SCOPUS
KCI등재
폴리프로필렌사칩과 배향사(配向絲)를 결재한 톱밥보드의 물리적 및 기술적 성질에 관한 연구 = A Study on Physical and Mechanical Properties of Sawdustboards combined with Polyperopylene Chip and Oriented Thread
저자
발행기관
학술지명
권호사항
발행연도
1988
작성언어
Korean
KDC
584.000
등재정보
SCOPUS,KCI등재
자료형태
학술저널
발행기관 URL
수록면
1-41(41쪽)
제공처
소장기관
For the purpose of utilizing the sawdust having poor combining properties as board raw material and resulting in dimensional instability of board, polypropylene chip (abbreviated below as PP chip) or oriented PP thread was combined with sawdust particle from white meranti (Shores sp.). The PP chip was prepared from PP thread in length of 0.25, 0.5, 1.0 and 1.5 ㎝ for conventional blending application. Thereafter, the PP chip cut as above was combined with the sawdust particle by 3, 6, 9, 12 and 15% on the weight basis of board. Oriented PP threads were aligned with spacing of 0.5, 1.0 and 1.5㎝ along transverse direction of board.
The physical and mechanical properties on one, two and three layer boards manufactured with the above combining conditions were investigated.
The conclusions obtained at this study were summarized as follows:
1. In thickness swelling, all one layer boards combined with PP chips showed lower values than control sawdustboard, and gradually clear decreasing tendendy with the increase of PP chip composition.
Two layer board showed higher swelling value than one layer board, but the majority of boards lower values than control sawdustboard. All three layer boards showed lower swelling values than control sawdustboard.
2. In the PP chip and oriented thread combining board, the swelling values of boards combining 0.5㎝ spacing oriented thread with 1.0 or 1.5㎝ long PP chip in 12 and 15% by board weight were much lower than the lowest of one or three layer.
3. In specific gravity of 0.51, modules of rupture of one layer board combined with 3% PP chip showed higher value than control sawdustboard. However, moduli of rupture of the boards with every PP chip composition did not exceed 80kgf/㎠, the low limit value of type 100 board, Korean Industrial Standard KS F 3104 Particleboards.
Moduli of rupture of 6%, 1.5㎝-long and 3% PP chip combined boards in specific gravity of 0.63 as well as PP chip combined board in specific gravity of 0.72 exceeded 80kgf/㎠ on KS F 3104.
Two layer boards combined with every PP chip composition shoewed lower values than control sawdustboard and one layer board. Three layer boards combined with 1.5㎝ lung PP chip in 3, 6 and 9% combination level showed higher values than control sawdustboare, and exceeded 80kgf/㎠ an KS F 3104.
4. In modules of rupture of PP thread oriented sawdustboard, 0.5㎝ spacing oriented board showed the highest value, and 1.0 and 1.5㎝ spacing oriented boards lower values than the 0.5㎝. However, all PP thread oriented sawdustboards showed higher values than control sawdustboard.
5. Moduli of rupture in the majority of PP chip and oriented thread combining boards were higher than 80kgf/em2 on KS F 3104.
Moduli of rupture in the boards combining longer PP chip with narrower 0.5㎝ spacing oriented thread showed high values.
In accordance with the spacing increase of oriented thread, moduli of rupture in the PP chip and oriented thread combining boards showed increasing tendency compared with oriented sawdustboard.
6. Moduli of elasticity in one, two and three layer boards were lower than those of control sawdustboard, however, moduli of elasticity of oriented sawdustboards with 0.5, 1.0 and 1.5㎝ spacing increased 20, 18 and 10% compared with control sawdustboard, respectively.
7. Moduli of elasticity in the majority of PP chip and oriented thread combining boards in 0.5, 1.0 and 1.5㎝ oriented spacing showed much higher values than control sawdustboard.
On the whale, moduli of elasticity in the oriented boards combined with 9% or less combination level and 0.5㎝ or more length of PP chip showed higher values than oriented sawdustboard. The increasing effect on moduli of elasticity was shown by the PP chip composition in oriented board with narrow spacing.
