Split resistant putty powder and producing process

A technology of anti-cracking putty and quartz sand, applied in the direction of filling slurry, etc., can solve problems such as affecting construction quality, poor tolerance, falling off, etc., to avoid hollow walls, increase air permeability, and good water resistance.

Inactive Publication Date: 2009-07-29
张鼎赛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Putty powder is mainly processed from heavy calcium carbonate, white cement and other materials. After the primer is solidified, the hardness is moderate, which is convenient for sanding. However, due to...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Prepare raw materials, grind heavy calcium carbonate and light calcium carbonate to about 500 mesh, screen 100 mesh quartz sand, and set aside; use flax or jute, soak in water for about 30 hours, mash and comb with metal combs, can be used in water The fibers are combed out to obtain clean long hemp fibers and dried in the sun, naturally air-dried, or in order to speed up drying, hot air can be used to air-dry. After drying, the standard of long fiber filaments reaches a fineness of 1.5-5 decitex and a density of 1-2g / cm 3 The hemp fiber of left and right sides is cut short by carrying out length 2-10mm scope.

[0015] Take the production of 100kg anti-cracking putty powder as an example. The processed raw materials are selected according to the weight of the components: heavy calcium carbonate 40kg, light calcium carbonate 8kg, quartz sand 25kg, white cement 21kg, methyl cellulose 1kg, bentonite 2kg, Put 1kg of titanium dioxide, 1kg of rubber powder, and 1kg of hemp f...

Embodiment 2

[0017] Prepare the raw materials according to the same process as the above example, and mix and stir the raw materials according to the ratio range of the following preferred raw materials to obtain a relatively hard texture suitable for exterior wall primer putty, including heavy calcium carbonate 30-35%, light calcium carbonate Calcium carbonate 5-7%, quartz sand 30-35%, white cement 25-30%, methyl cellulose 0.5-0.7%, bentonite 1-2%, titanium dioxide 0.5-0.7%, rubber powder 0.5-0.7%, 0.5-1% hemp fiber, of which 400-500 mesh heavy calcium carbonate and light calcium carbonate powder are selected, and 70-100 mesh quartz sand is screened.

Embodiment 3

[0019] According to the same process as the above example, prepare the raw materials, and mix and stir the raw materials according to the following preferred raw material ratio range, you can get a soft texture, easy to sand and flat, suitable for interior wall primer putty, of which heavy calcium carbonate 35-45 %, light calcium carbonate 7-10%, quartz sand 20-25%, white cement 20-25%, methyl cellulose 0.7-1%, bentonite 2-3%, titanium dioxide 0.7-1%, rubber powder 0.7% -1%, hemp fiber 1-1.5%, wherein heavy calcium carbonate and light calcium carbonate powder of 500-600 mesh are selected, and quartz sand of 110-140 mesh is screened.

[0020] The rubber powder can choose French Rhodia redispersible latex powder (VAE) V-29, and the model produced by Japan Kuraray Co., Ltd. distributed by Shanghai Houbo Trading Co., Ltd. is SP-3000 / SP-4000 / SP-4000C Kuraray EVA redispersible latex powder.

[0021] Methylcellulose can be selected from methylcellulose (MC) and hydroxypropylmethylce...

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Abstract

The invention relates to a crack resistant lacquer putty powder and a manufacturing technique thereof. The invention is characterized in that the crack resistant lacquer putty powder is prepared by the raw materials with the weight percentage: 30-50% of ground calcium carbonate, 5-10% of precipitated calcium carbonate, 20-35% of quartz sand, 20-30% of white cement, 0.5-1% of methyl cellulose, 1-3% of swell soil, 0.5-1% of titanium pigment, 0.5-1% of rubber powder and 0.5-1.5% of vegetable fiber. The manufacturing technique is completed according to the steps: the ground calcium carbonate is ground and processed, the quartz sand is screened, and then the vegetable fiber is processed; the raw materials are put into an agitating tank to be stirred and mixed, and the mixed powder material is filled into bags after being exhausted. The invention has the characteristics of high strength, good water resisting property, non-toxicity, odourlessness, yellowing resistance and the like; as being prepared by water, the crack resistant lacquer putty powder is easy to construct and leveled by sand; under the condition of large humidity and temperature difference change, the constructed wall does not craze and fall off, has no phenomenon of sand buckle, and is long in service life.

Description

Technical field: [0001] The invention belongs to the field of building materials, in particular to an anti-cracking putty powder used for priming interior and exterior walls and a production process thereof. Background technique: [0002] At present, there are many materials used for interior and exterior walls in the construction industry. Traditionally, gypsum, talcum powder, lime paste, and white cement are infiltrated with 107 glue, and stirred into a paste for construction and scraping. As people pay more attention to environmental protection, especially interior walls In terms of primer, 107 glue has been abandoned, and most of them use putty powder to adjust water for primer. Putty powder is mainly processed from heavy calcium carbonate, white cement and other materials. After the primer is solidified, the hardness is moderate, which is convenient for sanding. However, due to the lack of fibers in the material, it is easy to cause cracks when used in areas with high a...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 张鼎赛
Owner 张鼎赛
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