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Styrene-acrylic emulsion grafted polypropylene composite material as well as preparation method and application thereof

A technology of styrene-acrylic emulsion and composite materials, which is applied in the field of polymer materials, can solve the problems of lack of polypropylene composite materials, etc., and achieve the effects of excellent reflective performance, enhanced reflective brightness, and improved use

Pending Publication Date: 2022-03-25
广州仕天材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, the prior art still lacks a polypropylene composite material with excellent reflective properties

Method used

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  • Styrene-acrylic emulsion grafted polypropylene composite material as well as preparation method and application thereof
  • Styrene-acrylic emulsion grafted polypropylene composite material as well as preparation method and application thereof

Examples

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preparation example Construction

[0034] The preparation method of the HDPE cross-linked masterbatch: HDPE is cross-linked under the action of the cross-linking initiator DCP (blended according to the ratio of 1000:1), and passed through a twin-screw extruder (process conditions: temperature 190-230°C , host speed 300-500rpm) extrusion, granulation, made of HDPE cross-linked masterbatch.

[0035] 2. Prepare barium sulfate masterbatch. The precipitated barium sulfate powder and the copolymerized polypropylene are extruded and granulated through an internal mixer. Among them, the precipitated barium sulfate powder is ZC-3000A and copolymerized polypropylene (melt index: 25-35g / 10min), both of which are added in a ratio of 4:1, and a certain amount of lubricant and antioxidant are added, passed through the internal mixer Mix and extrude to make barium sulfate masterbatch.

[0036] 3. Preparation of styrene-acrylic emulsion grafted polypropylene.

[0037] The styrene-acrylic emulsion is SD-588 nano-styrene-acry...

Embodiment 1

[0041] A polypropylene composite material grafted with styrene-acrylic emulsion, prepared by the following method:

[0042] Measure block copolymer PP K9930 35KG, HDPE cross-linking masterbatch 15KG, short glass fiber T435N 20KG, self-made barium sulfate masterbatch 25KG, self-made styrene-acrylic emulsion grafted PP compatibilizer 5KG, lubricant silicone masterbatch 0.5KG, Light Stabilizer Hindered Amine Light Stabilizer V703 0.2KG, Antioxidant 1010 0.3KG, Sorbitol Nucleating Agent 0.5KG, Masterbatch E1122 1KG.

[0043] Stir the raw materials for 10-15 minutes; then extrude, cool, dry and granulate in a twin-screw extruder (extrusion conditions: temperature 230°C, host speed 500rpm).

[0044] The difference between embodiment 2-3 and embodiment 1 is that the ratio of the mass of polypropylene, polyethylene cross-linked master batch, glass fiber, barium sulfate master batch, initiator, styrene-acrylic emulsion grafted polypropylene is different, The details are shown in Table...

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Abstract

The invention belongs to the field of high polymer materials, and particularly relates to a styrene-acrylic emulsion grafted polypropylene composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing polypropylene, polyethylene crosslinking master batch, glass fiber, barium sulfate master batch, an initiator, styrene-acrylic emulsion grafted polypropylene and a functional additive, melting and crosslinking at 190-230 DEG C, and extruding to obtain the polypropylene composite material. The styrene-acrylic emulsion grafted polypropylene with an amphiphilic structure is used as a compatilizer, the polypropylene, the polyethylene cross-linked master batch, the glass fiber, the barium sulfate master batch, the initiator, the styrene-acrylic emulsion grafted polypropylene and the functional additive are melted and cross-linked, and all the components cooperate with one another, so that the prepared composite material is good in mechanical property and high in mechanical property; the glossiness of a conventional PP material is improved, glass fibers are prevented from floating outwards, the reflection brightness of the surface of a part is enhanced, the surface of an injection molded part is attractive, and the PP material is applied to automobile lamp bases, lampshade shells and other products.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polypropylene composite material grafted with styrene-acrylic emulsion, a preparation method and application thereof. Background technique [0002] The supporting parts (lamp base, shell) of automobile lamps need to have good reflective performance and service strength. Usually, the surface of the injection molded part made of glass fiber reinforced PP material is prone to floating fibers, resulting in rough surface, diffuse reflection, and matte, which affects the performance of the part. Graft modification is an important way to functionalize polypropylene (PP) and broaden its application fields. The small molecular monomers used for grafting PP mainly include some unsaturated acids and their derivatives, such as maleic anhydride (MAH), acrylic acid (AA), glycidyl methacrylate (GMA), methacrylic acid (MA) , methylene succinic acid (itaconic acid), long-chain uns...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L23/06C08L87/00C08K7/14C08K3/30
CPCC08L53/00C08K2003/3045C08L2207/062C08K2201/003C08K2201/004C08L23/06C08L87/005C08K7/14C08K3/30
Inventor 倪世茂陶鹏王志鹏易亦华李敬玉
Owner 广州仕天材料科技有限公司
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