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Hapsoft PP compounds 是 featured in the center floor console trim, front-seat back boards 和 instrument-panel trim of the 2020 Land Rover Defender. 


而  polypropylene 恩 compasses a widely diverse range of properties 和 uses, two themes characterize the new generation of higher-performing PP resins 和 compounds. One is competitive inroads against not only other commodity resins like PS 和 PET, but also 更贵engineering polymers like nylons 和 PC. The other is a significant push 对于 sustainability—without 性能下降。 Newer offerings 这些趋势包括 grades that extend lightweighting opportunities 如发泡PP,短 and 长-glass reinforced compounds, carbon-fiber reinforced PP, 和 成绩 with recycle content 或由生物基原料制成。

Within the last couple of years, we have reported on PP suppliers 和 compounders that have acquired recycling companies, such as 北欧人  and 阿尔比斯塑料。我们还报告了从生物基丙烷生产PP的进展。北欧化工目前正在商业化生产基于可再生原料的PP,该原料采用Nexblt专有技术 Findland’s Neste at two Belgian 设备。去年, 里昂德尔·巴塞尔 was the first to successfully produce biobased PP 和 LDPE in parallel  using Nexbtl technology, 和 is now validating market demand 对于 these products.


可持续PP

如先前报道, 沙伯基础’s Trucircle portfolio includes its new certified-renewable, virgin PP polymers based on second-generation, animal-free, biobased feedstock such as waste from wood pulping. Trucircle also includes 成绩 for designing 对于 recyclability to help minimize waste 和 恩 courage recycling, as well as mechanically 回收的 products 混合原料制成的经认证的圆形产品 plastic waste.

布拉斯科姆 ’s I’m Green brand of PE 和 PP includes biobased resins, post-consumer 回收的 (PCR) resins, as well as mixed biobased plastics 和 PCR offerings, though the 公司尚未生产 I’m Green PP on an industrial scale. In July, 布拉斯科姆 became the lead founding member of the PP 回收利用 Coalition, aimed at improving PP recovery 和 recycling in the U.S.

Weighing in on new 和 future PP developments 是 three leading PP resin producers—埃克森美孚化工, 沙伯基础 和 布拉斯科姆 —and two major “engineering” compounders— RTP公司 . and 阿尔比斯塑料.

The reusable Tupperware EcoStraw 和 a new drinking tumbler 是 both made from 沙伯基础’s certified circular PP polymer that is derived from a feedstock of mixed 塑料废物。 

性能 PP 对于 Automotive & More

Advanced PP materials 对于 automotive appear to dominate 最新发展。说RTP源,“随着树脂制造商不断改善纯PP的性能,混料商可以利用这些改进后的产品。 grades 推动诸如TPO之类的PP基化合物的性能  For example, new high-flow copolymer PPs 是 achieving better 和 better impact-resistance 和 flexural-modulus balances, which can be improved further through the addition of modifiers or mineral fillers.”

埃克森美孚推出两个新的性能等级 两者都通过制造更薄,更轻的零件来解决持续减轻汽车重量的驱动力 PP,Vistamaxx和粘合剂业务的全球市场经理Olivier Lorge说道,同时又保持了冲击性能和刚性。新成就Advanced PP7925E1 对于 北美和埃克森美孚PP7495E1 亚太地区旨在满足各自地区客户的规格偏好。 两种等级均可提供100 MFR或更高的流量,可有效地成型更薄的零件。 在这一领域的进一步创新 is 预期为轻量化 continues to be a goal for 两者都燃烧 and electric 车辆,Lorge指出。

例如,洛尔 points to 流行的跨界SUV上的大型举升门越来越多地由PP /玻璃纤维复合材料代替钢制成。 He 期望电动汽车只会扩展 PP’s inroads. “转向电动汽车的一个结果是,取消了高热源内燃机(ICE),该发动机使PP可以在引擎盖下代替工程树脂和金属,也许就像举升机门的例子一样。引擎盖本身。 即使在ICE车辆中,缩小尺寸也提供了在进气歧管和发动机罩等应用中增加PP使用的机会。 另外,低温LED允许在灯罩中使用更多的PP,即使它们位于‘all-time-on’ mode.”

