Biology base air source and flame retardant polyolefin compound formed by biology base air source

A bio-based, polyolefin technology, applied in the field of flame retardant polyolefin compounds, can solve problems such as unsolved problems, achieve the effects of light mechanical properties, good thermal stability, and improved flame retardant properties

Active Publication Date: 2017-05-31
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Biology base air source and flame retardant polyolefin compound formed by biology base air source
  • Biology base air source and flame retardant polyolefin compound formed by biology base air source

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Embodiment 1

[0022] Firstly, pre-treat the base. The method is as follows: immerse the base in a 1% weight solution of tetrabutyl titanate (isopropanol as the solvent, 2.5 times the amount of the base), treat it for 2h, dry and set aside . (The bases used in the formulas of the examples are all pretreated)

[0023] 800g polypropylene, 180g ammonium polyphosphate / pentaerythritol / pretreated base C (APP / PER / C) flame retardant (where APP: PER: C=3:1:1), 10g montmorillonite, 5g Stearic acid, 5g [β-(3,5-di-tert-butyl-4-hydroxy)phenylpropionic acid] pentaerythritol ester. Use a high-speed mixer to mix uniformly, extrude the obtained mixture in a screw extruder at 170-190°C, and obtain a flame-retardant polypropylene composite through injection molding and cooling. The flame-retardant properties of the flame-retardant polypropylene material: LOI is 32.0%, and it can pass the UL94V-0 level test. The residual carbon after combustion is tested by SEM and compared with the sample without bases. See fig...

Embodiment 2

[0025] Firstly, pre-treat the base. The method is as follows: immerse the base in a 1% weight solution of tetrabutyl titanate (isopropanol as the solvent, 2.5 times the amount of the base), treat it for 2h, dry and set aside .

[0026] 800g polypropylene, 180g ammonium polyphosphate / dipentaerythritol / pretreated base C (APP / DPER / C) flame retardant (where APP: DPER: C=2:1:1), 10g molecular sieve, 5g hard Calcium fatty acid, 5g tris(2,4-di-tert-butylphenyl) phosphite. Use a high-speed mixer to mix uniformly, extrude the obtained mixture in a screw extruder at 170-190°C, and obtain a flame-retardant polypropylene composite through injection molding and cooling. The flame-retardant properties of the flame-retardant polypropylene material: LOI is 32.0%, and it can pass the UL94V-0 level test.

Embodiment 3

[0028] Firstly, the base is pretreated, the method is as follows: the base is immersed in a 2% by weight aminopropyltriethoxysilane solution (solvent ethanol: water = 9:1, the amount is 2.5 times the base) 3h, dry and set aside.

[0029] 800g polypropylene, 180g ammonium polyphosphate / dipentaerythritol / pretreated base U (APP / DPER / U) flame retardant (where APP: DPER: U = 2:1:1), 10g hydrotalcite, 5g Magnesium stearate, 5g [β-(3,5-di-tert-butyl-4-hydroxy)phenylpropionic acid] pentaerythritol ester. Use a high-speed mixer to mix uniformly, extrude the obtained mixture in a screw extruder at 170-190°C, and obtain a flame-retardant polypropylene composite through injection molding and cooling. The flame-retardant properties of the flame-retardant polypropylene material: LOI is 31.6%, and it can pass the UL94V-0 level test.

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Abstract

The invention discloses a biology base air source and a flame retardant polyolefin compound formed by the biology base air source. The biology base air source is nitrogenous base subjected to surface treatment by a coupling agent, wherein the nitrogenous base includes A, G, T, C, U and A-T, G-C and A-U. The flame retardant polyolefin compound comprises polyolefin, a flame retardant, a synergist, a lubricant and an antioxidant; the a flame retardant is formed by mixing an acid source, a carbon source and the biology base air source. The flame retardant polyolefin compound has the following characteristics that the flame retardant effect is good; the addition quantity of the flame retardant is small; the efficiency is high; the cost is low; the advantages of good mechanical property and light weight of polyolefin are maintained; the product heat stability is good; the flame retardant and the synergist are matched with polyolefin processing and pyrolysis temperature; no decomposition or equipment corrosion exists in the processing process; the acid source, the carbon source and the air source achieve a synergistic effect; after the combustion, a compact expansion carbon layer is formed to protect a lower layer base body; the flame retardant performance of the compound is obviously improved; the compound can pass through UL94V-0 level; melting dripping resistant performance is realized.

Description

Technical field [0001] The invention belongs to the technical field of polymer materials, and specifically relates to a bio-based gas source and a flame-retardant polyolefin composite composed of it. Background technique [0002] Because of its excellent comprehensive performance and high cost performance, polyolefin has become the most versatile and versatile synthetic resin with the largest output. However, due to its own structure, polyolefins are often very flammable, so there are potential safety hazards during use. Since the advent of polyolefins, this problem has plagued users. In order to improve the safety of polyolefin use, it must be flame-retardant modification. [0003] Adding flame retardants to polyolefins is a relatively easy method to achieve industrialization, and it is also the mainstream method in the current market. The flame retardants currently used include halogen flame retardants, inorganic flame retardants and intumescent flame retardants. However, eac...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L3/02C08K13/06C08K9/04C08K3/32C08K5/053C08K5/3462C08K5/09C08K5/134C08K7/26C08K5/098C08K5/526C08K9/06C08K3/34C08K5/52C08K7/00
Inventor 李娟王志敬
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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