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Polypropylene resin composite for filling hollow shaping product and preparation method thereof

A polypropylene resin and composition technology, which is applied in the field of filled polypropylene resin composition for hollow molding and its preparation field, can solve the problems that it is difficult to uniformly disperse inorganic fillers, the impact strength is difficult to meet the requirements of falling shelves, and it is difficult to form thin-walled containers. problems such as stability and rapidity, to achieve the effect of good toughness, low thermal expansion coefficient and low shrinkage rate

Inactive Publication Date: 2010-08-04
合诚技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this patent is that it is difficult to uniformly disperse the inorganic filler in the polypropylene resin system through the kneading molding process, so that it is difficult to meet the stringent requirements for the stability and rapidity of thin-walled container molding; in addition, the plastic container prepared by this patent method, Its impact strength (40 ~ 42KJ / m 2 ) is difficult to meet the shelf drop requirements

Method used

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  • Polypropylene resin composite for filling hollow shaping product and preparation method thereof
  • Polypropylene resin composite for filling hollow shaping product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) First use the surface modifier γ-glycidyl etheroxypropyl trimethoxysilane KH-560 to carry out surface coating treatment on talc powder (particle size: 8.0 μm) in a high-speed mixer to obtain coated talc powder , the consumption of surface modifier is 0.4% of talcum powder total amount. The treatment process conditions are as follows: the rotation speed is 1000r / min, the treatment temperature is 130°C, and the treatment time is 10min.

[0042] Surface modifier stearic acid is used in a high-speed mixer to carry out surface coating treatment to calcium carbonate (particle size is 10.0 μm) to obtain coated calcium carbonate, and the consumption of surface modifier is 3.0% of the total amount of calcium carbonate. The treatment process conditions are as follows: the rotation speed is 1500r / min, the treatment temperature is 90°C, and the treatment time is 30min.

[0043] (2) According to the weight ratio shown in Table 1, 90 parts by weight of impact copolymer polypropy...

Embodiment 2

[0046] (1) Pretreatment of inorganic fillers. Use the surface modifier γ-aminopropyltriethoxysilane KH-550 in a high-speed mixer to carry out surface coating treatment on the inorganic filler talc powder (particle size is 5.0 μm) to obtain coated talc powder, surface modifier The dosage is 0.5% of the total amount of talcum powder. The treatment process conditions are as follows: the rotation speed is 1500r / min, the treatment temperature is 115°C, and the treatment time is 15min.

[0047] (2) according to the weight ratio shown in table 1, the polypropylene resin 1 (PP1) of 71.8 weight parts is impact copolymerized polypropylene, and the ethylene content of impact copolymerized polypropylene is 8% (mass content), melt index is 2.5g / 10min (230 ℃, 2.16kg), the functional polyolefin of the maleic anhydride grafted polyethylene of 3 weight parts (active group content is 0.4%, melt index is 2.0g / 10min (230 ℃, 2.16kg )), 25 parts of coated talcum powder, 0.2 parts by weight of ant...

Embodiment 3

[0050] (1) Use surface modifier γ-aminopropyltriethoxysilane KH-550 to carry out surface coating treatment to talcum powder (particle size is 5.0 μ n) in high-speed mixer to obtain coated talcum powder, surface modification The consumption of agent is 0.8% of talcum powder total amount. The treatment process conditions are as follows: the rotation speed is 1500r / min, the treatment temperature is 115°C, and the treatment time is 15min.

[0051] Coated calcium carbonate (with a particle size of 8.0 μm) was surface-coated in a high-speed mixer with the surface modifier isopropyl dioleic acid acyloxy (dioctyl phosphate acyloxy) titanate to obtain coated carbonate. Calcium, the amount of surface modifier is 0.4% of the total amount of calcium carbonate. The treatment process conditions are as follows: the rotation speed is 1500r / min, the treatment temperature is 105°C, and the treatment time is 15min.

[0052] (2) According to the weight ratio shown in Table 1, 71.8 parts by weig...

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Abstract

This invention relates to a kind of acrylic resin compound used for filling hollow mold and its preparation method. This compound includes 45 to 90 shares acrylic resin according to weight, melt index is 1.5 to 5.0g / 10min; 5 to 90 weight shares inorganic filler hand led by coating , particle size is 1.0 to 10.0 mu M; 0.2 to 0.5 weight shares antioxidant. This compound is adaptable to hollow blow molding craft, possess higher rigidity, lower cost as well as shorter forming cycle comparing with traditional polypropylene hollow product; this resinoid compound also possess Heat distortion temperature, tenacity as well as favorable dimensional stability and thermal degradation, at the same time possess lower thermal coefficient of expansion, contraction ratio.

Description

technical field [0001] The invention belongs to the technical field of plastic modification, and specifically refers to a filled polypropylene resin composition for hollow molding and a preparation method thereof. Background technique [0002] As a general-purpose plastic, polypropylene is used in injection-molded pipe fittings, decorative panels, blow-molded food and drug packaging containers, various electrical housings, and auto parts due to its small specific gravity, easy processing, and corrosion resistance. field. In practical applications, the use of polypropylene resin generally requires modification of polypropylene resin according to the properties required for various products, such as adding inorganic fillers to the polypropylene resin system to improve the rigidity, impact strength, and durability of polypropylene resin. Heat etc. [0003] Talc powder and calcium carbonate are widely used inorganic fillers for polypropylene resin modification. As a granular ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C49/78C08L23/12B29B9/06B29C47/60B29L22/00B29C47/90C08K9/00C08K5/524B29C48/90
Inventor 蒋文真李刚谢怀兴
Owner 合诚技术股份有限公司
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