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Shrinkage resistant plastic woven bag and preparing method thereof

A plastic woven bag and anti-shrinkage technology, applied in the field of plastic woven bags, can solve the problems of carbon nanotubes with large aspect ratio and specific surface area, unable to show excellent performance, difficult to disperse uniformly, etc., to achieve strong anti-ultraviolet performance, excellent Shrinkage resistance, effect of improving impact 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

[0009] However, there are very few active groups on the surface of carbon fibers and carbon nanotubes, and the interaction with polymer material groups is very weak, and the aspect ratio and specific surface area of ​​carbon nanotubes are large, so it is difficult to polymerize them when they are used to prepare polymer composites. Evenly dispersed in the material, easy to agglomerate, unable to reflect its excellent performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Shrinkage resistant plastic woven bag and preparing method thereof
  • Shrinkage resistant plastic woven bag and preparing method thereof
  • Shrinkage resistant plastic woven bag and preparing 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] An anti-shrinkage 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, 6 parts of polyoxymethylene, 4 parts of polyethylene / winter rye peptide complex, 3 parts of modified nano carbon, ethylene-methyl acrylate 2 parts of copolymer, 2 parts of anti-aging agent, 2 parts of tributyl citrate, 2 parts of coupling agent, 0.8 part of polyethylene wax, 0.4 part of composite antioxidant, 0.2 part of bitter almond oil;

[0067] The ethylene-methyl acrylate copolymer preferably uses U.S. DuPont EMA1125AC;

[0068] The composite antioxidant is uniformly mixed with antioxidant 1010 and antioxidant 168 at a mass ratio of 1.5:3.

[0069] The preparation method includes the following steps: First, accurately weigh each raw material according to the formula, and mix the materials while stirring according to the principle of the equal-vo...

Embodiment 3

[0075] An anti-shrinkage plastic woven bag is mainly prepared from the following raw materials in parts by weight:

[0076] 100 parts of polypropylene, 12 parts of calcium fruit fiber, 10 parts of linear low density polyethylene, 5 parts of polyoxymethylene, 3 parts of polyethylene / winter rye peptide complex, 2 parts of modified nano-carbon, ethylene-methyl acrylate 1.5 parts of copolymer, 1.2 parts of anti-aging agent, 0.8 part of tributyl citrate, 0.8 part of coupling agent, 0.6 part of polyethylene wax, 0.3 part of composite antioxidant, 0.1 part of bitter almond oil;

[0077] The ethylene-methyl acrylate copolymer preferably uses U.S. DuPont EMA1125AC;

[0078] The composite antioxidant is uniformly mixed with antioxidant 1010 and antioxidant 168 at a mass ratio of 1:2.

[0079] The preparation method includes the following steps: First, accurately weigh each raw material according to the formula, and mix the materials while stirring according to the principle of the equa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a shrinkage resistant plastic woven bag. Polypropylene is adopted as a base stock, variety and formula of a master batch raw material are optimized, a production technology is improved, modified nanocarbon which can remarkably improve shrinkage resistant performance, relative tension load, intensity, tenacity and elasticity modulus of the plastic woven bag, calcium fruit fiber which can remarkably improve shock resistance of the plastic woven bag, be easily degraded biologically and reduce the production cost, polyethylene / winter rye peptide compound which can greatly improve low temperature resistance of the plastic woven bag, and bitter almond oil which can effectively improve lubricity and inoxidizability of the plastic woven bag are scientifically compounded, and finally the shrinkage resistant plastic woven bag is prepared. The molding shrinkage of the preparing raw materials of the plastic woven bag is low and is lowered by 45-47% than that of a merchant modified polypropylene material with a low shrinking percentage, thus the plastic woven bag has good shrinkage performance; in addition, the prepared shrinkage resistant plastic woven bag is good in dimensional stability, does not shrink, is very applicable to environmental requirements in the storing and using processes, stable in size, and does not generate shrinkage behaviors.

Description

technical field [0001] The invention relates to a plastic woven bag, in particular to an anti-shrinkage 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 woven bags ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L97/02C08L23/08C08L71/02C08L23/06C08L91/00C08K13/06C08K9/02C08K9/00C08K7/24C08K7/06C08K5/11C12P21/06D01F8/06D01F1/10
CPCC08L23/12C08K2201/011C08L2201/06C08L2201/08C08L2203/12C08L2205/025C08L2205/035C08L2205/16C08L97/02C08L23/0815C08L71/02C08L23/06C08L23/0869C08L91/00C08K13/06C08K9/02C08K9/00C08K7/24C08K7/06C08K5/11
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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