WO2022110669A1 - 一种聚丙烯复合材料及其制备方法与应用 - Google Patents

一种聚丙烯复合材料及其制备方法与应用 Download PDF

Info

Publication number
WO2022110669A1
WO2022110669A1 PCT/CN2021/092818 CN2021092818W WO2022110669A1 WO 2022110669 A1 WO2022110669 A1 WO 2022110669A1 CN 2021092818 W CN2021092818 W CN 2021092818W WO 2022110669 A1 WO2022110669 A1 WO 2022110669A1
Authority
WO
WIPO (PCT)
Prior art keywords
parts
polypropylene
composite material
polypropylene resin
melt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/092818
Other languages
English (en)
French (fr)
Inventor
李伟
黄险波
叶南飚
吴国峰
胡佳旭
俞飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kingfa Science and Technology Co Ltd
Original Assignee
Kingfa Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kingfa Science and Technology Co Ltd filed Critical Kingfa Science and Technology Co Ltd
Publication of WO2022110669A1 publication Critical patent/WO2022110669A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—Copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Definitions

  • the invention relates to the field of polymer material modification, in particular to a polypropylene composite material and a preparation method and application thereof.
  • the bumper is one of the largest exterior parts on the car. It is installed on the car as an independent assembly and has a great impact on the safety protection, styling effect, and aerodynamics of the vehicle.
  • Polypropylene material is widely used in automobile bumpers due to its excellent cost performance and light weight. As the single weight of the bumper is 4-5kg, the volume and weight are large, and the requirements for materials and molding processes are very high.
  • the purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a polypropylene composite material that can be used for rapid prototyping and has good appearance.
  • the technical scheme adopted in the present invention is: a polypropylene composite material, comprising the following components in parts by weight: 20-100 parts of polypropylene resin B, 0-20 parts of elastomer, and 0-20 parts of talcum powder and 0 to 2 parts of additives; the melt tension of the polypropylene resin B is 16-20mN, and the melt index of the polypropylene resin B at 230°C and 2.16kg is 20-50g/10min; the melt The tensile force was measured by a melt extensional rheometer from Yizun Technology Co., Ltd.
  • the polypropylene composite material further comprises 0-100 parts by weight of polypropylene resin A, wherein the polypropylene resin A is copolymerized polypropylene, and the melt tension of the polypropylene resin A is 16-20 mN,
  • the melt index of the polypropylene resin A at 230° C. and 2.16 kg is 60-100 g/10min.
  • the polypropylene composite material includes the following components in parts by weight: 40-60 parts of polypropylene resin A, 20-40 parts of polypropylene resin B, 10-20 parts of elastomer, 10-20 parts of talcum powder and Additives 0.5 to 2 parts.
  • the elastomer is at least one of ethylene-butene copolymer and ethylene-octene copolymer elastomer.
  • the melt index of the elastomer at 230°C and 2.16kg is 0.5-2g/10min.
  • the auxiliary agent is at least one of antioxidant, light stabilizer and lubricant.
  • the antioxidant is a hindered phenolic antioxidant and/or a phosphite antioxidant; specifically, it can be one or two or more of 1010, 1076, 3114, 168, and PEP-36 mixture;
  • the light stabilizer is a hindered amine light stabilizer; specifically, it can be one or a mixture of two or more of UV-3808PP5, LA-402XP, and LA-402AF;
  • the lubricant is a stearate lubricant; specifically, it can be one of 2818 and 3818 or a mixture of both.
  • the present invention also discloses a method for preparing the polypropylene composite material.
  • the method comprises the following steps: mixing the components uniformly and then adding them to a twin-screw extruder, melting and kneading, and extruding and pelletizing to obtain the The polypropylene composite material; wherein, the temperature of melt-kneading is 190-210° C., and the rotational speed of the screw is 450-550 rpm.
  • the invention also discloses the application of the polypropylene composite material in automobile bumpers.
