Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

In-situ compatibilization polyolefin/polystyrene alloy and preparation method and application thereof

An in-situ compatibilization and polystyrene technology, which is applied in the field of thermoplastic modification, can solve the problems of limited application and achieve the effect of reducing production cost and good comprehensive performance

Active Publication Date: 2012-08-22
KINGFA SCI & TECH CO LTD +2
View PDF2 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, expensive reagents or structurally specific copolymers are usually selected for the introduction of reactive functional groups.
Although its dosage is very small compared with non-reactive compatibilizers, it still limits its application in industrial production to a certain extent.

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

[0036] An in-situ compatibilized PO / PS alloy, the preparation raw material of which is composed of the following components by mass percentage:

[0037] Homopolymer polypropylene resin (MI=3): 53.6%

[0038] General purpose polystyrene (MI=8): 13.4%

[0039] Low density polyethylene (MI=8): 10%

[0040] Initiating Compatibilizer Mother Solution: 2.6%

[0041] 1250 mesh talc: 20%

[0042] Antioxidant (1010 / 168=1:1; weight ratio): 0.2%

[0043] Ethylenebisstearamide: 0.2%;

[0044] The preparation method is as follows: the polyolefin, polystyrene and the compatibilizing initiation mother liquor are mixed uniformly, and then processing aids are added and mixed to obtain a premix; the premix is ​​added to a twin-screw extruder, and the polyolefin and In-situ compatibilization of styrene occurs in the process of blending and extrusion, and PO / PS alloys are obtained after melt extrusion at 190-230 °C. The properties of this alloy are shown in Table 1.

[0045] The used compatib...

Embodiment 2

[0047] An in-situ compatibilized PO / PS alloy, the preparation raw material of which is composed of the following components by mass percentage:

[0048] Copolymerized polypropylene resin (MI=6): 46.9%

[0049] General purpose polystyrene (MI=8): 20.1%

[0050] Linear low density polyethylene (MI=2): 10%

[0051] Initiating Compatibilizer Mother Solution: 2.6%

[0052] Talc (1250 mesh / 3000 mesh = 1:1; weight ratio): 20%

[0053] Antioxidant (1790 / 168=1:1; weight ratio): 0.2%

[0054] Ethylenebisstearamide (EBS): 0.2%;

[0055] The preparation method is the same as that in Example 1, and the relevant properties of the obtained alloy are shown in Table 1-2.

[0056] The used compatibilization initiating mother liquor is 20kg 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexyne, 80kg triallyl isocyanurate (TAIC), 100kg O-W02 (O-W02 is a kind of paraffin oil, purchased from Foshan Daqing Linyuan Chemical Co., Ltd.) was added to a 400L reactor equipped with an electric stirrer, and wa...

Embodiment 3

[0058] An in-situ compatibilized PO / PS alloy, the preparation raw material of which is composed of the following components by mass percentage:

[0059] Copolymerized polypropylene resin (MI=6): 46.9%

[0060] High impact polystyrene (MI=8): 20.1%

[0061] Linear low density polyethylene (MI=2): 8%

[0062] Initiating Compatibilizer Mother Solution: 2.6%

[0063] Calcium Carbonate: 22%

[0064] Antioxidant (1010 / 168=1:1; weight ratio): 0.2%

[0065] Zinc stearate: 0.2%;

[0066] The preparation method is the same as that in Example 1, and the relevant properties of the obtained alloy are shown in Table 1-2.

[0067] The used compatibilizing initiating mother liquor is a kind of 20kg dicumyl peroxide, 20kg triallyl isocyanurate (TAIC), 160kg O-W02 (O-W02 is a kind of paraffin oil, purchased from Foshan City Daqing Linyuan Chemical Co., Ltd.) was added into a 400L reaction kettle equipped with an electric stirrer, and stirred and mixed for 5 minutes at room temperature and...

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
modulusaaaaaaaaaa
shrinkageaaaaaaaaaa
Login to View More

Abstract

The invention discloses an in-situ compatibilization PO / PS (polyolefin / polystyrene) alloy and a preparation method and application thereof. The alloy is prepared by 45-65% of polyolefin, 10-30% of polystyrene, 2-5% of compatibilization initiation mother liquor and 20-25% of processing agent, and the compatibilization initiation mother liquor is obtained by dissolving crosslinking agent and crosslinking agent auxiliaries to oily carrier., wherein the crosslinking agent is at least one of 2, 5-dimethyl-2, 5-di (tertiary butyl peroxide) hexine, 2, 5-dimethyl-2, 5-di (tertiary butyl peroxide) hexane or dicumyl peroxide, and the crosslinking agent auxiliaries is at least one of liquid polybutadiene, prussic acid ester type substances, isocyanate substances or acrylate substances. Compared withthe dynamic sulfuration in-situ compatibilization method and the common compatibilization method, the preparation of the in-situ compatibilization PO / PS alloy is capable of effectively reducing production cost of the PO / PS alloy, the PO / PS alloy prepared has lower molding shrinkage rate, higher modulus and excellent overall performance and can be used as substitutes for acrylonitrile butadiene styrene partially.

Description

technical field [0001] The invention belongs to the field of thermoplastic plastic modification, and particularly relates to an in-situ compatibilized PO / PS alloy with high performance and low shrinkage, and a preparation method and application thereof. Background technique [0002] Polyolefin (PO) general-purpose plastics, such as PP, HDPE, LDPE, LLDPE, etc., have excellent comprehensive properties, good chemical stability, good molding performance and low price; but it also has poor strength, mold It has the disadvantages of low quantity, low hardness and large molding shrinkage. Compared with PO, PS has higher hardness and lower shrinkage rate, and has excellent printability, but PS has poor resistance to environmental stress cracking, toughness and solvent resistance. In order to obtain materials with excellent comprehensive properties, people have carried out modification research on PO and PS, trying to prepare plastic alloys that integrate the excellent properties of...

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 Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L23/06C08L23/08C08L23/16C08L25/06C08L51/00C08L47/00C08K5/14C08K5/3492C08K5/101C08K3/26C08K3/34C08K3/30
Inventor 叶林铭肖鹏叶南飚陈大华陶四平阳范文吴博
Owner KINGFA SCI & TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com