Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation process of polypropylene mixture alloy for rotationally molding

A rotomolding and polypropylene technology, which is used in the field of preparing polypropylene blends for rotomolding

Active Publication Date: 2009-09-30
房华江 +1
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the latest research of science and technology, there is no such report in China

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of polypropylene produced by Qilu Petrochemical Company is 6801 by weighing 1000g, the toughening agent chlorosulfonated polyethylene weighs 400g, and the compatibilizer propylene-maleic anhydride graft (grafting rate 85%) weighs 1000g. Take 75g, heat stabilizer trioctyl borate weighs 3g, antioxidant 1,3,5-trimethyl-2,4,6-tri(3,5-di-tert-butyl-4-hydroxybenzyl ) benzene (i.e. antioxidant 330) weighed 2g, light stabilizer 2,2-thiobis(4-tert-octylphenol) n-butylamine nickel (i.e. light stabilizer 1084) weighed 3g, stearic acid weighed Take 10g, add the above-mentioned substances into a high-speed kneader, the speed of the kneader is 600r / min, the temperature is 60°C, the materials are mixed in the kneader for 6min and then transferred to the hopper of the twin-screw extruder. Take by weighing cross-linking agent dicumyl peroxide (DCP) 5g simultaneously, auxiliary cross-linking agent divinylbenzene (DVP) 5g, above-mentioned two kinds of materials are dissolved in 300...

Embodiment 2

[0019] Change the amount of the toughening agent in Example 1 to 500g, and other implementations are the same as in Example 1. The test results are: melt index: 12g / 10min, tensile yield strength: 20Mpa, flexural modulus of elasticity: 825Mpa, cantilever Beam impact strength (23°C): 610KJ / m 2 , Hardness: 55R, heat distortion temperature (0.44Mpa): 115°C, good formability during rotational molding.

Embodiment 3

[0021] The brand that Qilu Petrochemical Company produces is 6801 polypropylene 1000g, toughening agent chlorosulfonated polyethylene takes 100g, compatibilizer propylene-maleic anhydride graft (grafting rate 85%) takes 100g, Heat stabilizer trioctyl borate weighs 2g, antioxidant 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene ( That is antioxidant 330) takes by weighing 2g, light stabilizer 2,2-thiobis(4-tert-octylphenol) n-butylamine nickel (i.e. light stabilizer 1084) takes by weighing 5g, stearic acid takes by weighing 15g, Put the above into a high-speed kneader, the speed of the kneader is 700r / min, the temperature is 62°C, and the materials are mixed in the kneader for 10min and then transferred to the hopper of the twin-screw extruder. Take by weighing cross-linking agent dicumyl peroxide (DCP) 10g simultaneously, auxiliary cross-linking agent divinylbenzene (DVP) 9g, above-mentioned two kinds of materials are dissolved in 350g acetone, slowly flow...

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
Login to View More

PUM

PropertyMeasurementUnit
melt flow indexaaaaaaaaaa
tensile yield strengthaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The preparation process of polypropylene mixture alloy for roll molding includes the following steps: feeding polypropylene, flexibilizer, compatibilizer, heat stabilizer, antioxidant and light stabilizer in certain weight proportion into a reacting extruder; adding cross-linking agent and cross-linking assistant; reacting the materials and extruding; and palletizing. The polypropylene mixture alloy is applied in roll molding plastic product.

Description

(1) Technical field [0001] The invention relates to a preparation method of a polypropylene blend alloy for rotational molding, in particular to a polypropylene blend alloy used for rotational molding, with the addition of a toughening agent, a compatibilizer, a crosslinking agent and Auxiliaries such as stabilizers are prepared through chemical reactions to form blended alloys. (2) Background technology [0002] At present, in plastic molding, rotational molding accounts for a small proportion compared with injection molding, extrusion, and blow molding. It is none other than the extra-large special-shaped parts. Therefore, at present, when the development of other moldings in the world is slowing down, only rotational molding is still growing at a high speed of 10%-15% every year. The domestic rotomolding industry is far behind the world's advanced level, but in recent years, users have gradually recognized rotomolding products and developed rapidly. [0003] According ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K5/55B29C47/40B29C47/92B29B9/12C08L51/06C08K5/14C08K5/01B29C48/92B29C48/40
CPCB29C2947/92704B29C2947/9259B29C48/92B29C2948/92704B29C2948/9259B29C48/40
Inventor 房华江孙绍灿
Owner 房华江