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Blend of PPC, PBAT and PCL and preparation method thereof

A technology of blending and cold mixing, applied in the field of blending and preparation of PPC, PBAT and PCL, can solve the problems of difficult application of pure PPC, affecting storage and transportation, PPC forming agglomerates, etc., and achieves improved mechanical properties, The raw materials are simple and easy to obtain, and the effect of the equipment is ordinary

Inactive Publication Date: 2010-06-09
INNER MONGOLIA MENG XI HIGH TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the temperature is above Tg, PPC will form a cohesive block, which affects its storage and transportation; when the temperature is below Tg, PPC is in a glassy state and is brittle, so the application of pure PPC is very difficult.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Weigh 2000 grams of PPC (manufactured by Mengxi High-tech Group, with a glass transition temperature of 35°C), 20 grams of maleic anhydride, 20 grams of lipophilic modified light calcium carbonate (particle size 800 mesh), and 2 stearic acid Gram, PCL is 100 grams, and PBAT is 100 grams. Add them to a high-speed mixer. Stir for 5 minutes at a cold mixing temperature of 0°C. The rotation speed of the mixer can be 1500 revolutions per minute. The screw extruder is used for extruding and pelletizing, and the highest heating zone heating temperature is 170°C. Use the obtained pellets to test the temperature at which the pellets begin to stick in an oven. At the same time, use the obtained pellets to prepare samples in the injection machine according to the requirements of GB / T17037-1997, and then press GB / T 1040-2006 and GB / T 2918-1998 requires tensile performance testing and recording test results.

Embodiment 2

[0018] Weigh 2000 grams of PPC (same as Example 1), 30 grams of maleic anhydride, 50 grams of lipophilic modified light calcium carbonate (particle size of 1250 mesh), 10 grams of epoxy soybean oil, 200 grams of PCL, and PBAT 400 grams were added to a high-speed mixer, and stirred for 6 minutes at a cold mixing temperature of 5°C. The rotation speed of the mixer can be 1000 revolutions per minute; the cold mixture is discharged and granulated by a twin-screw extruder. The highest heating zone heating temperature is 171℃. The obtained pellets were used to test the temperature and tensile properties at the beginning of stickiness, and the test results were recorded (same as Example 1).

Embodiment 3

[0020] Weigh 2000 grams of PPC (same as Example 1), 20 grams of maleic anhydride, 100 grams of light calcium carbonate (particle size of 1250 mesh), 20 grams of stearic acid, 100 grams of PCL, and 500 grams of PBAT. In the high-speed mixer, stir for 10 minutes at a cold mixing temperature of 10°C, the speed of the mixer can be 800 rpm; release the cold mixture, extrude and pelletize with a twin-screw extruder, the highest heating zone heating temperature It is 172°C. The obtained pellets were used to test the temperature and tensile properties at the beginning of stickiness, and the test results were recorded (same as Example 1).

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Abstract

The invention relates to a blend of PPC, PBAT and PCL and a preparation method thereof. The blend consists of PPC, PBAT, PCL, an end-capping reagent, a lubricating agent and modified precipitated calcium carbonate, wherein the mass ratio of the summation of the PCL and the PBAT to the PPC is 10-100:100 and the proportion of each component of the PCL and the PBAT to the summation of the PCL and the PBAT is not less than 5 percent in the mass ratio. The preparation method comprises the following steps of: carrying out cold mixing on the PPC, the PCL, the PBAT, the end-capping reagent, the lubricating agent and the modified precipitated calcium carbonate in a high-speed stirrer at the temperature not above 35 DEG C; and extruding and granulating cold mixed materials by a screw extruder, wherein the temperature of extruding and granulating is not more than 170 DEG C. With simple process method and common equipment, the invention is especially suitable for industrial production; meanwhile, the used materials are simple and easily obtained and can also be purchased in the market; and the granule performance of the blend processed by the method is superior to that of pure PPC.

Description

Technical field: [0001] The invention relates to a blend of PPC, PBAT and PCL and a preparation method thereof, belonging to the field of polymer processing. Background technique: [0002] Environmental pollution is one of the urgent problems facing society today. Carbon dioxide is an exhaust gas produced in many industrial fields. It is discharged into the atmosphere, which not only pollutes the environment, but also wastes carbon resources. One of the raw materials of carbon dioxide-propylene oxide copolymer is carbon dioxide, which is copolymerized with carbon dioxide and propylene oxide. The reaction can fix carbon dioxide; at the same time, the obtained copolymer is a colorless solid with non-toxic, odorless and excellent barrier properties, and the copolymer has the characteristics of complete biodegradation, which can replace ordinary plastics to solve the "white pollution" problem. Double environmental protection function. Entrepreneurs and chemical engineers pursue the...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02C08L67/04C08K13/06C08K9/04C08K3/26C08K5/09C08K5/1515B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 刘埃林汪英杰张光军陈有业高振勇蒙昊王红霞武占存徐晓燕牛丽刚海山李成军白景峰
Owner INNER MONGOLIA MENG XI HIGH TECH GRP CO LTD
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