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Blend of PPC, PBAT, PCL, PBS and PLA and preparation method thereof

A blend and cold mixing technology, applied in the field of polymer processing, can solve the problems of pure PPC application difficulties, affecting storage and transportation, and PPC sticking blocks, etc., to achieve the effect of strong toughness, excellent mechanical properties, and easy processing

Inactive Publication Date: 2011-11-09
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 (produced by Inner Mongolia Mengxi High-tech Group Company, glass transition temperature is 35 ℃), 20 grams of maleic anhydride, 20 grams of lipophilic modified light calcium carbonate (particle size is 800 mesh), stearic acid 2 grams, 50 grams of PLA, 50 grams of PCL, 50 grams of PBS, 50 grams of PBAT, add to a high-speed mixer, stir for 5 minutes at a cold mixing temperature of 0 ° C, the speed of the mixer can be 1500 rpm / min; release the cold mixture, extrude and granulate with a single-screw extruder, and the heating temperature in the highest heating zone is 173°C. Use the obtained pellets to test the sticky temperature of the pellets in the oven, and use the obtained pellets to prepare samples in the injection machine according to the requirements of GB / T 17037-1997, and then according to GB / T 1040-2006 According to the requirements of GB / T 2918-1998, the tensile performance test is carried out, and the test results are recorded.

Embodiment 2

[0018] Take by weighing PPC (with embodiment 1) 2000 grams, maleic anhydride 30 grams, lipophilic modified light calcium carbonate (particle size is 1250 orders) 50 grams, epoxy soybean oil 10 grams, PCL is 200 grams, PLA is 200 grams, PBS is 200 grams, PBAT is 200 grams, join in the high-speed mixer, under the situation that the cold mixing temperature is 5 ℃, stir for 6 minutes, the rotating speed of the mixer can be 1000 rev / min; The screw extruder is extruded and granulated, and the heating temperature in the highest heating zone is 175°C. The sticky starting temperature and tensile properties were tested with the obtained pellets, and the test results were recorded (same as in Example 1).

Embodiment 3

[0020] Take by weighing PPC (with embodiment 1) 2000 grams, maleic anhydride 20 grams, light calcium carbonate (particle size is 1250 order) 100 grams, stearic acid 20 grams, PCL is 100 grams, PLA is 500 grams, PBS is 500 grams, PBAT is 500 grams, join in the high-speed mixer, under the situation that the cold mixing temperature is 10 ℃, stir for 10 minutes, the rotating speed of the mixer can be 800 rev / min; Out of granulation, the heating temperature in the highest heating zone is 176°C. The sticky starting temperature and tensile properties were tested with the obtained pellets, and the test results were recorded (same as in Example 1).

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Abstract

The invention relates to a blend of PPC, PBAT, PCL, PBS and PLA and a preparation method thereof. The blend consists of PPC, PBAT, PCL, PBS, PLA, an end-capping reagent, a lubricating agent and modified precipitated calcium carbonate. The preparation method comprises the following steps of: carrying out cold mixing on the PPC, the PBAT, the PCL, the PBS, the PLA, the end-capping reagent, the lubricating agent and the modified precipitated calcium carbonate in a high-speed stirrer at temperature not above 35 DEG C; and extruding and granulating cold mixed materials by a screw extruder, whereinthe temperature of extruding and granulating is not more than 200 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; the temperature of pastiness caking blocks of the blend processed by the method is greatly improved in comparison with pure PPC and the mechanical property of the blend is superior to that of the pure PPC; and the blend widens the application range of the pure PPC and can be completely biodegraded.

Description

Technical field: [0001] The invention relates to a blend of PPC, PBAT, PCL, PBS and PLA and a preparation method, belonging to the field of polymer processing. Background technique: [0002] Environmental pollution is one of the urgent problems facing society today. Carbon dioxide is a waste 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 for 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 non-toxic, odorless, colorless solid with excellent barrier properties, and the copolymer has the characteristics of complete biodegradation, which can replace ordinary plastics to solve the "white pollution" problem, so it has Double environmental protection effect. Realizing the industrialized producti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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黄云生海山李成军李云飞张彩云
Owner INNER MONGOLIA MENG XI HIGH TECH GRP CO LTD
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