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: DPPD | Antioxidant H

Executive standard: Q/YTH001-2011
CAS NO. 74-31-7
English name: N, N-diphenyl-p-phenylenediamine
English abbreviation: DPPD
Chinese alias: N,N’-二苯基对苯二胺
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[FAQ]Does antioxidant DPPD emit an odor when heated?2021-01-19- 17:24: Q: Does the rubber antioxidant DPPD emit an odor when heated? Can it act as a harmful metal inhibitor?A: The initial melting point of rubber antioxidant DPPD is about 140C, and the melting point is about 220C. If the customer uses it at 200...; Read（0）

[FAQ]What effect will antioxidant DPPD have on rubber products?2021-01-19- 17:21: Q: The rubber antioxidant DPPD (S grade) has high metal content and strong hue. What kind of effect will it have on rubber products?A: It has an effect on the hue and aging resistance of rubber products.; Read（0）

[FAQ]When apply antioxidant DPPD to polyolefin heat shrinkable tubing2021-01-19- 17:15: Q: Is it possible to apply the rubber antioxidant DPPD (S grade) to polyolefin heat shrinkable tubing? What is the ratio of addition?A: The content of the relevant antioxidant is 0.5%-1.5% of the resin content, or about 1 part to 3 parts. I...; Read（0）

[FAQ]Can Rubber Antioxidant H act as a harmful metal inhibitor?2020-11-30- 10:39: Q: Rubber Antioxidant H, does it smell when heated? Can it act as a harmful metal inhibitor?A: Antioxidant H has a melting point of about 140C and a boiling point of about 220C. If the customer uses it at 200C, it will produce an obvious odor. The...; Read（0）

[FAQ]Rubber Antioxidant H, with high metal content and strong hue2020-11-30- 10:33: Q: Rubber Antioxidant H, with high metal content and strong hue, will it have any effect on rubber products?A: It has an influence on the hue and aging resistance of rubber products.; Read（0）

[FAQ]When apply rubber antioxidant to polyolefin heat shrinkable tubing2020-11-30- 10:29: Q: Is it possible to apply rubber antioxidant H to polyolefin heat shrinkable tubing? What is the ratio of addition?A: It is concluded that the content of the relevant antioxidant H is 0.5%-1.5% of the resin content, or about 1 part to 3 parts. It...; Read（0）

[Chemical Study]Why use antioxidants in rubber products？2020-09-23- 15:37: The vulcanization of rubber, whether natural or synthetic, requires the use of accelerators, sulfur donors and activators for different reasons: To optimize and control vulcanization, in order to improve the performance of finished products...; Read（0）

[Chemical Study]What are the classification of Oxidizing Agent?2017-03-03- 10:33: According to the material of the electronic ability strong or weak, it can be divided into weak strong oxidizer, moderate oxidant and antioxidant, with a general description of its performance in the REDOX reaction.However this category boundaries are fuzzy, sometimes with oxygen (O2 / H2O, E ? = 1.229 V [2]) and iron (Fe3 + / Fe2 +, E ? = 0.771 V [2]) is bounded, oxidizing than oxygen species as a strong oxidizer, weaker than iron ion for weak antioxidant, in between for moderate antioxidant.; Read（63）

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