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High-temperature-resistant plastic woven bag and preparation method thereof

A plastic woven bag, high temperature resistant technology, used in textiles and papermaking, conjugated synthetic polymer rayon, filament/thread forming, etc. The impact strength, melt index elongation at break, relative tensile force cannot be reached, and the quality index of raw materials is reduced, so as to achieve good physical properties and performance, improve lubricity, oxidation resistance, and excellent high temperature resistance.

Inactive Publication Date: 2017-03-15
吴忠市富林塑料包装制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Most of the above-mentioned patents are modified high-temperature-resistant polypropylene. Although the high-temperature resistance is better, the impact strength, melt index, elongation at break, and relative tensile force of polypropylene cannot meet the raw material requirements of plastic woven bags. It will even reduce the quality indicators of the above raw materials, so it is not suitable as a filler masterbatch for polypropylene plastic woven bags

Method used

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  • High-temperature-resistant plastic woven bag and preparation method thereof
  • High-temperature-resistant plastic woven bag and preparation method thereof
  • High-temperature-resistant plastic woven bag and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1 raw material preparation

[0047] 1. Preparation of calcium fruit fiber:

[0048] The preparation method of the said calcium fruit fiber comprises the following steps: uniformly mixing fresh calcium fruit stems, calcium fruit leaves and waste sawdust according to the mass ratio of 5:4:1.5, placing them in an ultrasonic cleaning machine at 200W and 30KHz for cleaning for 4 minutes, draining Drying, crushing, adding water with 1 times the amount of the crushed material, ultrasonic extraction at room temperature 300W, 40KHz for 12min, and then performing high-voltage pulse electric field treatment for 12min under the conditions of electric field strength 30kV / cm, pulse time 500μs, and pulse frequency 300Hz; adjust the pH value 8. Add biological enzyme with 0.2% mass of the mixture, and enzymatically hydrolyze at 55°C for 12 minutes; the enzymolyzed solution is concentrated under reduced pressure to a solid content of 50%, and placed in a microwave dryer at 200...

Embodiment 2

[0065] A high temperature resistant plastic woven bag is mainly prepared from the following raw materials in parts by weight:

[0066] 100 parts of polypropylene, 14 parts of calcium fruit fiber, 11 parts of linear low density polyethylene, 7 parts of modified carbon nanotubes, 6 parts of polyoxymethylene, 4 parts of polyethylene / winter rye peptide complex, 4 parts of ultraviolet absorber 2 parts of ethylene-methyl acrylate copolymer, 2 parts of anti-aging agent, 1 part of tributyl citrate, 1 part of coupling agent, 0.8 part of polyethylene wax, 0.4 part of composite antioxidant, 0.3 part of bitter almond oil ;

[0067]The ultraviolet absorber is UV-531.

[0068] The ethylene-methyl acrylate copolymer is preferably US DuPont EMA1125AC.

[0069] The composite antioxidant is uniformly mixed with antioxidant 1010 and antioxidant 168 at a mass ratio of 1.5:3.

[0070] The preparation method includes the following steps: First, accurately weigh each raw material according to the...

Embodiment 3

[0076] A high temperature resistant plastic woven bag is mainly prepared from the following raw materials in parts by weight:

[0077] 100 parts of polypropylene, 12 parts of calcium fruit fiber, 10 parts of linear low density polyethylene, 3 parts of modified carbon nanotubes, 5 parts of polyoxymethylene, 3 parts of polyethylene / winter rye peptide complex, 3 parts of ultraviolet absorber 1.5 parts of ethylene-methyl acrylate copolymer, 1.2 parts of anti-aging agent, 0.8 parts of tributyl citrate, 0.8 parts of coupling agent, 0.6 parts of polyethylene wax, 0.3 parts of composite antioxidant, 0.1 part of bitter almond oil ;

[0078] The ultraviolet absorber is UV-531.

[0079] The ethylene-methyl acrylate copolymer is preferably US DuPont EMA1125AC.

[0080] The composite antioxidant is uniformly mixed with antioxidant 1010 and antioxidant 168 at a mass ratio of 1:2.

[0081] The preparation method includes the following steps: First, accurately weigh each raw material accor...

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Abstract

The invention discloses a high-temperature-resistant plastic woven bag and a preparation method thereof. According to the invention, polypropylene is used as a base material, the varieties and formula of master batch raw materials are optimized, production technology is improved, and scientific compounding is carried out; the plastic woven bag employs Cerasus humilis fiber capable of substantially improving the shock resistance of the plastic woven bag and reducing production cost and easy to biodegrade, modified carbon nano-tubes capable of substantially improving the high-temperature resistance, relative tensile load, strength, toughness and elastic modulus of the plastic woven bag, a polyethylene / winter rye peptide compound capable of greatly improving the low-temperature resistance of the plastic woven bag, and bitter apricot kernel oil capable of effectively enhancing the lubricity and inoxidizability of the plastic woven bag; and the above-mentioned materials and other processing aids cooperate with each other, so the environment-friendly high-temperature-resistant plastic woven bag with good physical properties is prepared. The plastic woven bag provided by the invention has a filling temperature as high as 200 DEG C; filling of materials with temperatures of 160 DEG C, 170 DEG C, 180 DEG C, 190 DEG C and 200 DEG C does small harm to appearance of the plastic woven bag; and after natural storage of the plastic woven bag at room temperature for 24 h, the retention rate of the breaking strength of the plastic woven bag is still 76 to 96% and the retention rate of breaking elongation is 75 to 95%.

Description

technical field [0001] The invention relates to a plastic woven bag, in particular to a high-temperature-resistant plastic woven bag and a preparation method thereof. Background technique [0002] Plastic woven bags are made of polypropylene (PP) and polyethylene (PE) resins as the main raw materials, adding a small amount of auxiliary materials, mixing them and melting them through an extruder, extruding plastic films and cutting them into filaments, which are processed at a temperature lower than the melting temperature of the resins Stretching, making high-strength, low-elongation flat yarn through molecular orientation and heat setting, and then winding, weaving, cutting, and sewing to make plastic woven bags. Plastic woven bags are divided into TA type, A type, B type and C type according to the loading quality range, TA type is allowed to load 10~20kg, A type is allowed to load 21~30kg, B type is allowed to load 31~50kg , Type C is allowed to load 51 ~ 60kg. Plastic ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L97/02C08L23/06C08L91/00C08L51/06C08K13/06C08K9/00C08K9/02C08K7/24C08K5/11C08K5/134C08K5/526D01F8/06D01F1/10D01D5/42
CPCC08L23/12C08K2201/011C08L2201/08C08L2203/12C08L2205/02C08L2205/025C08L2205/035C08L2205/16D01D5/42D01F1/10D01F8/06C08L23/0815C08L97/02C08L23/06C08L91/00C08L51/06C08K13/06C08K9/00C08K9/02C08K7/24C08K5/11C08K5/1345C08K5/526
Inventor 张伟王春王军奚治平余荣寒闫卫东杨晓珍
Owner 吴忠市富林塑料包装制品有限公司
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