Special assistant SYNOX M4229 for beta-crystal-form random copolymerization polypropylene tube materials and application thereof

A technology of random copolymerization and polypropylene tubes, which is applied in the field of materials, can solve problems such as the complexity of the preparation process of additives, and achieve the effects of facilitating industrial production, saving production management costs, and increasing heat distortion temperature

Active Publication Date: 2012-08-15
DALIAN XINGHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the additive preparation process is complex

Method used

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  • Special assistant SYNOX M4229 for beta-crystal-form random copolymerization polypropylene tube materials and application thereof
  • Special assistant SYNOX M4229 for beta-crystal-form random copolymerization polypropylene tube materials and application thereof
  • Special assistant SYNOX M4229 for beta-crystal-form random copolymerization polypropylene tube materials and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid 35kg, bis(2,4-di-tert-butylphenol) pentaerythritol diphosphite 33kg, poly{ [6-[(1,1,3,3-tetramethylbutyl)amino]]-1,3,5-triazine-2,4-[(2,2,6,6,-tetramethyl -Piperidinyl)imino]-1,6-hexamethylene[(2,2,6,6-tetramethyl-4-piperidinyl)imino]} 2kg, calcium stearate 6kg and low molecular weight Add 4 kg of polyethylene wax to the high-speed mixer, mix and stir at room temperature for 30 minutes to obtain a mixture of anti-aging additives and processing aids; put the above mixture and 20 kg of N,N'-dicyclohexyl-2,6-naphthalene dicarboxamide into the heat After mixing and stirring for 30 minutes in the mixer, set the temperature at 120°C under the protection of nitrogen, and mix and stir the components for 30 minutes in a molten state, so that each component passes through the intermolecular hydrogen bond and the complexation of functional groups, and re The molecules of each component are arranged in space, the gate o...

Embodiment 2

[0046] 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene 24kg, dioctadecylmethylamine oxide 20kg, bis( 2,4-Di-tert-butylphenol) pentaerythritol diphosphite 30kg, synthetic hydrotalcite 7kg and glyceryl monostearate 4kg are added to the high-speed mixer, mixed and stirred at room temperature for 30 minutes to obtain a mixture of anti-aging additives and processing additives ; Put the above mixture and 15kg N,N'-dicyclohexyl-2,6-naphthalenediformamide into the hot mixer and mix and stir for 30min, and set the temperature at 120℃ under the protection of nitrogen, so that the components are in a molten state Mix and stir for 30 minutes, make each component pass the hydrogen bond between molecules and the complexation of functional groups, re-arrange the molecules of each component, open the gate of the hot mixer, and quickly remove the material system under the protection of nitrogen to cool , Use a pulverizer to crush the materials and screen them with a 200-mes...

Embodiment 3

[0049] 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H, 5H)-Triketone 37kg, 3,9-bis(2,4-dicumylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro [5.5] eleven Alkane 15kg, bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate 15kg, poly{[6-[(1,1,3,3-tetramethylbutyl)amino] ]-1,3,5-Triazine-2,4-[(2,2,6,6,-tetramethyl-piperidinyl)imino]-1,6-hexanediene[(2,2 , 6,6-Tetramethyl-4-piperidinyl)imino]}5kg, zinc stearate 6kg and low molecular polyethylene wax 4kg are added to the high-speed mixer, mixed and stirred at room temperature for 30min to obtain the anti-aging additives and processing A mixture of additives; put the above mixture and 18kg of N,N'-dicyclohexyl-2,6-naphthalene dicarboxamide into a hot mixer, mix and stir for 30 minutes, and set the temperature at 140°C under the protection of nitrogen to make each group In the molten state, mix and stir for 30 minutes, make each component pass through the intermolecular hydrogen bond and...

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Abstract

The invention discloses a special assistant SYNOX M4229 for beta-crystal-form random copolymerization polypropylene tube materials and application thereof. The special assistant is prepared from the following components in parts by weight: 50-85 parts of anti-aging assistant, 5-20 parts of processing assistant and 15-50 parts of beta-nucleating agent, wherein the anti-aging assistant is prepared from a hindered phenol antioxidant, an amine oxide antioxidant, a phosphite ester antioxidant and a hindered amine stabilizer in a mass ratio of 1:(0-2):(0.3-2.5):(0-0.3); and the processing assistant is prepared from an acid acceptor and a lubricant in a mass ratio of 1:(0.2-1.5); and the beta-nucleating agent is any one or mixture of two of amide compounds. The special assistant disclosed by the invention enhances the thermal-deformation temperature, shock resistance, service life and anti-aging degree of the tube material; the beta-crystal content of the tube material is higher than 90%; and the oxidation induction period of the tube material is more than 90 minutes.

Description

Technical field [0001] The invention relates to the field of materials, in particular to a special auxiliary agent for β crystal type random copolymer polypropylene tube material and its application. Background technique [0002] The crystal structure of isotactic polypropylene can form five kinds of α, β, γ, δ and pseudo-hexagonal states. Among them, the α crystal form is the monoclinic crystal form, which is the most stable. Currently, the commercial polypropylene mainly has this crystal form, but its toughness is poor, which is also the reason for the poor impact resistance of PP. The β crystal form is a hexagonal crystal system, which has good impact resistance and high thermal deformation temperature, which just makes up for the shortcomings of the α crystal system. Therefore, the content of β crystal form in polypropylene is increased, and the properties of polypropylene are greatly improved. [0003] The commonly used polypropylene pipes at this stage are block copolymer p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08K5/00C08K5/13C08K5/32C08K5/524C08K5/20C08K5/134C08K5/3492C08K5/526C08K5/527C08K5/5333C08K5/3435C08K5/098C08K13/02C08K3/26
Inventor 任国辉任春江
Owner DALIAN XINGHUI CHEM
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