CN104277476A

CN104277476A - Method for preparing rigidity modified plastic granules

Info

Publication number: CN104277476A
Application number: CN201410471717.4A
Authority: CN
Inventors: 张鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-09-17
Filing date: 2014-09-17
Publication date: 2015-01-14

Abstract

The invention discloses a method for preparing rigidity modified plastic granules. The method comprises the following steps: (A) cleaning wastes: putting plastic wastes and thermal modified liquid-crystal copolyester PHB/PET into a pickling tank, soaking for 2 days, then, fishing out and air-drying; (B) crushing the air-dried wastes, heating to melt the wastes, adding a PPgMAH-1330 material, polyether modified polysiloxane, PPgMAH, silicone oil, paraffin, an antioxidant and antimony trioxide, and enabling the raw material to be viscous; (C) carrying out double-roller smelting at the temperature of 178+/-2 DEG C, carrying out plastication for 3 minutes, carrying out mulling for 5-7 minutes, extruding the viscous raw material obtained in the step (B), so as to form strips, arranging a cutter in front of the extruder, cutting the strips once every 1mm, so as to form small strips, and enabling the cut small strips to fall onto a water-cooled conveying belt, wherein the temperature of a single-screw extruder is 180 DEG C, 190 DEG C or 205 DEG C; (D) cooling the small strips by the water-cooled conveying belt during conveying, and bagging until the small strips are conveyed to the tail end, thereby obtaining the rigidity modified plastic granules. The method is simple in preparation, convenient in use and high in waste utilization ratio.

Description

A kind of manufacture method of plastic grain of rigidity modification

Technical field

The present invention relates to plastic raw materials technical field.Particularly relate to a kind of manufacture method of plastic grain of rigidity modification.

Background technology

In daily life, use various plastics, these plastics, after discarding, are not easily degraded, are arbitrarily abandoned generation pollution problem, so the regeneration for these discarded plastics is the technical issues that need to address.At present, comprise the application of a series of plastics such as polyethylene, polypropylene, polyvinyl chloride, polystyrene and polyester, throughout all respects of industrial and agricultural production and people's daily life.But along with extensive, a large amount of application of plastics casing plastics, various plastic waste and discarded plastics also produce in a large number, and these plastic waste are difficult to degraded under physical environment, can only process by burning or burying.But, when burning, a lot of obnoxious flavoures such as hydrogenchloride can be produced due to high-temp combustion, great harm caused to environment.And bury in process, the toxic substance in plastics can ooze out, and causes secondary pollution, affects the utility value in soil.Therefore, need to adopt new technique to the manufacture method of the process and regeneration that obtain plastic waste.

Summary of the invention:

The object of the invention is to, the problem of plastic reclaimed underutilization in a kind of prior art is provided, provide a kind of proportioning simple, easy to use, the manufacture method of the plastic grain of a kind of rigidity modification that waste utilization rate is high.

For solving the problems of the technologies described above, the invention provides a kind of plastic grain of rigidity modification, wherein, comprising following component:

Plastic waste 80-120 part, heat modification liquid crystal copolyester PHB/PET20-40 part, PPgMAH-1330 expects 10-20 part, Siloxane-Oxyalkylene Copolymers 5-10 part, PPgMAH3-8 part, silicone oil 1-3 part, paraffin 0.5-1 part, antioxidant 0.5-1 part, antimonous oxide 0.5-1 part.

Or, comprise following component: plastic waste 80-100 part, heat modification liquid crystal copolyester PHB/PET20-30 part, PPgMAH-1330 expects 10-15 part, Siloxane-Oxyalkylene Copolymers 5-8 part, PPgMAH3-7 part, silicone oil 1-2 part, paraffin 0.5-0.8 part, antioxidant 0.5-0.8 part, antimonous oxide 0.5-0.8 part.

Or, comprise following component: plastic waste 100-120 part, heat modification liquid crystal copolyester PHB/PET30-40 part, PPgMAH-1330 expects 15-20 part, Siloxane-Oxyalkylene Copolymers 8-10 part, PPgMAH5-8 part, silicone oil 2-3 part, paraffin 0.8-1 part, antioxidant 0.8-1 part, antimonous oxide 0.8-1 part.

