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Full-degradation high-molecular compound and preparation method

A fully degradable, polymer technology, applied in the field of polymer material processing, can solve problems such as the influence of mechanical properties that have not been introduced

Inactive Publication Date: 2014-05-07
严兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Patent CN100383192C proposes a biodegradable flame-retardant composite composition and its production method, and introduces the decomposition of polylactic acid and the compounding of aluminum hydroxide, magnesium hydroxide, ammonium polyphosphate, silicon dioxide, low-melting glass, and talc. flame retardant properties, but did not describe its impact on mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 50kg of ammonium polyphosphate, 25kg of pentaerythritol, 25kg of melamine and 50kg of PVA into the mixing pot and mix evenly, then add it to a single-screw or twin-screw extruder for extrusion and granulation. The granulation temperature is controlled at 90-120°C.

Embodiment 2

[0023] Add 50kg of ammonium polyphosphate, 25kg of pentaerythritol, 25kg of melamine and 100kg of water into the reactor, add 10kg of sodium acrylate, 100g of benzoyl peroxide, then stir at high speed, and raise the temperature to 90-100°C, react for 3-5 hours, dry and pulverize .

Embodiment 3

[0025] Add 20kg of flax fiber into the high-speed mixer, when the temperature rises to 95-100°C, add 300g of silane coupling agent, cool down to 40-50°C, then add 400g of lubricant EBS and 200g of stearic acid, the flame retardant in Example 1 15kg, 5kg talcum powder, 60kg polylactic acid, 100g antioxidant 1010, 200g antioxidant mixed evenly, extruded with twin-screw to granulate, extruder temperature is about 180-220℃.

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PUM

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Abstract

The invention relates to the field of high-molecular material processing and particularly relates to a flame-retardant full-degradation high-molecular compound and a preparation method. The flame-retardant full-degradation high-molecular compound and the preparation method have the advantages that polylactic acid is enhanced and modified by utilizing vegetable fiber, and a halogen-free flame retardant is added to improve the flame-retardant performance, so that the flame-retardant full-degradation high-molecular compound with good performance is obtained.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to a flame-retardant fully degradable polymer compound and a preparation method thereof. Background technique [0002] The development of polymer materials has advanced by leaps and bounds in recent decades and has been widely used in all walks of life. However, with the popularization of its application, "plastic" pollution is also becoming more and more serious. With the increase of plastic production, cost reduction, a large number of commodity packaging bags, liquid containers and agricultural film, etc., people no longer reuse them, but use them as consumer goods that are discarded as garbage. Since polymer materials cannot be degraded naturally, various After these plastic products are discarded by people, they remain in nature for a long time. Waste agricultural film and plastic bags left in the farmland for a long time will not only affect the air permeability of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L97/02C08K13/02C08K3/32C08K5/053C08K5/3492C08K3/34
Inventor 严兵
Owner 严兵
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