 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 5 | 1/1 | 返回列表 |
| 查看: 1291 | 回復: 5 | |||
| 本帖產(chǎn)生 1 個 翻譯EPI ，點擊這里進行查看 | |||
| 當前只顯示滿足指定條件的回帖，點擊這里查看本話題的所有回帖 | |||
[求助]
求達人潤色一段英文摘要
|
|||
| 求達人潤色一段摘要:摘要：本文對兩種常用防毒面具罩體材料的性能進行了表征。結(jié)果表明：在目前的生產(chǎn)配方及硫化條件下，NR罩體材料的拉伸強度為22.0MPa、撕破強力為41.3KN∙m-1，高于CIIR罩體材料的13.2MPa和35.5KN∙m-1，NR罩體具有較高力學性能的原因在于其能夠產(chǎn)生應變誘導結(jié)晶；NR罩體和CIIR罩體材料的回彈率分別為60%和16%，芥子氣在兩種罩體中的擴散系數(shù)分別為6.85×10-13m2/s和2.10×10-11m2/s，CIIR罩體材料較低的回彈率和優(yōu)良的阻隔性能均與分子結(jié)構(gòu)中占優(yōu)的異丁烯鏈節(jié)上密集的側(cè)甲基有關(guān)；NR罩體和CIIR罩體材料的Tg分別為-55oC和-36oC，說明NR罩體具有較好的低溫使用性能，較大內(nèi)摩擦損耗所導致的分子鏈運動能力減弱是CIIR罩體材料Tg較高的主要原因。This paper presents properties of faceblanks for two commonly used respirators based on NR and CIIR. The results show that under the existing practrical formula and curing conditions, NR faceblank offers tensile strength of 22.0MPa and tear force of 41.3KN∙m-1, higher than those offered by CIIR faceblank which are 13.2MPa and 35.5KN∙m-1, the mechanical superiority of NR faceblank is mainly derived from the strain-induced cyrstallization. Resiliences of NR and CIIR faceblanks are 60% and 16%, and diffusion coefficients of sulphur mustard in the two faceblanks are 2.10×10-11m2/s and 6.85×10-13m2/s, respectively. Low resilience and excellent barrier property of CIIR faceblank are due to the dense side methyl groups in the predominant isobutylene units. The Tg values for the NR and CIIR faceblank are -55oC and-36oC, suggesting the NR faceblank having a fairly good performance than the CIIR faceblank in cold weather. The weak chain segment motion ability originated from great internal friction is responsible for the high Tg value for CIIR faceblank. |
回復此樓» 猜你喜歡
317分 一志愿南理工材料工程 本科湖工大 求調(diào)劑
已經(jīng)有11人回復
-
332求調(diào)劑
已經(jīng)有12人回復
-
材料專碩 085600求調(diào)劑
已經(jīng)有5人回復
-
0703化學/290求調(diào)劑/本科經(jīng)歷豐富/工科也可
已經(jīng)有14人回復
-
283求調(diào)劑（080500）
已經(jīng)有14人回復
-
材料工程專碩求調(diào)劑
已經(jīng)有6人回復
-
材料專碩調(diào)劑
已經(jīng)有9人回復
-
求調(diào)劑 有機化學考研356分
已經(jīng)有11人回復
-
環(huán)境科學與工程334分求調(diào)劑
已經(jīng)有8人回復
-
考研調(diào)劑
已經(jīng)有5人回復
明子眸
銅蟲 (小有名氣)
- 翻譯EPI: 6
- 應助: 1 (幼兒園)
- 金幣: 1645.2
- 散金: 20
- 紅花: 1
- 帖子: 231
- 在線: 186.1小時
- 蟲號: 1373489
- 注冊: 2011-08-20
- 性別: GG
- 專業(yè): 光學和光電子材料
【答案】應助回帖
★ ★ ★ ★ ★ ★
xpz-wdy: 金幣+6, 翻譯EPI+1, ★有幫助 2015-12-15 19:49:25
xpz-wdy: 金幣+6, 翻譯EPI+1, ★有幫助 2015-12-15 19:49:25
|
