PPC (poly(propylene carbonate)), PBAT (poly(butylene adipate/terephthalate)) and PBS (poly(butylene succinate)) blend and preparation method

A blend and cold mixing technology, which is applied in the field of PPC, PBAT and PBS blends and preparation, can solve problems such as difficulties in the application of pure PPC, affecting storage and transportation, and sticking of PPC, achieving improved mechanical properties, Raw materials are simple and easy to obtain, and the effect of common equipment
CN101735588AInactive Publication Date: 2010-06-16INNER MONGOLIA MENG XI HIGH TECH GRP CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
INNER MONGOLIA MENG XI HIGH TECH GRP CO LTD
Publication Date
2010-06-16
Estimated Expiration
Not applicable Β· inactive patent
Patent Text Reader

Abstract

The invention relates to PPC (poly(propylene carbonate)), PBAT (poly(butylene adipate / terephthalate)) and PBS (poly(butylene succinate)) blend and a preparation method. The blend is formed by PPC, PBAT, PBS, a blocking agent, lubricant and modified light calcium carbonate, and the preparation method comprises the following steps of: cooling-mixing the PPC, the PBAT, the PBS, the blocking agent, the lubricant and the modified light calcium carbonate in a high-speed mixer under a condition with the temperature not higher than 35 DEG C, and extruding a cooling-mixed material by a screw extruder for pelleting, wherein the temperature for pelleting is not higher than 200 DEG C. The invention has the advantages that the method has simple process, common equipment, and suitability for industrialization production; meanwhile, raw materials used in the method are simple and easy to obtain and can be easily bought in a market; and the blend processed out by the method has greatly increased temperature of sticky clotting higher than that of a pure PPC and greatly improved mechanical performance of the blend larger than that of the pure PPC, broadens the application range of the pure PPC and is completely biodegraded.
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Description

Technical field:

[0001] The invention relates to a blend of PPC, PBAT and PBS 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 production of carb...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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