• Title/Summary/Keyword: 인조피혁

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Preparation and Properties of Polyurethanes Containing Polycarbonate Polyol/Bio Polyol for Wet Type Artificial Leather (폴리카보네이트 폴리올/바이오 폴리올을 이용한 습식 인조피혁용 폴리우레탄의 제조 및 물성)

  • Sur, Suk-Hun;Ko, Jae-Wang;Choi, Pil-Jun;Lee, Jae-Yeon;Lee, Young-Hee;Kim, Han-Do
    • Clean Technology
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    • v.25 no.2
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    • pp.114-122
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    • 2019
  • The synthesis of bio polyol from renewable resources has attracted attention in recent years. In particular, it is important to take advantage of bio polyols in the synthesis of polymers. In this study, a series of dimethylformamide (DMF) based polyurethanes were synthesized using polycarbonate polyol/bio polyol (PO3G: polytrimethylene ether glycol prepared from 1, 3-propanediol produced by fermentation from corn sugar), methylene diphenyl diisocyanate (MDI) and 1,4-butandiol (BD). The properties of prepared polyurethane films and the cell structure of wet type artificial leather were investigated. As the bio polyol content increased, the tensile strength of polyurethane films decreased, however, the elongation at break increased significantly. As a result of thermal characteristics analysis, the glass transition temperature of polyurethanes increased when increasing the content of polycarbonate polyol. As a result of comparing the cell characteristics of wet type artificial leathers prepared in this study, it was found that the number and uniformity of cells formed in the artificial leather samples increased when increasing the content of polycarbonate polyol in polycarbonate polyol/bio polyol. From these results, it was found that DMF-based polyurethane containing an appropriate amount of bio polyol could be used for wet type artificial leather. The bio textile analysis system according to ASTM standard was used to measure the bio carbon content of polyurethane. The content of bio carbon increased proportionally with the increase of bio polyol content used in polyurethane synthesis.

An excellent ventilation and hydrolytic stability Eco-friendly artificial synthetic leather Using Thermoplastic Polyurethane Elastomer (TPU를 이용한 통기성 및 내가수분해성이 우수한 친환경 인조합성피혁에 개발)

  • U, Jong-Hyeong;Han, Dong-Su;Hong, Seong-Gon
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2008.10a
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    • pp.149-150
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    • 2008
  • 인체에 무해한 친환경 소재인 TPU수지를 인조합성피혁에 채용하여 기존에는 없던 통기성을 부여하였으며 PU 소재의 제품보다 내가수분해성이 뛰어나면서 기본물성이 우수한 고감성 인조합성 피혁 제품을 개발하였다.

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Preparation and Properties of DMF-Based Polyurethanes Containing Bio-Polyol/Ester-Polyol for Wet-Type Polyurethane Artificial Leather (습식 인조피혁용 바이오 폴리올/폴리에스터 폴리올을 함유한 DMF 기반 폴리우레탄의 제조 및 물성)

  • Sur, Suk-Hun;Choi, Pil-Jun;Ko, Jae-Wang;Park, Ji-Hyeon;Lee, Jae-Yeon;Lee, Young-Hee;Kim, Han-Do
    • Clean Technology
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    • v.25 no.1
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    • pp.7-13
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    • 2019
  • Recently, attention has been paid to obtaining bio-polyols from renewable resources. Successful use of these natural ingredients successfully produced in the industry for the synthesis of various polyurethanes is a very important task. In this study, a series of dimethylformamide (DMF) based polyurethanes were synthesized from methylene diphenyl diisocyanate (MDI)/1, 4-butanediol and bio-polyol (polytrimethylene ether glycol based on 1, 3-propanediol : B-POL)/polyester polyol (polyadipate diol based on 1,4-butandiol : H-PET). The effect of different ratio of bio-polyol (B-POL)/polyester polyol (H-PET) on the physical properties of polyurethane was investigated. As the B-POL content in B-POL/H-PET mixture increased, the glass transition of soft segment (Tgs) and tensile strength of polyurethane decreased, however, the elongation at break and tear strength increased. On the other hand, artificial leather was produced by wet process using synthesized DMF-based polyurethanes. It was found that there was almost no difference in the effect of the B-POL/H-PET composition on the average size and density (the number of cells per unit volume) of the porous cells formed in artificial leather. These results show that there is no problem in using bio-polyol (B-POL) based polyurethane for artificial leather produced by wet process.

