POM(100ST杜邦)
Delrin® 100ST
ACETAL RESIN
DuPont Performance Polymers
Product Description:
Super Toughened High Viscosity Acetal Homopolymer
供应POM 美国杜邦 100TL 加1.5%PTFE
供应POM 美国杜邦 500P高粘度
供应POM 美国杜邦 500T超韧级
供应POM 美国杜邦 500CL耐磨级
供应POM 美国杜邦 100P高韧性，耐磨级
供应POM 美国杜邦 107UV 抗紫外线
供应POM 美国杜邦 527UV 抗UV
供应POM 美国杜邦 111P 挤出级
供应POM 美国杜邦 358T 食品级
供应POM 美国杜邦 100T 高韧性，耐磨级
供应POM 美国杜邦 900P 低黏度高流动
供应POM 美国杜邦 911P 低黏度高流动
供应POM 美国杜邦 525GR 25%玻纤增强级 中粘性
供应POM 美国杜邦 570 玻纤增强级 高刚性，低翘曲
供应POM 美国杜邦 100ST 超增韧级
应POM 美国杜邦 100AF 加铁氟龙纤维 高耐磨 高粘度
供应POM 美国杜邦 500AF（加20%PTFE纤维），高耐磨高粘度
供应POM 美国杜邦 P,45P
| 添加剂 | 润滑剂脱模 |
| 特性 | 高粘度均聚物 |
| RoHS 合规性 |
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| 形式 |
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Homopolymers have excellent tensilestrength and fatigue resistance, but they are not easy tomanufacture. Prepolymer raw materials have excellent heatresistance, organic chemical reliability and easy production andprocessing. No matter homopolymer raw material or prepolymer rawmaterial, all crystal raw material and not easy to digest andabsorb water. The high crystal level of POM results in a very highshrinkage rate of 2% ~ 3.5% .
For avariety of different reinforced raw materials have differentshrinkage. The formation of homopolymer chips usually takes placein the presence of acid in the solution of indoor formaldehyde. Thepet chips with polymerization degree of 100 or so were obtained andthen heated to convert into formaldehyde vapor in the room. Afterbeing specially made and dedried, some prepolymers were used topurify the reactivity ratio, the polymer is then developed in a dryorganic solvent containing a small amount of initiator. Due to thepresence of water, the content is significantly reduced. Theinitiator can be Lewis acid or base, etc. . The results showed thatthe end group of pet chip was a semi-acetal (as-ch2oh) . When thetemperature was higher than 100 °C, the end group was easy tobreak, and the end group had to be stabilized by end groupsolution. After stabilization, it can bear high temperature to 230°C. Polyoxymethylene can be produced and processed at temperaturesranging from 170 °C to 200 °C, such as injection, extrusion andinjection molding. The key is used for rubber products, cars,mechanical parts and so on.