The preparation method of above-mentioned materials

The cleaning of A, waste material: plastic waste and heat modification liquid crystal copolyester PHB/PET are put in pickling tub and soak 2 days, then pull out, dry.

B, the fertilizer pulverizing of will dry, after melting of heating, add PPgMAH-1330 material, Siloxane-Oxyalkylene Copolymers, PPgMAH, silicone oil, paraffin, antioxidant, antimonous oxide, makes it become thick,

C, two roller refine, and temperature (178 ± 2) DEG C, adds the 3min that plasticates, and mix 5 ~ 7min; Single screw extrusion temperature 180 DEG C, 190 DEG C 205 DEG C; , raw material thick in step B is extruded slivering, and forcing machine front arranges cutting knife, and every 1mm cutting once, is little strip after cutting and drops on water-cooled travelling belt,

The cooling of little bar given by D, water-cooled travelling belt in transmitting procedure, packs to obtain the plastic grain particle of rigidity modification to end.

The transport degree of described water-cooled travelling belt is 8-10 rice

Advantage of the present invention is: the problem of plastic reclaimed underutilization in prior art, by plastics fertilizer and heat modification liquid crystal copolyester PHB/PET mixture, by antimonous oxide and paraffin acting in conjunction, obtain new reworked material, the simple use plastic waste that utilization ratio is more traditional improves 15.6%, tensile strength 38MPa; Elongation 80%; Flexural strength 82MPa; Bending elastic modulus 23GPa.

Embodiment:

Example 1:

Plastic waste 80 parts, heat modification liquid crystal copolyester PHB/PET20 part, PPgMAH-1330 expects 10 parts, Siloxane-Oxyalkylene Copolymers 5 parts, PPgMAH3 part, silicone oil 1 part, 0.5 part, paraffin, antioxidant 0.5 part, antimonous oxide 0.5 part.

Example 2

Plastic waste 100 parts, heat modification liquid crystal copolyester PHB/PET30 part, PPgMAH-1330 expects 15 parts, Siloxane-Oxyalkylene Copolymers 8 parts, PPgMAH7 part, silicone oil 2 parts, 0.8 part, paraffin, antioxidant 0.8 part, antimonous oxide 0.8 part.

Example 3

Plastic waste 120 parts, heat modification liquid crystal copolyester PHB/PET40 part, PPgMAH-1330 expects 20 parts, Siloxane-Oxyalkylene Copolymers 10 parts, PPgMAH8 part, silicone oil 3 parts, 1 part, paraffin, antioxidant 1 part, antimonous oxide 1 part.

The preparation method of above-mentioned materials

The cleaning of waste material: plastic waste and heat modification liquid crystal copolyester PHB/PET are put in pickling tub and soak 2 days, then pull out, dry.

The fertilizer dried is pulverized, after melting of heating, adds PPgMAH-1330 material, Siloxane-Oxyalkylene Copolymers, PPgMAH, silicone oil, paraffin, antioxidant, antimonous oxide, makes it become thick, two roller refines, and temperature (178 ± 2) DEG C, adds the 3min that plasticates, and mix 5 ~ 7min; Single screw extrusion temperature 180 DEG C, 190 DEG C 205 DEG C; ,

Raw material thick in step B is extruded slivering, and forcing machine front arranges cutting knife, and every 1mm cutting once, is little strip after cutting and drops on water-cooled travelling belt,

The cooling of little bar given by water-cooled travelling belt in transmitting procedure, packs to obtain the plastic grain of rigidity modification to end.

Claims

1. a manufacture method for the plastic grain of rigidity modification, is characterized in that, comprises the steps:

The cleaning of A, waste material: plastic waste and heat modification liquid crystal copolyester PHB/PET are put in pickling tub and soak 2 days, then pull out, dry;

C, two roller refine, and temperature 178 ± 2 DEG C, adds the 3min that plasticates, and mix 5 ~ 7min; Single screw extrusion temperature 180 DEG C, 190 DEG C 205 DEG C; Raw material thick in step B is extruded slivering, and forcing machine front arranges cutting knife, and every 1mm cutting once, is little strip after cutting and drops on water-cooled travelling belt,

The cooling of little bar given by D, water-cooled travelling belt in transmitting procedure, packs to obtain the plastic grain particle of rigidity modification to end;

The transport degree of described water-cooled travelling belt is 8-10 rice.