<![CDATA[
<p><br></p><p><iframe id="v90ealtgpydFnSbxtygcljp@my" width="640" height="360" src="https://kakaotv.daum.net/embed/player/cliplink/v90ealtgpydFnSbxtygcljp@my?service=daum_cafe&ptoken=v2_d7f62b8a5537ad2aed7967787f8763fa81acc2c1ec9cf25609efd3d8e0b7a8871f0243d324194dff4ec183908bbd12cca0dba6fa4438475a329294354c" frameborder="0" scrolling="no" allowfullscreen></iframe></p><p>자동차정비관련 자및 종사자에게 질문하면 부동액 불이붙을까 안붙을까?</p><p><br></p><p>거의대다수가 안붙는다고 한다 헛소리 또라이짓이라고한다 </p><p>그원인은 기초과학 교육의오류 이기 때문이다 교과서책 말로만들어서 고정관념의 학습효과이다 </p><p><br></p><p>자동차정비철학가입장에서보면 부동액 에틸렌글리콜 불이붙는다. </p><p><br></p><p>에틸렌글리콜의발화점은 413도 라고한다 </p><p><br></p><p>자동차부동액 (사계절냉각수) 에틸렌글리콜이주성분이고 첨가물등이포함된다 </p><p><br></p><p>그자체는붙이안붙겠지만 사용시 보통 50:50 으로물과희석하여사용한다 </p><p><br></p><p>그러면 발화점이낮아진다.</p><p><br></p><p>왜불이붙나 실험하여본다 </p><p><br></p><p>국내부동액점유율이높은 유명제품으로실험해본다</p><p><br></p><p><br></p><p>준비물 </p><p>1.부동액 2.저울 3.용기 4.토치램프(가스) 5.온도계 6.안경 7.안전장구</p><p><br></p><p>어떤조건으로가열되어야한다 </p><p>2중용기로가열 </p><p><br></p><p>어는정도증발가열되면 불꽃점화로 불이붙는다</p><p><br></p><p>화염조심화상조심</p><p><br></p><p>이론보다 실험이중요한것같다 </p><p>온도계고장으로측정온도정확하지않으나 5년전실험에서는 섭씨282도정도인것같은데</p><p>정확한온도측정이안된다.오늘은 235도정도 밖에측정이안된다</p><p><br></p><p>위실험결과는개인의지적재산권이므로복사사진유포를금합니다</p><p><br></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/99BE943E5B712BF10D" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜 가열실험-1.jpg" id="A_99BE943E5B712BF10DF74A"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/998F1F3E5B712BF217" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-2.jpg" id="A_998F1F3E5B712BF217EFE6"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/997B8D3E5B712BF319" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-3.jpg" id="A_997B8D3E5B712BF31936E3"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/9972743E5B712BF31A" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-4.jpg" id="A_9972743E5B712BF31A168A"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/994EF93E5B712BF41F" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-5.jpg" id="A_994EF93E5B712BF41F759F"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/9955FA3E5B712BF51E" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-6.jpg" id="A_9955FA3E5B712BF51EB66B"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/99C93A3E5B712BF50B" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-7.jpg" id="A_99C93A3E5B712BF50BA276"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/99931C445B712BF612" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌그리콜가열실험-8.jpg" id="A_99931C445B712BF612B21C"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/99172A445B712BF74A" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-9.jpg" id="A_99172A445B712BF74A51D6"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/99752C445B712BF718" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-10.jpg" id="A_99752C445B712BF718BBD8"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/99A3D5445B712BF810" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-11.jpg" id="A_99A3D5445B712BF810E59A"/></p><p><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/99BD38445B712BF90C" class="txc-image" width="1024" style="clear: none; float: none;" border="0" vspace="1" hspace="1" actualwidth="1024" exif="{}" data-filename="에틸렌글리콜가열실험-12.jpg" id="A_99BD38445B712BF90C9390"/></p><p><br></p>
<!-- -->
]]>
카페 게시글
우리들의 이야기
부동액 (자동차냉각수)에틸렌글리콜 주성분 불이 붙는다?
정비철학가
추천 0
조회 217
18.08.13 15:59
댓글 0
다음검색
