Overview
Low-temperature impact modifiers are polymer additives designed to retain material toughness in freezing conditions where standard plastics become brittle. They work by absorbing and dispersing impact energy through elastomeric domains within the polymer matrix. Originally developed for Arctic pipeline coatings, these modifiers now serve industries requiring cold-weather durability. Major types include methyl methacrylate-butadiene-styrene (MBS) and acrylonitrile-butadiene-styrene (ABS) copolymers, selected based on the host polymer's chemistry.
Physical and Chemical Properties
These modifiers exhibit glass transition temperatures (Tg) below -30°C, enabling flexibility in cold environments. Their particle size (typically 0.1–0.5 µm) ensures uniform dispersion without compromising optical clarity in transparent applications. Chemically, most modifiers resist hydrolysis and UV degradation. Their non-migrating nature prevents leaching, making them suitable for food-contact applications. Testing standards like ASTM D746 evaluate low-temperature brittleness resistance.
Main Applications
In automotive sectors, modifiers are critical for bumper fascias and interior trims exposed to winter conditions. Construction applications include vinyl window profiles that must withstand thermal cycling without cracking. The packaging industry uses these additives for frozen food containers, where materials face repeated transitions between freezer and room temperatures. Some formulations meet FDA 21 CFR compliance for direct food contact.
Safety and Storage
While generally non-hazardous, powder forms may generate airborne dust requiring NIOSH-approved respirators. Store in moisture-proof containers to prevent clumping, ideally at 15–25°C. Disposal should follow local regulations for synthetic polymers. Spills can be swept up mechanically without chemical treatment. Suppliers typically provide Material Safety Data Sheets (MSDS) with region-specific handling guidelines.
B2B Procurement Guide
Industrial buyers should specify: 1) Target service temperature range, 2) Host polymer compatibility, 3) Regulatory requirements (e.g., REACH, RoHS). Sample testing under actual operating conditions is recommended. Leading manufacturers include Dow Chemical, Kaneka, and LG Chem. Bulk shipments (500+ kg) often reduce costs by 15–20%. Technical support for dosage optimization (typically 5–15% by weight) is a key differentiator among suppliers.
Related Manufacturers
- 主营：ADMER三井粘合树脂、Nucre粘合树脂、Elvaloy改性树脂、接枝GMA、马来酸酐接枝、PP马来酸酐接枝、PE接枝马来酸酐、Surlyn沙林树脂
- 主营：塑胶原料、PP聚丙烯、PE聚乙烯、EVA醋酸乙烯、PA尼龙6/66、PC聚碳酸酯、POM聚甲醛、ABS、PBT工程塑料、工程塑料、基础塑料、电线电缆、聚苯硫醚、电器外壳、电动工具、家用电器、电气外壳、外壳颗粒、汽车部件、熔喷料、家电部件、电子电器外壳
- 主营：PA66、POM、PA6、TPU
- 主营：增强pbt、pp环保v2、pp耐低温、阻燃剂、pe相容剂、pet相容剂、abs相容剂、合金相容剂、板材增韧剂、增强改性剂、激光镭雕助剂、箱包板材、尼龙增韧、pp阻燃母粒、激光镭雕粉、超声波焊接、塑料专用环保、无卤聚酯阻燃、高温尼龙阻燃、透明无卤阻燃、激光打标镭雕、环保阻燃母粒
- 主营：合成树脂、不饱和树脂、环氧树脂、固化剂、聚酯多元醇、酚醛树脂、医药中间体
- 主营：润滑剂、尼龙增韧剂
- 主营：镭雕粉、激光母粒、EBS、紫外线吸收剂、光稳定剂、MBS增韧剂、相容剂、耐热剂、成核剂、PETS、EVA、SIS热塑性弹性体、SBS热塑性弹性体、SEBS热塑性弹性体、SEPS热塑性弹性体、SMA树脂
- 主营：丙烯酸、色墨油墨、聚氨酯乳液、减磨剂、防锈剂、添加剂、润滑剂、抗腐剂、抗氧剂、改进剂、清净剂、极压剂、金属钝化剂、无灰分散剂、润滑脂拉丝剂、润滑油破乳剂、膜强度增强剂、润滑油增稠剂、润滑脂增粘剂、导热油复合剂、活塞环释放剂、聚氨酯树脂、复合油墨树脂、高分子化合物、硫化烷基酚钙
- 主营：塑料粉末、弹性体材料 tpu tpr tpe、微晶蜡、塑料增韧剂、增刚剂、抗氧剂、抗紫外线剂、低熔点石蜡
- 主营：镭雕助剂、阻燃剂、抗滴落剂、增韧剂、润滑剂、相容剂、成核剂、抗氧化剂、磷酸酯类阻燃剂、开口爽滑剂、紫外线吸收剂、镭雕粉、镭雕母粒、阻燃母粒
- 主营：脱模剂、成核剂、润滑剂、镭雕助剂、抗氧剂、扩链剂、增韧剂、阻燃剂、抗氧化剂、抗UV剂、钛白粉、黑色母粒
- 主营：石蜡、微晶蜡、硬脂酸、乙二醇、丙二醇、丁二醇、异辛酸铝、乙烯脲、偏苯三酸酐、醋酸、乙醇、片碱、甘油、TCPP、聚丙烯酸钠、异丙醇、异壬酸、TxP、CDP、IPPP、TEP、TPP
- 主营：塑胶粉末、(特种)工程塑料、热塑性弹性体、耐寒型抗冲击改性剂、通用塑料
- 主营：润滑剂、高温抗氧剂、sebs755175339901
- 主营：螺杆清洗料、抗菌母粒、抗静电母粒、螺杆清洗剂、发泡剂、防雾剂、耐寒母粒、防老化母粒、阻燃母粒、硅酮母粒、硅酮粉、增透母粒、增刚母粒、开口母粒、降解母粒、抗氧化母粒、消光母粒、哑光母粒、防锈母粒、香味母粒、脱模母粒、增韧母粒、微晶蜡、色母粒、填充母粒