心理辅导师:求英语高手帮忙翻译，化工方面材料

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TGA were also performed to compare the thermal stabilities of the cured epoxy resins; the results are also shown in Table IV. DOPO-A (0.58% P) exhibited higher char yield (31% in N2 at 700°C) and higher thermal stability than any TBBA containing resins studied. The result indicates that 0.58% P provided a char yield equivalent to that of 9.91% Br. Figure 5 shows the thermogravimetric traces of cured resins of Bis-A , DOPO-C, and TBBA-C in N2. The Bis-A resin exhibited 1% weight loss at 257°C and 10% weight loss at 367°C, and then a rapid weight loss at around 442°C in N2. TBBA-C exhibited 1% weight loss at 247°C and 10% weight loss at 267°C, and then a rapid weight loss at around 388°C. On the other hand, the phosphorus- containing DOPO-C showed 1% weight loss at 269°C and 10% weight loss at 387°C. If the thermal stability of cured epoxy resins were compared by 1% and 10% weight loss, the following order may be given: DOPO-C . TBBA-C . Bis-A. The rapid weight loss temperature (Tr) of Bis-A epoxy resin occurred at 442°C, slightly higher than that of DOPO-C; however, it is unlike the one-stage rapid weight loss of the Bis-A epoxy resin. DOPO-C exhibited a higher second-stage rapid weight loss at 587°C. This phenomenon played an important role in providing the flame retardancy to the cured epoxy resin, and was confirmed by the higher char yields at 600°C (DOPO-C 43%; TBBA-C 34%; Bis/Ph Nov 25%) and 700°C (DOPO-C 36%; TBBAC 29%; Bis-A 19%) for DOPO-C.
LOI and UL-94V Test for Flame-Retardant Epoxy Resin
Cured epoxy resin with high phosphorus content is expected to have a high char residue on pyrolysis. The char residue on pyrolysis is reported to be linearly proportional to the oxygen index for halogen-free polymers.27 The flame-retardant properties of cured epoxy resins with various phosphorus or bromine contents were examined by measuring their oxygen index (LOI). It is clear from the results of Table V that the higher the phosphorus content the higher the LOI value, which agrees well with previous reports.28,29
For the UL-94 test, five specimens of each cured epoxy resin were prepared and the test results are also shown in Table V. The flame retardancy of cured epoxy resins increases with phosphorus or bromine content in the cured products. Besides phosphorus being much more effective than bromine as a flame retardant (1.03% P is almost equivalent to 7.24% bromine by comparing DOPO-B with TBBA-B), it also generates much less visible smoke than the bromine-containing resin.

TGA 也被运行比较被治疗的环氧基树脂树脂的热安定；结果在表 4 中也被显示。 DOPO- 一 (0.58% P) 展现了比较高的零碎工作生产量 (31% 在 N2 中以 700个 ° C) 和比较高的热安定胜于任何的 TBBA 包含树脂有计划的。结果指出 0.58% P 9.91% Br 提供一个零碎工作生产量同等物给那。图 5 治疗的树脂 thermogravimetric 痕迹双一 ,DOPO-C, 和 N2 的 TBBA- C。双一个树脂以 257个 ° C 和 10%个减重以 367个 ° C 展现了 1%个减重, 然后在 N2 的 442个 ° C 左右的一个迅速的减重。 TBBA- C 以 247个 ° C 和 10%个减重以 267个 ° C 展现了 1%个减重, 然后在 388 ° C. 左右的一个迅速的减重另一方面,磷- 包含 DOPO- C 以 269个 ° C 和 10%个减重以 387 ° C. 了 1%个减重如果治疗的环氧基树脂树脂的热安定 1% 之前被比较和 10%个减重,下列各项次序可能被给: DOPO- C 。 TBBA- C 。双一个环氧基树脂树脂的迅速减重温度 (Tr) 以 442个 ° C 发生的双 A., 些微比较高比较那 DOPO-C;然而，它是不像那一个-阶段双一个环氧基树脂树脂的迅速减重。 DOPO- C 展现一比较高的第二-阶段迅速的减重在 587 ° C. 这一种现象在提供火焰 retardancy 给被治疗的环氧基树脂树脂方面扮演重要角色, 和是以 600个 ° C(DOPO- C 43%;TBBA- C 34%;Bis/Ph 十一月 25 日%) 和 700个 ° C(DOPO- C 36%;TBBAC 29%;双一 19%) 为 DOPO-C 藉着较高的零碎工作生产量确认。
LOI 和 UL-94 V 测试为火焰- Retardant 环氧基树脂树脂
用高的磷内容治疗环氧基树脂树脂被期望有在热分解上的一个高的零碎工作残渣。在热分解上的零碎工作残渣被线地成比例氧为无卤素聚合体编入索引中。27 和各种不同的磷或嗅内容的治疗环氧基树脂树脂的火焰- retardant 特性被藉由测量他们的氧索引调查。 (LOI) 它是清楚的从桌子 V 的结果那更高地磷使那更高地 LOI 价值满足, 以早先的 reports.28 同意得好,29
对于 UL-94 测试，治疗环氧基树脂树脂的每个五件样品被准备，而且测试结果在和磷或嗅内的内容被治疗的产品桌子 V. 治疗的环氧基树脂树脂增加的火焰 retardancy 也被显示。此外比嗅更加有效的磷存在如火焰 retardant(1.03% P 藉由把 DOPO- B 与 TBBA-B 作比较几乎对 7.24%个嗅是相等的) ，它也产生较加较不看得见的烟胜于包含嗅的树脂。

so difficult~

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