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Propylene copolymer microcellular foam materials and preparation method thereof

A technology of microcellular foaming material and propylene copolymer, which is applied in the field of propylene copolymer microcellular foaming material and its preparation, can solve the problems of high cost, high price and high equipment requirements, and achieves low cost, light weight, high melting point and high melting point. The effect of high body strength

Active Publication Date: 2017-09-26
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price of high-melt-strength polypropylene resin and the use of flammable foaming agents, the equipment requirements are high, so the cost of polypropylene foam materials is high, which limits its production and application

Method used

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  • Propylene copolymer microcellular foam materials and preparation method thereof
  • Propylene copolymer microcellular foam materials and preparation method thereof
  • Propylene copolymer microcellular foam materials and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Ultra-light propylene copolymer foam material

[0032] 1. Formula: 100 parts of propylene copolymer, of which, propylene-ethylene-1-butene terpolymer (the molar content of propylene in the copolymer is 64%, the molar content of ethylene in the copolymer is 12%, 1-butene The molar content of alkene in the copolymer is 24%).

[0033] 2. Process:

[0034]1).Put the propylene-ethylene-1-butene terpolymer powder into the twin-screw extruder to extrude and pelletize. Propylene-ethylene-1-butene terpolymer particles were obtained.

[0035] 2). Put the particles obtained in the above step 1 into a high-pressure reactor. The temperature of the reactor is 140°C, and carbon dioxide gas is introduced at a pressure of 16Mpa. When the carbon dioxide is saturated in the polymer particles for 2 hours, the pressure is released to obtain a foam material, and then put this primary foaming material into another high-pressure reaction kettle, the temperature of the reaction kettle is 145...

Embodiment 2

[0040] Antistatic Propylene Copolymer Foam

[0041] 1. Formulation:

[0042] 100 parts of propylene copolymer, 5 parts of CPE as a toughening agent, 1.5 parts of graphene as a filler, 5 parts of polyethylene oxide as an antistatic agent, and 2 parts of a silane coupling agent as a coupling agent.

[0043] Wherein, the propylene copolymer is a propylene-1-butene copolymer (the molar content of 1-butene in the copolymer is 19%).

[0044] 2. Process:

[0045] 1). Weigh the propylene-1-butene copolymer powder, toughening agent, filler, antistatic agent and coupling agent in proportion, add it to the high-speed mixer according to the proportion and mix it for 20 minutes, and then put it into the barrel at a temperature of Extruded by twin-screw extruder at 160℃~210℃, water cooled, pelletized and dried.

[0046] 2) Pass the pellets obtained above through an injection molding machine to obtain a plate by injection molding. Wherein the injection molding machine temperature is betw...

Embodiment 3

[0051] Flame Retardant Propylene Copolymer Foaming Material

[0052] 1. Formulation:

[0053] 100 parts of propylene copolymer, 5 parts of EPDM as toughening agent, 10 parts of calcium carbonate as filler, 30 parts of magnesium hydroxide as flame retardant, 20 parts of aluminum hydroxide, 15 parts of intumescent flame retardant DTPB, and coupling agent as 3 parts of silane coupling agent.

[0054] Wherein, the propylene copolymer is a propylene-1-pentene copolymer (the molar content of 1-pentene in the copolymer is 13%).

[0055] 2. Process:

[0056] 1). Weigh the propylene-1-pentene copolymer powder, toughening agent EPDM, filler, flame retardant, and coupling agent, add them into the high-speed mixer according to the proportion and mix them for 20 minutes, and then put them into the barrel at a temperature of 160 Extrude twice with twin-screw extruder at ℃~210℃, then dry and set aside.

[0057] 2) Pass the pellets obtained above through an injection molding machine to ob...

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Abstract

The invention provides propylene copolymer microcellular foam materials and a preparation method thereof. The preparation method includes: blending propylene copolymer which is binary copolymer of propylene and 1-butene or alpha-olefin or propylene-ethylene-1-butene ternary copolymer with 0-50 parts of toughening agent, 0-100 parts of filler, 0-80 parts of conductive filler, 0-100 parts of reinforcing agent, 0-80 parts of flame retardant, 0-20 parts of antistatic agent and 0-3 parts of coupling agent, and performing intermittent or continuous physical foaming to obtain the microcellular foam materials of different functions. The prepared propylene copolymer foam materials which are environment-friendly and compression-resistant buffer thermal-insulation materials are excellent in seismic performance, energy absorption performance, heat resistance and oil resistance, lightweight, good in adhesiveness and printing and dyeing performance, low in cost, short in cycle, controllable in density, widely applicable to fields such as cars, buildings, food packaging materials and household appliance packaging, and the like.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a propylene copolymer microporous foam material and a preparation method thereof. Background technique [0002] Foamed plastic has the advantages of light weight, heat insulation, cushioning, insulation, and high specific strength, and has been widely used in automobiles, construction, food packaging materials, and household appliance packaging. The traditional types of foamed plastics mainly include polyurethane foamed plastics, polystyrene foamed plastics and polyethylene foamed plastics. There are isocyanate residues that are harmful to the human body during the foaming process of polyurethane foam, and the foamed material cannot be recycled. Hydrochlorofluorocarbon compounds or butane are usually used in the polystyrene (PS) foaming process, which has adverse effects on the environment. The waste of expanded polystyrene products is bulky and contains benzene, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/28C08L71/02C08L23/16C08L51/00C08L51/06C08L23/08C08K3/04C08K13/02C08K3/26C08K3/22C08K7/14C08J9/12B29C47/92B29C45/78B29C45/77B29C45/76B29C48/92
CPCC08J9/122C08L23/14B29C45/76B29C45/77B29C45/78B29C48/92B29C2945/76605B29C2945/76551B29C2945/76531B29C2945/76498B29C2948/92704B29C2948/92514C08J2203/06C08J2323/14C08J2423/28C08J2423/16C08J2451/00C08J2451/06C08L2205/03C08L2203/14C08L2201/08C08L2201/06C08K2201/001C08L23/286C08L71/02C08K3/04C08L23/16C08K13/02C08K2003/265C08K2003/2224C08K2003/2227C08L51/006C08K7/14C08L51/06C08L23/0815
Inventor 张振秀姜秀波王一鸣
Owner QINGDAO UNIV OF SCI & TECH
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