  • the present invention can significantly improve the melt strength of the polypropylene material, significantly improve the surface pit phenomenon of the material under a special process, and can be well used for preparing automobile insurance with a short molding cycle. lever parts.
  • the preparation method of polypropylene composite material is as follows:
  • the components are mixed evenly and then added to a twin-screw extruder for melt-kneading.
  • the melt-kneading temperature is 190-210° C.
  • the screw speed is 450-550 rpm
  • extrusion and granulation are performed to obtain a polypropylene composite material.
  • Injection molding mold 150 ⁇ 70mm high-gloss color plate mold
  • High-gloss swatch mold size is 150 ⁇ 70 ⁇ 3mm; injection molding machine model: Borch BS80-III; injection conditions: injection temperature 200 °C in the whole area, injection pressure 45% in the whole area, holding pressure 55% in the whole area, cooling The time is 15 seconds; in order to reduce the molding cycle, the deterioration process reduces the dwell time from the conventional 20s to 10s.
  • the test method is as follows:
  • melt tension The melt extensional rheometer of Yizun Technology Co., Ltd. is used to test, and the maximum tension that the melt bears before the unstable state occurs in the extensional rheology test is limited; the specific test conditions are: The temperature of the single-screw extruder is 200°C, the screw speed of the extruder is 30rpm, the initial speed of the rotor is 60mm/min, and the acceleration of the rotor is 12mm/s;
  • Polypropylene resin A1 copolymerized polypropylene, melt tension is 18mN, melt index (230°C, 2.16kg) 100g/10min, manufacturer Total Korea;
  • Polypropylene resin B1 copolymerized polypropylene, melt tension is 18mN; melt index (230°C, 2.16kg) is 30g/10min, Basel;
  • Polypropylene resin A2 copolymerized polypropylene, melt tension is 14mN; melt index (230°C, 2.16kg) is 100g/10min, ExxonMobil;
  • Polypropylene resin B2 copolymerized polypropylene, melt tension is 14mN, melt index (230°C, 2.16kg) is 30g/10min, CNOOC Shell;
  • Elastomer A ethylene-butene copolymer, melt index (230°C, 2.16kg) of 0.5g/10min, Mitsui Chemicals;
  • Elastomer B ethylene-butene copolymer, melt index (230°C, 2.16kg) of 4g/10min, Dow Chemical;
  • Talc powder 3000 mesh, Tianyuan, Liaoning
  • Lubricant Zinc stearate lubricant, 2818, commercially available;
  • Antioxidant hindered phenolic antioxidant, 1010, commercially available
  • UV-3808PP5 hindered amine light stabilizer, UV-3808PP5, commercially available
  • Examples 1 to 7 and Comparative Examples 1 to 3 are set. All the formulas are prepared according to the above method to prepare polypropylene composite materials, and then the composite materials are injected with color plates according to the above injection molding process, which are used to characterize the pits of the materials and test the materials at the same time.
  • the composition and properties of the polypropylene composite materials in specific examples 1 to 7 and comparative examples 1 to 3 are shown in Table 1.
  • Example 2 Comparing Example 1 with Example 2, it can be seen that the melt index of the elastomer in Example 2 is not within the range of 0.5-2 g/10min; compared with Example 1, the polypropylene composite material obtained in Example 2 has many appearance pits. , the melt tension is low.
  • Example 3 Comparing Example 1 with Example 3, it can be seen that the melt tension of the polypropylene resin A in Example 3 is not in the range of 16-20 mN; more, the melt tension is low.
  • Examples 1, 4, and 5 have 40-60 parts of polypropylene resin A, 20-40 parts of polypropylene resin B, 10-20 parts of elastomer, Within the range of 10-20 parts of talc and 0.5-2 parts of auxiliary agent, Examples 6 and 7 are not within the above range, and Examples 1, 4, and 5 have few appearance pits and high melt tension.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

一种聚丙烯复合材料，包括如下重量份的成分：聚丙烯树脂B20～100份、弹性体0～20份、滑石粉0～20份和助剂0～2份；所述聚丙烯树脂B为共聚聚丙烯，所述聚丙烯树脂B的熔体拉力为16-20mN，所述聚丙烯树脂B的熔融指数为20-50g/10min。通过引入不同熔体拉力的PP树脂，可以显著提高聚丙烯材料的熔体强度，显著改善材料在特殊工艺下的表面凹坑现象，可很好地用于制备较短成型周期的汽车保险杠部件。同时，还公开了聚丙烯复合材料的制备方法与应用。

