Blend of carbon dioxide-epoxypropane co-polymer and polycaprolactone and poly butylene succinate and preparation method

A technology of propylene oxide and carbon dioxide, which is used in the field of providing blends of PPC, PCL and PBS and its preparation, can solve the problems of downstream manufacturers' application impact, hindering market promotion, easy agglomeration during storage and transportation, and achieve product performance. Excellent, suitable for industrial production, the effect of ordinary equipment

Inactive Publication Date: 2009-06-17
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

[0003] Carbon dioxide-propylene oxide copolymer (PPC) is an amorphous polymer with a glass transition temperature of about 35°C. When the temperature is above 35°C, its storage and It is easy to agglomerate during transportation, and it will affect the application of downstream manufacturers and hinder its market promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take by weighing 2000 grams of PPC (manufactured by 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), 20 grams of stearic acid grams, 50 grams of PCL, and 50 grams of PBS were added to a high-speed mixer respectively, and stirred for 5 to 10 minutes at a temperature not exceeding 35°C. According to the equipment, the speed of the mixer could be 500 to 1500 rpm; Cold mixing, extruding and granulating with a single-screw extruder or a twin-screw extruder, the heating temperature of each zone is set according to the extrusion situation, and the maximum does not exceed 170°C. The obtained pellets were measured with a differential scanning calorimeter (DSC), and the glass transition temperature was found to be 51.2°C.

Embodiment 2

[0017] Take by weighing PPC (with embodiment 1) 2000 grams, maleic anhydride 30 grams, lipophilic modified light calcium carbonate (particle size is 1250 order) 50 grams, epoxy soybean oil 10 grams, PCL is 100 grams, PBS is 100 grams, cold mixing and extrusion granulation are the same as in Example 1. The obtained pellets were measured with a differential scanning calorimeter (DSC), and the glass transition temperature was 57.05°C.

Embodiment 3

[0019] 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 160 grams, PBS is 40 grams, cold mix Extrusion granulation situation is the same as embodiment 1. The obtained pellets were measured with a differential scanning calorimeter (DSC), and the glass transition temperature was found to be 57.3°C.

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Abstract

The invention provides a blend of a PPC, a PCL and a PBS and the preparation method thereof. The blend comprises PPC, PCL, PBS, an end-capping reagent, a lubricant and a modified precipitated calcium carbonate. The preparation method is to cool mix the substances in a homogenizer according to a certain percentage in a temperature no higher than 35 DEG C and then the cool mixed materials are extrusion granulated in a screw extruder and the temperature for extrusion granulation should not be higher than 170 DEG C. The blend gained from the invention is totally biologically resolved and the comprehensive performances are superior to a single polymer. The raw materials are easy to gain, the equipment is ordinary and the processing technique is simple, therefore the blend is very suitable for industrial production.

Description

technical field [0001] The invention provides a blend of PPC, PCL 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 causes environmental pollution, 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. It is the goal pursued by entrepreneurs and ch...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/04C08K9/04C08K5/09C08K5/1515B29B9/02B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 刘埃林汪英杰赵全胜张光军陈有业蒙昊王红霞黄云生牛丽刚海山徐晓燕
Owner INNER MONGOLIA MENG XI HIGH TECH GRP CO LTD
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