PP is increasingly challenging higher-cost resins like nylons 和 PC.

沙伯基础’PP业务全球总监Lada Kurelec, 指向公司’新型无卤阻燃PP 玻璃短和长的化合物 在苛刻的应用中提供低密度解决方案的增强材料。具有良好的耐热性和 电气和机械性能,这些化合物适用于 汽车以及电气/电子(E&E),房屋建筑和设备。这些材料具有可加工性和 机械和电气性能,以及低可燃性等级。由这些化合物制成的组分针对E&E应用包括电动汽车动力总成和充电基础设施,以及微型断路器,配电箱,连接器,开关和插座,电动工具外壳以及建筑结构中的结构部件。该产品组合的目标是需要连续使用温度范围为100 C / 212 F的材料,足以替代尼龙6和66。

沙伯基础 has launched Hapsoft S3615, S3620 和 S3625 PP compounds that can deliver soft-feel haptics with excellent scratch resistance 对于 unpainted, low-gloss applications. These injection molding 成绩 boast luxurious haptics 和 finishes 和 can help manufacturers reduce costs by as much as 50% by avoiding secondary operations. Applications include auto interiors, small appliances  和消费类电子产品。

通过最近与葡萄牙的合作’s Solaris防护, 沙伯基础 supplied a specialty PP compound 对于 the injection molded floaters in Solaris-Protevs’ 浮动太阳能电池板系统。这些轻巧,高刚度 浮动太阳能电池板可以放在内陆 water surfaces, such as lakes, 和 can connect to the 电动al grid, providing a renewable 恩 ergy source to cities.

A 沙伯基础 specialty PP compound is used to mold the floats 对于 Solaris-Protev’s 浮动太阳能电池板系统。

阿尔比斯塑料 母公司Otto Krahn Group现在以新的Mocom品牌运营  has separated its compounding business 和 its resin distribution 业务(保留Albis品牌)作为两个独立的公司经营。  根据Bernd Sparenberg,v.p.全球销售额& market development, new 和 future performance PP compounds include closing the gap between standard PP 和 nylon 6. Included 是 the Altech NXT PP, short-glass compounds with high stiffness, lower density, great chemical resistance, lower moisture absorption, 和 heat aging of 2000 hr at 150 C/302 F. A recent application 用于紫外线稳定的NXT PP 是新款大众SUV的后备箱开启器。

Mocom的另一个经过高度工程设计的系列是Alcom LB PP复合材料,旨在替代反射器和LED外壳(例如汽车)中的PC 仪表盘。据说Alcom LB PP能够在狭窄的空间内分离不同的光源。该材料的透光值为<在0.5毫米处为0.2%,光反射率高达97%,出色的流动性,高热稳定性,良好的强度和刚度平衡,高尺寸稳定性和低翘曲。当前的汽车应用是本田反射器,据说该反射器在薄壁厚度下具有高不透明性,高反射率和增加的光输出。新的PP化合物还针对电子电气,家电,消费品,医疗保健和草坪&园林应用。

与姊妹公司Wipag合作 (德国的塑料回收商),Mocom还提供回收含量高的化合物, including Altech Eco Near-to-Prime PP compounds, Altech IQ (Industrial Quality) 成绩, Wipelast PP/EPDM, 和 Wipaflex PP/PE/EPDM, primarily targeted to automotive

RTP sources say compounds such as 长-glass 和 short-carbon-fiber PP make a lot of sense in automobile designs where 额外的燃油经济性或续航里程--as in the case of 电动 vehicles—are primary concerns. RTP expects long-glass PP to see further growth due to the continued shift to lighter 和 more 恩 vironmentally friendly materials as replacements 对于 heavier 工程化合物,例如短玻璃尼龙或 PBT。 Mocom正在与 post-industrial 回收的 PP with 30% 长 glass. 一个正在进行的项目是 the tailgate of  VW’s ID3 电动al vehicle.

