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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: 2014-03-26
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]With 1,3,5-three (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid 35kg, two (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-hexadiene[(2,2,6,6-tetramethyl-4-piperidinyl)imino]} 2kg, calcium stearate 6kg and low molecular weight Add 4 kg of polyethylene wax into a high-speed mixer, mix and stir for 30 minutes at room temperature to obtain a mixture of anti-aging additives and processing aids; put the above mixture and 20 kg N, N'-dicyclohexyl-2,6-naphthalene dicarboxamide After mixing and stirring the mixer for 30 minutes, set the temperature at 120°C under the protection of nitrogen, and mix and stir each component for 30 minutes in a molten state, so that each component can be recombined through the intermolecular hydrogen bond and the complexation of functional groups. The molecules of each component are spatially arranged, the gate of the therm...

Embodiment 2

[0046] With 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene 24kg, dioctadecylmethylamine oxide 20kg, bis( Add 2,4-di-tert-butylphenol) pentaerythritol diphosphite 30kg, synthetic hydrotalcite 7kg and glyceryl monostearate 4kg into a high-speed mixer, mix and stir for 30min at normal temperature to obtain a mixture of anti-aging additives and processing aids ; Put the above mixture and 15kg N, N'-dicyclohexyl-2,6-naphthalene dicarboxamide into a thermomixer and mix and stir for 30min, set the temperature at 120°C under nitrogen protection, and make each component in a molten state Mix and stir for 30 minutes to make each component rearrange spatially through intermolecular hydrogen bonds and functional group complexation, open the gate of the thermomixer, and quickly remove the material system for cooling under nitrogen protection. , Use a pulverizer to crush the material and sieve it with a 200-mesh sieve. The sieved product is the required special additiv...

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]undeca 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-hexylenediene[(2,2 , 6,6-tetramethyl-4-piperidinyl) imino]} 5kg, zinc stearate 6kg and low-molecular-weight polyethylene wax 4kg add high-speed mixer, mix and stir 30min under normal temperature to obtain anti-aging additive and processing A mixture of additives; put the above mixture and 18kg N,N'-dicyclohexyl-2,6-naphthalene dicarboxamide into a thermo mixer and mix and stir for 30min, then set the temperature at 140°C under nitrogen protection, and make each group The components were mixed and stirred for 30 minutes in the molten state, so that each component was re-arranged in space through the hyd...

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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 additive for β-crystal random copolymerized polypropylene pipe material and its application. Background technique [0002] The crystal structure of isotactic polypropylene can form five types including 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 commercialized polypropylene is mainly of 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 heat distortion 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 performance of polypropylene is greatly improved. [0003] The commonly used polypropylene pipes at this stage include block copo...

Claims

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Application Information

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Patent Type & Authority Patents(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