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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]Oxidizing Agent is mainly used for what areas?2017-03-03- 10:37: Commonly used in metallurgical oxidant to remove impurities and purification of the melting metal, such as those used in steelmaking process oxidant have iron ore, iron, phosphorus, air or industrial pure oxygen etc.Commonly used in the chemical battery, oxidant to remove the positive on the release of oxygen, known as the "remover", such as the manganese dioxide used in dry cells.; Read（35）

[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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