8. Internal bond strengths of all one layer PP chip combined boards showed lower values than control sawdustboare, however, the PP chip combined boards in specific gravity of 0.63 and 0.72 exceeded 1.5kgf/㎠, the low Limit value of type 100 hoard and 3kgf/㎠, type 200 board on KS F 3104, respectively.
And also most of all two, three layer-and oriented boards exceeded 3kgf/㎠ on KS F.
9. In general, screw holding strength of one layer board combined with. PP chip showed lower value than control sawdustboard, however, that of two or three layer board combined with PP chip did no decreased tendency, and even screw holding strength with the increase of PP chip composition. In the PP chip and oriented FP thread combining boards, most of the boards showed higher values than control sawdustbaard in 9% or Less PP chip composition.
서지정보 내보내기(Export)
닫기소장기관 정보
닫기권호소장정보
닫기오류접수
닫기오류 접수 확인
닫기음성서비스 신청
닫기음성서비스 신청 확인
닫기이용약관
닫기학술연구정보서비스 이용약관 (2017년 1월 1일 ~ 현재 적용)
학술연구정보서비스(이하 RISS)는 정보주체의 자유와 권리 보호를 위해 「개인정보 보호법」 및 관계 법령이 정한 바를 준수하여, 적법하게 개인정보를 처리하고 안전하게 관리하고 있습니다. 이에 「개인정보 보호법」 제30조에 따라 정보주체에게 개인정보 처리에 관한 절차 및 기준을 안내하고, 이와 관련한 고충을 신속하고 원활하게 처리할 수 있도록 하기 위하여 다음과 같이 개인정보 처리방침을 수립·공개합니다.
주요 개인정보 처리 표시(라벨링)
목 차
3년
또는 회원탈퇴시까지5년
(「전자상거래 등에서의 소비자보호에 관한3년
(「전자상거래 등에서의 소비자보호에 관한2년
이상(개인정보보호위원회 : 개인정보의 안전성 확보조치 기준)개인정보파일의 명칭 | 운영근거 / 처리목적 | 개인정보파일에 기록되는 개인정보의 항목 | 보유기간 | |
---|---|---|---|---|
학술연구정보서비스 이용자 가입정보 파일 | 한국교육학술정보원법 | 필수 | ID, 비밀번호, 성명, 생년월일, 신분(직업구분), 이메일, 소속분야, 웹진메일 수신동의 여부 | 3년 또는 탈퇴시 |
선택 | 소속기관명, 소속도서관명, 학과/부서명, 학번/직원번호, 휴대전화, 주소 |
구분 | 담당자 | 연락처 |
---|---|---|
KERIS 개인정보 보호책임자 | 정보보호본부 김태우 | - 이메일 : lsy@keris.or.kr - 전화번호 : 053-714-0439 - 팩스번호 : 053-714-0195 |
KERIS 개인정보 보호담당자 | 개인정보보호부 이상엽 | |
RISS 개인정보 보호책임자 | 대학학술본부 장금연 | - 이메일 : giltizen@keris.or.kr - 전화번호 : 053-714-0149 - 팩스번호 : 053-714-0194 |
RISS 개인정보 보호담당자 | 학술진흥부 길원진 |
자동로그아웃 안내
닫기인증오류 안내
닫기귀하께서는 휴면계정 전환 후 1년동안 회원정보 수집 및 이용에 대한
재동의를 하지 않으신 관계로 개인정보가 삭제되었습니다.
(참조 : RISS 이용약관 및 개인정보처리방침)
신규회원으로 가입하여 이용 부탁 드리며, 추가 문의는 고객센터로 연락 바랍니다.
- 기존 아이디 재사용 불가
휴면계정 안내
RISS는 [표준개인정보 보호지침]에 따라 2년을 주기로 개인정보 수집·이용에 관하여 (재)동의를 받고 있으며, (재)동의를 하지 않을 경우, 휴면계정으로 전환됩니다.
(※ 휴면계정은 원문이용 및 복사/대출 서비스를 이용할 수 없습니다.)
휴면계정으로 전환된 후 1년간 회원정보 수집·이용에 대한 재동의를 하지 않을 경우, RISS에서 자동탈퇴 및 개인정보가 삭제처리 됩니다.
고객센터 1599-3122
ARS번호+1번(회원가입 및 정보수정)