CN104379663A - 用于制备亲水性聚苯乙烯的组合物 - Google Patents

用于制备亲水性聚苯乙烯的组合物 Download PDF

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CN104379663A
CN104379663A CN201380030687.7A CN201380030687A CN104379663A CN 104379663 A CN104379663 A CN 104379663A CN 201380030687 A CN201380030687 A CN 201380030687A CN 104379663 A CN104379663 A CN 104379663A
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polystyrene
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CN104379663B (zh
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P·科尔迪兹
L·利本亨楚尔
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Clariant International Ltd
Clariant Finance BVI Ltd
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Abstract

本发明涉及包含组分B、组分C、组分D、组分E和组分P的组合物Z，其中所述组分B为聚乙二醇，所述组分C为聚甘油酯，所述组分D为碱土金属碳酸盐，所述组分E为层状硅酸盐，和所述组分P为聚苯乙烯和/或其合金。所述组合物Z适合于增加特别是用于制造膜、片材或食品托盘的经加工的固体或发泡的聚苯乙烯材料的亲水性质。

Description

用于制备亲水性聚苯乙烯的组合物
本发明涉及与苯乙烯共同挤出，从而增加经加工的固态非发泡的或发泡的聚苯乙烯材料的亲水性质的组合物。
固态非发泡的或发泡的聚苯乙烯被广泛地用作用于制造包装食品，如肉、鱼、蔬菜或水果的托盘的合适材料。这些被包装在托盘中的食品通常释放出水、果汁或血，其充填在经包装的托盘内。从卫生和视觉的观点来看，非常可取的是快速地吸收这些液体，优选通过具有合适的吸收性质的托盘材料来吸收。
在塑料工业中，习惯使用呈配混料或母料形式的添加剂。
出于本发明的目的，母料是包含聚合物和添加剂的组合物，其中所述添加剂以比最终应用更高的浓度存在，和载体聚合物可为或可不为最终应用的聚合物。添加剂在母料中的优选浓度为0.1至90重量％，尤其是1至80重量％，特别是10至75重量％的范围，基于母料的总重量计。
出于本发明的目的，配混料是包含聚合物和添加剂的组合物，其中所述添加剂以最终应用或最终制品的期望的最终浓度存在，和所述聚合物为最终应用或最终制品的期望的聚合物，从而使得所述配混料仅借助于物理成型方法成为最终应用或最终制品的期望的形状。
包含亲水性添加剂并用于制备亲水性组合物或制品的母料和/或配混料必须满足严格的要求：所述组合物应当具有高负荷，即高浓度的亲水性添加剂，并且其应当可以设定最终制品中聚合物表面与水之间的期望的接触角。进一步的要求是与最终应用或最终制品的聚合物良好的可混合性和相容性。此外，想要的是发泡的聚苯乙烯食品托盘中的水或肉汁的高吸收。对于聚苯乙烯表面对水性液体的吸收性质而言的可量度的变量是聚苯乙烯与水的表面角(静态接触角)。表面角越低，吸收性质越好。
