Preparation and Properties of Antistatic Polyethylene Film Coated Polypropylene Non-woven Fabrics

Zongqian Wang,Dengfeng Wang,Yinchun Fang,Jieliang Shen 한국섬유공학회 2018 Fibers and polymers Vol.19 No.5

In this paper, antistatic PE/PP coated non-woven fabrics were prepared by the coating process of the antistatic finished PE films and PP non-woven fabrics using the heat pressing process of the hot melt adhesives. The antistatic finishing of polyethylene (PE) films and polypropylene (PP) non-woven fabrics were processed by one face foam finishing and dippad finishing process, respectively. The antistatic properties of PE/PP coated non-woven fabrics which were influenced by the antistatic finishing processes and the thickness of PE films were investigated. The static charges transmission mechanism of these coated non-woven fabrics was illustrated. The results revealed that the static charges were transferred and dissipated by forming the continuous conductive path and network between the film-adhesive and adhesive-fabric due to the hot melt adhesion and squeezing of the antistatic agents existing inside of of the non-woven fabrics matrix and on the film surface. The antistatic properties of coated non-woven fabrics were improved with the increasing of the antistatic agent concentration on the finishing solution. And the antistatic properties of PE films were greatly influenced by the film thickness, the thinner of PE films the much more obvious improvement of the film surface antistatic properties. The finishing process wouldn’t reduce the peeling strength of the coated non-woven fabrics. The antistatic properties of the PE/PP coated non-woven fabrics possessed high washing durability due to the crosslinking fixation effect of the hot melt adhesives which wouldn’t be weakened after several times washing.

지방산 아마이드계 섬유용 유연제 합성과 물성에 대한 연구: Part 2

임철환 ( Chul Hwan Lim ),김두원 ( Doo Won Kim ),노시태 ( Si Tae Noh ) 한국공업화학회 2003 공업화학 Vol.14 No.1

지방산과 폴리아민을 150℃에서 아마이드 반응에 의해 반응시켜 아마이드 결함을 가진 아미도 아민을 제조한 후, 1~3 torr를 3h 동안 유지하여 이미다졸린을 제조하였다. 이렇게 제조한 아미도 아민과 이미다졸린을 dimethyl sulfate (DMS), benzyl chloride (MBC)와 sodium chloroacetate (SMCA)를 사용하여 사급화를 진행하였다. 또한 사급화된 반응물을 유화시키기 위해 유화제를 첨가한 시스템과 첨가하지 않은 시스템으로 구분하여 사급화 유화물을 제조하였다. 폴리아민을 diethylenetriamine (DETA)를 사용한 모든 반응 시스템과 2-(2-Aminoethyl-amino)ethanol (AEEA)를 1:1로 반응한 시스템은 아미도 아민과 이미다졸린을 제조하였으나 2:1인 시스템은 이미다졸린을 제조하지 못했다. 사급화물의 pH에 따른 안정성을 관찰했을 때, 유화제를 첨가한 시스템과 pH가 산성을 띠는 시스템이 좋은 유화 안정성을 나타내고 있으며 유연성의 경우 유화제를 첨가한 아미도 아문이 더 좋은 유연성을 나타내었으며 이미자졸린이 아미도 아민보다 더 우수한 유연성을 나타내었다. 폼 안정성의 경우, 아미도 아민과 이미다졸린 모두 사급화제의 영향에 관계없이 유화제를 첨가한 시스템이 첨가하지 않은 시스템 보다 더 많은 기포를 생성하였다. 대전 방지성의 경우, 유화제를 첨가한 유화물 시스템이 첨가하지 않은 유화물 시스템보다 우수한 대전 효과를 나타내고 있으며, 폴리아민을 DETA을 사용한 시스템보다 AEEA를 사용한 시스템이 더 우수한 특성을 나타내고 있다. 섬유처리 시에 polyester 시험편으로 처리한 것이 월등한 대전 방지 효과를 나타내고 있다 Imidazolines were synthesized by reacting at 1-3 torr for 3hrs after preparing amidoamines through the reaction of amide at 150 ℃ using fatty acid and polyamines. The quartermization was carried out using amidoamines, imidazolines and quartemizing agent such as dimethyl sulfate (DMS), benzyl chloride (MBC) and sodium chloroacetate (SMCA). Emulsifying quarternaries were prepared in two types: emulsifier system and emulsifier free system. In the reaction systems using diethylenetriamine (DETA) and 1:1 reaction using 2-(2-Aminoethyl-amino)ethanol (AEEA), the amidoamines and imidazolines wre prepared. However, in 2:1 reaction using AEEA, no imidazolines were produced. The stability of quartemary was better with pH treatment and with the emulsifying system than the emulsifier free system and alkali system. In the flexble property of amidoamines improved with added emulsifier. Imidazolines showed a better flexible property than amidoamines. In general, the emulsifying system created more foam than the emulsifier free system. As for the antistatic property, polyamines used with AEEA system were better than that with DETA. Polyester type specimen for textile treatment showed a good antistatic property.