Description

一种聚丙烯复合材料及其制备方法与应用 技术领域
本发明涉及高分子材料改性领域，尤其涉及一种聚丙烯复合材料及其制备方法与应用。
背景技术
随着汽车产量及社会需求量的迅速提高，节能、环保、低成本成为当前汽车工业发展的主要目标。以质轻塑料替代金属用于汽车零部件的制造是汽车工业实现以上目标的一个重要手段。保险杠是汽车上最大的外饰件之一，作为一个独立的总成安装在汽车上，对车辆的安全防护、造型效果、空气动力性等有较大的影响。聚丙烯材料由于其优异的性价比和重量轻等特点，被广泛使用在汽车保险杠中。由于保险杠单重4～5kg，体积及重量较大，对材料及成型工艺要求很高。目前越来越多的主机厂为了提高生产效率，不断追求低的成型周期，从最开始的60～80秒逐渐降低到30～40秒。传统聚丙烯在应用于低成型周期保险杠时表面容易产生许多圆形的凹坑，极大影响保险杠外观及成品率。因此，本领域需开发一种可以用于快速成型的聚丙烯材料，用于汽车保险杠。
发明内容
基于此，本发明的目的在于克服上述现有技术的不足之处而提供一种可用于快速成型且具有良好外观的聚丙烯复合材料。
为实现上述目的，本发明所采取的技术方案为：一种聚丙烯复合材料，包括如下重量份的成分：聚丙烯树脂B 20～100份、弹性体0～20份、滑石粉0～20份和助剂0～2份；所述聚丙烯树脂B的熔体拉力为16-20mN,所述聚丙烯树脂B在230℃、2.16kg下的熔融指数为20-50g/10min；所述熔体拉力采用仪尊科技有限公司的熔体拉伸流变仪进行测试。
优选地，所述的聚丙烯复合材料，还包含0～100重量份的聚丙烯树脂A，所述聚丙烯树脂A为共聚聚丙烯，所述聚丙烯树脂A的熔体拉力为16-20mN,所 述聚丙烯树脂A在230℃、2.16kg的熔融指数为60-100g/10min。
优选地，所述的聚丙烯复合材料，包括如下重量份的成分：聚丙烯树脂A 40～60份、聚丙烯树脂B 20～40份、弹性体10～20份、滑石粉10～20份和助剂0.5～2份。
优选地，所述弹性体为乙烯-丁烯共聚物、乙烯-辛烯共聚物弹性体中的至少一种。
更优选地，所述弹性体在230℃、2.16kg下的熔融指数为0.5-2g/10min。
优选地，所述助剂为抗氧剂、光稳定剂、润滑剂中的至少一种。
更优选地，所述抗氧剂为受阻酚类抗氧剂和/或亚磷酸酯类抗氧剂；具体可以是1010、1076、3114、168、PEP-36中的一种或者两种及以上的混合物；
所述光稳定剂为受阻胺类光稳定剂；具体可以是UV-3808PP5、LA-402XP、LA-402AF中的一种或者两种及以上的混合物；
所述润滑剂为硬质酸盐类润滑剂；具体可以是2818、3818中的一种或者两种混合物。
同时，本发明还公开一种所述的聚丙烯复合材料的制备方法，所述方法为：将各成分混合均匀后加入双螺杆挤出机中，进行熔融混炼，挤出造粒，得到所述聚丙烯复合材料；其中，熔融混炼的温度为190～210℃，螺杆转速为450～550转/分。
此外，本发明还公开所述的聚丙烯复合材料在汽车保险杠中的应用。
相对于现有技术，本发明的有益效果为：
本发明通过引入不同熔体强度的PP树脂，可以显著提高聚丙烯材料的熔体强度，显著改善材料在特殊工艺下的表面凹坑现象，可很好地用于制备较短成型周期的汽车保险杠部件。
具体实施方式
为更好的说明本发明的目的、技术方案和优点，下面将结合具体实施例对 本发明作进一步说明。以下实施例只是本发明的典型例，本发明的保护范围并不局限于此。
聚丙烯复合材料的制备方法如下：
将各成分混合均匀后加入双螺杆挤出机中，进行熔融混炼，熔融混炼温度为190～210℃，螺杆转速为450～550转/分，挤出造粒，得到聚丙烯复合材料。