EP 2 289 994 A2公开了用于聚苯乙烯发泡托盘的吸收性母料片组合物，其中所述母料片包含有机阴离子磺酸盐、碳酸钙和滑石。
然而，已知的组合物不满足当前工业上的所有要求，特别是它们的吸收性质不足。需要包含亲水性添加剂的母料和配混料，其提供低的静态接触角并且还在可成型性和机械稳定性(例如密度、硬挺性和撕裂强度)方面与聚合物材料相容。
已发现包含聚苯乙烯和亲水性添加剂的特定混合物的以下组合物Z令人惊讶地呈现出关于前述需求的改进的性质。
本发明的主题是组合物Z，其包含组分B、组分C、组分D、组分E和组分P，其中
所述组分B为聚乙二醇，
所述组分C为聚甘油酯，
所述组分D为碱土金属碳酸盐，
所述组分E为层状硅酸盐，
和所述组分P为聚苯乙烯和/或其合金。
根据本发明，组合物Z适合于增强聚苯乙烯的亲水性，这意味着根据本发明提供通过特定添加剂改性的聚苯乙烯材料，从而获得聚合物表面与水之间的较低的静态接触角，以及还提供经添加的聚苯乙烯材料与真性聚苯乙烯材料相比更高的吸水能力。
本发明的另一主题是如前文所述的组合物Z用于制造固态非发泡的或发泡的聚苯乙烯的吸收性制品的用途，其中所吸收的物质优选为水性液体。
组合物Z优选为母料MB或配混料，如前文所定义。
所述吸收性制品优选为膜、片材或容器，例如食品托盘，其优选与含水食品，例如肉、鱼、蔬菜或水果接触。
所吸收的物质优选为水、血或果汁。
本发明的又一主题是如上文所定义的包含组分B、组分C、组分D、组分E和组分P的固态发泡的或非发泡的聚苯乙烯制品。在本发明的优选实施方案中，所述制品与含水食品，例如肉、鱼、蔬菜或水果接触，和所述制品优选为膜、片材或容器，例如食品托盘。
出于本发明的目的，亲水性固态非发泡的或发泡的聚苯乙烯的特征在于，静态接触角为5°至81°，优选30°至80°，尤其是40°至79°。
本发明的又一主题是如前文所定义通过将组分B、C、D、E和P的混合物挤出、捏合、压制或注塑成型用于增强固态非发泡的或发泡的聚苯乙烯的亲水性的方法。
优选地，组分B包含1、2、3或4种，更优选1或2种，甚至更优选1种聚乙二醇。
优选的聚乙二醇为摩尔质量分布Mn为100g/mol至8,000,000g/mol，优选150g/mol至1,000,000g/mol，更优选160g/mol至100,000g/mol，特别是180g/mol至35,000g/mol，更特别为200g/mol至20,000g/mol的聚乙二醇。
优选的聚乙二醇为pH值为5至7的聚乙二醇。
优选的聚乙二醇为20℃时粘度(50％于水溶液中)为50至14,000mPa*s的聚乙二醇，20℃时粘度(1％于水溶液中)为4000至15,000mPa*s的聚乙二醇，20℃时粘度(2％于水溶液中)为400至800mPa*s的聚乙二醇，和20℃时粘度(5％于水溶液中)为30至50mPa*s的聚乙二醇。
优选的聚乙二醇为羟值为1至800mg KOH/g，更优选3至700mgKOH/g，甚至更优选4至650mg KOH/g，特别是5至620mg KOH/g，特别是30至610mg KOH/g，或特别是530至600mg KOH/g的聚乙二醇。
优选的聚乙二醇为具有两个游离羟基端基的线性聚乙二醇。
组分C：聚甘油酯
聚甘油由通过醚连接基连接的甘油单元组成。优选的是二甘油、三甘油和四甘油。实例是α,α-二甘油、α,β-二甘油、β,β-二甘油
下式的α,α-二甘油
下式的α,β-二甘油
下式的β,β-二甘油
下式的三甘油
