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Compositely modified polypropylene and its prepn process

A technology for composite modification and polypropylene, which is applied in the field of preparation of composite modified polypropylene using inorganic nanomaterials, elastomers, and β-crystal nucleating agents. It can solve the problems of limited improvement and achieve high impact strength and high intensity effect

Inactive Publication Date: 2007-11-07
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] After solving the dispersion problem of inorganic nanoparticles in PP, although the strength and toughness of polypropylene molding materials can be improved, the extent of improvement is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Composition of raw material parts by weight:

[0020] Polypropylene 100 parts

[0021] Oleic acid modified nano calcium carbonate (D 50 80nm) 3 parts

[0022] POE elastomer (octene-ethylene copolymer) 3 parts

[0023] Shanxi Research Institute of Chemical Industry TMB-5 arylamide β-nucleating agent 0.3 parts

[0024] PP grafted maleic anhydride 1 part

[0025] Antioxidant 1010 0.5 parts

[0026] (1) Take by weighing PP10kg, oleic acid modified nano-calcium carbonate 3kg, POE elastomer 3kg, TMB-5 aromatic amide class β crystal nucleating agent 300g, PP grafted maleic anhydride 1kg, 1010 antioxidant 500g, in Mix in a high-speed mixer for 10 minutes, and then extrude and granulate in a twin-screw extruder. The temperature of the extruder is 190-210° C. to obtain a masterbatch.

[0027] (2) Weigh 90kg of PP and 17.8kg of masterbatch and mix in a high-speed mixer for 10 minutes, then add the mixture to a single or twin-screw extruder for extrusion, the temperature of t...

Embodiment 2

[0029] Composition of raw material parts by weight:

[0030] Polypropylene 100 parts

[0031] Oleic acid modified nano silica (D 50 50nm) 1 part

[0032] POE elastomer (octene-ethylene copolymer) 3 parts

[0033] Shanxi Research Institute of Chemical Industry TMB-5 arylamide β-nucleating agent 0.3 parts

[0034] PP grafted maleic anhydride 1 part

[0035] Antioxidant 1010 0.5 parts

[0036] (1) Take by weighing PP10kg, oleic acid modified nano silicon dioxide 1kg, POE elastomer 3kg, crystal nucleating agent 300g, PP grafted maleic anhydride 1kg, 1010 antioxidant 500g, mix 10 in the high-speed mixer minutes, and then extrude and granulate in a twin-screw extruder, and the temperature of the extruder is 190-210° C. to obtain a masterbatch.

[0037] (2) Weigh 90kg of PP and 15.8kg of masterbatch and mix in a high-speed mixer for 10 minutes, then add the mixture to a single or twin-screw extruder for extrusion, the temperature of the extruder is 190-210°C, after cooling and ...

Embodiment 3

[0039] Composition of raw material parts by weight:

[0040] Polypropylene 100 parts

[0041] Oleic acid modified nano silica (D 50 50nm) 1 part

[0042] EPDM 3 parts

[0043] Shanxi Research Institute of Chemical Industry TMB-5 arylamide β-nucleating agent 0.3 parts

[0044] PP grafted maleic anhydride 1 part

[0045]Antioxidant 1010 0.5 parts

[0046] (1) Weigh PP10kg, oleic acid-modified nano silica 1kg, EPDM 3kg, β crystal nucleating agent 300g, PP grafted maleic anhydride 1kg, 1010 antioxidant 500g, and mix in a high-speed mixer for 10 minutes , and then extrude and granulate in a twin-screw extruder, and the temperature of the extruder is 190-210° C. to obtain a masterbatch.

[0047] (2) Weigh 90kg of PP and 15.8kg of masterbatch and mix in a high-speed mixer for 10 minutes, then add the mixture to a single or twin-screw extruder for extrusion, the temperature of the extruder is 190-210°C, after cooling and shaping , traction, and cutting to obtain composite modif...

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Abstract

The composite modified polypropylene material has the raw material composition comprising polypropylene 100 weight portions, nanometer inorganic material 0.1-10 weight portions, elastomer 1-10 weight portions, beta-crystal nucleator 0.1-0.5 weight portions, antioxidant 0-1.5 weight portions, and compatibilizing agent 0.2-3 weight portions. The composite modified polypropylene material possesses raied tensile strength, high impact strength and high heat resistance.

Description

technical field [0001] The invention relates to a compound modified polypropylene (PP), in particular to a method for preparing compound modified polypropylene by using inorganic nanometer material, elastomer and beta crystal nucleating agent. Background technique [0002] Polypropylene molding material is a structural material made of polypropylene (PP) as the main raw material, adding various additives, and extruding. PP has light weight, low price, odorless, non-toxic, corrosion resistance, high temperature resistance and good physical and mechanical properties, and has outstanding stress crack resistance and wear resistance. It has been widely used in construction, chemical industry, household appliances, Vehicle manufacturing, medical equipment, instrumentation and many other fields. However, ordinary polypropylene molding materials have disadvantages such as poor impact resistance and low temperature brittleness, which affect their further development and application,...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K5/20B29C47/40C08L23/16C08L53/02C08L23/20C08K3/26C08K3/36C08K3/22
Inventor 申屠宝卿李继鹏翁志学
Owner ZHEJIANG UNIV
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