表征的手段已經(jīng)過去了，用一般過去時。而實驗結(jié)果用一般現(xiàn)在時態(tài)。我刪掉了一些多余的東西，所以整句話應該這樣來翻譯。 Abstract: In this paper, the properties of two face-pieces materials for respirators were respectively characterized (你的這句話只講了一半，所以這里再加上一句，被什么儀器、什么檢測手段或者什么方法所表征). Results show that the tensile and tearing strength of NR respirators are 22.0 MPa and 41.3 KN∙m-1 independently under the currently production condition, which is better than that of CIIR respirators because of the strain induced crystallization. Due to the congested methyl on the link of isobutene, the rebound ratio and diffusion coefficient of the CIIR is lower than that of the NR. Importantly, the Tg of the NR is lower to -55oC than that of the CIIR (-36oC), which indicates that NR face-pieces materials has an excellent performance in lower temperature. Moreover, the motion ability of molecular chain is weakened by large wastage of internal friction, which is major cause for high Tg value of CIIR respirators. |
3樓2015-12-15 13:58:37
2樓2015-12-14 19:51:14
4樓2015-12-15 19:54:26
mac194
鐵蟲 (職業(yè)作家)
- 翻譯EPI: 61
- 應助: 128 (高中生)
- 金幣: 21401.3
- 紅花: 101
- 帖子: 3332
- 在線: 3370.2小時
- 蟲號: 2488597
- 注冊: 2013-05-30
- 專業(yè): 高分子材料的加工與成型
5樓2015-12-17 12:54:59
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[有機交流] 考研調(diào)劑 +5 | watb 2026-03-26 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 310求調(diào)劑 +9 | 爭取九點睡 2026-03-30 | 9/450 |
|
|
|
[考研] 化學308分調(diào)劑 +7 | 你好明天你好 2026-03-30 | 7/350 |
|
|
|
[考研] 318求調(diào)劑 +7 | 陳晨79 2026-03-30 | 7/350 |
|
|
|
[考研] 309求調(diào)劑 +10 | 誰不是少年 2026-03-29 | 10/500 |
|
|
|
[考研] 085404求調(diào)劑，總分309，本科經(jīng)歷較為豐富 +6 | 來財aa 2026-03-25 | 6/300 |
|
|
|
[考研] 295求調(diào)劑 +5 | wei-5 2026-03-26 | 5/250 |
|
|
|
[考研] 329求調(diào)劑 +10 | 鈕恩雪 2026-03-25 | 10/500 |
|
|
|
[考研] 340求調(diào)劑 +6 | Amber00 2026-03-26 | 6/300 |
|
|
|
[考研] 材料學碩333求調(diào)劑 +11 | 北道巷 2026-03-24 | 11/550 |
|
|
|
[碩博家園] 招收生物學/細胞生物學調(diào)劑 +4 | IceGuo 2026-03-26 | 5/250 |
|
|
|
[考研] 生物學學碩，一志愿湖南大學，初試成績338 +6 | YYYYYNNNNN 2026-03-26 | 7/350 |
|
|
|
[考研] 320分，材料與化工專業(yè)，求調(diào)劑 +9 | 一定上岸aaa 2026-03-27 | 13/650 |
|
|
|
[考研] 085701環(huán)境工程，267求調(diào)劑 +16 | minht 2026-03-26 | 16/800 |
|
|
|
[考研] 279 分 求調(diào)劑 +4 | 睡個好覺_16 2026-03-24 | 4/200 |
|
|
|
[考研] 求調(diào)劑 +3 | 劉柯@ 2026-03-24 | 4/200 |
|
|
|
[考研] 材料調(diào)劑 +8 | 匹克i 2026-03-23 | 8/400 |
|
|
|
[考研] 機械學碩310分，數(shù)一英一，一志愿211本科雙非找調(diào)劑信息 +3 | @357 2026-03-25 | 3/150 |
|
|
|
[考研] 300分，材料，求調(diào)劑，英一數(shù)二 +5 | 超贊的 2026-03-24 | 5/250 |
|
|
|
[考研] 269求調(diào)劑 +4 | 我想讀研11 2026-03-23 | 4/200 |
|