注塑成型模具：150×70mm的高光色板模具；
高光色板模具：尺寸为150×70×3mm；注塑机型号：博创BS80-III；注塑条件：注塑温度全区200℃，注塑压力全区45％，保压压力全区55％，冷却时间15秒；为了降低成型周期，故恶化工艺将保压时间从常规的20s降低到10s。
测试方法如下：
(1)熔体拉力：采用仪尊科技有限公司的熔体拉伸流变仪进行测试，限定在拉伸流变测试中熔体出现不稳定状态前所承受的最大拉力；具体测试条件为：单螺杆挤出机温度200℃，挤出机螺杆转速30rpm，转子起始速度60mm/min，转子加速度12mm/s；
(2)凹坑评价：凹坑及缩水用高光色板进行注塑评价；缩水采用目视定性平行对比评价，凹坑用统计数据进行评价；在特定工艺下注塑X块高光色板，其中有Y块色板有内部中空的凹坑，那么有凹坑色板比例(α)为：α＝Y/X；
实施例和对比例中用到的主要代表材料如下：
聚丙烯树脂A1：共聚聚丙烯，熔体拉力为18mN，熔融指数(230℃、2.16kg)100g/10min，厂家韩国道达尔；
聚丙烯树脂B1：共聚聚丙烯，熔体拉力为18mN；熔融指数(230℃、2.16kg)为30g/10min，巴塞尔；
聚丙烯树脂A2：共聚聚丙烯，熔体拉力为14mN；熔融指数(230℃、2.16kg)为100g/10min，埃克森美孚；
聚丙烯树脂B2：共聚聚丙烯，熔体拉力为14mN，熔融指数(230℃、2.16kg)为30g/10min，中海壳牌；
弹性体A：乙烯-丁烯共聚物，熔融指数(230℃、2.16kg)为0.5g/10min，三井化学；
弹性体B：乙烯-丁烯共聚物，熔融指数(230℃、2.16kg)为4g/10min，陶氏化学；
滑石粉：3000目，辽宁添源；
润滑剂：硬质酸锌类润滑剂，2818，市售；
抗氧剂：受阻酚类抗氧剂，1010，市售；
光稳定剂：受阻胺类光稳定剂，UV-3808PP5，市售；
本申请设置实施例1～7及对比例1～3，将所有配方按照上述方法制备聚丙烯复合材料，然后将复合材料按照上述注塑工艺注塑色板，用于表征材料凹坑情况，同时测试材料的熔体强度；具体实施例1～7及对比例1～3中聚丙烯复合材料的成分及性能如表1所示。
表1 实施例1～7及对比例1～3中聚丙烯复合材料的成分及性能
Figure PCTCN2021092818-appb-000001
从表1可以看出，与对比例1～3相比，本发明实施例1～4所得聚丙烯复合 材料的外观凹坑少，熔体拉力高；将对比例1与实施例1对比可知，对比例1中不含有本申请中的聚丙烯树脂B，其外观凹坑多，熔体拉力低。
将实施例1与实施例2对比可知，实施例2中的弹性体的熔融指数不在0.5-2g/10min范围内；与实施例1相比，实施例2所得聚丙烯复合材料的外观凹坑多，熔体拉力低。
将实施例1与实施例3对比可知，实施例3中的聚丙烯树脂A的熔体拉力不在16-20mN范围内；与实施例1相比，实施例3所得聚丙烯复合材料的外观凹坑多，熔体拉力低。
实施例1、4、5与实施例6、7对比可知，实施例1、4、5在“聚丙烯树脂A 40～60份、聚丙烯树脂B 20～40份、弹性体10～20份、滑石粉10～20份和助剂0.5～2份”范围内，实施例6、7不在上述范围内，实施例1、4、5的外观凹坑少，熔体拉力高。
最后所应当说明的是，以上实施例仅用以说明本发明的技术方案而非对本发明保护范围的限制，尽管参照较佳实施例对本发明作了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和范围。