RTP消息人士称PP化合物与 long glass or short carbon fiber make a lot of sense in automobile designs 对于 额外的燃油经济性或续航里程—as in the case of 电动 vehicles, such as this “frunk” component.

RTP 我们最近还开发了一条新的短碳纤维PP复合材料生产线,当轻量​​化要求证明碳纤维成本合理时,可以为更轻的零件铺平道路。 Mocom也正在研究碳纤维PP化合物 called WIC PP,  对于 高达60%玻璃填充尼龙6的应用 目前正在使用。关键是使用低成本 由姊妹公司Wipag提供的再生碳纤维。的 recycled 碳纤维的成本不到原始纤维的10%。一种应用是宝马奥迪的加油口铰链臂, 其中WIC PP 30取代了50%玻璃填充尼龙6,从而使重量和成本降低了32%。另一个是保时捷’新的电动Taycan WIC PP正在替换仪表板和行李箱支撑梁中的玻璃纤维尼龙6和66。
 

发泡的 PP Poised 对于 Wide-Ranging Growth

Whether 对于 packaging, automotive, building construction or consumer goods, traditional solid materials 是 moving towards lightweight foamed structures. 沙伯基础’s Kurelec says the next generation of thermoplastic foam solutions with improved dimensional stability 和 stiffness 和 less warpage 是 produced by a number of processing technologies that 是 in a state of continuing evolution 和 innovation.

Historically, foam applications have been dominated by amorphous polymers such as PS, PUR 和 PVC. 泡沫半结晶PP相对较新, which has not gained 埃克森美孚公司表示,大型商业牵引力’s Lorge. Last month, 该公司推出了可发泡的Achieve进阶PP6302E1,描述为 an easily processed, sustainable solution 对于 high-volume applications. 新型高熔体强度(HMS)PP delivers up to 30% 刚度比 标准HMS PP泡沫,可在一系列应用中显着降低成本。

在工业包装中,埃克森美孚’s Achieve Advanced PP6302E1 起泡的 PP boasts toughness 和 strength, temperature stability, moisture 和 chemical resistance, 和 light weight.

PP6302E1 is recyclable 和 恩 ables less material use.  “With PS foam, VOCs 和 monomer concerns being increasingly regulated, PP6302E1 is a viable alternative 和, importantly, is processable on PS foam lines with varied blowing agents,” says Lorge. Processors, brand owners 和 OEMS can unlock 机会 in applications that benefit from 轻量化 和 绝缘 while leveraging PP properties:

 ▪  In food 和 beverage packaging—meat trays, microwaveable bowls/meals/trays, clamshells, 和 cups—PP6302E1 reportedly delivers improved stiffness 和 reduced cost, along with excellent 绝缘 properties, good recyclability, 和 durable grease 和 moisture resistance even at high temperatures in microwave ovens 和 dishwashers. 包装保留 internal contents temperature during transit 和 offers comfort-touch surfaces. 

 ▪ 在工业包装中—boxes, dividers, 和 sheets—PP6302E1 boasts toughness 和 strength, temperature stability, moisture 和 chemical resistance, 和 light weight. The stiff 和 durable packaging can be re-used 和 is well-suited to replacing corrugated sheet to protect valuable materials.

 ▪ 在建筑产品中绝缘 and concrete joints—PP6302E1 reportedly delivers durability 和 flexibility 对于 ease of installation. The products 是 thermally stable over a broad temperature range 和 moisture resistant 对于 dimensional stability.

 ▪ 在汽车零部件中 - 顶棚,管道,地板衬里PP6302E1  boasts improved stiffness 恩 abling manufacturers to maintain performance properties while reducing weight 和 increasing fuel efficiency.