对于本发明的目的优选的是所述聚甘油的单脂肪酸酯。适宜地使用采用一种脂肪酸酯化的二甘油、三甘油和四甘油的混合物。可以存在少量五甘油或八甘油酯。最优选的是聚甘油-3-单脂肪酸酯。聚甘油-3典型地包含最少80％的二甘油、三甘油和四甘油。
优选的脂肪酸聚甘油酯具有链长为C4至C24，更优选C6至C20，尤其是C12至C18，特别是C16至C18的脂肪酸。所述脂肪酸可以是饱和的或不饱和的。优选的是具有上文指定的链长的饱和和单不饱和脂肪酸。
优选的脂肪酸聚甘油酯是脂肪酸三甘油酯。
适宜地，市售可得的脂肪酸的聚甘油酯可用于本发明的目的。这些市售可得的产品通常是包含多于一种脂肪酸聚甘油酯、游离脂肪酸、和脂肪酸的单甘油酯、二甘油酯、三甘油酯和四甘油酯的混合物。
组分C的三甘油酯含量优选为30至100重量％，更优选50至99重量％，尤其是70至98重量％，基于组分C的总重量计。
最优选的是聚甘油-3-单硬脂酸酯、聚甘油-3-单油酸酯、聚甘油-3-单棕榈酸酯、聚甘油-3-单月桂酸酯。
典型的实例是聚甘油单月桂酸酯
其中n＝2或3；
和聚甘油单油酸酯
其中n＝2或3；
和聚甘油单硬脂酸酯
其中n＝2或3。
优选地，组分C的酸值为低于5mg KOH/g，更优选低于3mgKOH/g，甚至更优选低于2mg KOH/g。优选地，组分B的碘值为低于5g I2/100g，更优选低于3g I2/100g，甚至更优选低于2g I2/100g。
优选地，组分C的皂化值为125至155mg KOH/g。
优选地，组分D包含1、2、3或4种，更优选1或2种，甚至更优选1种碱土金属碳酸盐。
优选的碳酸盐为碳酸钙(CaCO3、方解石或文石)、碳酸镁(MgCO3,菱镁矿)或碳酸镁钙(CaMg(CO3)2、白云石)。
优选的碳酸盐是天然碳酸钙或合成的沉淀碳酸钙。
适宜地，市售可得的碳酸钙也可以用于本发明的目的。这些市售可得的产品通常以小量包含杂质，例如Fe、Mn、Sr、Pb、Cd、Cu、Zn离子、MgCO3、Al2O3、Fe2O3或SiO2。
所述碱土金属碳酸盐适宜地以粉末形式，优选以具有1至10μm的平均粒度的微粉化形式使用。
优选地，组分E包含1、2、3或4种层状硅酸盐，更优选1或2种，甚至更优选1种层状硅酸盐。层状硅酸盐被限定为形成具有2:5的Si:O比的硅酸盐四面体平行薄页的页硅酸盐(Nickel-Strunz分类)。
优选的是包括埃洛石、高岭石、伊利石、蒙脱石、蛭石、滑石、坡缕石、和叶腊石的粘土矿物组的层状硅酸盐，更优选Mg3Si4O10(OH)2(滑石)。
适宜地，可以将市售可得的滑石用于本发明的目的。这些市售可得的产品通常以小量包含杂质，例如Fe、Mn、Ti、Ni、Sr、Pb、Cd、Cu、Zn、Mn、Na、K、Cl离子、MgCO3、Al2O3、Fe2O3、FeO、MgO、SiO2。
所述层状硅酸盐适宜地以粉末形式，优选以具有1至10μm的平均粒度的微粉化形式使用。
优选地，组分P包含1、2、3或4种，更优选1或2种，甚至更优选1种聚苯乙烯。
聚苯乙烯可以为苯乙烯均聚物；烷基苯乙烯均聚物，优选C1-C4-烷基苯乙烯均聚物，例如α-甲基苯乙烯均聚物；苯乙烯共聚物，特别是高抗冲聚苯乙烯(HIPS)。高抗冲聚苯乙烯(HIPS)通常通过接枝苯乙烯和任选的一种或更多种可共聚的乙烯基单体的混合物，优选苯乙烯、甲基苯乙烯、乙基苯乙烯、丁基苯乙烯、卤代苯乙烯、乙烯基烷基苯如乙烯基甲苯、乙烯基二甲苯，丙烯腈、甲基丙烯腈，甲基丙烯酸的低级烷基酯的混合物，在包含选自聚丁二烯、聚异戊二烯、橡胶状苯乙烯-二烯共聚物、丙烯酸系橡胶、腈橡胶和烯属橡胶如丙烯二烯单体橡胶(PDM)和丙烯橡胶(PR)的共聚物的橡胶状聚合物主链(trunk)存在下聚合制备。在所述高抗冲聚苯乙烯中，所述橡胶聚合物主链通常占经接枝的聚合物总重量的5至80重量％，优选5至50重量％。
