間苯撐雙馬來(lái)酰亞胺(PDM或HVA-2)
發(fā)布時(shí)間：2023-07-09 21:34:35點(diǎn)擊:1269
一、簡(jiǎn)介
中文名稱(chēng)：N,N’-間苯撐雙馬來(lái)酰亞胺 英文名稱(chēng)：N,N’-m-phenylene dimaleimide
簡(jiǎn) 稱(chēng)：PDM或HVA-2 分子式：C14H8N2O4 分子量：268
物化性質(zhì)：黃色或棕黃色粉末，比重1.44，可溶于二氧陸環(huán)、四氫呋喃和熱的丙酮中，不溶于石油鍵、二氯甲烷、四氯化碳、苯和水中。
CAS NO：3006-93-7
結 構 式：
二、技術(shù)指標
項 目 | 指 標 |
外 觀(guān) | 黃色粉末 |
含 量 | ≥99% |
熔點(diǎn)，℃ | ≥195℃ |
灼燒殘渣，% | ≤0.5% |
加熱減量，% | ≤0.3% |
酸值，% | ≤0.9% |
篩余物，325目 | ≤0.5% |
三、用途
N,Nˊ‐間苯撐雙馬來(lái)酰亞胺（也叫PDM或HVA-2），為多功能橡膠助劑，在橡膠加工過(guò)程中既可作硫化劑，也可以作過(guò)氧化物體系的助硫化劑，還可作為防焦劑和增粘劑，既適用于通用橡膠，也適用于特種橡膠和橡塑并用體系。
在天然膠中，與硫磺配合，能防止硫化返原，改善耐熱性，降低生熱，耐老化，提高橡膠與簾子線(xiàn)粘合力和硫化膠模量。用于載重輪胎肩膠、緩沖層等橡膠中，可解決斜交載重輪胎肩空難題，也可用于天然橡膠的大規格厚制品及各種橡膠雜品。
在氯丁橡膠、氯磺化聚乙烯橡膠、丁苯橡膠、丁腈橡膠、異戊二烯橡膠、丁基橡膠、溴化丁基橡膠、丙烯酸酯橡膠、硅橡膠和橡塑并用膠等特種橡膠中，作為輔助硫化劑，能顯著(zhù)改善交聯(lián)性能，提高耐熱性，適用于高溫硫化體系，降低壓縮永久變形十分明顯，還能減少過(guò)氧化物的用量，防止膠料在加工過(guò)程中的焦燒，提高膠料和簾子線(xiàn)及金屬的粘合強度。
PDM屬無(wú)硫硫化劑，用于電纜橡膠，它可代替噻唑類(lèi)、秋蘭姆類(lèi)等所有含硫硫化劑，解決了銅導線(xiàn)和銅電器因接觸含硫硫化劑生成硫化銅污染發(fā)黑的難題。
四、包裝
標準包裝是紙塑復合袋，凈重10KG或20KG或按客戶(hù)要求包裝.
貯存：在陰涼干燥處可存儲兩年.
Product Introduction
PDM / HVA-2 / BMI-08 Applications
HHSM:BISMALEIMIDE[PDM / HVA-2 /BMI-08]
N,Nˊ‐間苯撐雙馬來(lái)酰亞胺
HHSM:BISMALEIMIDE [PDM / HVA-2 /BMI-08]
1. Introduction
CHEMICAL Name: N.N′-m-phenylene dimaleimide
Abbreviation: PDM or HVA-2 BMI-08
Molecular Formula:C14H8N2O4 Molecular weight:268.22 CAS NO:3006-93-7
Structure Formula:
Physical and Chemical Feature:Yellow or brown yellow powder ,proportion: 1.44,it is dioxyide Lu Wan, , Fourth hydrogen Furan and hot acetone soluble,petroleum, dichloromethane, Fourth carbon chloride, benzene and water soluble.
2. Technology Index
Iterms | index |
appearance, | yellow powder |
melting point，℃ | ≥195℃ |
Burning residue，% | ≤0.5% |
the heating loss，% | ≤0.5% |
acid value | 1.0 mgKOH/g |
Screenings，325目 | ≤0.5% |
3.Use
Also called PDM or HVA - 2/bmi-08, multi-functional rubber additives, can be used in the process of rubber processing as vulcanizing agent, also can make peroxide system helps the vulcanizing agent, also can make antiscorching agent and tackifier, applies to general-purpose rubber, also applies to special rubber and rubber and system.
Cooperate with sulfur in natural rubber, can prevent sulfide to return the original and improved heat resistance, reduce the heat generated, ageing resistance.
Improve rubber and cord adhesion force and sulfide film.
Used in truck tire shoulder gum, rubber cushion layer.
Can solve the problem of oblique load tire shoulder empty.
Can also be used for large size thick products of natural rubber.
In chloroprene rubber, chlorosulfonated polyethylene rubber, styrene-butadiene rubber, nitrile rubber, isoprene rubber, butyl rubber brominated butyl rubber, acrylate rubber, silicone rubber and rubber and rubber and other special rubber, as auxiliary vulcanizing agent, crosslinking performance can be improved significantly, improve the heat resistance, is suitable for the high temperature fluidization system.
Reduce the compression permanent deformation is very obvious.
Also can reduce the dosage of peroxide, can prevent the rubber scorch in the process, improve and rubber tire cord and metal bonding strength
Dosage It can be used as anti-scorcher agent 0.5~1.0,as curiing agent 2~3,and improver agent 1.5,binder improver agent 0.5~5.0.
4.Packaging
10kg or 20kg(net weight),kraft bag inner PE coated or packaging according to customer's request.
5. Storage
This material can be stable for 24 months under the normal storage conditions.However,precautions must be taken to avoid exposure to sunlight and always ,store this material in a sealed container under the dry and cool conditions.
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