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Glass fiber reinforced polypropylene compound material and preparation method thereof

A technology of glass fiber and composite material, applied in the field of glass fiber reinforced polypropylene composite material and its preparation, can solve the problems of reducing the service life of the material, increasing the cost of the product, not being resistant to oil, etc., and achieving improved tensile strength and high heat resistance. , The effect of preventing bending deformation

Active Publication Date: 2012-12-05
ECOVACS ROBOTICS (SUZHOU ) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The blending of styrene and polypropylene in CN1315465A produces an alloy with a sea-island structure. Styrene resins are not oil-resistant. In places where lubricating oil is in contact, although the content of styrene resins is not high, it will also drastically reduce the use of materials. The impact of life and heat resistance is not as great as that of corrosion resistance; at the same time, the price of styrene resin is higher than that of polypropylene, which also increases the cost of the product; in general, the modification principles of the two technologies are different

Method used

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  • Glass fiber reinforced polypropylene compound material and preparation method thereof
  • Glass fiber reinforced polypropylene compound material and preparation method thereof

Examples

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Embodiment 1

[0041] This embodiment provides a glass fiber reinforced polypropylene composite material, its raw material composition and dosage refer to Table 1, wherein: the copolymerized polypropylene I adopts PP AR564 (purchased from sumitomo), and the copolymerized polypropylene II adopts PP M1600 (purchased from Korea Hyundai ). The diameter of the glass fiber is 8-17 microns (model ERS200-13-T635B, purchased from Taishan Glass Fiber Co., Ltd.).

[0042] Compatibilizer: homopolypropylene grafted maleic anhydride (PP-g-MAH) (purchased from ExxonMobil Chemical), semi-crystalline POE grafted maleic anhydride (POE-g-MAH) (purchased from Egypt ExxonMobil Chemical).

[0043] The preparation method of glass fiber reinforced polypropylene composite material is as follows: Weigh the material according to the number of components in Table 1, mix it through a mixer, add it to a twin-screw extruder, add glass fibers from the fiber port, extrude and granulate, and make A glass fiber reinforced p...

Embodiment 2～3

[0049] Examples 2-3 respectively provide glass fiber reinforced polypropylene composite materials according to the present invention, whose main raw material composition is shown in Table 1, and a lubricant whose weight is about 0.1% of the total weight of the raw materials listed in the table is also added. A glass fiber reinforced polypropylene composite material was prepared in the same manner as in Example 1. The performance data of the obtained composite materials are shown in Table 1.

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Abstract

The invention relates to a glass fiber reinforced polypropylene compound material and a preparation method thereof. The glass fiber reinforced polypropylene compound material comprises the following raw materials: 20-40% of copolymerized polypropylene I, 20-40% of copolymerized polypropylene II, 5-25% of compatibility agent, 0.2-1% of coupling agent, 1-30% of glass fiber, 1-20% of sericite and 0.1-0.4% of antioxidant, wherein the copolymerized polypropylene I is high-impact copolymerized polypropylene with the impact strength of more than 80 J / m; the copolymerized polypropylene II is high-rigidity copolymerized polypropylene with the flexural modulus of more than 1200 Mpa; the diameter of the glass fiber is 8-17 microns; and the particle size of the sericite is 800-1250 meshes. According to the glass fiber reinforced polypropylene compound material, the effect of very low warpage and even no warpage can be achieved on the premise of keeping high heat resistance and high rigidity.

Description

technical field [0001] The invention relates to a glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Generally, glass fiber reinforced polypropylene composite materials have high rigidity and heat resistance, but on the one hand, because the length of glass fiber distributed in polypropylene resin is much larger than the diameter of glass fiber, in thinner product parts, The orientation of glass fibers can easily lead to product warping; on the other hand, polypropylene is a crystalline polymer, and the size of polypropylene spherulites and crystallization cycle directly affect the degree of warping of glass fiber reinforced polypropylene products. [0003] Patent CN1479765A discloses a low warpage polypropylene resin composition. The matrix resin of the composition is isotactic polypropylene homopolymer, unsaturated carboxylic acid or its derivatives are added to modify polypropylene, and the inorganic fil...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L51/06C08K13/04C08K7/14C08K7/00C08K3/34B29C47/92B29C48/92
CPCB29B7/46B29B7/72B29B7/90B29B9/06B29B9/12B29B9/14B29C48/04B29C48/40B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 栾福进张振华
Owner ECOVACS ROBOTICS (SUZHOU ) CO LTD
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