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交联剂TAIC(精品级)

价格:53.00元/千克
品牌:翰波化工
外观:透明液体 
熔点:24-26 
纯度:≥98% 
起订:25 千克 
供货总量:5000 千克 
发货期限:自买家付款之日起 3 天内发货
有效期至:长期有效
更新日期:2021-03-11
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详细说明

交联剂TAIC

在过氧化物硫化体系中,加入助交联剂TACTAIC会使硫化的焦烧时间略为延迟,随着硫化时间的延长,助交联剂出现明显的促进交联效应。可能因为在硫化反应的初期阶段,助交联剂分子自身发生环化聚合,并与橡胶分子接枝而消耗部分橡胶分子自由基,此些自由基在无助交联剂时本应产生正常的化学交联。随着硫化时间的延长,烯丙基的双键与橡胶发生交联反应占主导地位,形成活性剂桥键,从而提高了交联效率。TACTAIC硫化效果的差别取决于分子活性有所不同,由于结构相似,对硫化影响差别并不明显。

用途:

1. 多种热塑塑料(聚乙烯、聚氯乙烯、氯化聚乙烯、EVA、聚苯乙烯等)的交联改性剂。热交联一般添加量为1-3%,另加过氧化二异丙苯DCP)为O.2-1%;辐照交联添加量为0.5-2%,可不再加DCP。交联后可显著提高制品的耐热性、阻燃性、耐溶剂性、机械强度及电性能等。它比单独采用过氧化物体系交联,要显著地提高产品质量,且无异味。典型用于聚乙烯,聚乙烯/氯化聚乙烯、聚乙烯/EVA、交联电缆和聚乙烯高、低发泡制品。

2. 乙丙橡胶、各种氟橡胶、CPE等特种橡胶的助硫化剂(与DCP并用,一般用量为0.5-4%),可显著地缩短硫化时间、提高强度、耐磨性、耐溶性、耐腐蚀性。

3. 丙烯酸、苯乙烯型离子交换树脂的交联剂,它比二乙烯苯交联剂用量少、质量高,可制备抗污染、强度大、大孔劲、耐热、耐酸碱、抗氧化等性能##的离子交换树酯。这是国内外新近开发的,前景极好的新型离子交换树酯。

4. 聚丙烯酸酯、聚烷基丙烯酸酯等改性剂,可显著地提高耐热性、光学性能和工艺加工性能等。典型用于普通有机玻璃的耐热改性。

5. 环氧树酯PDAP(聚苯二甲酸二烯丙酯)树酯的改性剂,可提高耐热性、粘合性、机械强度和尺寸稳定性,典型用于环氧灌封料包封料的改性。

6. 不饱和聚酯和热塑聚酯的交联剂和改性剂,可显著提高耐热性、抗化学腐蚀性、尺寸稳定性、耐候性和机械性能等。典型用于提高热压型不饱和聚酯玻璃钢制品耐热性,改性后的制品使用温度可达到180℃以上。

7. TAIC本身的均聚物一聚三烯丙基异三聚氰酸酯为一种透明、硬质、耐热、电绝缘优良的树脂、亦可用于粘合玻璃及陶瓷等。典型用于制造多层安全玻璃。

8. 聚苯乙烯的内增塑剂、苯乙烯与TAIC等共聚改性,可制得透明的、耐碎的制品。

9. 金属耐热、抗辐射、耐候性的保护剂,TAIC预聚物在金属表面进行烤镀,其烤镀膜具有十分优良的耐热、耐辐射、耐候性和电绝缘性。典型用于制造微电子产品的印刷线路板等绝缘材料。

10. 光固化涂料、光致抗蚀剂、阻燃剂和阻燃交联剂等到的中间体。典型用于合成高效阻燃剂TBC和阻碍燃交联剂DABC

Crosslinking agent TAIC

In the peroxide vulcanization system, the addition of cross-linking agent TAC or TAIC will slightly delay the scorch time of vulcanization. With the extension of the vulcanization time, the cross-linking agent will obviously promote the cross-linking effect. It may be because in the early stage of the vulcanization reaction, the cross-linking agent molecules themselves undergo cyclization polymerization, and are grafted with rubber molecules to consume part of the rubber molecule free radicals. These free radicals should produce normal without cross-linking agent. Chemical cross-linking. With the extension of the vulcanization time, the crosslinking reaction between the double bond of the allyl group and the rubber dominates, forming an active agent bridge, thereby improving the crosslinking efficiency. The difference between the vulcanization effect of TAC and TAIC depends on the difference in molecular activity. Due to the similar structure, the difference in vulcanization effect is not obvious.

Usage:

1. Crosslinking modifier for various thermoplastics (polyethylene, polyvinyl chloride, chlorinated polyethylene, EVA, polystyrene, etc.). The amount of thermal crosslinking is generally 1-3%, and the addition of dicumyl peroxide (DCP) is O.2-1%; the amount of radiation crosslinking is 0.5-2%, and DCP can be no longer added. After cross-linking, it can significantly improve the heat resistance, flame retardancy, solvent resistance, mechanical strength and electrical properties of the product. Compared with the peroxide system alone, it has a significant improvement in product quality and no odor. Typical applications are polyethylene, polyethylene / chlorinated polyethylene, polyethylene / EVA, cross-linked cables, and polyethylene high and low foam products.

2. Ethylene propylene rubber, various fluororubbers, CPE and other special rubber vulcanization aids (combined with DCP, the general dosage is 0.5-4%), can significantly shorten the vulcanization time, improve strength, wear resistance, solvent resistance, Corrosion resistance.

3. Crosslinking agent of acrylic acid and styrene type ion exchange resin. It has less dosage and higher quality than divinylbenzene crosslinking agent. Ion exchange resin with excellent performance such as oxidation. This is a new type of ion exchange resin newly developed at home and abroad with excellent prospects.

4. Modifiers such as polyacrylate, polyalkyl acrylate, etc., can significantly improve heat resistance, optical performance and processability. Typically used for heat-resistant modification of ordinary plexiglass.

5. Modifier of epoxy resin and DAP (polyallyl phthalate) resin, which can improve heat resistance, adhesion, mechanical strength and dimensional stability. It is typically used for epoxy potting compounds. And modification of the encapsulant.

6. Unsaturated polyester and thermoplastic polyester cross-linking agent and modifier can significantly improve heat resistance, chemical resistance, dimensional stability, weather resistance and mechanical properties. It is typically used to improve the heat resistance of hot-pressed unsaturated polyester glass fiber reinforced plastic products. The service temperature of the modified products can reach more than 180 .

7. TAIC's own homopolymer polytriallyl isocyanurate is a transparent, hard, heat-resistant, and electrically insulating resin that can also be used to bond glass and ceramics. Typically used in the manufacture of multilayer safety glass.

8. Polystyrene internal plasticizer, copolymerization modification of styrene and TAIC, etc., can produce transparent, shatter-resistant products.

9. metal heat resistance, radiation resistance, weather resistance protective agent, TAIC prepolymer is baked on the metal surface, its baked coating has very good heat resistance, radiation resistance, weather resistance and electrical insulation. Typical insulating materials such as printed circuit boards used to manufacture microelectronic products.

10. Intermediates such as photo-curable coatings, photoresists, flame retardants and flame-retardant cross-linking agents. It is typically used to synthesize highly efficient flame retardant TBC and flame retardant crosslinker DABC.

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