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Mixture of PPC (polyenyl phosphophatidyl choline), PHBV (Polyhydroxybutyrate Valerate), PLA (Poly lactic Acid), PBS (Polybutadiene Styrene), PBAT (polybutylene adipate terephthalate) and PCL (polycaprolactone) and preparation method thereof

A technology of blends and mixtures, applied in the field of polymer processing, can solve problems such as difficulties in the application of pure PPC, affecting storage and transportation, and PPC sticking blocks, etc., to achieve excellent mechanical properties, simple and easy-to-obtain raw materials, and common equipment Effect

Active Publication Date: 2010-10-06
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 ° C), 20 grams of maleic anhydride, 100 grams of modified light calcium carbonate, 20 grams of stearic acid, and 600 grams of PHBV, respectively Add it to a high-speed mixer, and 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 granulate with a twin-screw extruder, and heat it in the highest heating zone The temperature was 164°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 2000 grams of PPC (same as Example 1), 30 grams of maleic anhydride, 100 grams of modified light calcium carbonate, 20 grams of epoxy soybean oil, and 1000 grams of PHBV, join respectively in the high-speed mixer, at cold mixing temperature Stir for 5 minutes at 20°C, and the speed of the mixer can be 500 rpm; release the cold mixture, extrude and granulate with a single-screw extruder, and the heating temperature in the highest heating zone is 166°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 2000 grams of PPC (with embodiment 1), 30 grams of maleic anhydride, 50 grams of lipophilic modified light calcium carbonate (particle size is 1250 orders), 10 grams of epoxy soybean oil, PHBV is 200 grams, and PCL is 400 grams, respectively join in the high-speed mixer, stir 6 minutes under the situation of 5 ℃ of cold mixing temperature, the rotating speed of mixer can be 1000 revs / min; The heating temperature in the highest heating zone is 166°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 mixture of PPC (polyenyl phosphophatidyl choline), PHBV (Polyhydroxybutyrate Valerate), PLA (Poly lactic Acid), PBS (Polybutadiene Styrene), PBAT (polybutylene adipate terephthalate) and PCL (polycaprolactone) and a preparation method thereof. The mixture comprises the PPC, the PHBV, the PLA, the PBS, the PBAT, the PCL, an end-capping agent, a lubricating agent and modified light calcium carbonate. The preparation method comprises the following steps of: carrying out cold mixing on the PPC, the PHBV, the PLA, the PBS, the PBAT, the PCL, the end-capping agent, the lubricating agent and the modified light calcium carbonate in a high-speed stirrer at a temperature not more than 35 DEG C; and extruding and granulating cold mixing materials by using a screw extruder at a temperature not more than 200 DEG C. The invention has the advantages that the method has simple process and common equipment and is very suitable for industrialized production; in addition, raw materials used in the method are simple and easy to obtain and buy in the market, and the mixture processed by the method is greatly enhanced in tacky agglomeration temperature compared with pure PPC and superior to the pure PPC in mechanical property and can be completely biodegraded.

Description

Technical field: [0001] The invention relates to a blend of PPC, PHBV, PLA, PBS, PBAT and PCL 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 pr...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/04C08L67/02C08K9/04C08K3/26C08K5/09C08K5/1515B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 刘埃林汪英杰张光军陈有业蒙昊王红霞武占存徐晓燕张彩云李云飞海山黄云生李成军牛丽刚高振勇白景峰
Owner INNER MONGOLIA MENG XI HIGH TECH GRP CO LTD
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