A novel synthesis of ditrimethylolpropane biphosphoramide diethyleneamine as flame retardant and antistatic textiles

Wei Jiang,Jin-Feng Li,Zi-Yuan Li,Xiao-Yan Zhang,Fan-Long Jin,박수진 한국화학공학회 2021 Korean Journal of Chemical Engineering Vol.38 No.4

A novel phosphorous- and nitrogen-containing flame retardant, ditrimethylolpropane biphosphoramide diethyleneamine (DBD), was synthesized. Its chemical structure is characterized by Fourier-transform infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy. The effect of DBD on the physical, mechanical, and antistatic properties, thermal stability, and flame retardancy of wool fabric was systematically investigated. Thermogravimetric analysis showed that the initial decomposition temperature of DBD was 165 oC and 243 oC under nitrogen and air atmosphere, respectively. Furthermore, after 30 washes, the treated wool fabric exhibited excellent wash durability and good antistatic properties. Vertical burning tests indicated that both the burning time and char length of the treated wool fabric were lower than those of the flame-retardant standard, leading to a B1 flame retardant rating for the treated wool fabric. Compared to untreated wool fabric, the limiting oxygen index value of treated wool fabric increased significantly from 25.7% to 34.7%.

아크릴우레탄 폴리머의 합성과 대전방지특성

홍경호 ( Kyung Ho Hong ),정노희 ( Noh Hee Jeong ) 한국유화학회 2009 한국응용과학기술학회지 Vol.26 No.1

Anti-Reflective/Antistatic/Low Reflection Film for Display Device

Hyuck Lee,Young-Ki Hong 한국EHS평가학회 2007 한국EHS평가학회지 Vol.5 No.2

Multiwalled carbon nanotubes and fluoroelastomer antistatic nanocomposite for automotive fuel system components

Kiryong Ha,Young Seok Lee,Seong Hwan Park,Jong Cheol Lee 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.3

Fluoroelastomer (FKM) composites, reinforced with multiwalled carbon nanotubes (MWNTs), were prepared by conventional method to determine the possibility of using MWNTs to develop an antistatic composite in automotive fuel systems. The results obtained from the composite containing 0-9 phr of MWNTs were compared. A 5 points increase in hardness was achieved with the addition of only 1 phr of MWNTs and 9 phr added FKM composite was increased 6.4MPa in tensile strength compared to the MWNTs unfilled FKM composite. In addition, electrical conductivity increased from 0 to 1.039 Scm−1 with increase in the MWNTs concentration, and the dynamic damping property was increased in the rubbery state region accordingly. These phenomena can be explained by the MWNTs networks formed in FKM matrix. This research will therefore be useful in the development of an antistatic rubber composite for fuel system components, which are deformed or vibrated while in operation.

보문: 공업화학(전기화학, 분석화학 포함)·촉매/반응공학·약물전달기술·기능성 코팅기술 ; 알카리 금속염으로부터 대전방지용 수분산 폴리우레탄 코팅용액 제조

홍민기 ( Min Gi Hong ),김병석 ( Byung Suk Kim ),이용운 ( Yong Yong Lee ),송기찬 ( Ki Chang Song ) 한국화학공학회 2012 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.50 No.3

Poly (carbonate diol)과 isophrone diisocyanate 그리고 dimethylol propionic acid로 부터 NCO/OH 몰 비를 0.8, 1.1, 1.3으로 각각 조절하여 수분산 폴리우레탄(waterborne polyurethane dispersion, PUD)을 합성하였다. 이 용액에 알카리 금속염인 LiClO4, NaClO4, KClO4를 첨가하여 대전방지용 수분산 폴리우레탄 코팅 용액을 제조하였다. 이 과정에서 첨가되는 알카리 금속염의 첨가량과 종류가 코팅 도막의 표면저항에 미치는 영향을 살펴보았다. 알카리 금속염의 첨 가량이 증가될수록 코팅 도막의 표면저항은 감소하였다. 그러나 PUD에 같은 양의 알카리 금속염이 첨가될 경우에는 LiClO4>NaClO4>KClO4의 순서로 코팅 도막의 이온 전도도가 우수함을 알 수 있었다. 또한 PUD 내의 NCO/OH 몰 비 가 증가함에 따라 코팅 도막의 표면저항이 증가하여 이온 전도도가 감소하였다. Waterborne polyurethane dispersions (PUD) were synthesized from poly (carbonate diol), isophrone diisocyanate and dimethylol propionic acid at different NCO/OH molar ratios. Subsequently, the PUD was mixed with different types of alkali metal salts (LiClO4, NaClO4, and KClO4) to prepare antistatic waterborne polyurethane coating solutions. Effects of the types and amounts of alkali metal salts were investigated on the surface resistances of the resulting coating films. The surface resistances of coating films were decreased with increasing the amounts of alkali metal salts added in the PUD. The coating films prepared with the same amount of alkali metal salts showed increased ionic conductivity with the order of LiClO4>NaClO4>KClO4. Also, the surface resistances of coating films were increased with increasing the molar ratios of NCO/OH in the PUD.

