离岸价格
获取最新报价( Negotiable )
|Minimum Order
位置:
-
最小订单价格:
-
最小订单:
1 Metric Ton
包装细节:
25kgs/drum
交货时间:
15 days after received the deposit or workable
供应能力:
15 Metric Ton per Month
付款方式:
T/T
联系人 Ms. Diana
No.32,zhujiang road ETDZ, Yantai, Shandong
| Name | ACTOR-TDDS |
| CAS NO. | *********8 |
| EINECS | ********0 |
| Specification |
A vulcanizing agent is designed for use with halogenated elastomers such as chlorinated polyethylene (CPE). It is supplied as an off-white powder with a specific gravity of 1.*6. ACTOR-TDDS is a blend of esters of 2,*-dimercapto*1,3,*-thiadiazole. In general, CPE compounds exhibit good resistance to oil, heat, and ozone. The appropriate choice of vulcanization system and formulating ingredients is the key to the ultimate performance and cost effectiveness of CPE compounds. Peroxides have commonly been used as the cross-linker for CPE in applications requiring optimum compression set and heat resistance. For less stringent applications, the use of ACTOR-TDDS allows for a more highly-extended, lower-cost compound than is possible with peroxides. The resultant vulcanizates cured with ACTOR-TDDS are high-performance compounds with heat resistance only slightly less than that obtained by peroxide cures. |
| Advantages |
Single pass mixing. No bloom or surface stains. Cure rate that can be accelerated. Cures not inhibited by oxygen. Lead-free compounds. Low compound cost. |
| Function |
ACTOR-TDDS functions as a di-nucleophile, vulcanizing any elastomer containing replaceable halogen atoms. Because of this, many inexpensive fillers, oils, and plasticizers can be used with ACTOR-TDDS. The cure mechanism of ACTOR-TDDS involves hydrolysis of the thioester bonds within ACTOR-TDDS to form a dimercaptide intermediate. This di-nucleophilic species then displaces halogens on the elastomer backbone to become a cross-link. ACTOR-TDDS should be used in conjunction with an amine accelerator and a basic metal oxide acid acceptor/cure activator. The cure rate can be increased by increasing the level of the amine accelerator or of the metal oxide; however, this often results in reduced heat-aging performance. Cure rate can also be accelerated by including a water donor such as Epsom salts in the formulation. |
