High-filling high-temperature-resistant environment-friendly paper base material and preparation method thereof

A high-temperature-resistant, environmentally-friendly paper technology, applied in the field of composite filling substrates, can solve problems such as waste of resources, insufficient high-temperature resistance, and urgency, and achieve reduced probability of failure, good stiffness and flatness, and high-value recycling Effect

Inactive Publication Date: 2013-09-25
地球卫士(天津)环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, office paper for cultural writing includes offset paper, writing paper, electrostatic copy paper, computer printing paper, glossy paper, etc., which account for a considerable proportion. At present, one of the main problems of these office papers is that they are seriously insufficient in high temperature resistance (above 100°C). , especially in copying, computer printing, etc., often warp and wrinkle, and sometimes cause paper jams, etc., thereby wasting resources and affecting office efficiency
Therefore, it is imperative to develop a cheap environmentally friendly paper that can withstand temperatures above 100°C for a long period of time. There is no similar patent report at present.

Method used

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  • High-filling high-temperature-resistant environment-friendly paper base material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A kind of highly filled and high temperature resistant environmental protection paper base material and its preparation method, its preparation process is:

[0028] (1) Preparation of modified calcium carbonate powder: Add 100 parts of dry calcium carbonate powder with a particle size of 1000 mesh and 1 part of γ-methacryloxypropyl trimethoxysilane into a high-speed mixer that can be heated , heated up to 80°C and stirred at high speed for 120min, the modified calcium carbonate powder can be obtained;

[0029] (2) Preparation of mixed pellets: take 50 parts of modified calcium carbonate powder obtained in step (1), 50 parts of polyethylene terephthalate, intrinsic viscosity 0.65dL / g, and place in an oven at 120°C before use Dry for 4 hours, add them together into the internal mixer, melt and blend at 265°C for 30 minutes, and then extrude and granulate through single-screw to obtain the mixed pellets;

[0030] (3) Preparation of environmentally friendly p...

Embodiment 2

[0032] Embodiment 2: A kind of high-filling high-temperature-resistant environmentally-friendly paper base material and its preparation method, its preparation process is:

[0033] (1) Preparation of modified calcium carbonate powder: Add 100 parts of dry calcium carbonate powder with a particle size of 2000 mesh and 0.7 part of γ-chloropropyltriethoxysilane into a high-speed mixer that can be heated, and heat up to 100 ℃ and high-speed stirring for 60 minutes, the modified calcium carbonate powder can be obtained;

[0034] (2) Preparation of mixed pellets: take 65 parts of modified calcium carbonate powder obtained in step (1), 35 parts of polyethylene terephthalate, intrinsic viscosity 0.60dL / g, and place in an oven at 120°C before use Dry for 4 hours, add them together into the internal mixer, melt and blend at 265°C for 30 minutes, and then extrude and granulate through single-screw to obtain the mixed pellets;

[0035] (3) Preparation of environmentally friendly paper su...

Embodiment 3

[0037] Embodiment 3: A kind of highly filled and high temperature resistant environmental protection paper substrate and its preparation method, its preparation process is:

[0038] (1) Preparation of modified calcium carbonate powder: 100 parts of dry calcium carbonate powder with a particle size of 4000 mesh and 0.5 part of isopropyl dioleate (dioctyl phosphate acyloxy) titanate Add it into a high-speed mixer that can heat up, heat up to 120°C and stir at a high speed for 30 minutes to obtain modified calcium carbonate powder;

[0039] (2) Preparation of mixed pellets: take 80 parts of modified calcium carbonate powder obtained in step (1), 20 parts of recycled polyethylene terephthalate, intrinsic viscosity 0.75dL / g, and dry in an oven at 120°C before use Dry in medium for 4 hours, put them into the internal mixer together, melt and blend at 265°C for 30 minutes, and then extrude and granulate through single screw to get the mixed pellets;

[0040](3) Preparation of enviro...

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Abstract

The invention relates to a high-filling high-temperature-resistant environment-friendly paper base material and a preparation method thereof. The environment-friendly paper base material comprises the following components in parts by weight: 50-80 parts of modified inorganic powder, 20-50 parts of high-temperature-resistant polymer, 0.02-0.5 part of chain extender, 0.02-0.25 part of heat stabilizer and 0.02-0.25 part of foaming agent. The preparation method of the environment-friendly paper base material comprises the following steps: (1) preparation of modified inorganic powder; (2) preparation of modified inorganic powder / high-temperature-resistant polymer mixture granules; and (3) preparation of the high-filling high-temperature-resistant environment-friendly paper base material. The environment-friendly paper base material provided by the invention relieves the white pollution caused by waste plastic, achieves the goal of high recovery value, and also implements high filling of the inorganic powder; and meanwhile, the environment-friendly paper base material has favorable stiffness, can resist the temperature of 120 DEG C above, is beneficial to enhancing the work efficiency, and reduces the possibility of paper jams and other failures.

Description

technical field [0001] The invention belongs to the technical field of composite filling base materials in papermaking technology, in particular to a high-filling high-temperature-resistant environment-friendly paper base material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is a semi-crystalline thermoplastic polyester with excellent physical and mechanical properties in a wide temperature range, such as good toughness, impact resistance, friction resistance, and creep resistance. The long-term use temperature can reach 120 ° C, and the electrical insulation is excellent. In recent years, with the continuous increase in the output of PET products, especially since the application of beverage and food packaging materials, it has grown rapidly at a rate of 10% per year, and disposable PET packaging bottles are mostly discarded at will after use, causing serious environmental pollution. , its recycling has become an importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/10
Inventor 宋旭卢灿辉陈珍明曹东旭马宝山
Owner 地球卫士(天津)环保新材料有限公司
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