此外，也可能使用苯乙烯-丁二烯-苯乙烯(SBS)共聚物和合成丁基橡胶(SBR)。
还可能使用上述苯乙烯聚合物的混合物或合金。
组分P的优选的密度为1.0至1.1g/cm3，更优选1.02至1.06g/cm3，甚至更优选1.03至1.05g/cm3。
优选的聚苯乙烯为根据ISO 1133在200℃/5kg时的MFR为0.1至300g/10min，更优选1至200g/10min，甚至更优选5至100g/10min，特别是10至50g/10min，更特别是15至35g/10min，尤其是20至30g/10min的聚苯乙烯。
组合物Z适宜地包含0.06至90重量％的组分B、C、D和E的总和，优选Z包含0.5至80重量％的组分B、C、D和E的总和，更优选Z包含1.0至70重量％的组分B、C、D和E的总和，甚至更优选Z包含1.25至50重量％的组分B、C、D和E的总和，特别是Z包含1.5至25重量％的组分B、C、D和E的总和，所述重量％基于所述组合物Z的总重量计。
组合物Z优选以0.1至10.0，优选0.2至5.0，更优选0.3至1.0，甚至更优选0.4至0.8，特别是0.5至0.6的组分B与组分C的重量比包含组分B和组分C。
如果所述组合物Z为母料MB，则Z适宜地包含
0.2至20重量％的组分B，
0.4至40重量％的组分C，
0.2至20重量％的组分D，
0.1至10重量％的组分E，
10至99.1重量％的组分P，
所述重量％基于所述组合物Z的总重量计。
如果所述组合物Z为母料MB，则Z适宜地包含
1.5至20重量％的组分B，
3至40重量％的组分C，
1.5至20重量％的组分D，
0.75至10重量％的组分E，
10至93.25重量％的组分P；
优选地，所述组合物Z作为母料MB包含
3至15重量％的组分B，
6至30重量％的组分C，
3至15重量％的组分D，
1.5至7.5重量％的组分E，
32.5至86.5重量％的组分P；
如果所述组合物Z为配混料，则Z适宜地包含
0.0167至1.47重量％的组分B，
0.0333至2.94重量％的组分C，
0.0167至1.47重量％的组分D，
0.00835至0.735重量％的组分E，
93.385至99.92495重量％的组分P；
优选地，所述组合物Z作为配混料包含
0.07至1重量％的组分B，
0.14至2重量％的组分C，
0.07至1重量％的组分D，
0.035至0.5重量％的组分E，
95.5至99.69重量％的组分P；
更优选地，所述组合物Z作为配混料包含
0.25至0.75重量％的组分B，
0.5至1.5重量％的组分C，
0.25至0.75重量％的组分D，
0.125至0.375重量％的组分E，
96.63至98.88重量％的组分P；
甚至更优选地，所述组合物Z作为配混料包含
0.3至0.7重量％的组分B，
0.6至1.4重量％的组分C，
0.3至0.7重量％的组分D，
0.15至0.35重量％的组分E，
96.85至98.65重量％的组分P；
特别是，所述组合物Z作为配混料包含
0.4至0.5重量％的组分B，
0.8至1重量％的组分C，
0.4至0.5重量％的组分D，
0.2至0.25重量％的组分E，
97.75至98.2重量％的组分P；
所述重量％各自基于所述组合物Z的总重量计。
所述组合物Z可以含有其它物质，优选
