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Low-temperature-resistant impact-resistant polypropylene elastomer material and preparation method thereof

A technology of impact-resistant polypropylene and elastomer materials, applied in the field of PP materials, can solve the problems of poor low temperature resistance and impact resistance, ineffective low temperature resistance and impact resistance, incompatibility, etc., to achieve good toughness and Impact resistance, avoiding the movement of free hydrogen, and improving the effect of low temperature resistance

Active Publication Date: 2021-07-20
SHANGHAI XINYIDA PLASTIC PALLET +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, traditional PP materials have poor low temperature resistance and impact resistance, and are prone to white marks. Generally, tougheners are added to improve them. Tougheners are mainly inorganic nanoparticles, inorganic rigid particles, and rubber. Among them, inorganic nanoparticles and inorganic The principle of rigid particle toughening is to use its filling effect to improve the toughness and strength of PP through the bonding force between the particle size of the filled particles and PP. Rubber toughens plastics with elastic particle dispersion structure to improve the toughness and impact strength of PP. ; Whether it is the filling effect or the dispersion structure bonding, it is not a real fusion with the PP material. After curing, it is prone to incompatibility problems, and sometimes it will separate phases. Therefore, the existing tougheners are very effective in improving the low temperature resistance of PP materials. The effect of sex and impact resistance is not obvious and unstable

Method used

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  • Low-temperature-resistant impact-resistant polypropylene elastomer material and preparation method thereof
  • Low-temperature-resistant impact-resistant polypropylene elastomer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: A preparation method of a low-temperature resistant and impact-resistant polypropylene elastomer material:

[0045] S1. Weigh 80kgPP, 10kgPE, and 24kg of compatibilizer, place them in a high-speed mixing tank, and mix and stir for 5min at a speed of 1500r / min to prepare a mixture; the compatibilizer consists of 8kgPP-G-MAH, 8kgPE-G-MAH , 8kgPOE-G-MAH composition;

[0046] S2. Put the mixture prepared in S1 into the hopper of a twin-screw extruder, melt and extrude it to pelletize at 200° C., and obtain a polypropylene elastomer material after cooling.

Embodiment 2

[0047] Example 2: A preparation method of a low-temperature resistant and impact-resistant polypropylene elastomer material:

[0048] S1. Weigh 70kgPP, 15kgPE, and 30kg compatibilizer, place them in a high-speed mixing tank, and mix and stir for 8 minutes at a speed of 1000r / min to prepare a mixture; the compatibilizer consists of 10kgPP-G-MAH, 10kgPE-G-MAH , 10kgPOE-G-MAH composition;

[0049] S2. Put the mixture prepared in S1 into a hopper of a twin-screw extruder, melt and extrude it to pelletize at 150° C., and obtain a polypropylene elastomer material after cooling.

Embodiment 3

[0050] Example 3: A preparation method of a low-temperature resistant and impact-resistant polypropylene elastomer material:

[0051] S1. Weigh 90kgPP, 5kgPE, and 15kg compatibilizer, place them in a high-speed mixing tank, and mix and stir for 3min at a speed of 2000r / min to prepare a mixture; the compatibilizer consists of 5kgPP-G-MAH, 5kgPE-G-MAH , 5kgPOE-G-MAH composition;

[0052] S2. Put the mixture prepared in S1 into the hopper of a twin-screw extruder, melt and extrude it to pelletize at 220° C., and obtain a polypropylene elastomer material after cooling.

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Abstract

The invention relates to the field of materials, and particularly discloses a low-temperature-resistant impact-resistant polypropylene elastomer material and a preparation method thereof.The polypropylene elastomer material is prepared from, by weight, 70-90 parts of PP, 5-15 parts of PE and 15-30 parts of a compatilizer, the compatilizer comprises 5-10 parts of PP-G-MAH and 5-10 parts of PE-G-MAH, and further comprises 5-10 parts of POE-G-MAH or 5-10 parts of EPDM-G-MAH and 5-10 parts of SEBS-G-MAH; the preparation method comprises the following steps: S1, weighing the PP, the PE and the compatilizer, and mixing and stirring at the rotating speed of 1000-2000r / min for 3-8min to prepare a mixture; and s2, carrying out melt extrusion granulation on the mixture prepared in S1 at 150-220 DEG C, and cooling to obtain the polypropylene elastomer material; and the method has the advantages of improving the low temperature resistance and impact resistance of the PP material.

Description

technical field [0001] This application relates to the technical field of PP materials, more specifically, it relates to a low-temperature-resistant and impact-resistant polypropylene elastomer material and a preparation method thereof. Background technique [0002] Polypropylene, referred to as PP, is a colorless, odorless, non-toxic, translucent solid substance with chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high wear-resistant processing properties, etc. Therefore, , are widely used in many fields such as machinery, automobiles, electronic appliances, construction, textiles, packaging, agriculture, forestry, fishery and food industry. [0003] However, traditional PP materials have poor low temperature resistance and impact resistance, and are prone to white marks. Generally, tougheners are added to improve them. Tougheners are mainly inorganic nanoparticles, inorganic rigid particles, and rubber. Among them, ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L51/06C08L51/04C08L51/00C08L91/00C08L5/08C08L9/00C08K5/3475C08K5/134C08K3/36
CPCC08L23/12C08K2201/011C08L2205/08C08L2201/08C08L23/06C08L51/06C08L51/04C08L51/003C08L51/006C08K5/3475C08K5/1345C08L91/00C08L5/08C08L9/00C08K3/36
Inventor 胡文龙
Owner SHANGHAI XINYIDA PLASTIC PALLET