temperature of 62 to 80 ° C. for 29 to 34 hours to produce a PVA sponge.
상기 PVA 수지의 비율이 물 중량의 18%이고,
상기 기공형성제인 옥수수 전분의 비율이 상기 PVA 수용액의 40%이고,
상기 헥사메틸렌 테트라민 수용액의 비율이 PVA 수용액의 14~15%이고,
상기 오븐에서의 가열온도가 62~70℃이고,
상기 오븐에서의 가열시간이 32~34 시간인 것을 특징으로 하는 PVA 스폰지 제조방법
The method of claim 2,
The proportion of PVA resin is 18% of the weight of water,
The ratio of corn starch which is the pore-forming agent is 40% of the PVA aqueous solution,
The ratio of the hexamethylene tetramin aqueous solution is 14-15% of the PVA aqueous solution,
Heating temperature in the oven is 62 ~ 70 ℃,
PVA sponge manufacturing method characterized in that the heating time in the oven is 32 ~ 34 hours
상기 PVA 수지의 비율이 물 중량의 20%이고,
상기 기공형성제인 옥수수 전분의 비율이 상기 PVA 수용액의 30%이고,
상기 헥사메틸렌 테트라민 수용액의 비율이 PVA 수용액의 16~17%이고,
상기 촉매제인 황산수용액의 비율이 전체 수용액의 20~21%이고,
상기 오븐에서의 가열온도가 70~80℃이고,
상기 오븐에서의 가열시간이 29~32 시간인 것을 특징으로 하는 PVA 스폰지 제조방법The method of claim 2,
The proportion of PVA resin is 20% of the weight of water,
The ratio of corn starch as the pore forming agent is 30% of the PVA aqueous solution,
The proportion of the hexamethylene tetramin aqueous solution is 16-17% of the PVA aqueous solution,
The ratio of the aqueous sulfuric acid solution which is the catalyst is 20 to 21% of the total aqueous solution,
The heating temperature in the oven is 70 ~ 80 ℃,
PVA sponge production method characterized in that the heating time in the oven is 29 ~ 32 hours
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| CN103554801A (en) * | 2013-08-28 | 2014-02-05 | 谭明宁 | Modified polyvinyl alcohol sponge and preparation method thereof |
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| CN103554801A (en) * | 2013-08-28 | 2014-02-05 | 谭明宁 | Modified polyvinyl alcohol sponge and preparation method thereof |
| WO2016003204A1 (en) * | 2014-07-01 | 2016-01-07 | 가톨릭관동대학교산학협력단 | Method for manufacturing compressed receptor for medical prosthesis, compressed receptor using same, and medical prosthesis |
| KR20160003506A (en) * | 2014-07-01 | 2016-01-11 | 가톨릭관동대학교산학협력단 | Pressed object for medical implant |
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