-着色剂，有机和无机染料和颜料可能作为着色剂；作为有机颜料，优选使用偶氮或重氮颜料，经涂覆的偶氮或重氮颜料或多环颜料；优选的多环颜料为二酮吡咯并吡咯、酞菁、喹吖啶酮、苝、二噁嗪、蒽醌、硫靛蓝、二芳基或喹酞酮颜料；作为无机颜料，优选使用金属氧化物、混合氧化物、铝硫酸盐、铬酸盐、金属粉末、珠光效果颜料(云母)、发光颜料、钛氧化物、镉-铅颜料、铁氧化物、炭黑、硅酸盐(不同于组分E)、镍钛酸盐、钴颜料或铬氧化物，其适合用于着色；
-分散助剂，优选的分散剂为极性的C10-C30醇的酸酯；
-填料(不同于组分D和E)如二氧化硅、沸石、硅酸盐如铝硅酸盐、硅酸钠、硅酸钙；
-助剂，优选金属皂、发泡剂、成核剂(不同于组分D和E)、过氧化物；
-烷基胺、乙氧基化的烷基胺、甘油酯或其混合物(共混物)；
-UV吸收剂和受阻胺光稳定剂(HALS)化合物、增滑剂、防雾剂、防凝剂和/或悬浮稳定剂、阻燃剂；抗氧化剂或其它常规塑料添加剂；离子液体；
或这些的混合物。
所述其它物质意指不同于组分B、C、D、E和P中的任一种。
这些其它物质适宜地以0至60重量％，优选0.01至40重量％，更优选0.1至30重量％，甚至更优选1至20重量％，特别是2至10重量％存在，基于所述组合物Z的总重量计。在聚苯乙烯为发泡的聚苯乙烯的情况下，优选的其它物质为化学发泡剂。
组合物Z可以通过将组分B、C、D、E和P和任选的任何其它物质彼此物理混合来制备。组分的混合可以在一个步骤中进行或在多个步骤中进行。作为用于物理混合的混合设备，可能使用塑料工业中常规的混合设备，优选选自挤出机、捏合机、压机、注塑机和桨叶混合机的设备。当所述组合物Z为母料MB时，所述混合设备优选为挤出机、捏合机和/或桨叶混合机。当所述组合物Z为配混料时，所述混合设备优选为挤出机、压机和注塑机，尤其优选挤出机。
混合优选连续地或分批地进行，尤其优选连续地进行，在母料MB的情况下优选通过挤出或捏合，尤其优选通过挤出进行，和在配混料的情况下优选通过挤出或注塑或压制，尤其优选通过挤出进行。
混合优选在80至260℃，更优选120至250℃，甚至更优选150至230℃，特别是180至220℃的温度进行。
混合时间优选为5秒至10小时。
在连续混合的情况下，混合时间优选为5秒至1小时，更优选10秒至15分钟。
在分批混合的情况下，混合时间优选为1分钟至10小时，更优选2分钟至8小时，尤其是2分钟至5小时，特别是2分钟至1小时，尤其优选2至15分钟。
在配混料的情况下，组分B、C、D、E和P优选以母料MB的形式与聚苯乙烯P混合。此外，优选将母料MB与经粒化的聚苯乙烯的预混合用于物理混合。
令人惊讶地，呈母料MB形式或呈配混料形式二者的组合物Z的特征在于低的静态接触角。
对于生产发泡的聚苯乙烯制品，例如食品托盘而言，将聚苯乙烯与发泡剂挤出。发泡剂可以为物理发泡剂，例如气体如CO2、N2、异戊烷、氢氟烃，或者可以为化学发泡剂，其在加工期间在熔融的聚合物中分解释放气体，例如CO2或N2。在两种方法中，所述气体必须在挤出机筒中的压力下被彻底分散并溶于聚合物熔体中。当熔体通过模头离开挤出机时，压力下降且所述气体使熔体膨胀，在聚合物中产生泡孔结构。以所谓的直接加气挤出的方式生产的发泡挤出的聚苯乙烯制品可以达到15kg/m3至500kg/m3的发泡密度。
测试方法：
摩尔质量分布Mn的测定通过凝胶渗透色谱法(GPC)根据DIN55672完成。
根据ISO 6388测定1％、2％、5％或50％的水溶液在20℃的粘度。
根据ISO 1183测定密度。
根据ISO 1133测定在200℃和5kg重量的MFR。