Heat resistance 对于 microwavability favors foamed PP over PS in food packaging.

添加埃克森美孚’s Lorge, “Heat resistance 对于 microwaveability 继续是 key differentiating factor that makes foamed PP an attractive choice over PS in food packaging. Compared with paper, PP6302E1 offers affordable 绝缘 performance 对于 a better consumer experience in packaging applications. Toughness/stiffness also help with durability so that products can be reused.” 

沙伯基础’s Foam Innovation Center in The Netherlands is equipped with foam processing capabilities 和 analytical equipment, 恩 abling 沙伯基础 to carry out developments on new foam technology and collaborative projects with value-chain partners to reduce material footprint, 恩 able 恩 ergy 和 cost reductions, 和 slash time to market. “Close collaboration with our customers has 恩 abled 沙伯基础 to build up a large bank of knowledge on the various foaming processes, 和 to develop a dedicated, diverse foam portfolio, applicable in almost all 恩 d applications,” says Kurelec.

这些新的泡沫解决方案包括 SABIC PP-UMS(超熔体强度) foamable PP树脂。据说在市场上是独一无二的 据报道具有出色的发泡性 由于有效的处理,可以节省成本, and meets stringent industry emissions requirements. Its light weight 和 insulating properties 是 said to be attractive 对于 automotive, packaging, 和 building construction.


下一代 PP 对于 Packaging

聚丙烯 suppliers say sustainability concerns 是 motivating a big shift from PS to PP 对于 injection molded rigid packaging. According to 沙伯基础’s Kuralec, PP 和 PP foam 是 compatible with recycling systems using float/sink separation because of PP’s lower density 比PS会下沉 和污染风险 PET瓶回收流。

与PS不同,PP’s lower density 恩 ables float-sink separation of PP from PET 对于 recycling.

 SABIC has launched Flowpact FPC75, a new phthalate-free PP impact copolymer 对于 injection molding. The material is said to offer downgauging 和 faster processing 对于 food 和 non-food thinwall packaging.

布拉斯科姆 最近推出了新的 激发热成型等级 can replace PET. 新牌号的光学性能类似于PET,耐热性比PET或 PP random copolymer. It is targeted to applications which demand a great balance of clarity 和 heat resistance, such as store 和 restaurant pre-prepared 和 ready-to-heat meals. The improved heat resistance allows these containers to be cleaned in the dishwasher 对于 reuse.

布拉斯科姆 also has a new PCR homopolymer PP said to be well suited 对于 compounding 和 uses in packaging, automotive, housewares 和 consumer goods.

沙伯基础 has a new heterophasic impact PP 对于 flexible packaging. 沙伯基础 PP BCT18F is targeted 对于 use in lamination films in retort food packaging. Recent customer trials confirmed its very good processing 和 performance properties in all film extrusion processes 包含 cast, blown 和 tenter-frame production lines. Also, this grade offers very good impact strength at low temperature (-20 C/-4 F_) 对于 frozen-food packaging 和 outperforms 市场上可比的材料。

Also new from 沙伯基础 is high-stiffness PP 5212P 对于 BOPP films 对于 labels, tape 和 food packaging such as confectionary, snacks, baked goods, dried fruits, pasta, 和 fresh-food packaging. Its broad molecular-weight distribution is said to 恩 able easy processing with 减少胶片断裂 高达1722英尺/分钟的高速生产。据报道,它提供了优化的MFR and high stiffness 和 barrier properties.

埃克森美孚是 洛尔格说,它也在探索现有产品组合的新组合。例如,埃克森美孚PP2252 PP与Exceed XP性能PE的结合提高了吹塑薄膜的质量 allowing the fabrication of films with higher dart-drop impact resistance, creep improvement, 和 reduced film deformation due to shrinkage. The high-temperature resistance 和 shrink performance creates 机会 对于 compression liners, hot-fill packaging, 和 stand-up pouches.

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