탄소재료 첨가에 의한 Polycarbonate의 기계적 물성 향상 및 기능화에 관한 연구

김정근,최선호,고선호,곽이구,강성수 한국기계가공학회 2020 한국기계가공학회지 Vol.19 No.10

Polycarbonate thermoplastic composite materials are anisotropic and exhibit physical properties in thelongitudinal direction. Therefore, the physical properties depend on the type and direction of reinforcements. The thermal conductivity, electrical conductivity, and resin impregnation can be controlled by adding carbonnanotubes to polycarbonate resin. However, the carbon fiber used as a reinforcing material is expensive,interfacial adhesion issues occur, and simulation values are different from actual values, making it difficult toperform mathematical analysis. However, carbon nanotubes have advantages such as light weight, rigidity,impact resistance, and reduced number of parts compared to metals. Due to these advantages, it has beenapplied to various products to reduce weight, improve corrosion resistance, and increase impact durability. Asthe content of carbon nanotubes or carbon fibers increases, the mechanical properties and antistatic andelectromagnetic shielding performance improve. It is expected that the amount of carbon nanotubes or carbonfibers can be optimized and applied to various industrial products.

Durable Hydrophilic Modification of Wool Scales with Reactive Surfactants in Saturated Neutral Salt System

Han Tian,Baojiang Liu,Xia Dong,Qiangqiang Zhao,Jinxin He 한국섬유공학회 2020 Fibers and polymers Vol.21 No.12

In this study, a new reactive surfactant was synthesized from cyanuric chloride and Jeffamine ED-600 or ED-2003,and then applied to the pre-reduced wool fabric in saturated neutral salt solution at low temperature. This treatment conditioninhibited the wool swelling, making the surfactant mainly covalently bond on the scales of wool. The structure of surfactantwas confirmed by 13C NMR, and the modified wool fabrics were characterized by FTIR-ATR, XPS, and SEM after carefullywashing with acetone and water. The wettability, liquid transport ability, antistatic and mechanical properties of the modifiedwool fabrics were also investigated. The results suggested that this modification method could significantly improve thehydrophilicity of wool surface, enhance the transport ability of liquid through the fabric and increase the antistatic propertiesof the fabric under low humidity conditions. Importantly, the modified fabric has robust washing fastness, with no seriousdamage to wool.

지방산 아마이드계 섬유용 유연제 합성과 물성에 대한 연구: part 1

임철환 ( Chul Hwan Lim ),김두원 ( Doo Won Kim ),노시태 ( Si Tae Noh ) 한국공업화학회 2003 공업화학 Vol.14 No.2

지방산과 폴리아민을 아마이드 반응에 의해 반응시켜 아마이드 결합을 가진 아미도 아민을 제조하였다. 이때 제조된 아미도 아민의 몰 비는 각각 1:1과 2:1이며 반응온도는 각각 150℃, 180℃, 200℃로 변화시켜 진행하였다. 이렇게 제조된 아미도 아민은 acetic acid (Ac)와 benzyl chloride(BC)를 사용하여 사급화를 진행하였다. 또한 사급화된 반응물을 유화시키기 위해 유화제와 Ac를 투입하여 사급화 유화물 아미도 아민을 제조하였다. 제조한 아미도 아민은 반응온도가 증가함에 따라 반응시간은 감소하나 부반응으로 이미다졸린이 생성됨을 관찰하였으며 sodium hypophosphite (SHPP)를 첨가함으로써 색의 변색을 방지할 수 있었다. 유화시킨 아미도 아민의 유화입경은 BC보다 Ac로 사급화하고 유화제를 첨가한 것이 더 작은 입경을 나타내었으며 유화제를 첨가한 유화물의 유연성이 더 뛰어난 것으로 관찰되었다. 또한 소수성의 증가로 인해서 mono-amid보다 di-amide의 경우가 폼 안전성이 감소하며 음 전하를 띠는 polyester 가 nylon보다 월등한 대전 방지성을 나타내었다. Amidoamines with amide group were synthesized by the reaction of fatty acid with polyamine. The mole ratio in preparing amidoamines was 1:1 and 2:1. The reaction temperature was set at three different temperatures; 150℃, 180℃ and 200℃. Quarternary amidoamines were synthesized by using acetic (Ac) and benzyl chloride (BC). Quartemary amidoamines were then emulsified by addition of emulsifier and Ac. The reaction time of synthesizing amidoamines was found to decrease with increasing the reaction temperature. However, imidazoline formed as the by-product with increased temperature. The color change of amidoamines was minimized by addition of SHPP. The particle sizes of quartemary amidoamines were smaller when Ac was used compared to the case of BE. Also, the emulsified quarternary amidoamines resulted in smaller particle sizes with better flexibility. Due to the increased hydrophobicity, the foam stability of diamide was poor compared to mono-amide. Polyester, which has negative charges, showed a better antistatic property than nylon.