Environment-friendly heat and low temperature resisting meal box and production technology thereof

A low-temperature-resistant and environment-friendly technology, applied in the field of environment-friendly heat-resistant and low-temperature-resistant lunch boxes and their production processes, can solve the problems of poor heat resistance and low temperature resistance, affecting the mechanical properties of the lunch boxes, and being difficult to degrade. Good mechanical properties, increased degradability, and weight reduction effects

Inactive Publication Date: 2016-08-03
SUZHOU FENGZE PLASTIC IND LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its production raw materials are polystyrene, foaming agent, photosensitizer, etc., which are harmful to the human body, difficult to degrade, and easy to cause environmental pollution
Although there are some types of degradable fast food boxes on the market, their heat resistance and low temperature resistance are not good. If the temperature is too high or too low, the mechanical properties of the lunch box will be affected, and it is easy to deform or break.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] S1: According to the mass fraction of the agent, weigh 50 parts of polypropylene, 50 parts of propylene-ethylene copolymer, 2 parts of foaming agent, 10 parts of modified crop straw powder, 1 part of compatibilizer, 2 parts of antioxidant, flame retardant 1 part of agent, put the crop stalks in a dryer to dry, and the drying temperature is controlled at 80°C. After drying, the moisture content of the crop straw is not more than 3%. Then the crop stalks are pulverized, and then the non-ionic surfactant is added and mixed evenly to obtain the modified crop stalk powder; the dosage of the non-ionic surfactant is 6% of the modified crop stalk powder.

[0026] S2: Mix polypropylene, propylene-ethylene copolymer and foaming agent in a high-speed mixer evenly for 30 minutes, then add modified crop straw powder, compatibilizer, antioxidant and flame retardant in sequence;

[0027] S3: Add the mixture obtained in S2 into a twin-screw extruder for melt blending and granulation t...

Embodiment 2

[0032] S1: According to the mass fraction agent, weigh 55 parts of polypropylene, 30 parts of propylene-ethylene copolymer, 3 parts of foaming agent, 15 parts of modified crop straw powder, 3 parts of compatibilizer, 1 part of antioxidant, flame retardant 3 parts of agent, put the crop stalks in a dryer to dry, and the drying temperature is controlled at 80°C. After drying, the moisture content of the crop straw is not more than 3%. Then the crop stalks are pulverized, and then the non-ionic surfactant is added and mixed uniformly to obtain the modified crop stalk powder; the dosage of the non-ionic surfactant is 8% of the modified crop stalk powder.

[0033] S2: Mix polypropylene, propylene-ethylene copolymer and foaming agent in a high-speed mixer evenly for 50 minutes, then add modified crop straw powder, compatibilizer, antioxidant and flame retardant in sequence;

[0034] S3: Add the mixture obtained in S2 into a twin-screw extruder for melt blending and granulation to o...

Embodiment 3

[0039] S1: According to the mass fraction of the agent, weigh 60 parts of polypropylene, 35 parts of propylene-ethylene copolymer, 5 parts of foaming agent, 15 parts of modified crop straw powder, 4 parts of compatibilizer, 3 parts of antioxidant, flame retardant 3 parts of agent, put the crop stalks in a dryer to dry, and the drying temperature is controlled at 70°C. After drying, the moisture content of the crop straw is not more than 3%. Then the crop stalks are pulverized, and then the non-ionic surfactant is added and mixed evenly to obtain the modified crop stalk powder; the dosage of the non-ionic surfactant is 8% of the modified crop stalk powder.

[0040] S2: Mix polypropylene, propylene-ethylene copolymer and foaming agent in a high-speed mixer evenly for 30 minutes, then add modified crop straw powder, compatibilizer, antioxidant and flame retardant in sequence;

[0041] S3: Add the mixture obtained in S2 into a twin-screw extruder for melt blending and granulation...

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Abstract

The invention discloses an environment-friendly heat and low temperature resisting meal box and a production technology thereof. The meal box is prepared from, by weight, 50-60 parts of polypropylene, 30-50 parts of a propylene-ethylene copolymer, 1-5 parts of a foaming agent, 10-15 parts of modified crop straw powder, 1-5 parts of compatilizer, 1-5 parts of antioxidant and 1-5 parts of fire retardant. The modified crop straw powder is a mixture of crop straw powder and nonionic surfactant, and the dosage of the nonionic surfactant accounts for 5-10% that of the modified crop straw powder. The meal box is easy to degrade and will not deform or send a smell (low smell) at high temperature, embrittlement of the material is avoided at low temperature, a good mechanical property can be kept at high and low temperature, and the preparing technology is simple.

Description

technical field [0001] The invention relates to a lunch box and a production method thereof, in particular to an environment-friendly heat-resistant and low-temperature resistant lunch box and a production process thereof. Background technique [0002] Most of the fast food boxes widely used at present are foamed plastic lunch boxes. Its production raw materials are polystyrene, foaming agent, photosensitizer, etc., which are harmful to the human body, difficult to degrade, and easy to cause environmental pollution. Although there are some types of degradable fast food boxes on the market, their heat resistance and low temperature resistance are not good. If the temperature is too high or too low, the mechanical properties of the lunch box will be affected, and it is easy to deform or break. Contents of the invention [0003] The purpose of the present invention is to overcome the defect of prior art, provide a kind of lunch box and its production technology. The lunch b...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/16C08L97/02C08L51/06C08K13/06C08K9/06C08K3/22C08K5/103C08J9/08
CPCC08L23/12C08J9/08C08J2323/12C08J2323/14C08J2423/12C08J2423/14C08K2201/011C08L23/14C08L2201/06C08L2201/08C08L2203/14C08L2205/02C08L2205/035C08L97/02C08L51/06C08K13/06C08K9/06C08K2003/2227C08K5/103
Inventor 尤志强
Owner SUZHOU FENGZE PLASTIC IND LIMITED
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