根据ISO 527-1/-2测定拉伸模量。
静态接触角的测定通过小心地将一滴具有限定体积的蒸馏水放在聚苯乙烯片材的表面上来进行。在固/液界面和液/气界面之间形成的角度被称为静态接触角θ。在5秒钟的静止时间之后，拍摄照片并采用图像处理软件通过观察液滴的轮廓和测量如在图(图1)中所示的在具有三相线处的顶点的固体和液滴轮廓之间形成的二维角来测定静态接触角。
使用的物质：
组分B：聚乙二醇，羟值为28至39mg KOH/g，和平均分子量为3,350g/mol；
组分C：聚甘油(3)单硬脂酸酯，酸值为0至2mg KOH/g，碘值为0至2mg gI2/100g和皂化值为约135mg KOH/g；
组分D：微粉化的碳酸钙，统计平均直径为5.5μm；
组分E：滑石、mg-硅酸盐，CAS 14807-96-6，统计学平均直径为6μm；
组分P1：通用的聚苯乙烯均聚物，200℃/5kg时MFR为20至28g/10min，和拉伸模量为3000至3400MPa。
组分P2：高抗冲的、橡胶改性的聚苯乙烯，200℃/5kg时MFR为4.0至6.0g/10min，和拉伸模量为1600至2000MPa。
组分A(对比)：C12-C18-烷基磺酸钠。
在以下实施例中，除非另有指示，百分比为重量百分比，基于混合物或制品的总重量计；份数为重量份；“对比”意指对比实施例。
对比实施例1(代表EP 2 289 994 A2的教导)
将15份组分A、15份组分D、7.5份组分E和62.5份组分P1一起在双螺杆挤出机上均质化(挤出机的温度：220至230℃)。获得母料MB1。
对比实施例2
将15份组分C、15份组分D、7.5份组分E和62.5份组分P1一起在双螺杆挤出机上均质化(挤出机的温度：220至230℃)。获得母料MB2。
对比实施例4
将15份组分B、15份组分D、7.5份组分E和62.5份组分P1一起在双螺杆挤出机上均质化(挤出机的温度：220至230℃)。获得母料MB4。
实施例5
将5份组分B、10份组分C、15份组分D、7.5份组分E和62.5份组分P1一起在双螺杆挤出机上均质化(挤出机的温度：220至230℃)。获得母料MB5。
实施例7
将5份组分B、10份组分C、15份组分D、7.5份组分E、32.5份组分P1和30份组分P2一起在双螺杆挤出机上均质化(挤出机的温度：220至230℃)。获得母料MB7。
对比实施例9(代表EP 2 289 994 A2的教导)
将21份组分A、20份组分D、5.0份组分E、34份组分P1和20份组分P2一起在双螺杆挤出机上均质化(挤出机的温度：220至230℃)。获得母料MB9。
对比实施例21
将10份如对比实施例1中所述制备的母料MB1均质化并与90份组分P1在平膜挤出机(Collin)上混合。采用100rpm的转速和220-230℃的温度，获得厚度为100μm的平膜FF21。
对比实施例22
将10份如对比实施例2中所述制备的母料MB2均质化并与90份组分P1在平膜挤出机(Collin)上混合。采用100rpm的转速和220-230℃的温度，获得厚度为100μm的平膜FF22。
对比实施例24
将10份如实施例4中所述制备的母料MB4均质化并与90份组分P1在平膜挤出机(Collin)上混合。采用100rpm的转速和220-230℃的温度，获得厚度为100μm的平膜FF24。
实施例25
将10份如实施例5中所述制备的母料MB5均质化并与90份组分P1在平膜挤出机(Collin)上混合。采用100rpm的转速和220-230℃的温度，获得厚度为100μm的平膜FF25。
