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Flat filament master batch and preparation method thereof

A masterbatch and flat yarn technology, applied in the field of plastic processing, can solve problems such as reducing the tensile strength of woven bags, achieve good surface quality and tensile properties, increase affinity, and increase the effect of stretching ratio

Inactive Publication Date: 2019-01-11
东莞市长盈塑料编织包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Plastic woven bags are a kind of plastic packaging commonly used in production and life. With the improvement of living standards and the increasingly fierce market competition, people have higher and higher requirements for plastic woven bags, requiring products to have higher tension and more Low price, which requires b

Method used

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  • Flat filament master batch and preparation method thereof
  • Flat filament master batch and preparation method thereof
  • Flat filament master batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of flat silk master batch, comprises the raw material of following weight portion:

[0037]

[0038] The carrier resin is polypropylene, the weight average molecular weight of the carrier resin is 320000, the melt flow rate of the carrier resin is 3.2g / 10min, and the tensile yield strength of the carrier resin is 35MPa.

[0039] The toughening modifier is compounded by PP toughening agent and EVA resin at a weight ratio of 9:1.5.

[0040] The preparation method of the PP toughening agent comprises the following steps: mixing the solvent, the main catalyst and the co-catalyst in a molar ratio of 1000:4:0.8, and introducing a mixed gas into the solvent under nitrogen and a pressure of 1.5 MPa for polymerization reaction, The temperature of the polymerization reaction is 140°C, and the reaction time is 1.5h. After the reaction, the solvent, main catalyst and co-catalyst are removed to obtain the PP toughening agent;

[0041] Wherein, the molar mass of the main c...

Embodiment 2

[0052] A kind of flat silk master batch, comprises the raw material of following weight portion:

[0053]

[0054] The carrier resin is polypropylene, the weight average molecular weight of the carrier resin is 80000, the melt flow rate of the carrier resin is 2.9g / 10min, and the tensile yield strength of the carrier resin is 34MPa.

[0055] The toughening modifier is compounded by PP toughening agent and EVA resin at a weight ratio of 8:1.

[0056] The preparation method of the PP toughening agent comprises the following steps: taking a solvent, a main catalyst and a cocatalyst and mixing them uniformly in a molar ratio of 1000:2:0.5, and passing a mixed gas into the solvent under nitrogen and a pressure of 1.4 MPa to perform a polymerization reaction, The temperature of the polymerization reaction is 120°C, and the reaction time is 1h. After the reaction, the solvent, main catalyst and co-catalyst are removed to obtain the PP toughening agent;

[0057] Wherein, the molar...

Embodiment 3

[0068] A kind of flat silk master batch, comprises the raw material of following weight portion:

[0069]

[0070] The carrier resin is polypropylene, the weight average molecular weight of the carrier resin is 400000, the melt flow rate of the carrier resin is 3.5g / 10min, and the tensile yield strength of the carrier resin is 36MPa.

[0071] The toughening modifier is compounded by PP toughening agent and EVA resin at a weight ratio of 10:2.

[0072] The preparation method of the PP toughening agent comprises the following steps: taking a solvent, a main catalyst and a cocatalyst and mixing them uniformly in a molar ratio of 1000:5:1, and passing a mixed gas into the solvent under nitrogen and a pressure of 1.6 MPa to perform a polymerization reaction, The temperature of the polymerization reaction is 160°C, and the reaction time is 2 hours. After the reaction, the solvent, main catalyst and co-catalyst are removed to obtain the PP toughening agent;

[0073] Wherein, the mo...

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Abstract

The invention relates to the technical field of plastic processing, and concretely relates to a flat filament master batch and a preparation method thereof. The flat master batch comprises, by weight,8-15 parts of carrier resin, 5-10 parts of a toughening modifier, 0.8-1.2 parts of a dispersant, 1-3 parts of a coupling agent and 76-82 parts of inorganic rigid particles. The inorganic rigid particles are activated under the action of the dispersant and the coupling agent with the carrier resin as a matrix in order to make the inorganic rigid particles well dispersed in the carrier resin, the toughening modifier has good compatibility with the carrier resin and the activated inorganic rigid particles in order to increase the toughness of the flat filament master batch, and the interaction of the carrier resin, the activated inorganic rigid particles and the toughening modifier improves the impact strength, the durability and the puncture resistance of the flat filament master batch, increases the draw ratio, improves the unit tensile force and prevents the reduction of the tensile strength and elongation of the flat filament master batch after the addition of the inorganic rigid particles, so the flat filament master batch is durable, and the effects of consumption reduction and cost saving are achieved.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to a flat wire masterbatch and a preparation method thereof. Background technique [0002] Plastic woven bags are a kind of plastic packaging commonly used in production and life. With the improvement of living standards and the increasingly fierce market competition, people have higher and higher requirements for plastic woven bags, requiring products to have higher tension and more Low price, which requires better reduction of energy consumption and production cost in the production process. Using filler masterbatch to reduce production cost is a common method in the production of plastic woven bags. Although adding ordinary filler masterbatch will reduce production Cost, but will greatly reduce the tensile strength of the woven bag. Therefore, there is an urgent need for a flat wire masterbatch that can reduce production costs while maintaining tensile strength, which...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L23/08C08K9/04C08K3/26C08K3/34C08J3/22
CPCC08J3/226C08J2323/12C08J2423/08C08J2423/14C08K3/34C08K9/04C08K2003/265
Inventor 李司懿
Owner 东莞市长盈塑料编织包装有限公司
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