Claims (9)

  1. 一种聚丙烯复合材料，其特征在于，包括如下重量份的成分：聚丙烯树脂B 20～100份、弹性体0～20份、滑石粉0～20份和助剂0～2份；所述聚丙烯树脂B为共聚聚丙烯，所述聚丙烯树脂B的熔体拉力为16-20mN；所述聚丙烯树脂B在230℃、2.16kg下的熔融指数为20-50g/10min。
  2. 如权利要求1所述的聚丙烯复合材料，其特征在于，还包含0～100重量份的聚丙烯树脂A，所述聚丙烯树脂A为共聚聚丙烯，所述聚丙烯树脂A的熔体拉力为16-20mN，所述聚丙烯树脂A在230℃、2.16kg下的熔融指数为60-100g/10min。
  3. 如权利要求1所述的聚丙烯复合材料，其特征在于，包括如下重量份的成分：聚丙烯树脂A40～60份、聚丙烯树脂B 20～40份、弹性体10～20份、滑石粉10～20份和助剂0.5～2份。
  4. 如权利要求1～3任一项所述的聚丙烯复合材料，其特征在于，所述弹性体为乙烯-丁烯共聚物、乙烯-辛烯共聚物弹性体中的至少一种。
  5. 如权利要求4所述的聚丙烯复合材料，其特征在于，所述弹性体在230℃、2.16kg下的熔融指数为0.5-2g/10min。
  6. 如权利要求1～3任一项所述的聚丙烯复合材料，其特征在于，所述助剂为抗氧剂、光稳定剂、润滑剂中的至少一种。
  7. 如权利要求6所述的聚丙烯复合材料，其特征在于，所述抗氧剂为受阻酚类抗氧剂和/或亚磷酸酯类抗氧剂；所述光稳定剂为受阻胺类光稳定剂；所述润滑剂为硬质酸盐类润滑剂。
  8. 一种如权利要求1～7任一项所述的聚丙烯复合材料的制备方法，其特征在于，所述方法为：将各成分混合均匀后加入双螺杆挤出机中，进行熔融混炼，挤出造粒，得到所述聚丙烯复合材料；其中，熔融混炼的温度为190～210℃，螺杆转速为450～550转/分。
  9. 如权利要求1～7任一项所述的聚丙烯复合材料在汽车保险杠中的应用。
PCT/CN2021/092818 2020-11-30 2021-05-10 一种聚丙烯复合材料及其制备方法与应用 Ceased WO2022110669A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011384230.4 2020-11-30
CN202011384230.4A CN112574513B (zh) 2020-11-30 2020-11-30 一种聚丙烯复合材料及其制备方法与应用

Publications (1)

Publication Number Publication Date
WO2022110669A1 true WO2022110669A1 (zh) 2022-06-02

Family

ID=75126592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/092818 Ceased WO2022110669A1 (zh) 2020-11-30 2021-05-10 一种聚丙烯复合材料及其制备方法与应用

Country Status (2)

Country Link
CN (1) CN112574513B (zh)
WO (1) WO2022110669A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116855014A (zh) * 2023-07-27 2023-10-10 万华化学（宁波）有限公司 一种高油漆附着力汽车薄壁保险杠材料、制备方法及其应用
CN117165001A (zh) * 2023-09-26 2023-12-05 天津金发新材料有限公司 一种聚丙烯复合材料及其制备方法和应用

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112574513B (zh) * 2020-11-30 2022-05-10 金发科技股份有限公司 一种聚丙烯复合材料及其制备方法与应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008255191A (ja) * 2007-04-03 2008-10-23 Sumitomo Chemical Co Ltd 発泡用ポリプロピレン系樹脂組成物およびそれからなる発泡成形体
CN102649854A (zh) * 2011-02-23 2012-08-29 中国科学院化学研究所 一种聚丙烯组合物及其制备方法
CN107987449A (zh) * 2017-12-15 2018-05-04 会通新材料股份有限公司 一种用于汽车保险杠的微发泡聚丙烯复合材料及其制备方法
CN108546385A (zh) * 2018-03-13 2018-09-18 上海普利特复合材料股份有限公司 一种汽车无缝气囊仪表板用高性能聚丙烯复合材料及其制备方法
CN112574513A (zh) * 2020-11-30 2021-03-30 金发科技股份有限公司 一种聚丙烯复合材料及其制备方法与应用