实施例27
将10份如实施例7中所述制备的母料MB7均质化并与90份组分P1在平膜挤出机(Collin)上混合。采用100rpm的转速和220-230℃的温度，获得厚度为100μm的平膜FF27。
对比实施例29
将7.14份如对比实施例9中所述制备的母料MB9均质化并与52.86份组分P1和40份组分P2在平膜挤出机(Collin)上混合。采用100rpm的转速和220-230℃的温度，获得厚度为100μm的平膜FF29。
表2
实施例 平膜标示 静态接触角[°]
对比实施例21 FF21 89
对比实施例22 FF22 82
对比实施例24 FF24 82
25 FF25 78
27 FF27 79
对比实施例29 FF29 89

Claims (15)

1.包含组分B、组分C、组分D、组分E和组分P的组合物Z，其中
所述组分B为聚乙二醇，
所述组分C为聚甘油酯，
所述组分D为碱土金属碳酸盐，
所述组分E为层状硅酸盐，
和所述组分P为聚苯乙烯和/或其合金。
2.权利要求1所述的组合物Z，其包含0.06至90重量％的组分B、C、D和E的总和，其中所述重量％基于所述组合物Z的总重量计。
3.权利要求1或2所述的组合物Z，其中所述组合物Z包含1.25至50重量％的组分B、C、D和E的总和，其中所述重量％基于所述组合物Z的总重量计。
4.权利要求1至3中任一项所述的组合物Z，其中所述组合物Z以0.1至10.0的组分B与组分C的重量比包含组分B和组分C。
5.权利要求1至4中任一项所述的组合物Z，其中所述组合物Z以0.3至1.0的组分B与组分C的重量比包含组分B和组分C。
6.权利要求1至5中任一项所述的组合物Z，其中所述组合物Z为母料MB且包含
0.2至20重量％的组分B，
0.4至40重量％的组分C，
0.2至20重量％的组分D，
0.1至10重量％的组分E，
10至99.1重量％的组分P，
所述重量％基于所述组合物Z的总重量计。
7.权利要求1至6中任一项所述的组合物Z，其中所述组合物Z为母料MB且包含
1.5至20重量％的组分B，
3至40重量％的组分C，
1.5至20重量％的组分D，
0.75至10重量％的组分E，
10至93.25重量％的组分P，
所述重量％基于所述组合物Z的总重量计。
8.权利要求1至5中任一项所述的组合物Z，其中所述组合物Z为配混料且包含
0.0167至1.47重量％的组分B，
0.0333至2.94重量％的组分C，
0.0167至1.47重量％的组分D，
0.00835至0.735重量％的组分E，
93.385至99.92495重量％的组分P，
所述重量％基于所述组合物Z的总重量计。
9.权利要求1至8中任一项所述的组合物Z，其中组分P为苯乙烯均聚物、烷基苯乙烯均聚物或苯乙烯共聚物。
10.权利要求9所述的组合物Z，其中所述苯乙烯共聚物为高抗冲聚苯乙烯、苯乙烯-丁二烯-苯乙烯或合成丁基橡胶。
11.权利要求1至10中任一项所述的组合物Z，其中组分C为聚甘油脂肪酸酯。
12.用于制备权利要求1至11中任一项所述的组合物Z的方法，其中将所述组分B、C、D、E和P混合在一起。
13.权利要求1至11中任一项所述的组合物Z用于制造固态非发泡的或发泡的聚苯乙烯的吸收性制品的用途。
14.固态发泡的或非发泡的聚苯乙烯的制品，其包含权利要求1至11中任一项所限定的组合物Z。
15.权利要求14所述的制品，其为膜、片材或容器，优选食品托盘。
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