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Method for preparing rubber-plastic compound

A mixture and plastic technology, applied in food science, plastic recycling, grain processing, etc., can solve problems such as poor product quality, environmental pollution, and prolonged contact with materials at high temperature

Inactive Publication Date: 2010-03-10
上海橡源驰晨环保科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: propose a kind of new method that prepares rubber-containing, plastic compound with thermosetting elastomer and plastics or / and thermoplastic elastomer at normal temperature with grinding, this method is suitable for preparing new plastics and elastomer or recycle Rubber and plastic composites composed of fillers are used to solve the defects of dust flying, high energy consumption, low efficiency and long-term high-temperature contact material operation in the current market method; this method is also to solve the current problem of waste plastics, especially mixed waste plastics Low production efficiency, poor product quality, serious environmental pollution and other problems that occur when the composite film and leather of paper, cloth, aluminum foil, etc. are recycled separately, so as to realize the high value and green cycle of waste plastics, especially mixed waste plastics resources use

Method used

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  • Method for preparing rubber-plastic compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] With the known pulverizer of normal temperature disc type finely crushing waste thermosetting elastomer, process a group of formula mixture as follows:

[0088] Recipe Component:\Recipe Number:

1

2

3

4

5

6

Those that pass through a 3.5mm aperture sieve will be collected by the papermaking enterprise

The paper-plastic composite film removes most of the pulp and discharges it

Discarded impurity-containing composite plastic film (water content 50%)

10

15

20

30

45

60

Tire rubber powder particles passed through a 18-mesh aperture sieve

90

85

80

70

55

40

Dry wood flour through a 100-mesh sieve

/

/

15

/

/

10

Fly ash passed through a 400-mesh sieve

/

150

/

/

/

150

Salt sludge (water content 50%) discarded by salt ...

Embodiment 2

[0096] Use the new method described in the present invention to process new plastics and thermosetting elastomers with grinding and crushing to mix and eat powder operation

[0097] A set of formulation mixtures containing plastics and thermoset elastomers is processed using a disc-type pulverizer for finely pulverizing vulcanized rubber:

[0098] Recipe Component:\Recipe Number:

1

2

PP particles passing through a 3.5mm sieve

20

50

Thermosetting EPDM vulcanized rubber particles with a tensile strength greater than 10 MPa passing through a 20-mesh sieve

80

50

Red clay powder

20

50

Mixed short-staple fiber materials of fibers and rubber powder particles discarded by reclaimed rubber and rubber powder manufacturers

5

/

Peanut shell powder passed through a 100-mesh sieve

30

30

Lubricants such as: stearic acid

1

2

Coupling agent such as: maleic...

Embodiment 3

[0107] Combination device for carrying out the novel method of the present invention

[0108] Examples are attached figure 1 As shown, it is a schematic block diagram of the combination device described in this embodiment, and 19 in the figure is the normal temperature thermosetting elastomer fine shredder equipment set in the combination device according to the present invention; in the figure 1 - waste plastics coarse and medium crushing Machine, 2-waste plastic water sorting and cleaning machine, 3-centrifugal dehydrator, 4-hot air dryer, 5-ground collection bin, which (one section) is combined to form the fine crushing unit machine for thermosetting elastomer at room temperature according to the present invention Before the equipment, add coarse and medium crushing machines that can crush plastic particles that pass through a sieve with an aperture of 1 to 5 mm, add washing and sorting of waste plastics, a centrifugal dehydrator, and hot air drying equipment to remove heav...

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Abstract

The invention provides a method for preparing a rubber-plastic compound. A composite device containing normal-temperature millstone-type elastomer fine crushing machineries is utilized to carry out crushing treatment on a mixture containing formulas of thermosetting elastomer and plastic or / and thermoplastic elastomer, and the mixture comprises the following components in weight ratio: thermosetting elastomer sieved by a sieve with the aperture of 5-40 meshes: plastic sieved by a sieve with the aperture of 1-5mm or / and thermoplastic elastomer sieved by a sieve with the aperture of 1-5 meshes:filler: other adjuvants = 40-90:60-10:0-200:0-10. The invention comprises a method, the composite device for implementing the method, and rubber-plastic compound products produced by the method, wherein a regeneration rubber-plastic compound is included. The invention not only can enable the absorb filler operation to become clean, continuous, normal-temperature and energy saving in the process of preparing new rubber-plastic composite material, but also can enable mixed waste plastic difficult to be reused by the prior art to be conveniently used for high-valued recycling.

Description

technical field [0001] The invention proposes a new method for preparing rubber-plastic composites by co-grinding thermosetting elastomers and plastics (including thermoplastic elastomers) at room temperature. This method is also suitable for grinding waste plastics and waste thermosetting elastomers together. The invention relates to a new finely crushed recycling method, which belongs to the technical category of rubber and plastic (including thermoplastic elastomer) composite material processing and recycling. technical background [0002] In the current technology of compounding new plastics and thermosetting elastomers into rubber-plastic composites, if the selected elastomer is cured vulcanized rubber, it must be crushed or plasticized first; The operation of filling thermoplastic elastomer materials into powder fillers requires the use of high-speed agglomerators or combined machines composed of open mills, internal mixers, screw extruders, etc. at 140 ° C and kneadin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K3/34C08K3/26B29B13/10B29B17/04B02C7/175B02C7/11B29B17/02
CPCY02W30/52Y02W30/62
Inventor 陈汇宏胡嘉庆
Owner 上海橡源驰晨环保科技发展有限公司
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