The Sense of Touch and Preference of Man-made Leather -Subjective Evaluation- (인조피혁의 촉감 및 선호도 -주관적 평가-)

  • 신혜원;이정순
    • Journal of the Korean Society of Clothing and Textiles
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    • v.23 no.4
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    • pp.541-550
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    • 1999
  • The purpose of this study is to find out the factors that explain the sense of touch and preference of man-made leather. Date base of descriptors for man-made leather was collected by interviewing 50 consumers, 33 different kinds of commercial man-made leathers(synthetic leather and artificial leather) were assessed subjectively by 605 consumers using the 9-point scale of 34 pairs of bipolar descriptors based on the data base. Subjective ratings were analyzed by principal axis factoring with varimax rota-tion. The sense of touch of man-made leather is explained by five factors ; surface property stretchiness thickness& weight thermal property(warmth & coolness) and moisture property (sticky & clingy). The difference in the sense of touch of man-made leathers is mainly attributable to surface property and stretchiness. And the preference of man-made leathers is mainly attributable to surface property and stretchiness. And the preference of man-made leather is explained by three factors ; surface property stretchiness and quality. Higher preference is found in man-mad leather of better quality touch and softness.

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The Sense of Touch of Man-made Leather (인조피혁의 촉감평가)

  • 이정순;신혜원
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.2
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    • pp.277-285
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    • 2000
  • The purpose of this study was to quantify the relationship between the sense of touch and mechanical properties of man-made leather. The first was to develop the five conversion equations which convert mechanical properties of man-made leather into five factor scores, which express five factors of the sense of touch(surface property, stretchiness, thickness & weight, thermal property(warmth & coolness), and moisture property(sticky & clingy)). The second was to develop the conversion equation which converts five factor scores into score of the sense of touch. Five factor scores were predicted by the following mechanical properties; surface property factor by log2HB and (log2HB)2, stretchiness factor by logEM, thickness & weight factor by logT, log2HB, logW, thermal property factor by logT, logHB, logSMd, and moisture property factor by logMMD, RC, RC2, (logEM)2, RT2. Subsequently, these five factor scores were converted into score of the sense of touch. The predictive abilities of the developed equations were satisfied.

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Impacts of Ethical Consumption Beliefs on Attitudes toward Eco-Friendly Faux Leather Apparel Products and Mediating Roles of Perceived Consumer Effectiveness and Apparel Environmental Knowledge (윤리소비신념이 친환경 인조피혁 의류제품 태도에 미치는 영향과 지각된 소비자 효율 및 의류환경지식의 매개효과)

  • Jung, Hye Jung;Oh, Kyung Wha
    • Journal of the Korean Society of Clothing and Textiles
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    • v.37 no.2
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    • pp.125-137
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    • 2013
  • This study investigated the conceptual constructs of ethical consumption beliefs and their impacts on the consumer attitudes toward eco-friendly faux leather apparel goods. The mediating roles of perceived consumer effectiveness and apparel environmental knowledge were examined in this research. A survey was conducted on female consumers between the ages of 20 and 50; subsequently, 300 responses were analyzed. The results of this study were follows: 1) The results of factor analysis and the reliability test on ethical consumption beliefs clearly showed factorial structures that include Social Responsibility, Eco-friendly Consumption, Animal Welfare, and Individual Enhancement. 2) The results of the mean scores of ethical consumption beliefs showed that respondents tended to consider Social Responsibility more important than the other three factors. Ethical consumption beliefs showed a significantly positive influence on consumer attitudes toward eco-friendly faux leather apparel products; in addition, Social Responsibility had the highest effect on product attitudes among the four factors of ethical consumption beliefs. 3) The perceived consumer effectiveness and environmental knowledge of apparel had important medicating roles in the relation-ship between ethical consumption beliefs and attitudes towards eco-friendly faux leather apparel products. This study highlighted a potential marketability of eco-friendly faux leather apparel products and that ethical consumption beliefs, perceived consumer effectiveness, and apparel environmental knowledge should be promoted among consumers to increase favorable attitudes towards these products.