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008255191A (ja) * 2007-04-03 2008-10-23 Sumitomo Chemical Co Ltd 発泡用ポリプロピレン系樹脂組成物およびそれからなる発泡成形体
CN102649854A (zh) * 2011-02-23 2012-08-29 中国科学院化学研究所 一种聚丙烯组合物及其制备方法
CN107987449A (zh) * 2017-12-15 2018-05-04 会通新材料股份有限公司 一种用于汽车保险杠的微发泡聚丙烯复合材料及其制备方法
CN108546385A (zh) * 2018-03-13 2018-09-18 上海普利特复合材料股份有限公司 一种汽车无缝气囊仪表板用高性能聚丙烯复合材料及其制备方法
CN112574513A (zh) * 2020-11-30 2021-03-30 金发科技股份有限公司 一种聚丙烯复合材料及其制备方法与应用

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116855014A (zh) * 2023-07-27 2023-10-10 万华化学（宁波）有限公司 一种高油漆附着力汽车薄壁保险杠材料、制备方法及其应用
CN117165001A (zh) * 2023-09-26 2023-12-05 天津金发新材料有限公司 一种聚丙烯复合材料及其制备方法和应用

Also Published As

Publication number Publication date
CN112574513B (zh) 2022-05-10
CN112574513A (zh) 2021-03-30

Similar Documents

Publication Publication Date Title
CN101914243B (zh) 一种用于注塑具有良好外观汽车制件的聚丙烯组合物及其制备方法
WO2022110669A1 (zh) 一种聚丙烯复合材料及其制备方法与应用
CN103819817B (zh) 一种高流动高尺寸稳定性聚丙烯组合物及其制备方法
CN103937231B (zh) 一种用于挤出成型的玻纤增强尼龙复合物及其制备方法和应用
CN103102592A (zh) 一种用于汽车保险杠的改性聚丙烯材料及其制备方法
CN104292622B (zh) 一种低流痕、低熔接痕的聚丙烯组合物及其制备方法
CN110628131A (zh) 一种低收缩、低线性膨胀系数聚丙烯复合材料及制备方法
CN101659766A (zh) 低收缩可喷涂pp/ps共混物合金及其制备方法
CN105646959B (zh) 一种橡胶组合物、制备方法及其在3d打印空心轮胎中的应用
WO2021120085A1 (zh) 一种高强度轮胎硫化胶囊的制备方法
CN111849069A (zh) 一种复合橡胶热塑性弹性体及其制备方法
CN111534008B (zh) 一种抗虎皮纹聚丙烯树脂组合物及其制备方法
CN104629184A (zh) 一种含聚丁烯合金的复合材料及其制备方法
CN112552582A (zh) 一种抗虎皮纹、高耐热汽车仪表板材料及其制备方法和应用
WO2021120883A1 (zh) 一种聚丙烯组合物
CN115386166B (zh) 一种聚丙烯复合材料及制备方法和应用
CN103665570B (zh) 一种超低温韧性聚丙烯组合物及其制备方法
CN114044966B (zh) 一种抗雾化聚丙烯组合物及其制备方法和应用
CN102875949B (zh) 增韧填充母粒及其制备方法
CN101320789A (zh) 一种高韧性蓄电池壳体及制备方法
CN118852792A (zh) 一种聚丙烯复合材料及其制备方法和应用
CN111763373A (zh) 一种含有再生聚丙烯的汽车挡泥板用tpv材料及其制备方法
CN102604220B (zh) 一种高氧指数低光泽的阻燃聚丙烯组合物及其制法与应用
CN114196116B (zh) 一种高耐候耐热聚丙烯材料及其制备方法
CN114347528B (zh) 成品胎及其制备方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21896184

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21896184

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 18/10/2023)

122 Ep: pct application non-entry in european phase

Ref document number: 21896184

Country of ref document: EP

Kind code of ref document: A1